The invention comprises a novel nozzle for use in wellbore tubing strings. The nozzle has an annular cylindrical nozzle body surrounding a frangible material. The frangible material is bonded to the nozzle body forming a seal. When deployed in a well, the nozzle prevents fluidic communication between the inside of the tubing sting and an annulus of the well. A further component of the nozzle may comprise a stress riser that, when actuated, breaks the frangible material, allowing fluidic communication between the inside of the tubing string and the annulus of the well. Subsequent well operations (e.g., fracturing or production) may then be conducted.
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
The invention comprises a novel nozzle for use in wellbore tubing strings. The nozzle has an annular cylindrical nozzle body surrounding a frangible material. The frangible material is bonded to the nozzle body forming a seal. When deployed in a well, the nozzle prevents fluidic communication between the inside of the tubing sting and an annulus of the well. A further component of the nozzle may comprise a stress riser that, when actuated, breaks the frangible material, allowing fluidic communication between the inside of the tubing string and the annulus of the well. Subsequent well operations (e.g., fracturing or production) may then be conducted.
A device such as a smart dart is configured to reversibly engage and disengage with a seat in a tubing string. In an engaged configuration, pressure applied above the device forces a first seat component to engage a second seat component. The interaction of the first seat component and the second seat component under pressure produces an inwardly radial circumferential force that grips the device within the seat and may also form a seal between the device and the seat.
A device such as a smart dart is configured to reversibly engage and disengage with a seat in a tubing string. In an engaged configuration, pressure applied above the device forces a first seat component to engage a second seat component. The interaction of the first seat component and the second seat component under pressure produces an inwardly radial circumferential force that grips the device within the seat and may also form a seal between the device and the seat.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
04 - Industrial oils and greases; lubricants; fuels
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Oil and gas well downhole tools for fracturing wells for stimulation of oil or gas recovery; oil and gas well tools: oil and gas well completion tools.
(2) Intelligent completion systems, namely, downhole sensors used to isolate, monitor, communicate with and control wells for increased productivity; oil and gas well electronic tools, namely, sensors, communication and monitoring devices for observing the fracturing and operations of oil and gas wells for oil and gas recovery.
A method for monitoring well operations comprises sensing oscillations occurring in the well during a well operation and generating a signal indicative of the oscillations. The signal is processed into sensed data indicative of the oscillations sensed in the well, and the sensed data is then compared with reference data associated with previously detected well operations, to identify the well operation that generated the sensed oscillations. The system that performs the well monitoring, comprises one or more transducers configured to sense the oscillations, and a processing system in communication with the transducer which identifies the well operation and the device that caused the oscillations, based on comparisons of data indicative of the oscillations, with reference data associated with previously detected well operations.
E21B 47/095 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes by detecting acoustic anomalies, e.g. using mud-pressure pulses
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 47/135 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
E21B 47/107 - Locating fluid leaks, intrusions or movements using acoustic means
A multi-zone, one trip completion system for a wellbore is described. A plurality of isolation packers is installed in borehole to isolate a plurality of zones of the annulus between a tubing string and a wellbore. Each tubing string section is positioned in a zone and comprises a selectively openable stimulation port to provide stimulation fluid to its zone and a selectively openable production port to receive fluid from its zone. The system also comprises a circulation system with a plurality of circulation tubes and circulation tube valves, being configurable in a plurality of configurations to selectively connect, via a circulation flow path, the central bore or the borehole annulus of a wellbore at each of the plurality of sections, to an upper circulation flow path open to an annulus above an uppermost of the plurality of isolation packers.
A liner hanger system enables installation of a liner hanger by means of a full bore casing to surface and provides pressure integrity between the casing's inner and outer sides. The liner hanger system comprises a liner hanger, along with an associated liner, coupled to a tieback casing string. The liner hanger and liner are deployed downhole connected to a tieback casing string. Once the liner has been lowered to the position of interest, first the liner hanger is anchored and cemented in position, and then, a packer is set to seal the lower annulus of the liner. The liner hanger system enables operations that used to require a plurality of trips, to be performed in a single trip. It does so without introducing any unwanted limitation to the inner diameter at any point between the wellhead and the end of the liner, and while also allowing for potential decoupling and removal of the tieback casing string from the liner hanger if desired.
E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
E21B 23/01 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
A method for monitoring well operations comprises sensing oscillations occurring in the well during a well operation and generating a signal indicative of the oscillations. The signal is processed into sensed data indicative of the oscillations sensed in the well, and the sensed data is then compared with reference data associated with previously detected well operations, to identify the well operation that generated the sensed oscillations. The system that performs the well monitoring, comprises one or more transducers configured to sense the oscillations, and a processing system in communication with the transducer which identifies the well operation and the device that caused the oscillations, based on comparisons of data indicative of the oscillations, with reference data associated with previously detected well operations.
E21B 47/095 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes by detecting acoustic anomalies, e.g. using mud-pressure pulses
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 47/107 - Locating fluid leaks, intrusions or movements using acoustic means
E21B 47/135 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
A multi-zone, one trip completion system for a wellbore is described. A plurality of isolation packers is installed in borehole to isolate a plurality of zones of the annulus between a tubing string and a wellbore. Each tubing string section is positioned in a zone and comprises a selectively openable stimulation port to provide stimulation fluid to its zone and a selectively openable production port to receive fluid from its zone. The system also comprises a circulation system with a plurality of circulation tubes and circulation tube valves, being configurable in a plurality of configurations to selectively connect, via a circulation flow path, the central bore or the borehole annulus of a wellbore at each of the plurality of sections, to an upper circulation flow path open to an annulus above an uppermost of the plurality of isolation packers.
An adjustable and fixed inflow control device is provided. According to one embodiment, the adjustable inflow control device comprises a set of flow path walls defining a flow path that extends from an inlet to an outlet. The inlet may be open to the outer surface of a tubular and the outlet may be fluidly connected to an inner diameter of the tubular. The flow path may be adapted to control flow of fluid between the outlet and the inlet. The inflow control device further comprises a movable regulator that is movable to alter the flow path. The movable regulator may be movable between a number of positions. The inflow control device may be modular.
A magnetic inflow control system (MAG-ICD) for controlling fluid inflow is provided which is based on a variation of conductivity and dielectric constant of fluids as an indicator of a well condition. The MAG-ICD is adapted to vary the flow rate of the fluid flowing in the production string when a water breakthrough is detected in the flow path. This way, if the reservoir recovers and the water content is reduced, the MAG-ICD can recover and allow for flow through the MAG-ICD to increase. If water break through should re-occur, the MAG-ICD will again respond to the increase in water production and choke flow through the MAG-ICD. The MAG-ICD is also adapted to incrementally reduce the flow in a production zone of a well upon detection of water or gas, as opposed to oil.
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
G01N 27/08 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
13.
WIRE-WRAPPED SCREEN WITH MULTI-WIRE WRAPPING AND METHODS OF MANUFACTURING WIRE-WRAPPED SCREENS
Sand control assemblies, or screens, with multi-wire wrapping and methods of manufacturing multi-wire wrapped screens are described. Two wires are wrapped concurrently around a base tube using supports arranged on the base tube, to form a wire-wrapped screen having a plurality of slots of selected sizes between adjacent wrappings. The wires are fed at an angle and a mechanical gauge is placed during wrapping between the one end of the wrapped loops and the feed wire to maintain a predefined slot width between them.
A downhole tool and method of operation thereof is provided. The downhole tool may be configured to permit fluid communication between a combined flowbore of the casing string and the downhole tool and the subterranean formation or wellbore, or both, after a pressure test has been completed, a second threshold pressure is reached or applied, and a third threshold pressure has been applied to the downhole tool.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 47/10 - Locating fluid leaks, intrusions or movements
E21B 34/00 - Valve arrangements for boreholes or wells
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
A multi-zone, one trip completion system for a wellbore is described. A plurality of isolation packers is installed in borehole to isolate a plurality of zones of the annulus between a tubing string and a wellbore. Each tubing string section is positioned in a zone and comprises a selectively openable stimulation port to provide stimulation fluid to its zone and a selectively openable production port to receive fluid from its zone. The system also comprises a circulation system with a plurality of circulation tubes and circulation tube valves, being configurable in a plurality of configurations to selectively connect, via a circulation flow path, the central bore or the borehole annulus of a wellbore at each of the plurality of sections, to an upper circulation flow path open to an annulus above an uppermost of the plurality of isolation packers.
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
16.
Wellbore stage tool with redundant closing sleeves
A stage tool comprises a body with a tubular wall, defining an outer surface and an inner surface. Fluid ports, such as cement circulation ports, extend through the tubular wall. The stage tool further comprises a primary closing sleeve. The primary closing sleeve may be movable along the outer surface of the tubular wall for closing the ports when the treatment of the wellbore stage ends. A secondary closing sleeve may be movable along the inner surface of the tubular wall for closing the port in case of failure of the primary closing sleeve or for redundancy. The primary closing sleeve may be actuated by an internal member joined to the primary closing sleeve by a crosslink and movable on the inner surface. The internal member and the secondary closing sleeve may move along different surfaces on the internal wall to avoid interference.
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 33/16 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement chargePlugs therefor
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A downhole tool and method of operation thereof is provided. The downhole tool may be configured to permit fluid communication between a combined flowbore of the casing string and the downhole tool and the subterranean formation or wellbore, or both, after a pressure test has been completed, a second threshold pressure is reached or applied, and a third threshold pressure has been applied to the downhole tool.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 47/10 - Locating fluid leaks, intrusions or movements
E21B 34/00 - Valve arrangements for boreholes or wells
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
Oil and gas well completion tools, namely, composite plugs in the nature of bridge and wire line plugs being plug valves, sliding sleeves in the nature of downhole control valves for use in hydraulic fracturing of oil and gas wells, wireline ball seats for use in conjunction with activation balls for downhole tool activation, wireline activation balls in the nature of ceramic and metal balls for use in the flow of fluids, hydraulically activated shifting tools in the nature of valves for use in downhole tool activation for oil and gas wells, circulating valves for use in the flow of fluids, hydraulically activated toe sleeves in the nature of valves for use in hydraulic fracturing of oil and gas wells, liner hangers, adapted for use in securing oil and gas wells, hydraulically activated running tools in the nature of valves for use in downhole tool conveyance for oil and gas wells, wiper darts in the nature of valves and plugs in the nature of metal, foam, and rubber plugs being plug valves for use in the flow of fluids, and centralizers for use in oil and gas wells, all of the foregoing as parts of oil and gas well downhole machines
Embodiments described herein relate to injecting steam into a wellbore using a device. The device includes a body having a bore configured to communicate steam through the body. The device also includes a sleeve movable in the bore of the body between a first position and a second position, wherein the sleeve in the first position blocks steam from exiting an opening of the body and the sleeve in the second position allows steam to exit the opening of the body. The device can be activated by an activation device conveyed down a tubing string and can include a seat on which the activation device. The seat is expandable to allow the activation device to pass.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 43/24 - Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/00 - Valve arrangements for boreholes or wells
21.
DEVICE AND METHOD FOR SAND CONTROL WITH ENHANCED SAND BRIDGING
Embodiments described herein provide well screens and methods that promote sand arching and reduced erosion. One embodiment is a well screen which generally comprises a wire which is spirally wound to form a cylinder with a slot between each role of the wire. The outer surface of the wire comprises one or more indented features shaped to promote sand bridging or reduced erosion. The indented feature may comprise a longitudinal channel.
A stage tool for wellbore annular cementing may be opened for cementing by hydraulic actuation of a sliding sleeve valve from over a fluid port. After sufficient cement has been introduced, the stage tool fluid port can be closed by compressing two telescopically arranged parts of its tubular body to further overlap each other and overlie the fluid port. This permits the stage tool to be closed without employing a plug.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/00 - Valve arrangements for boreholes or wells
E21B 23/06 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
An adjustable and fixed inflow control device is provided. According to one embodiment, the adjustable inflow control device comprises a set of flow path walls defining a flow path that extends from an inlet to an outlet. The inlet may be open to the outer surface of a tubular and the outlet may be fluidly connected to an inner diameter of the tubular. The flow path may be adapted to control flow of fluid between the outlet and the inlet. The inflow control device further comprises a movable regulator that is movable to alter the flow path. The movable regulator may be movable between a number of positions. The inflow control device may be modular.
An adjustable and fixed inflow control device is provided. According to one embodiment, the adjustable inflow control device comprises a set of flow path walls defining a flow path that extends from an inlet to an outlet. The inlet may be open to the outer surface of a tubular and the outlet may be fluidly connected to an inner diameter of the tubular. The flow path may be adapted to control flow of fluid between the outlet and the inlet. The inflow control device further comprises a movable regulator that is movable to alter the flow path. The movable regulator may be movable between a number of positions. The inflow control device may be modular.
A wellbore tool is provided that can withstand applied pressure tests without becoming hydraulically actuated. The wellbore tool includes a tubular housing including an inner bore; a tool mechanism responsive to fluid pressure; and an indexing mechanism that indexes responsive to tubing pressure cycles of at least an indexing pressure. The indexing mechanism is configured to activate the tool mechanism after a preset number of indexes. The wellbore tool can be pressure tested at pressures above an activation pressure without activating the tool mechanism.
An apparatus for fluid treatment of a borehole, the apparatus allowing initial outflow injection of fluids into a wellbore in which it is installed and then is actuable to allow fluid inflow control. The apparatus includes: a tubular body, a first port and a second port opened through the wall of the tubular body, the second port having a fluid inflow controller positioned to control the flow of fluid into the tubular body through the port, a sliding sleeve valve in the tubular body moveable from (i) a first position closing the first port and the second port to (ii) a second position closing the second port and permitting fluid flow through the first port and to (iii) a third position closing the first port and permitting fluid flow through the second port; a sleeve actuator for actuating the sliding sleeve valve to move from the first position to the second position in response to a force applied thereto; a releasable lock for locking the sliding sleeve valve in the first position and selected to maintain the sliding sleeve valve in the first position after the force is removed; and a lock release mechanism configured to actuate the releasable lock to release the sliding sleeve valve to move into the third position.
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons
E21B 43/267 - Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
29.
SLIDING SLEEVE SUB AND METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
A sliding sleeve sub including: a flexible ball seat configured to respond to a parameter of an actuating device moving through the ball seat to either (a) maintain the seat as flexible to allow the actuating device to be pushed through the ball seat without actuating the tool or (b) to reconfigure the seat to an inflexible condition to stop the actuating device from passing through the ball seat, to thereby allow actuation of the sliding sleeve sub.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
A method for wellbore treatment includes running a liner into a wellbore, the liner including a wall, an inner bore defined by the wall, a first port through the wall, a second port though the wall spaced axially from the first port, a first removable closure for the first port and a second removable closure for the second port; positioning the liner in an open hole section of the wellbore to create an annulus between the liner and a portion of the wellbore wall and with the second port downhole of the first port; inserting a treatment string assembly into the liner, the treatment string assembly including a tubing string and an annular seal about the tubing string and being insertable into the inner bore of the liner; setting the annular seal to create a seal between the tubing string and the liner downhole of the second port; and while the first port is closed to fluid flow therethrough, pumping wellbore treatment fluid into an annular area between the tubing string and the liner such that the fluid passes through the second port and into the annulus to treat the open hole section of the wellbore adjacent the second port. The treatment string assembly may further include a port-opening tool and a fluid communication port permitting fluid communication between the tubing string outer surface and a fluid conduit through the tubing string adjacent an upper side of the annular seal.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Oil and gas well electronic tools, namely, sensors and monitoring devices for observing the fracturing and operations of oil and gas wells for oil and gas recovery
A stage tool for wellbore annular cementing includes: a main body including a tubular wall with an outer surface and a longitudinal bore extending from a top end to a bottom end; a fluid port through the tubular wall providing fluidic access between the longitudinal bore and the outer surface; a valve for controlling flow through the fluid port between the outer surface and the inner bore; a backup sleeve to act as a secondary closure for the fluid port; and an automatic mechanism for automatically closing the backup sleeve without running in a string to move the backup sleeve.
A wellbore assembly including an actuation dart for actuating a target tool in tubing string. The dart is activatable downhole, such that it can be moved past tools similar to the target tool without actuating them. The target tool may include a release mechanism that releases the actuation dart after being actuate by it. Such a target tool may be useful with a second tool that retains the actuation dart against further movement down the tubing string.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 23/00 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
[ Oil and gas well completion services, namely, providing cementing services ] [ Oil and gas well completion services, namely, providing perforating services, fracturing services, sand and water control services and well stimulation services ] Oil and gas well completion tools, namely, downhole tools [ in the nature of float collars, toe circulation subs, hydraulically activated toe sleeves, ball activated nozzles, ball activated valves, sliding sleeves, closable sleeves, screens, inflow control devices, packers, anchors, anchor packers, debris subs, locator subs, liner hanger packers, and stage collars, bridge plugs, service tools, namely, ] actuation balls, darts, plugs, [ straddle tools, isolation tools, shifting tools, setting tools, mills, reamers, seal assemblies; open hole packers; fracturing systems, namely, packers, ports and sliding sleeves used to fracture formation rock; acidizing systems, namely, packers ports and sliding sleeves used to place fluids on formation rock; specialty service tools, namely, packers, straddle packers, fracports, ball seats, balls, casing, tubing, circulating valves, centralizers, wireline retrievable ball seats, hydraulic anchors, open hole anchors; Downhole completion systems, comprised of packers, service tools, namely, actuation balls, darts, plugs, straddle tools, isolation tools, shifting tools, setting tools, mills, reamers, seal assemblies, disconnects for releasing downhole tools and tubing, polish bore receptacles, on-off tools disconnects for releasing downhole tools and tubing, centralizers, circulation subs, cement retainers and bridge plugs; and packers, fracports, ball seats, balls, casing, tubing, circulating valves, centralizers, wireline retrievable ball seats, hydraulic anchors, open hole anchors, ] all of the aforementioned for use with oil and gas extraction [; flow control equipment, namely, flow couplings, tubing drains, pump out plugs, tubing anchors; oil and gas well completion accessories, namely, blast joints, tubing pup joints, sliding sleeves, profile landing nipples, combo sleeves ] [ Intelligent completion systems consisting of packers, sliding sleeves and electronic downhole sensors used to isolate, monitor and control a well for increased productivity ]
A stage tool for wellbore annular cementing may be opened for cementing by hydraulic actuation of a sliding sleeve valve from over a fluid port. After sufficient cement has been introduced, the stage tool fluid port can be closed by compressing two telescopically arranged parts of its tubular body to further overlap each other and overlie the fluid port. This permits the stage tool to be closed without employing a plug.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/00 - Valve arrangements for boreholes or wells
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
37.
Sliding sleeve sub and method and apparatus for wellbore fluid treatment
A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in in a pressure tight condition and later is needed to be in an open-port condition.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A wellbore packer for setting one or more packing elements in a borehole having an open hole section. The wellbore packer comprises a port-less mandrel configured with one or more packing elements and one or more setting mechanisms. The setting mechanism is responsive to a driving force and configured to set the packing elements in the borehole, wherein the driving force is not tubing string pressure. Where packers are set by annular pressure, a method for setting a plurality of such packers may include sequentially operating the packers. A mechanism may be provided for the packers to allow sequential operation thereof.
A wellbore plug includes a first part, a second part and a rotary friction welded joint connecting the first part and the second part to form the wellbore plug. A method includes fusing the first part to the second part by rotating the first part relative to the second part while applying an upsetting force to generate friction between the first part and the second part to generate a work piece; and finishing the work piece to form the wellbore plug,
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
A method for monitoring well operations comprises sensing oscillations occurring in the well during a well operation and generating a signal indicative of the oscillations. The signal is processed into sensed data indicative of the oscillations sensed in the well, and the sensed data is then compared with reference data associated with previously detected well operations, to identify the well operation that generated the sensed oscillations. The system that performs the well monitoring, comprises one or more transducers configured to sense the oscillations, and a processing system in communication with the transducer which identifies the well operation and the device that caused the oscillations, based on comparisons of data indicative of the oscillations, with reference data associated with previously detected well operations.
E21B 47/095 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes by detecting acoustic anomalies, e.g. using mud-pressure pulses
E21B 47/107 - Locating fluid leaks, intrusions or movements using acoustic means
E21B 47/09 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes
E21B 34/00 - Valve arrangements for boreholes or wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 47/10 - Locating fluid leaks, intrusions or movements
45.
METHODS, STRINGS AND TOOLS TO ENHANCE WELLBORE FRACTURING
A tubing string external structure forms a pathway in a cemented annulus that extends from a fluid treatment port axially away from the port and along a length of the tubing string. Wellbore treatment fluids can be injected through the tubing string and through the pathway to contact the wellbore wall along a length greater than the axial length of the port.
A wellbore tool that can withstand pressure tests without becoming hydraulically actuated. The wellbore tool includes a tubular housing including an inner bore; a tool mechanism responsive to fluid pressure; and a pressure isolator for the tool mechanism moveable between an active and an inactive position.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
E21B 33/10 - Sealing or packing boreholes or wells in the borehole
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A toe circulation sub for a wellbore liner, the toe circulation sub comprising: a body including a connection for connecting the body to a wellbore liner to define an inner facing portion open to an inner diameter of the liner and an outer facing portion open to an outer surface of the liner; a bore through the body from the inner facing portion to the outer facing portion; and, a ball seat in the bore formed to stop and seal with a ball to plug flow through the bore to close the toe circulation sub. The toe circulation sub is useful for methods and may be installed in a wellbore liner.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A downhole tool and method of operation thereof is provided. The downhole tool may be configured to permit fluid communication between a combined flowbore of the casing string and the downhole tool and the subterranean formation or wellbore, or both, after a pressure test has been completed, a second threshold pressure is reached or applied, and a third threshold pressure has been applied to the downhole tool.
A wellbore tubing string assembly comprises: a string including an inner bore having an inner diameter and a plurality of tools installed along the string including a first tool and a second tool axially offset from the first tool along the string; the first tool includes: a first sleeve in the inner bore having an inner surface, the inner surface defining a first restriction diameter smaller than the inner diameter; a first sensor mechanism in communication with the first sleeve and responsive to an application of force against the first sleeve; the second tool includes; a second sleeve in the inner bore having an inner wall surface, the inner wall surface defining a second restriction diameter smaller than the inner diameter; a second sensor mechanism in communication with the second sleeve and responsive to an application of force against the second sleeve; and a sealing device having a diameter greater than the second restriction diameter and being deformable to be pushable through the second restriction diameter to apply a force against the second sleeve.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A stage tool for cementing a wellbore annulus, comprising: a main body including a tubular wall with an outer surface and an inner bore extending from a top end to a bottom end; a cementing port through the tubular wall providing fluidic access between the longitudinal bore and the outer surface; a valve for controlling flow through the cementing port between the outer surface and the inner bore; and a plug sealing a circulation path between the valve and the outer surface, the plug being expellable by pressure applied from the inner bore. The stage tool may be run in with the plug isolating annular pressure from the valve, After sufficient cement has been introduced to the annulus, the stage tool fluid port can be closed to hold the cement in the annulus.
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 33/16 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement chargePlugs therefor
54.
PRESSURE SENSITIVE COVER FOR A FLUID PORT IN A DOWNHOLE TOOL
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
A wellbore tool, a wellbore fluid treatment string and a method with an indexing mechanism. The indexing mechanism can be shifted through one or more inactive positions before finally shifting into an active condition. The indexing mechanism is particularly useful with a plug that lands in a seat to impart an axially directed force on the mechanism before passing through the seat.
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A wellbore tool, a wellbore fluid treatment string and a method with an indexing mechanism. The indexing mechanism can be shifted through one or more inactive positions before finally shifting into an active condition. The indexing mechanism is particularly useful with a plug that lands in a seat to impart an axially directed force on the mechanism before passing through the seat.
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
57.
Kobe sub, wellbore tubing string apparatus and method
To address concerns of kobe plug cap portions being inadvertently removed, for example, by abutment with strings or tools passing thereby, a shielding structure may be employed to protect the cap against inadvertent removal. The port opening tool useful with the kobe plug is selected to overcome the shielding structure to open the kobe plug. To address concerns of a portion of the kobe plug becoming loose in the tubing string inner bore, a capturing mechanism may be provided that captures the cap portion after it is removed to open the kobe plug and prevented the cap portion from becoming loose in the inner bore of the tubing string.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/06 - Valve arrangements for boreholes or wells in wells
An apparatus and method for activating a device or equipment located inside a wellbore or a tube string inside a wellbore. According to an embodiment, the apparatus comprises a free running or untethered dart and downhole equipment coupled to the tube string. The dart is configured to transmit an electromagnetic signal comprising a magnetic field signal, and the downhole equipment is configured to detect to the electromagnetic signal when the dart is in proximity. The downhole equipment generates a trigger signal or a trigger output for setting the device in response to reception of the electromagnetic signal.
E21B 41/00 - Equipment or details not covered by groups
E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
A method and system for monitoring well operations are provided. Acceleration data is generated from vibration signals collected from a well and the data is processed to indicate a well condition such as the actuation of a device and the movement and location of an actuation device.
E21B 47/008 - Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
E21B 47/18 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid
A stage tool and a method for stage cementing a wellbore annulus. The method includes: running into a wellbore toward bottom hole with a tubing string to a position in the wellbore; setting the tubing string in the wellbore to create the wellbore annulus between the tubing string and a wall of the wellbore; opening a cementing port through a side pocket structure positioned alongside the tubing string; pumping cement through the cementing port; and closing the cementing port to hold the cement in the annulus.
E21B 33/16 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement chargePlugs therefor
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
A toe circulation sub for a wellbore liner, the toe circulation sub comprising: a body including a connection for connecting the body to a wellbore liner to define an inner facing portion open to an inner diameter of the liner and an outer facing portion open to an outer surface of the liner; a bore through the body from the inner facing portion to the outer facing portion; and, a ball seat in the bore formed to stop and seal with a ball to plug flow through the bore to close the toe circulation sub. The toe circulation sub is useful for methods and may be installed in a wellbore liner.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
62.
Actuation dart for wellbore operations, wellbore treatment apparatus and method
An actuation dart for actuating a target tool in a tubing string, the actuation dart includes: a body conveyable through the tubing string to reach the target tool; a control module configured to respond to contact with at least one downhole tool in the tubing string to locate the target tool; and an actuation mechanism for actuating the target tool when it is located.
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
An apparatus for fluid treatment of a borehole, the apparatus allowing initial outflow injection of fluids into a wellbore in which it is installed and then is actuable to allow fluid inflow control. The apparatus includes: a tubular body, a first port and a second port opened through the wall of the tubular body, the second port having a fluid inflow controller positioned to control the flow of fluid into the tubular body through the port, a sliding sleeve valve in the tubular body moveable from (i) a first position closing the first port and the second port to (ii) a second position closing the second port and permitting fluid flow through the first port and to (iii) a third position closing the first port and permitting fluid flow through the second port; a sleeve actuator for actuating the sliding sleeve valve to move from the first position to the second position in response to a force applied thereto; a releasable lock for locking the sliding sleeve valve in the first position and selected to maintain the sliding sleeve valve in the first position after the force is removed; and a lock release mechanism configured to actuate the releasable lock to release the sliding sleeve valve to move into the third position.
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
E21B 34/00 - Valve arrangements for boreholes or wells
A selectively openable inflow control sub includes a sliding sleeve valve slidable within an inner bore of the sub between a closed-port position, closing the inflow port, and an open-port position, opening the inflow port to fluid flow therethrough, the sliding sleeve valve is axially moveable from the closed-port position to the open-port position by pushing the sleeve with a mill string.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
F16K 3/24 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
F16K 31/46 - Mechanical actuating means for remote operation
An actuation ball for a downhole tool, the actuation ball includes a ball body having an outer surface defining a seating surface with a substantially circular shape in section encircling an axis of the actuation ball; and a flexible protrusion attached to the ball body and extending substantially coaxially relative to the seating surface. Another actuation ball for a downhole tool, the actuation ball includes a body having an outer surface defining a seating surface, the body having a specific gravity less than 2.6.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A wellbore tubing string assembly comprises: a string including an inner bore having an inner diameter and a plurality of tools installed along the string including a first tool and a second tool axially offset from the first tool along the string; the first tool includes: a first sleeve in the inner bore having an inner surface, the inner surface defining a first restriction diameter smaller than the inner diameter; a first sensor mechanism in communication with the first sleeve and responsive to an application of force against the first sleeve; the second tool includes; a second sleeve in the inner bore having an inner wall surface, the inner wall surface defining a second restriction diameter smaller than the inner diameter; a second sensor mechanism in communication with the second sleeve and responsive to an application of force against the second sleeve; and a sealing device having a diameter greater than the second restriction diameter and being deformable to be pushable through the second restriction diameter to apply a force against the second sleeve.
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
An apparatus for fluid treatment of a borehole includes: a tubular body having a long axis and an upper end, a first port extending through the wall of the tubular body, a second port extending through the wall of the tubular body, the second port having a fluid inflow control mechanism positioned to control the flow of fluid into the tubular body through the port, the first port being configurable from an open position to a closed position; and a controller to actuate the first port into the closed position, a set time after the first port is placed into the open position.
A wellbore tool, a wellbore fluid treatment string and a method with an indexing mechanism including a crown ratchet sleeve. The indexing mechanism can be shifted through one or more inactive positions before finally shifting into an active condition. The indexing mechanism is particularly useful with a plug that lands in a seat to impart an axially directed force on the mechanism before passing through the seat.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/16 - Control means therefor being outside the borehole
69.
KOBE SUB WITH INFLOW CONTROL, WELLBORE TUBING STRING AND METHOD
A kobe sub includes a kobe installed in a port of the sub, the kobe includes a cap portion accessible in the inner bore, a base mounted in the port and connected to the cap portion, a channel extending through the base and closed by the cap portion; and an inflow controller positioned to control fluid flowing through the channel toward the inner bore when the cap portion is opened; and a port opening tool for opening the cap portion. The kobe may be employed with a frac port.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
A wellbore assembly for fluid treatment of a well includes: a tubing string including a tubular wall including an outer surface and an inner wall surface defining an inner diameter, an shift gap in the inner wall surface, the shift gap having a diameter greater than the inner diameter, a fluid port extending through the well providing fluid access between the inner diameter and the outer surface, the fluid port positioned in the shift gap, a sliding sleeve valve slidable in the shift gap between a position closing the fluid port and an open position wherein the fluid port is open to fluid flow therethrough between the inner diameter and the outer surface, the sliding sleeve valve in the open position creating a shift gap in the shift gap in which the fluid port is located, the shift gap having an axial length; and a tool for locating the fluid port in the tubing string, the tool including: a body including an upper end, a lower end and an outer surface extending therebetween defining an outer diameter, a locking protrusion encircling a circumference of the body, at least one of the locking protrusion having a length measured along the tool's long axis, the length being selected to fit into the shift gap.
E21B 23/02 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
E21B 23/03 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
A stage tool for reverse annular cementing a wellbore, comprising: a main body including a tubular wall with an outer surface and a longitudinal bore extending from a top end to a bottom end; a fluid port through the tubular wall providing fluidic access between the longitudinal bore and the outer surface; and a valve for controlling flow through the fluid port between the outer surface and the inner bore, the valve including a closure for the fluid port and a check valve for permitting one way flow through the fluid port in a direction from the outer surface to the inner bore, the check valve being normally inactive and only acting on fluid flows through the fluid port when activated. The stage tool may be run in closed and opened for cementing by hydraulic actuation of the valve. After sufficient cement has been introduced to the annulus, the stage tool fluid port can be closed to hold the cement in the annulus.
A method for wellbore treatment includes running a liner into a wellbore, the liner including a wall, an inner bore defined by the wall, a first port through the wall, a second port though the wall spaced axially from the first port, a first removable closure for the first port and a second removable closure for the second port; positioning the liner in an open hole section of the wellbore to create an annulus between the liner and a portion of the wellbore wall and with the second port downhole of the first port; inserting a treatment string assembly into the liner, the treatment string assembly including a tubing string and an annular seal about the tubing string and being insertable into the inner bore of the liner; setting the annular seal to create a seal between the tubing string and the liner downhole of the second port; and while the first port is closed to fluid flow therethrough, pumping wellbore treatment fluid into an annular area between the tubing string and the liner such that the fluid passes through the second port and into the annulus to treat the open hole section of the wellbore adjacent the second port. The treatment string assembly may further include a port-opening tool and a fluid communication port permitting fluid communication between the tubing string outer surface and a fluid conduit through the tubing string adjacent an upper side of the annular seal.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
A sliding sleeve valve for wellbore operations includes: a tubular body including a tubular wall including an outer surface and an inner surface defining an inner bore; a fluid port extending through the tubular wall and providing fluidic communication between the outer surface and the inner bore; a sliding sleeve in the inner bore slidably moveable between a port closed position and a port open position, the sliding sleeve including a ball seat on which a plug is landed to move the sleeve from the port closed position to the port open position; an initial sleeve holding mechanism for holding the sliding sleeve in the port closed position, the initial sleeve holding mechanism selected to be overcome by landing a plug on the ball seat to move the sliding sleeve; and a second sleeve holding mechanism for holding the sliding sleeve in the port closed position after the sliding sleeve is reclosed from the port open position to the port closed position, the second sleeve holding mechanism selected to be overcome by landing a plug on the ball seat to move the sliding sleeve.
F16K 31/46 - Mechanical actuating means for remote operation
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
F16K 3/26 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
F16K 3/30 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing Details
A stage tool for wellbore annular cementing may be opened for cementing by hydraulic actuation of a sliding sleeve valve from over a fluid port. After sufficient cement has been introduced, the stage tool fluid port can be closed by compressing two telescopically arranged parts of its tubular body to further overlap each other and overlie the fluid port. This permits the stage tool to be closed without employing a plug.
A wellbore packer for setting one or more packing elements in a borehole having an open hole section. The wellbore packer comprises a port-less mandrel configured with one or more packing elements and one or more setting mechanisms. The setting mechanism is responsive to a to a driving force and configured to set the packing elements in the borehole, wherein the driving force is not tubing string pressure.
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
E21B 23/06 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
76.
KOBE SUB, WELLBORE TUBING STRING APPARATUS AND METHOD
To address concerns of kobe plug cap portions being inadvertently removed, for example, by abutment with strings or tools passing thereby, a shielding structure may be employed to protect the cap against inadvertent removal. The port opening tool useful with the kobe plug is selected to overcome the shielding structure to open the kobe plug. To address concerns of a portion of the kobe plug becoming loose in the tubing string inner bore, a capturing mechanism may be provided that captures the cap portion after it is removed to open the kobe plug and prevented the cap portion from becoming loose in the inner bore of the tubing string.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 23/00 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
77.
WELLBORE PACKER BACK-UP RING ASSEMBLY, PACKER AND METHOD
A back-up ring assembly for a wellbore packer that acts as an extrusion limiter for a packing element and engages the wellbore bore, also operating as a slip to anchor the packer in place. A wellbore packer includes a single structure that acts both to back up the extrusion of the packing element and to engage the wellbore wall. For example, the structure is a back-up ring that includes a gripping structure on its outer wall-contacting surface. The wellbore packer includes: a mandrel, a deformable packing element surrounding the mandrel and adapted to be radially expanded out from the mandrel, the deformable packing element including an end; a back-up ring surrounding the mandrel and positioned adjacent the end of the deformable packing element, the back-up ring having an inner facing annular surface and an outer facing annular surface defining an outer diameter across the back-up ring, the back-up ring being expandable to increase the outer diameter to expand out from the mandrel alongside the deformable packing element and the outer facing annular surface including a gripping structure for biting into a constraining surface in a well.
A wellbore treatment apparatus includes: a tubing string including a wall defining an inner diameter and a port extending through the wall, the port closed by a closure including a plug- actuated sliding sleeve; and a port opening apparatus including a wireline deployable through the inner diameter of the tubing string to extend to a position adjacent the plug-actuated sliding sleeve and an actuator plug carried on and axially slideable along the wireline, the actuator plug sized to land in the plug-actuated sliding sleeve to actuate the plug-actuated sliding sleeve, while remaining on the wireline. The apparatus can be employed in a method by running the tubing string into a well, placing the slickline in the string and running the actuator plug along the wireline to land on and actuate a sleeve in the string.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 23/14 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
An actuation dart for actuating a target tool in a tubing string, the actuation dart includes: a body conveyable through the tubing string to reach the target tool; a control module configured to respond to contact with at least one downhole tool in the tubing string to locate the target tool; and an actuation mechanism for actuating the target tool when it is located.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
An apparatus for fluid treatment of a borehole, the apparatus allowing initial outflow injection of fluids into a wellbore in which it is installed and then is actuable to allow fluid inflow control. The apparatus includes: a tubular body, a first port and a second port opened through the wall of the tubular body, the second port having a fluid inflow controller positioned to control the flow of fluid into the tubular body through the port, a sliding sleeve valve in the tubular body moveable from (i) a first position closing the first port and the second port to (ii) a second position closing the second port and permitting fluid flow through the first port and to (iii) a third position closing the first port and permitting fluid flow through the second port; a sleeve actuator for actuating the sliding sleeve valve to move from the first position to the second position in response to a force applied thereto; a releasable lock for locking the sliding sleeve valve in the first position and selected to maintain the sliding sleeve valve in the first position after the force is removed; and a lock release mechanism configured to actuate the releasable lock to release the sliding sleeve valve to move into the third position.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
A wellbore tubular port closure system includes a mechanism to delay the opening of the port after the port closure has been actuated to open. A method and apparatus incorporate the wellbore tubular port closure system with a port opening delay mechanism configured to act after actuation of the pressure responsive mechanism to delay full movement of the port-closure to the port-open position until after a selected time has lapsed.
A wellbore fluid treatment apparatus includes a tubing string including a first port with a first closure disposed thereover to close the first port to fluid flow and a second port spaced axially uphole from the first port and having a second closure disposed thereover to close the second port to fluid flow; and an actuator tool configured to move through the tubing string and (i) to set a seal in the tubing string downhole of the first port; (ii) to actuate the first closure to open the first port; and (iii) to actuate the second closure to open the second port. A method for treating a well may employ the tool.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A system has been invented for placement of a liner in a lateral wellbore, access to which is provided through a window having a V-shaped downhole end. The system includes a running tool including an upper end through which the running tool is manipulated from surface, a lower end, a key positioned between the upper end and the lower end, the key protruding from the running tool for locating the V-shaped downhole end of the window and a liner-engaging portion on the downhole end for releasably securing the wellbore liner to the running tool, the liner-engaging portion configured to secure the liner adjacent the key with the key protruding above the liner and the liner extending from the lower end. The invention also provides methods for placing a wellbore liner in a lateral wellbore extending from a main wellbore.
A tubing string assembly is disclosed for fluid treatment of a wellbore The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off The tubing string can also be used where a ported tubing string is required to be run-m in a pressure tight condition and later is needed to be in an open-port condition A sliding sleeve in a tubular has a driver selected to be acted upon by an inner bore conveyed actuating device, the driver drives the generation of a ball stop on the sleeve.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/00 - Valve arrangements for boreholes or wells
A method and apparatus for wellbore control include a downhole facing ball stop and sealing area that can stop and seal with an actuator ball migrating toward surface with wellbore returns or production. The downhole facing ball stop operates with the returning actuator ball to create a seal against any returns or production migrating toward surface such that well control is provided until the ball is removed from the sealing area or a bypass is opened around the seal.
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A method for wellbore treatment includes running a liner into a wellbore, the liner including a wall, an inner bore defined by the wall, a first port through the wall, a second port though the wall spaced axially from the first port, a first removable closure for the first port and a second removable closure for the second port; positioning the liner in an open hole section of the wellbore to create an annulus between the liner and a portion of the wellbore wall and with the second port downhole of the first port; inserting a treatment string assembly into the liner, the treatment string assembly including a tubing string and an annular seal about the tubing string and being insertable into the inner bore of the liner; setting the annular seal to create a seal between the tubing string and the liner downhole of the second port; and while the first port is closed to fluid flow therethrough, pumping wellbore treatment fluid into an annular area between the tubing string and the liner such that the fluid passes through the second port and into the annulus to treat the open hole section of the wellbore adjacent the second port. The treatment string assembly may further include a port-opening tool and a fluid communication port permitting fluid communication between the tubing string outer surface and a fluid conduit through the tubing string adjacent an upper side of the annular seal.
A method for opening a port through the wall of a ported sub including: providing a hydraulically actuable valve to cover the port, the valve being actuable to move away from a position covering the port to thereby open the port; providing a removable pressure isolator that seals tubing pressure from accessing the valve; removing the pressure isolator from blocking access to the valve; increasing the pressure within the sub to move the valve towards a low pressure side, while the port remains closed by the valve; thereafter, reducing pressure within the sub; driving the valve to move it away from a position covering the port; and removing a portion of the pressure isolator to provide further fluid access through the ported sub.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
A stage tool for wellbore annular cementing includes: a main body including a tubular wall with an outer surface and a longitudinal bore extending from a top end to a bottom end, the tubular wall including a first tubular and a second tubular telescopically secured relative to and axially slidable along the first tubular; a fluid port through the tubular wall and, when opened, providing fluidic access between the longitudinal bore and the outer surface, the fluid port being openable with the first tubular and the second tubular are a first overlapping position and being closed by axially sliding the first tubular and the second tubular into a further overlapping position relative to the first overlapping position; and a sliding sleeve valve positioned over the port and drivable by fluid pressure from a position sealing against fluid flow out of the tool from the fluid port and a position retracted from the fluid port to permit fluid flow out of the tool from the fluid port. The stage tool may be run in closed and opened for cementing by hydraulic actuation of the sliding sleeve valve. After sufficient cement has been introduced, the stage tool fluid port can be closed by compressing the first tubular and the second tubular to further overlap and overlie the fluid port.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
89.
PLUG RETAINER AND METHOD FOR WELLBORE FLUID TREATMENT
A method for fluid treatment of a borehole including a main wellbore, a first wellbore leg extending from the main wellbore and a second wellbore leg extending from the main wellbore, the method includes: running a wellbore tubing string apparatus into the first wellbore leg; conveying a plug into the wellbore tubing string apparatus to actuate a plug-actuated sleeve in the wellbore tubing string apparatus to open a port through the wall of the wellbore tubing string apparatus covered by the sleeve; employing a plug retainer to retain the plug in the tubing string against passing outwardly from the tubing string apparatus; allowing fluids to flow toward surface outwardly from the tubing string apparatus; and performing operations in the second wellbore leg.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A tubing string assembly is disclosed for fluid treatment of a wellbore The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off The tubing string can also be used where a ported tubing string is required to be run-m in a pressure tight condition and later is needed to be in an open-port condition A sliding sleeve in a tubular has a driver selected to be acted upon by an inner bore conveyed actuating device, the driver drives the generation of a ball stop on the sleeve.
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A method for isolating a perforated interval of a well, the well including a casing liner having a wall with a plurality of perforations therethrough forming the perforated interval, the method comprising: providing a tool including a tubular body including an inner diameter and an outer surface, a first open end and a second open end, the first and second open ends providing access to the inner diameter; and a sealing element to isolate a mid region of the outer surface from the first open end and the second open end; positioning the tool in the well with the tubular first open end adjacent and above an uppermost perforation of the perforated interval and the second open end adjacent and below a lowermost perforation of the perforated interval; and installing the tool in the well with the sealing element sealing between the tubular body and the casing wall above the uppermost perforation of the perforated interval and below the lowermost perforation of the perforated interval to isolate fluid flow between the perforations and the inner diameter.
A cementing sub for wellbore annulus cementing that allows certain regions of the wellbore annulus to be cemented while other regions are left open for perforating, activation or controllable ported access. The cementing sub may include a tubular body including a first end, an opposite end and a wall defined between an inner bore extending from the first end to the opposite end and an outer surface; a port through the wall of the tubular body providing communication between the inner bore and the outer surface, the port including an openable closure; a conduit along the wall of the tubular extending from an inlet adjacent the first end and an outlet adjacent the opposite end, the inlet and outlet opening to the outer surface and being isolated from communication with the inner bore; a first annular packer encircling the tubular body and positioned between the port and the inlet; and a second annular packer encircling the tubular body and positioned between the port and the outlet.
E21B 33/124 - Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
93.
DOWNHOLE SUB WITH HYDRAULICALLY ACTUABLE SLEEVE VALVE
A method for opening a port through the wall of a ported sub including: providing a sub with a port through its tubular side wall; providing a hydraulically actuable valve to cover the port, the valve being actuable to move away from a position covering the port to thereby open the port; increasing pressure within the sub to create a pressure differential across the valve to move the valve toward the low pressure side, while the port remains closed by the valve; thereafter, reducing pressure within the sub to reduce the pressure differential; and driving the valve to move it away from a position covering the port.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 33/126 - PackersPlugs with fluid-pressure-operated elastic cup or skirt
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
PACKERS, FRACPORTS AND FRACJETS FOR USE IN THE PLACEMENT OF FLUIDS INTO OR OUT OF THE WELL, TRAVELING SUBS FOR OPENING MULTIPLE PORES, BALL SEATS VALVES, WELLBORE CASING, TUBING, METAL OR CERAMIC BALLS FOR USE IN THE FLOW OF FLUIDS, CIRCULATING VALVES, CENTRALIZERS, OPEN HOLE ANCHORS, ALL USED IN OIL AND GAS WELL COMPLETIONS
