Connecting assembly and receptacle adapted to receive said connecting assembly for connecting two tubing sections, and method for installing and connecting two tubing sections in a wellbore
The invention relates to a connecting assembly to be plugged into a mating receptacle in a wellbore, comprising a first sleeve including a second sleeve and having a top connecting end and a bottom connecting end, characterized in that: —the first sleeve comprises the bottom end and has a top end opposite to said bottom connecting end, said bottom connecting end being provided with an end cap for preventing entrance of materials and capable of being opened; —said second sleeve comprises said top connecting end located outside of the first sleeve and has a bottom end opposed to said top connecting end; —said connecting assembly comprises a locking mechanism adapted to lock said second sleeve in a position relative to said first sleeve such that the bottom end of the second sleeve is inside said first sleeve, and —the dimensions of the first sleeve and second sleeve are adapted such that when said locking mechanism is unlocked, said second sleeve is allowed to move relative to said first sleeve to impinge and open said end cap.
E21B 17/046 - CouplingsJoints between rod and bit, or between rod and rod with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
E21B 17/04 - CouplingsJoints between rod and bit, or between rod and rod
In certain embodiments, a downhole swivel sub includes a first swivel part configured to connect to a first section of a workstring, and a second swivel part configured to connect to a second section of the workstring. The second swivel part is rotatable relative to the first swivel part. The downhole swivel sub also includes a locking sleeve rotationally coupled with the first swivel part and movable axially between a locking position wherein the first swivel part and the second swivel part are rotationally coupled and an unlocking position wherein the first swivel part is rotatable relative to the second swivel part. The locking sleeve includes at least two first rows of teeth disposed at a same radial position and separated axially on the locking sleeve. The at least two first rows of teeth are configured to engage and disengage with at least two second rows of teeth located on the second swivel part.
A cartridge assembly includes a roller arranged about a shaft and secured in an axial position relative to the shaft, characterized in that at least the radial load on the roller is carried by a polycrystalline diamond bearing arranged between the shaft and a bore surface.
A downhole tool 100 includes a housing 101 having a bore 102, a wall including a chamber 103 in which is arranged a piston 104, said chamber 103 including a first fluid passage 105 towards said bore 102 and a second fluid passage 106 towards the outside of the tool 100, said piston 104 being movable between an deactivated position and a activated position. Said first fluid passage 105 is closed and said second fluid passage 106 is open when said piston 104 is in an activated position or in a deactivated position, and said first fluid passage 105 is open and said second fluid passage 106 is closed when said piston 104 has to be moved to one of the said activated or deactivated positions.
The invention relates to a downhole tool (1) having a generally cylindrical body (2) comprising a rear end (3) adapted for connection to the bottom of a string or to a motor shaft, and terminated by a nose portion (5) comprising the front end (4) of the tool, the said body further comprising: - a passive area (6); - a front cutting area (7) undergauge relative to the said passive area and arranged between the said passive area and the said front end.
CONNECTING ASSEMBLY AND RECEPTACLE ADAPTED TO RECEIVE SAID CONNECTING ASSEMBLY FOR CONNECTING TWO TUBING SECTIONS, AND METHOD FOR INSTALLING AND CONNECTING TWO TUBING SECTIONS IN A WELLBORE
The invention relates to a connecting assembly to be plugged into a mating receptacle in a wellbore, comprising a first sleeve including a second sleeve and having a top connecting end and a bottom connecting end, characterized in that: - the first sleeve comprises the bottom end and has a top end opposite to said bottom connecting end, said bottom connecting end being provided with an end cap for preventing entrance of materials and capable of being opened; - said second sleeve comprises said top connecting end located outside of the first sleeve and has a bottom end opposed to said top connecting end; - said connecting assembly comprises a locking mechanism adapted to lock said second sleeve in a position relative to said first sleeve such that the bottom end of the second sleeve is inside said first sleeve, and - the dimensions of the first sleeve and second sleeve are adapted such that when said locking mechanism is unlocked, said second sleeve is allowed to move relative to said first sleeve to impinge and open said end cap.
A reaming tool includes a body having a longitudinal axis and an upper end opposite a lower end and a plurality of blades located on said body. Each blade includes a reaming surface having reaming inserts arranged on at least a portion of the reaming surface such that substantially equal load is applied on the reaming inserts in the longitudinal and circumferential directions, and wherein the reaming inserts comprise a truncated dome having a substantially flat top as an exposed contact area.
The present invention relates to a downhole swivel sub (100) for insertion in a string, the downhole swivel sub comprising : • - a first body (101) comprising a first end (103) and a second end (104); • - a second tubular body (102) enclosing the second end of the first body, the first body and the second body forming a bore (106); • - a coupling member (107) which, in a first position, engages the first body with the second body, and in a second position, disengages the second body from the first body; the said coupling member being fully enclosed in the second body and forming a chamber with the inner surface of the second body, said chamber being in fluidic communication with the external of the downhole swivel sub through a vent in the second body for allowing the movement of the coupling member from its first position towards its second position.
The present invention relates to a tool for selectively connecting or disconnecting components of a downhole workstring comprising a drive shaft (3) and a housing couplable to said drive shaft, and housing comprising first and second housing parts (21, 22) releasably connected to one another, transmission means such as a reduction gear mechanism (52-54) coupled to the drive shaft, the transmission means being arranged to selectively connect or disconnect the housing parts by rotating the drive shaft.
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
10.
A DOWNHOLE TOOL ASSEMBLY AND A METHOD FOR ASSEMBLING AND DISASSEMBLING IT
The present invention relates to a downhole tool assembly comprising : - a tool body (1),(101) comprising at least one pocket (4),(104) for insertion of a cartridge (5), (105) and; - at least one cartridge (5), (105); said cartridge (5), (105) being fastened in the pocket (4), (104) in at least two different locations by respective fastening elements (8), (9); (108), (109) to be screwed into said pocket (4), (104), characterized in that said cartridge comprises abutment means (62), (72); (162), (172); (14), (15); (114), (115) for constraining the movement of each fastening element (8), (9), (108), (109) in its axial direction and away relative to the tool body (1) (101), and in that the dimensions of said cartridge relative to the dimensions of said pocket are selected such that there is a clearance fit between said cartridge and said pocket, such that said cartridge (5), (105) is insertable into the pocket or removable from said pocket following a single direction, and gets blocked into the pocket when the said cartridge is tilted to an angle exceeding a predetermined angle relative to said single direction. In other aspects, the present invention relates to a method for inserting said cartridge into said pocket and to a method for removing said cartridge from said pocket.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 10/30 - Longitudinal axis roller reamers, e.g. reamer stabilisers
E21B 10/62 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
11.
DOWNHOLE TOOL PROVIDED WITH INSERTS AND METHOD FOR REMOVING THE INSERTS OF A DOWNHOLE TOOL
This invention relates to a downhole tool (100) package including a downhole tool comprising at least one pocket (106) for insertion of an insert (109) for reaming, cutting or stabilizing, each pocket being accessible from the external surface (104) of the tool body (101) and being associated with a channel (105) extending from said external surface (104) to the bottom of the pocket (106) and forming an opening (111) at the bottom of the pocket (106). The tool package preferably also comprises a pushing object (112) which can be introduced into said channel (105) and means for pushing this object (112) via the opening (111) against an insert (109) inserted in said pocket (106). The invention also relates to a method for removing an insert (109) from a pocket (106) in this tool, including the step of applying a removing force onto the insert (109) through the channel (105) and through the opening (111).
E21B 10/633 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable
The invention relates to a downhole swivel sub (100) destined to be included between two sections of a workstring, said swivel sub having a bore (126) extending there through and comprising : - a first swivel part (103) provided with a connection for a first section of the workstring; - a second swivel part (104) provided with a connection for a second section of the workstring, said second swivel part being rotatable relative to the said first swivel part; - a locking sleeve (117) rotationally coupled with the said first swivel part and movable axially between a locking position wherein the said first swivel part and the said second swivel part are rotationally coupled and an unlocking position wherein the said first swivel part is able to rotate relative to the said second swivel part; characterized in that the said locking sleeve comprises at least two first rows of teeth (116') disposed at the same radial position, separated axially on the said locking sleeve and arranged such as: - to engage with at least two second rows of teeth (116) located on the said second swivel part (104) when the said locking sleeve is in the locking position and; - to disengage from the said second rows of teeth (116) of the said second swivel part when the said locking sleeve is in the unlocking position.
A reaming tool includes a tool body having a longitudinal axis and an upper end opposite a lower end and at least one blade extending outwardly from the external surface of the tool body. The blade includes a rolling element defining the gauge of the reaming tool, and a blade surface arranged undergauge of the rolling element and comprising a cutting surface.
This invention relates to a downhole tool (101), comprising a housing (101), an actuating member (105) for activating or deactivating a tool member (103) and a circuit (104, 106) for the circulation of a fluid inside said housing, the actuating member (105) comprising a first (110a) and a second pressure surface (111a) exposed to a different internal pressure of the circulating fluid, these internal pressures acting in opposite directions, and a third (110b) and a fourth pressure surface (111b) exposed to an external pressure of fluid projected outside the housing (101), the external pressure also acting on the actuating member in opposite directions, in order to exert a fluid force on the actuating member (105) moving it from a first position towards a second position in order to activate or deactivate said tool member (103). Actuation of the actuating member (105) is more or less independent of the differential pressure between the inside and the outside of the downhole tool's housing.
E21B 41/00 - Equipment or details not covered by groups
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
15.
DOWNHOLE TOOL AND METHOD FOR OPERATING SUCH A DOWNHOLE TOOL
This invention relates to a downhole tool (100) comprising a housing (101), an actuating member (105) which is movable relative to the housing, and at least one tool member (103) which is movable between a retracted position and a radially extended position, wherein the movement of said actuating member (105) induces the movement of said tool member. The tool comprises means (107, 125b) for preventing relative movement of the actuating member (105) and the tool member (103), preferably a profiled cam surface (107) cooperating with a contact surface (125b) of the tool member (103), such that the tool member (103) is locked in the retracted position and in the extended position when the actuating member (105) is in a first position and in a second position respectively.
E21B 41/00 - Equipment or details not covered by groups
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
16.
DOWNHOLE TOOL AND METHOD FOR OPERATING SUCH A DOWNHOLE TOOL
This invention relates to a downhole tool (101), comprising a housing (101), at least one tool member (103) which can be activated and deactivated, an actuating member (105) which is movable between a first position and a second position in order to activate or deactivate said tool member (103), a circuit (104, 106) for the circulation of a fluid inside said housing arranged to apply a fluid pressure onto the actuating member (105) in order to move it from the first to the second position, a channel (118) connecting the circuit (104, 106) to a nozzle (119) for projecting a fluid from said circuit (104, 106) towards the outside of the housing, and a valve assembly (120) for closing or opening the path to said channel (118), said valve assembly (120) being operable by said actuating member (105).
E21B 41/00 - Equipment or details not covered by groups
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
This invention relates to a drill bit (1) for drilling a borehole in earth formation, comprising a bit body (2) having a central axis (3), a bit face (4) including a plurality of blades (6) with a plurality of cutter elements (7), (8) having a substantially planar cutting face (9) and a cutting tip for cutting the formation, wherein said cutter elements (7), (8) comprise at least one rounded cutter element (7) having a rounded cutting tip (10), and at least one pointed cutter element (8) having a pointed cutting tip (11). Preferably said substantially planar cutting surface (9) is mounted on a substrate (12) and is a polycrystalline diamond table or a cutting layer made of superabrasive materials including thermally stable diamond or cubic boron nitride. The invention also relates to the use of such a drill bit for drilling a plastic shale formation.
E21B 10/43 - Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
The invention relates to a swivel sub for a string to be lowered into a wellbore and a method of operation in a wellbore, wherein such swivel sub is used and comprises: - a first end provided with connection means for connecting a bottom section of a string; - a second end provided with connection means for connecting an upper section of the string; - a first member, including the first end and a sleeve portion opposed to the first end; - a second member including the second end and comprising a section opposed to the second end and partially located within the sleeve portion; the first member and the second member being arranged to rotate relative to each other.
The invention relates to as downhole device (100), comprising a housing configured for enclosing electronics (12), preferably measurement and logging electronics, for use in a downhole tool, said housing comprising: • - a housing sleeve (1) having a longitudinal bore therein, said longitudinal extending between a first end (10) and a second end 6 of said housing sleeve (1); • - a chassis (2) dimensioned to be inserted into said longitudinal bore, said chassis (2) being configured to maintain said electronics (12) in a fixed position relative to said chassis (2), • - a first cap (4) for sealing said first end; and • - a second cap (3) for sealing said second end;
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
20.
DOWNHOLE ASSEMBLY AND METHOD FOR REDUCING DRAG AND FRICTION ON A TUBULAR RUN IN A WELLBORE
An assembly (100) to be positioned on a tubular (200), said assembly comprising a first abutment (101), a second abutment (102), a body (103) to be positioned on said tubular such that said body is free to travel relative to said tubular and is limited by said abutments, characterized in that said body and at least an abutment have a shape (106, 106') such that upon rotation of said tubular, said body is periodically urged to move with an axial component relative to said tubular.
The invention relates to a swivel sub for a string to be lowered into a wellbore and a method of operation in a wellbore, wherein such swivel sub is used and comprises: - a first end provided with connection means for connecting a bottom section of a string; - a second end provided with connection means for connecting an upper section of the string; - a first member, including the first end and a sleeve portion opposed to the first end; - a second member including the second end and comprising a section opposed to the second end and partially located within the sleeve portion; the first member and the second member being arranged to rotate relative to each other.
The invention concerns a seal assembly (1) for sealing between a fixed member (10) and a rotatable member (3) adapted for rotating around an axis in relation to said fixed member. The seal assembly comprises a first ring member (4) adapted for being fitted in or on said fixed member circumferentially around said axis and having a first surface (34); a second ring member (6) adapted for being fitted circumferentially in or on said rotatable member and having a second surface (36) facing said first surface along a length; and a third ring member (7) between said second and said first surface, the distance between said second surface and said first surface being larger at the middle of said length and becoming smaller towards the extremities thereof.
A downhole tool for bidirectional reaming of a wellbore with a tubular body with a central cutting section between a first end segment and a second end segment, wherein the central cutting section has a plurality of helical blades separated by flute sections, and wherein the helical blades each have at least two spiral angled sections connected together, polydiamond cutter nodes, high strength carbide cutting nodes, tungsten carbide hardfacing coating or combinations thereof on the helical blades, and wherein the outer diameter of the central cutting section is larger than the outer diameter of each of the end segments.
The present invention relates to a tool for selectively connecting or disconnecting components of a downhole workstring comprising a drive shaft (3) and a housing couplable to said drive shaft, said housing comprising first and second housing parts (21, 22) releasably connected to one another, transmission means such as a reduction gear mechanism (52-54) coupled to the drive shaft, the transmission means being arranged to selectively connect or disconnect the housing parts by rotating the drive shaft.
The assembly comprise a bent sub (1411), and optionally a swivel (1480). The bend angle a of the bent sub in relation to the central axis of the assembly can be adjusted by rotating lower bend member (1431) relative to upper bend member (1430), which is non-rotatably attached to downhole motor (1460), using harmonic drive (1413) arranged between lower and upper bend members. In order to adjust the rotational orientation of the bent sub (1411), a swivel (1480) is provided having upper and lower swivel members (1432, 1433). Upper swivel member can be rotated relative to lower member, which is non-rotatably attached to the downhole motor, using a second harmonic drive (1423) arranged between lower and upper swivel members.
The present invention relates to a tool for selectively connecting or disconnecting components of a downhole workstring comprising a drive shaft (3) and a housing couplable to said drive shaft, said housing comprising first and second housing parts (21, 22) releasably connected to one another, transmission means such as a reduction gear mechanism (52-54) coupled to the drive shaft, the transmission means being arranged to selectively connect or disconnect the housing parts by rotating the drive shaft.
A downhole dual cutting reamer for bidirectional reaming of a wellbore with a tubular body with two cutting sections between end segments. Each cutting section has a plurality of helical blades separated by a flute, and wherein the helical blades are formed from at least two spiral angled sections connected together, with cutting components on the spiral angled sections. The cutting components can be polydiamond cutter nodes, high strength carbide cutting nodes, and tungsten carbide facing coating. The outer diameter of each cutting section is larger than the outer diameter of each of the end segments.
A reaming tool includes a body having a longitudinal axis and an upper end opposite a lower end and a blade located on said body, the blade including a reaming surface having one or more reaming inserts disposed on at least a portion thereof and a cutting surface having one or more cutters disposed on at least a portion thereof. One or more of said cutters are configured (a) so that an extended longitudinal axis of said cutter is positioned at an angle θ between 5 degrees and 85 degrees with respect to a plane perpendicular to the longitudinal axis of said body, or (b) on said cutting surface at a radial distance from said longitudinal axis less than said radial distances between said reaming inserts and said longitudinal axis.
A downhole tool for bidirectional reaming of a wellbore with a tubular body with a central cutting section between a first end segment and a second end segment, wherein the central cutting section has a plurality of helical blades separated by flute sections, and wherein the helical blades each have at least two spiral angled sections connected together, polydiamond cutter nodes, high strength carbide cutting nodes, tungsten carbide hardfacing coating or combinations thereof on the helical blades, and wherein the outer diameter of the central cutting section is larger than the outer diameter of each of the end segments.
The present invention is related a reaming insert for a reaming tool, characterized in that said reaming insert comprises a reaming portion having the shape of a truncated dome. According to a second aspect, the invention is related to a reaming tool comprising a body having a reaming gauge portion characterized in that said reaming gauge portion comprises reaming inserts comprising a reaming portion having the shape of a truncated dome. In a further aspect, the invention is related to a downhole assembly comprising a bottom hole assembly for drilling a borehole, the bottom hole assembly comprising : a housing having a longitudinal axis, a front end and a tail end, and a drilling tool mounted at the front end; the downhole assembly being characterized in that if further comprises said reaming tool. In another aspect, a method of reaming a borehole is provided and comprising the steps of: a) providing said downhole assembly; b) attaching said downhole assembly to a forward end of a drillstring; c) drilling a pilot borehole until the downhole assembly reaches a target depth beneath surface; and d) withdrawing the drillstring from the borehole while rotating the reaming tool of the downhole assembly thereby reaming the borehole and eliminating borehole irregularities sufficiently to render the borehole ready for performing completion processes and preventing the BHA of the assembly from sticking while being withdrawn from the borehole.
A reaming tool includes a body having a longitudinal axis and an upper end opposite a lower end and a blade located on said body, the blade including a reaming surface having one or more reaming inserts disposed on at least a portion thereof and a cutting surface having one or more cutters disposed on at least a portion thereof. One or more of said cutters are configured (a) so that an extended longitudinal axis of said cutter is positioned at an angle .theta. between 5 degrees and 85 degrees with respect to a plane perpendicular to the longitudinal axis of said body, or (b) on said cutting surface at a radial distance from said longitudinal axis less than said radial distances between said reaming inserts and said longitudinal axis.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machines and machine tools; machine coupling and transmission components (except for land vehicles); machines and machine tools for use in drilling, installation, construction and exploration in the oil and gas industry; apparatus for use in relation to drilling for oil and gas; apparatus, equipment and machines used in oil and gas exploration, drilling and production; apparatus for use in relation to installation, construction, maintenance or repair of oil and gas wells; apparatus for use in the cleaning of oil wells; well clean-up tools, namely circulation tools, casing scrapers and brush tools; completion and cementing equipment and apparatus; wellbore casing and liner installation apparatus; wellbore liner hangers and liner hanging apparatus and equipment; apparatus for use in relation to completion or cementation operations during well construction; apparatus for use in well deepening and multi lateral type completion operations during well construction; borehole drilling tools and apparatus; production apparatus for extracting fluids from the ground; drill pipe, drill pipe protectors, packers for wells; drilling, boring, cutting, abrading, grinding, reaming and cleaning apparatus for oil and gas wells; bits for drilling, boring, cutting, abrading, grinding, reaming and cleaning tools; drill shoes, guide shoes, casing shoes; cement shoes; reamers, drill bits; wellbore liner and casing; wellbore running tools; wellbore fishing tools; centralisers for use in the oil and gas industries; casings for downhole use; downhole tubulars and tools; casing drilling shoe for use in the oil and gas industries; drilling apparatus with casing for down hole use; cleaning machines for oil and gas industrial machines; core drilling bits; drill bits for rock drilling; drilling rigs, drilling machines and parts therefore; earth drilling machines; power-operated drilling rigs; oil field equipment, namely, drilling rig mechanization machines and devices; oil field equipment, namely, drilling rig mechanical handling machines and devices; oil-well pumping machines; tool bits for machines; well drilling machines; parts and fittings for all the aforesaid goods. Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, supervision, life-saving and teaching apparatus and instruments; measurement apparatus and instruments for use in oil and gas exploration; measurement apparatus and instruments for use in oil and gas production; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; calculating machines, data processing equipment and computers; fire-extinguishing apparatus; recorded media, computer hardware and firmware; computer software; software downloadable from the Internet; downloadable electronic publications; compact discs; digital music; telecommunications apparatus; clothing for protection against injury, accident, irradiation or fire; furniture adapted for laboratory use. Oil and gas well construction; installation, maintenance and repair services in relation to oil and gas well construction; oil and gas well drilling and production services; installation of oil production apparatus; installation of oil exploration instruments; rental of apparatus for use in the oil and gas industries, namely drilling platforms and drilling tools; well completion and remedial services; well clean-up and debris removal services; oil and gas industrial machine cleaning services; physical clean-up of exploration and drilling project locations to restore them to their original condition; wellbore installation; oil casing, tubing and drill pipe installation; pipe and drill installation; cementing during well construction; sealing of well liners; wirelining for oil wells; deployment of reeled risers during well construction; well deepening and multilateral type completions during well construction; casing design and operation during well construction; liner setting tool operation during well construction; installation services to decrease wellbore geometry; technical consulting related to the installation of oil and gas equipment, control systems, and machinery; advisory and consultancy services in relation to oil and gas extraction and all the aforesaid services. Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; analysis services for oil field exploration; exploration and searching of oil and gas; geophysical exploration for the oil, gas and mining industries; oil and gas well testing; oil and gas prospecting; oil and gas field surveys; analysis and diagnosis of chemicals, oils, gases, greases and lubricants; architecture, industrial design, analysis, testing and research services associated with oil and gas fields, oil workings and gas and oil installations, including providing the services of analysis, testing and research laboratories; geological research and exploration; geological surveys; land surveying; geological prospecting; engineering drawings; technical documentation and reports and technical project studies; research in the field of environmental protection; research and development for others; underwater exploration; technical research; calibration (measuring); environmental protection; quality control; oil-well testing; materials testing; technical project studies; liner setting tool design; information, advisory and consultancy services relating to all of the aforesaid.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machine and machine tools; machine coupling and transmission components (except for land vehicles); machines and machine tools for use in drilling, installation, construction and exploration in the oil and gas industry; apparatus for use in relation to drilling for oil and gas; apparatus, equipment and machines used in oil and gas exploration, drilling and production; apparatus for use in relation to installation, construction, maintenance or repair of oil and gas wells; apparatus for use in the cleaning of oil wells; well clean-up tools, namely circulation tools, casing scrapers and brush tools; completion and cementing equipment and apparatus; wellbore casing and liner installation apparatus; wellbore liner hangers and liner hanging apparatus and equipment; apparatus for use in relation to completion or cementation operations during well construction; apparatus for use in well deepening and multi lateral type completion operations during well construction; borehole drilling tools and apparatus; production apparatus for extracting fluids from the ground; drill pipe, drill pipe protectors, packers for wells; drilling, boring, cutting, abrading, grinding, reaming and cleaning apparatus for oil and gas wells; bits for drilling, boring, cutting, abrading, grinding, reaming and cleaning tools; drill shoes, guide shoes, casing shoes; cement shoes; reamers, drill bits; wellbore liner and casing; wellbore running tools; wellbore fishing tools; centralisers for use in the oil and gas industries; casings for downhole use; downhole tubulars and tools; casing drilling shoe for use in the oil and gas industries; drilling apparatus with casing for down hole use; cleaning machines for oil and gas industrial machines; core drilling bits; drill bits for rock drilling; drilling rigs, drilling machines and parts therefore; earth drilling machines; power-operated drilling rigs; oil field equipment, namely, drilling rig mechanization machines and devices; oil field equipment, namely, drilling rig mechanical handling machines and devices; oil-well pumping machines; tool bits for machines; well drilling machines; parts and fittings for all the aforesaid goods. Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, signalling, supervision, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; calculating machines, data processing equipment and computers; fire-extinguishing apparatus; recorded media, computer hardware and firmware; computer software; software downloadable from the Internet; downloadable electronic publications; compact discs; digital music; telecommunications apparatus; clothing for protection against injury, accident, irradiation or fire; furniture adapted for laboratory use. Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; analysis services for oil field exploration; exploration and searching of oil and gas; geophysical exploration for the oil, gas and mining industries; oil and gas well testing; oil and gas prospecting; oil and gas field surveys; analysis and diagnosis of chemicals, oils, gases, greases and lubricants; architecture, industrial design, analysis, testing and research services associated with oil and gas fields, oil workings and gas and oil installations, including providing the services of analysis, testing and research laboratories; geological research and exploration; geological surveys; land surveying; geological prospecting; engineering drawings; technical documentation and reports and technical project studies; research in the field of environmental protection; research and development for others; underwater exploration; technical research; calibration (measuring); environmental protection; quality control; oil-well testing; materials testing; technical project studies; information, advisory and consultancy services relating to all of the aforesaid.
A directional drilling tool is provided, which comprises a first end (2) attachable to a drill string, and a second end (4) attachable to a drill bit. A swivel section (6) is provided intermediate the first and second ends (2,4) and has a first swivel member (18) non-rotatably attached to the first end (2) and a second swivel member (20) rotatably coupled to the first swivel member (18) and rotatable relative thereto about a first axis of rotation which is co-axial with a longitudinal axis (LI) of the tool. A first actuator is adapted to selectively rotate the second swivel member (20) about the first axis of rotation. An adjustable bend section (12) has a first bend member (118) non-rotatably attached to the second swivel member (20) and a second bend member (120) rotatably coupled to the first bend member (118), where the first bend member (118) is co-axial with the longitudinal axis (LI), and the second bend member (120) is rotatable relative to the first bend member (118) about a second axis of rotation (R) which is at a non-zero angle relative to the longitudinal axis (LI). A second actuator is adapted to selectively rotate the second bend member (120) about the second axis of rotation (R). A directional drilling system incorporating the tool, a control process for the tool, and a motor drive for rotating a second body relative to a first body are also provided.
Reamer elements for use with roller reamers and other types of reamer apparatuses, methods for forming such reamer elements, and methods for performing drilling operations using such reamer elements are disclosed. The reamer element includes a body formed from a matrix of tungsten carbide and at least one binding metal, and can include a tube disposed therethrough. In use, the body resists compressive forces, while the tube resists tensile forces, thereby preventing deformation of the reamer element. The matrix material of the body provides increased wear resistance, decreased magnetic interference, decreased yield, and increased weight on a drill bit when compared to conventional steel components.
The invention relates to a device including an apparatus for measuring drilling or coring operation parameters using a bit attached to the end of a drill string, the measuring apparatus (10) being housed in a chamber (5) provided in a sleeve (1, 18) that is designed to be positioned between two drill pipes of the drill string or between the bit and a drill pipe of the drill string, or to form a coupling (18) for joining a cutting head (15) of the bit to a drill string, the chamber (5) leading into an axial channel (11) of the sleeve.
E21B 17/04 - CouplingsJoints between rod and bit, or between rod and rod
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
A drilling stabilizer having a body and a plurality of blades integrally cast from tungsten carbide particles bound together with a heated metal binder, for use in drilling oil and gas wells, has a first box end and a second pin end at the distal end of the stabilizer. A plurality a PDC cutters are mounted on the top end of the stabilizer to allow the stabilizer to be used as a reamer when pulling the stabilizer out of the borehole. A steel tube is formed within the interior of the stabilizer in the molding process and which allows the pin end to have steel threads and the box end to also have steel threads to facilitate the makeup of the stabilizer with either the steel threads of a drill bit or the steel threads of joints of drill pipe.
