A threaded connection includes a first tubular member comprising a convex circular sealing surface with a first seal radius and a second tubular member comprising a primary concave circular sealing surface with a second seal radius. The first seal radius and second seal radius are preferably different, with the second seal radius more preferably being larger than the first seal radius. The second tubular member may also comprise a second concave circular surface with a third radius that is smaller than the second seal radius. The second tubular member may also comprise a frontside angled surface forming an angle as measured from the longitudinal axis of the connection.
F16L 13/16 - Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
F16L 15/04 - Screw-threaded jointsForms of screw-threads for such joints with additional sealings
E21B 17/04 - CouplingsJoints between rod and bit, or between rod and rod
F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
A threaded connection includes a first tubular member comprising a convex circular sealing surface with a first seal radius and a second tubular member comprising a primary concave circular sealing surface with a second seal radius. The first seal radius and second seal radius are preferably different, with the second seal radius more preferably being larger than the first seal radius. The second tubular member may also comprise a second concave circular surface with a third radius that is smaller than the second seal radius. The second tubular member may also comprise a frontside angled surface forming an angle as measured from the longitudinal axis of the connection.
A tubular goods connection for releasably coupling tubular members includes: a coupling having a first internal wedge dove-tail thread formed within a longitudinal bore of the coupling and a second internal dove-tail wedge thread; a first tubular member having a first mating external vanishing dove-tail wedge thread extending from a first proximal pin end face; and a second tubular member substantially identical to the first tubular member; wherein when the first and second tubular members are made-up into the coupling using a predetermined recommended optimum torque, a distance D between the first pin end face and the second pin end face is in the range of 0 to 10 millimeters and when the distance D is equal to 0 there is contact between the first pin end face and a second pin end face of the second tubular good but there is no axial interference.
A sealing system connecting first and second tubular members includes a first curvilinear sealing surface on the first tubular member and a second curvilinear sealing surface on the second tubular member. Both the first and second curvilinear sealing surfaces are disposed between two sets of threading on the respective first and second tubular members. When the first and second tubular members are in a connected configuration, the first and second curvilinear sealing surfaces contact and interfere to form an annular curvilinear center seal. A relief pocket may be disposed adjacent to the first and/or second curvilinear sealing surfaces to contain excess lubricant between the first and second tubular members.
A tubular connection includes a first joint of casing having an integral box end with an internal female wedge threaded zone having wedge threads disposed on a portion of the integral box end, and a second joint of casing having an integral pin end with an external male wedge threaded zone having wedge threads disposed on a portion of the integral pin end. The external male wedge threads engage with the internal female wedge threads. The second joint of casing has an internal diameter D1, and also includes an internal annular recess with an internal diameter D2. D2 is greater than D1, and the annular recess is disposed longitudinally along an inner surface of the second joint of casing. The annular recess is positioned radially adjacent to a portion of the external male threads disposed on a lower portion of the pin end.
A threaded connection for exploration and production of a hydrocarbon well and comprising a coupling member, a first tubular member and a second tubular member, wherein the coupling member has a coupling outer diameter, a first box part with first inner threads, and a second box part with second inner threads, the first tubular member has a first unthreaded tube part, and a first pin part with first outer threads, the second tubular member has a second unthreaded tube part, and a second pin part with second outer threads, the first inner threads and the first outer threads are configured to form a first inner primary seal at final make-up, and the second inner threads and the second outer threads are configured to form a second inner primary seal at final make-up.
A sealing system connecting first and second tubular members includes a first curvilinear sealing surface on the first tubular member and a second curvilinear sealing surface on the second tubular member. Both the first and second curvilinear sealing surfaces are disposed between two sets of threading on the respective first and second tubular members. When the first and second tubular members are in a connected configuration, the first and second curvilinear sealing surfaces contact and interfere to form an annular curvilinear center seal. A relief pocket may be disposed adjacent to the first and/or second curvilinear sealing surfaces to contain excess lubricant between the first and second tubular members.
A tubular goods connection for releasably coupling tubular members includes: a coupling having a first internal wedge dove-tail thread formed within a longitudinal bore of the coupling and a second internal dove-tail wedge thread; a first tubular member having a first mating external vanishing dove-tail wedge thread extending from a first proximal pin end face; and a second tubular member substantially identical to the first tubular member; wherein when the first and second tubular members are made-up into the coupling using a predetermined recommended optimum torque, a distance D between the first pin end face and the second pin end face is in the range of 0 to 10 millimeters and when the distance D is equal to 0 there is contact between the first pin end face and a second pin end face of the second tubular good but there is no axial interference.
A threaded connection for exploration and production of a hydrocarbon well and comprising a coupling member, a first tubular member and a second tubular member, wherein the coupling member has a coupling outer diameter, a first box part with first inner threads, and a second box part with second inner threads, the first tubular member has a first unthreaded tube part, and a first pin part with first outer threads, the second tubular member has a second unthreaded tube part, and a second pin part with second outer threads, the first inner threads and the first outer threads are configured to form a first inner primary seal at final make-up, and the second inner threads and the second outer threads are configured to form a second inner primary seal at final make-up.
A threaded connection for exploration and production of a hydrocarbon well and comprising a coupling member, a first tubular member and a second tubular member, wherein the coupling member has a coupling outer diameter, a first box part with first inner threads, and a second box part with second inner threads, the first tubular member has a first unthreaded tube part, and a first pin part with first outer threads, the second tubular member has a second unthreaded tube part, and a second pin part with second outer threads, the first inner threads and the first outer threads are configured to form a first inner primary seal at final make-up, and the second inner threads and the second outer threads are configured to form a second inner primary seal at final make-up.
06 - Common metals and ores; objects made of metal
Goods & Services
Pipes, tubes, and casings, including threaded pipes, tubes, and casings not constituting machine parts, all made of common metal and for use in drilling and for operating gas and oil wells, connections and fittings for aforesaid goods, pipe joints of common metal and parts thereof and fittings for such goods, all for use in drilling and operating gas and oil wells.
A sealing system connecting first and second tubular members includes a first curvilinear sealing surface on the first tubular member and a second curvilinear sealing surface on the second tubular member. Both the first and second curvilinear sealing surfaces are disposed between two sets of threading on the respective first and second tubular members. When the first and second tubular members are in a connected configuration, the first and second curvilinear sealing surfaces contact and interfere to form an annular curvilinear center seal. A relief pocket may be disposed adjacent to the first and/or second curvilinear sealing surfaces to contain excess lubricant between the first and second tubular members.
A connection includes a first tubular member and a second tubular member. The first tubular member has a pin end with threading and a pin face at an outermost end of the pin end of the first tubular member and the second tubular member has a box end with threading and a box face at an outermost end of the box end of the second tubular member. The first tubular member and the second tubular member are configured to connect when the threading of the pin end engages with the threading of the box end. The thickness of the pin face is substantially identical to the thickness of the box face.
A connection includes a first expandable tubular member having a first screw threadform defined by a first plurality of crests, roots, and flanks, where each flank separates each crest from each root. The connection also includes a second expandable tubular member having a second screw threadform defined by a second plurality of crests, roots, and flanks, where each flank separates each crest from each root. The crests and roots are substantially axial to the tubular members and the flanks are substantially radial to the tubular members. The first expandable tubular member and the second expandable tubular member are configured to connect when the first threadform engages with the second threadform. Clearances are formed between the first plurality of flanks and the second plurality of flanks when the first and second expandable tubular members connect.
A threaded tubular connection for drilling or operating hydrocarbon wells comprising a longitudinal axis, a metal pin member having a tapered two-step wedge pin thread with dovetail wedge threads and a pin sealing surface located between the small and large diameter pin thread steps, and a metal box member having a tapered two-step wedge box thread with dovetail wedge threads and a box sealing surface located between the small and large diameter box thread steps, wherein the tubular connection is free from any final make-up stop shoulder defining a final make-up position for the pin member relative to the box member, the small diameter wedge thread set and the large diameter wedge thread set are dimensioned to have a first axial clearance and a second axial clearance.
A tubular connection includes a first joint of casing having an integral box end with an internal female wedge threaded zone having wedge threads disposed on a portion of the integral box end, and a second joint of casing having an integral pin end with an external male wedge threaded zone having wedge threads disposed on a portion of the integral pin end. The external male wedge threads engage with the internal female wedge threads. The second joint of casing has an internal diameter D1, and also includes an internal annular recess with an internal diameter D2. D2 is greater than D1, and the annular recess is disposed longitudinally along an inner surface of the second joint of casing. The annular recess is positioned radially adjacent to a portion of the external male threads disposed on a lower portion of the pin end.
A tubular connection includes a first joint of casing having an integral box end with an internal female wedge threaded zone having wedge threads disposed on a portion of the integral box end, and a second joint of casing having an integral pin end with an external male wedge threaded zone having wedge threads disposed on a portion of the integral pin end. The external male wedge threads engage with the internal female wedge threads. The second joint of casing has an internal diameter D1, and also includes an internal annular recess with an internal diameter D2. D2 is greater than D1, and the annular recess is disposed longitudinally along an inner surface of the second joint of casing. The annular recess is positioned radially adjacent to a portion of the external male threads disposed on a lower portion of the pin end.
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
24.
Threadform having crest to root thread compound relief areas
A connection includes a first tubular member having a first screw threadform defined by a first plurality of crests, roots, and flanks, where each flank separates each crest from each root. The connection also includes a second tubular member having a second screw threadform defined by a second plurality of crests, roots, and flanks, where each flank separates each crest from each root. The crests and roots are substantially axial to the tubular members and the flanks are substantially radial to the tubular members. The first tubular member and the second tubular member are configured to connect when the first threadform engages with the second threadform. Thread compound relief spaces are formed between the first plurality of crests and the second plurality of roots when the first and second tubular members connect.
A connection includes a first tubular member having a first screw threadform defined by a first plurality of crests, roots, and flanks, where each flank separates each crest from each root. The connection also includes a second tubular member having a second screw threadform defined by a second plurality of crests, roots, and flanks, where each flank separates each crest from each root. The crests and roots are substantially axial to the tubular members and the flanks are substantially radial to the tubular members. The first tubular member and the second tubular member are configured to connect when the first threadform engages with the second threadform. Thread compound relief spaces are formed between the first plurality of crests and the second plurality of roots and between the second plurality of crests and the first plurality of roots when the first and second tubular members connect.
A threaded connection includes a pin member having an external wedge thread increasing in width in a first direction, a box member having an internal wedge thread increasing in width in a second direction so that complementary internal and external wedge threads move into engagement upon make-up of the connection, a box thread stop at an end of the internal wedge thread of the box member, and a pin thread stop at an end of the external wedge thread of the pin member, wherein the pin and box thread stops are configured to contact when the connection is fully engaged.
A sealing system connecting first and second tubular members includes a first curvilinear sealing surface on the first tubular member and a second curvilinear sealing surface on the second tubular member. Both the first and second curvilinear sealing surfaces are disposed between two sets of threading on the respective first and second tubular members. When the first and second tubular members are in a connected configuration, the first and second curvilinear sealing surfaces contact and interfere to form an annular curvilinear center seal. A relief pocket may be disposed adjacent to the first and/or second curvilinear sealing surfaces to contain excess lubricant between the first and second tubular members.
A threaded tubular connection for drilling or operating hydrocarbon wells comprising a longitudinal axis, a metal pin member having a tapered two-step wedge pin thread with dovetail wedge threads and a pin sealing surface located between the small and large diameter pin thread steps, and a metal box member having a tapered two-step wedge box thread with dovetail wedge threads and a box sealing surface located between the small and large diameter box thread steps, wherein the tubular connection is free from any final make-up stop shoulder defining a final make-up position for the pin member relative to the box member, the small diameter wedge thread set and the large diameter wedge thread set are dimensioned to have a first axial clearance and a second axial clearance.
A threaded tubular connection for drilling or operating hydrocarbon wells comprising a longitudinal axis, a metal pin member having a tapered two-step wedge pin thread with dovetail wedge threads and a pin sealing surface located between the small and large diameter pin thread steps, and a metal box member having a tapered two-step wedge box thread with dovetail wedge threads and a box sealing surface located between the small and large diameter box thread steps, wherein the tubular connection is free from any final make-up stop shoulder defining a final make-up position for the pin member relative to the box member, the small diameter wedge thread set and the large diameter wedge thread set are dimensioned to have a first axial clearance and a second axial clearance.
A tubular goods connection for releasably coupling tubular members includes: a coupling having a first internal wedge dove-tail thread formed within a longitudinal bore of the coupling and a second internal dove-tail wedge thread; a first tubular member having a first mating external vanishing dove-tail wedge thread extending from a first proximal pin end face; and a second tubular member substantially identical to the first tubular member; wherein when the first and second tubular members are made-up into the coupling using a predetermined recommended optimum torque, a distance D between the first pin end face and the second pin end face is in the range of 0 to 10 millimeters and when the distance D is equal to 0 there is contact between the first pin end face and a second pin end face of the second tubular good but there is no axial interference.
A tubular goods connection for releasably coupling tubular members includes: a coupling having a first internal wedge dove-tail thread formed within a longitudinal bore of the coupling and a second internal dove-tail wedge thread; a first tubular member having a first mating external vanishing dove-tail wedge thread extending from a first proximal pin end face; and a second tubular member substantially identical to the first tubular member; wherein when the first and second tubular members are made-up into the coupling using a predetermined recommended optimum torque, a distance D between the first pin end face and the second pin end face is in the range of 0 to 10 millimeters and when the distance D is equal to 0 there is contact between the first pin end face and a second pin end face of the second tubular good but there is no axial interference.
A tubular connection is formed by a box member and a pin member, each of which has a tapered constant pitch thread. A profile defined by the thread of at least one of the pin member and the box member results in a pitch line that is a stepped pitch line. The stepped pitch line configuration may produce a wide radial band of substantive contact between the stab flanks of the pin member and box member upon full make-up of the connection.
06 - Common metals and ores; objects made of metal
Goods & Services
(1) Steel and metal pipes and tubing and their parts and fittings therefor for use in the oil and gas industry, mining and geothermal energy harvesting; Metal pipe and metal tube joints for use in the oil and gas industry, mining, and geothermal energy harvesting; Metal junctions for pipes; Seamless metal line pipes for use in the oil and gas industry, mining, and geothermal energy harvesting; Welded metal line pipes for use in the oil and gas industry, mining, and geothermal energy harvesting; Metal mother pipes for use in the oil and gas industry, mining, and geothermal energy harvesting; Metal drilling pipes for use in the oil and gas industry, mining, and geothermal energy harvesting; Steel metal pipes for use in the oil and gas industry, mining, and geothermal energy harvesting
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes.
A tubular connection comprising a longitudinal axis, a pin member comprising a distal pin end, a tapered pin thread having a constant pin taper angle a: with respect to the longitudinal axis, and a pin sealing surface located between the pin thread and the distal pin end, and a box member comprising a distal box end, a box sealing surface, and a tapered box thread having a constant box taper angle β1 with respect to the longitudinal axis and located between the box sealing surface and the distal box end, and wherein the pin thread is configured to cooperate by make up with the box thread along a cooperating area, while having a radial thread interference between the pin thread and the box thread along at least part of the cooperating area, the pin sealing surface and the box sealing surface are configured to contact each other upon make-up in a sealing manner while forming a metal to metal seal, and the pin taper angle α1 is larger than the box taper angle β1.
A tubular connection comprising a longitudinal axis, a pin member comprising a distal pin end, a tapered pin thread having a constant pin taper angle a: with respect to the longitudinal axis, and a pin sealing surface located between the pin thread and the distal pin end, and a box member comprising a distal box end, a box sealing surface, and a tapered box thread having a constant box taper angle ß1 with respect to the longitudinal axis and located between the box sealing surface and the distal box end, and wherein the pin thread is configured to cooperate by make up with the box thread along a cooperating area, while having a radial thread interference between the pin thread and the box thread along at least part of the cooperating area, the pin sealing surface and the box sealing surface are configured to contact each other upon make-up in a sealing manner while forming a metal to metal seal, and the pin taper angle a1 is larger than the box taper angle ß1.
A metal-to-metal sealing system connecting first and second tubular members includes a first seal configuration on the first tubular member and a second seal configuration on the second tubular member. The first seal configuration includes a first annular groove and a first annular tooth, and the second seal configuration includes a second annular groove and a second annular tooth. The second annular tooth is positioned within the first annular groove with the second annular tooth face engaging the first annular shoulder face to define a first shoulder. The first annular tooth is positioned within the second annular groove with the first annular tooth face engaging the second annular shoulder face to define a second shoulder. Locations of primary sealing contact of surfaces of the members are spaced axially away from the first and second shoulders.
A tubular connection includes a pin member and a box member. The pin member has a first thread structure and a helical torque shoulder spaced axially along the pin member from the first thread structure. The box member has a second thread structure and a second helical torque shoulder spaced axially along the box member from the second thread structure. The first thread structure and the second thread structure are sized and located to control a stab position of the tubular connection, and in the stab position the first helical torque shoulder does not engage or axially overlap with the second helical torque shoulder. A method of joining tubular members utilizing a helical torque shoulder is also provided.
A metal-to-metal sealing system connecting first and second tubular members includes a first seal configuration on the first tubular member and a second seal configuration on the second tubular member. The first seal configuration includes a first annular groove and a first annular tooth, and the second seal configuration includes a second annular groove and a second annular tooth. The second annular tooth is positioned within the first annular groove with the second annular tooth face engaging the first annular shoulder face to define a first shoulder. The first annular tooth is positioned within the second annular groove with the first annular tooth face engaging the second annular shoulder face to define a second shoulder. Locations of primary sealing contact of surfaces of the members are spaced axially away from the first and second shoulders.
A tubular connection includes a pin member and a box member. The pin member has a first thread structure and a helical torque shoulder spaced axially along the pin member from the first thread structure. The box member has a second thread structure and a second helical torque shoulder spaced axially along the box member from the second thread structure. The first thread structure and the second thread structure are sized and located to control a stab position of the tubular connection, and in the stab position the first helical torque shoulder does not engage or axially overlap with the second helical torque shoulder. A method of joining tubular members utilizing a helical torque shoulder is also provided.
A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal pipe collars; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; petrochemical metal pipes; boiler metal pipes; metal exchanger pipes and metal tube exchanger pipes; metal drilling pipes; steel and metal pipes and vessels used for transporting oil and fuel in the nature of rigid metal tubing; metal tubes used in autoparts and safety devices.
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal pipe collars; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; petrochemical metal pipes; boiler metal pipes; metal exchanger pipes and metal tube exchanger pipes; metal drilling pipes; steel and metal pipes and vessels used for transporting oil and fuel in the nature of rigid metal tubing; metal tubes used in autoparts and safety devices.
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal pipe collars; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; petrochemical metal pipes; boiler metal pipes; metal exchanger pipes and metal tube exchanger pipes; metal drilling pipes; steel and metal pipes and vessels used for transporting oil and fuel in the nature of rigid metal tubing; metal tubes used in autoparts and safety devices.
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal pipe collars; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; petrochemical metal pipes; boiler metal pipes; metal exchanger pipes and metal tube exchanger pipes; metal drilling pipes; steel and metal pipes and vessels used for transporting oil and fuel in the nature of ridgid metal tubing; metal tubes used in autoparts and safety devices, excluding metal horseshoes for racing and running horses and excluding anchors
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
06 - Common metals and ores; objects made of metal
Goods & Services
Steel and metal pipes and tubing, including their parts and fittings therefor; metal pipe and tube joints; metal junctions for pipes; seamless metal line pipes; welded metal line pipe; metal mother pipes; metal drilling pipes; steel metal pipes
55.
Step-to-step wedge thread connections and related methods
A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
A tubular connection includes a pin member having external wedge threads configured to engage a box member having corresponding internal wedge threads, and a solid lubricant coating applied on at least one of the internal and external wedge threads wherein the solid lubricant coating comprises a first uniform layer of a dry corrosion inhibiting coating made of an epoxy resin containing particles of zinc and a second uniform layer of a dry lubricant coating covering the first uniform layer.
A tubular connection includes a pin member and box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. The small step and the large step of both the pin member and the box member are formed on a single taper. Upon a selected make-up of the pin member with the box member, a seal is formed between at least a portion of the first seal surface and the second seal surface.
A tubular connection includes a pin member having external wedge threads configured to engage a box member having corresponding internal wedge threads, and a solid lubricant coating applied on at least one of the internal and external wedge threads wherein the solid lubricant coating comprises a first uniform layer of a dry corrosion inhibiting coating made of an epoxy resin containing particles of zinc and a second uniform layer of a dry lubricant coating covering the first uniform layer.
A wedge threaded connection includes a pin member threadably coupled to a box member, a first data connector embedded in a portion of a thread of the pin member, and a second data connector embedded in a portion of a thread of the box member, wherein upon selected make-up of the pin member with the box member, the first data connector engages the second data connector such that a data signal may pass from the pin member to the box member.
E21B 47/12 - 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
F16L 25/01 - Construction or details of pipe joints not provided for in, or of interest apart from, groups specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof
H01R 4/56 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
H01R 4/60 - Connections between or with tubular conductors
A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has a box thread with a box thread crest, a box thread root, a box load flank, and a box stab flank. At least one of the pin thread crest, the pin load flank, the pin stab flank, the box thread crest, the box load flank, and the box stab flank has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, a reduced clearance gap exists between the pin thread and the box thread at the at least one perturbation.
An electrically-insulative threaded connection includes a pin member having a pin thread and a box member having a box thread. An insulating composite layer is disposed between the pin thread and the box thread. The insulating composite layer includes an insulating fiber and insulating resin. The pin thread and the box thread are wedge threads. A method of making an electrically-insulative threaded connection includes forming a pin wedge thread on a pin member and winding a filament over the pin wedge thread. The filament is wetted with a resin, thereby forming a composite layer. The composite layer is cured and machined to mate with a box wedge thread.
B23P 25/00 - Auxiliary treatment of workpieces, before or during machining operations, to facilitate the action of the tool or the attainment of a desired final condition of the work, e.g. relief of internal stress
A threaded connection between adjacent tubular members includes a pin member providing an external wedge thread and a box member providing an internal wedge thread, wherein the internal wedge thread corresponds with the external wedge thread. Further, the threaded connection includes at least one interruption along a helical thread length of one of the external wedge thread and the internal wedge thread and at least two regions along an axial length of the threaded connection where the external wedge thread and the internal wedge thread form a thread seal.
A threaded connection between adjacent tubular members includes a pin member providing an external wedge thread and a box member providing an internal wedge thread, wherein the internal wedge thread corresponds with the external wedge thread. Further, the threaded connection includes at least one interruption along a helical thread length of one of the external wedge thread and the internal wedge thread and at least two regions along an axial length of the threaded connection where the external wedge thread and the internal wedge thread form a thread seal.
A method to design an oilfield tubular string for a well includes determining the corrosiveness of fluids in the well and selecting an alloy for the oilfield tubular string, such that a corrosion resistance and a yield strength of the alloy may be varied through a heat treatment process, heat treating the alloy to survive the determined well fluid corrosiveness and determining the yield strength of the heat treated alloy, and selecting a diameter, a wall thickness, and a connection type for the oilfield tubing stnng based on the determined yield strength.
A threaded connection includes a pin member providing a single external thread comprising a first external portion and a second external portion, a box member providing a single internal thread comprising a first internal portion and a second internal portion, and a radial metal-to-metal seal to seal between the pin member and the box member, wherein the first and second internal portions threadably correspond with the first and second external portions, and wherein the first internal and external portions are characterized by a first wedge ratio and the second internal and external portions are characterized by a second wedge ratio, wherein the first wedge ratio is less than the second wedge ratio.
A threaded connection includes a pin member providing a single external thread comprising a first external portion and a second external portion, a box member providing a single internal thread comprising a first internal portion and a second internal portion, and a radial metal-to-metal seal to seal between the pin member and the box member, wherein the first and second internal portions threadably correspond with the first and second external portions, and wherein the first internal and external portions are characterized by a first wedge ratio and the second internal and external portions are characterized by a second wedge ratio, wherein the first wedge ratio is less than the second wedge ratio.
A method for making-up a wedge thread connection comprising a pin member and a box member includes applying a pipe dope to at least one of the pin member and the box member, wherein the pin member and the box member comprise corresponding wedge threads, reducing the viscosity of the pipe dope at least temporarily, and rotating the pin member relative to the box member to make-up the wedge thread connection, wherein the rotation occurs while the viscosity of the pipe dope is at least temporarily reduced. A collar to be used with a tong assembly in making-up a threaded connection between a pin member and a box member includes at least one power unit configured to temporarily reduce the viscosity of pipe dope applied to at least one of the pin member and the box member, and an inner surface having a selected diameter to correspond to an outer diameter of at least one of the pin member and the box member.
A method for making-up a wedge thread connection comprising a pin member and a box member includes applying a pipe dope to at least one of the pin member and the box member, wherein the pin member and the box member comprise corresponding wedge threads, reducing the viscosity of the pipe dope at least temporarily, and rotating the pin member relative to the box member to make-up the wedge thread connection, wherein the rotation occurs while the viscosity of the pipe dope is at least temporarily reduced. A collar to be used with a tong assembly in making-up a threaded connection between a pin member and a box member includes at least one power unit configured to temporarily reduce the viscosity of pipe dope applied to at least one of the pin member and the box member, and an inner surface having a selected diameter to correspond to an outer diameter of at least one of the pin member and the box member.
A threaded connection for a conduit includes a pin member and a box member. The pin member includes a pin thread having a pin thread crest, a pin thread root, a pin load flank oriented at a pin load flank angle, and a pin stab flank oriented at a pin stab flank angle. The box member includes a box thread having a box thread crest, a box thread root, a box load flank oriented at a box load flank angle, and a box stab flank oriented at a box stab flank angle. At least one of the pin load flank angle, the pin stab flank angle, the box load flank angle, and the box stab flank angle varies over at least part of the threaded connection.
Threaded connections including a pin member and a box member and are mismatched. The pin member and the box member have wedge threads formed thereon with a gap formed between pin and box load flanks and/or pin and box stab flanks of the threaded connection. The mismatch may comprise different flank angles and/or different flank profiles between corresponding flanks.
Threaded connections including a pin member and a box member and are mismatched. The pin member and the box member have wedge threads formed thereon with a gap formed between pin and box load flanks and/or pin and box stab flanks of the threaded connection. The mismatch may comprise different flank angles and/or different flank profiles between corresponding flanks.
A threaded connection includes a pin member having a pin thread having a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank, a box member having a box thread having a box thread crest, a box thread root, a box load flank, and a box stab flank, wherein at least one of the pin thread crest, the pin thread root, the box thread crest, and the box thread root has at least one perturbation formed thereon, and wherein upon a selected make-up of the pin member with the box member, at least one of a localized clearance or a localized interference exists between the pin thread and the box thread at the at least one perturbation.
A wedge-threaded tubular connection includes a pin member and a box member, wherein each of the pin and box members include an engaged thread area, and a clearance gap volume formed between corresponding roots and crests of the pin and box members and arranged along an axial length of the engaged thread area according to a distribution profile. The clearance gap volume distribution profile is configured having a greater clearance gap volume proximate a central portion of the engaged thread area and progressively less clearance gap volume towards each of the distal ends of the engaged thread area.
A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has a box thread with a box thread crest, a box thread root, a box load flank, and a box stab flank. At least one of the pin thread crest, the pin load flank, the pin stab flank, the box thread crest, the box load flank, and the box stab flank has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, a reduced clearance gap exists between the pin thread and the box thread at the at least one perturbation.
A threaded connection includes a pin member having a pin thread having a pin load flank and a pin stab flank. The threaded connection includes a box member having a box thread having a box load flank and a box stab flank. The pin thread includes a first wedge segment on the pin stab flank and the box thread includes a second wedge segment on the box stab flank. Upon make-up of the pin member with the box member, a contact stress results from engagement of the first wedge segment with the second wedge segment.
An electrically-insulative threaded connection includes a pin member having a pin thread and a box member having a box thread. An insulating composite layer is disposed between the pin thread and the box thread. The insulating composite layer includes an insulating fiber and insulating resin. The pin thread and the box thread are wedge threads. A method of making an electrically-insulative threaded connection includes forming a pin wedge thread on a pin member and winding a filament over the pin wedge thread. The filament is wetted with a resin, thereby forming a composite layer. The composite layer is cured and machined to mate with a box wedge thread.
An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. Upon a selected make-up of the pin member with the box member a selected gap exists between the first seal surface and the second seal surface. The gap is selected such that, when plastically radially expanded by a selected amount, a seal is formed between at least a portion of the first seal surface and the second seal surface.
F16L 37/24 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action
An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. Upon a selected make-up of the pin member with the box member a selected gap exists between the first seal surface and the second seal surface. The gap is selected such that, when plastically radially expanded by a selected amount, a seal is formed between at least a portion of the first seal surface and the second seal surface.
F16L 13/14 - Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
A tubular connection (50) is provided with a first thread (74, 54) on a first step (41) having an initial makeup location and a second thread (55, 75) on a second step (42), the second thread being a wedge thread and having a selected clearance (90) on stab (79) and load (59) flanks at the initial makeup location of the first thread.
A threaded connection having wedge threads, and a method of manufacturing said threaded connection. The threaded connection includes a pin member (101) and a box member (102) having a pin thread (106) and a box thread (107), respectively. The pin thread has a pin thread crest (221), a pin thread root (291), a pin load flank (226), and a pin stab flank (231). The pin thread (106) includes at least a first step (401), a mid-step (402), and a second step (403) formed sequentially thereon. The box thread (107) has a box thread crest (292), a box thread root (222), a box load flank (225), and a box stab flank (232). The box thread includes at least a first step, a mid-step, and a second step formed sequentially thereon. The steps on the box thread correspond generally in axial position with the steps on the pin thread. The first step (401) has a first wedge ratio, the mid-step (402) has a transition wedge ratio, and the second step (403) has a second wedge ratio. The thread leads are substantially constant within each of the steps. The connection is designed such that, at make-up of the pin member with the box member, a clearance exists between at least one of the corresponding load flanks and the corresponding stab flanks on at least one of the first step, the mid-step, and the second step.
A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has a box thread with a box thread crest, a box thread root, a box load flank, and a box stab flank. At least one of the pin thread crest, the pin load flank, the pin stab flank, the box thread crest, the box load flank, and the box stab flank has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, an increased contact stress exists between the pin thread and the box thread at the at least one perturbation.
A threaded connection includes a continuous pin thread including at least a first step, a mid-step, and a second step formed sequentially thereon. A continuous box thread includes at least a first step, a mid-step, and a second step formed sequentially thereon, wherein the steps on the box thread correspond generally in axial position with the steps on the pin thread. The first step has a first wedge ratio, the mid-step has a transition wedge ratio, and the second step has a second wedge ratio, wherein thread leads are substantially constant within each of the steps. The connection is designed such that at make-up of a pin member with a box member, a clearance exists between at least one of corresponding load flanks and corresponding stab flanks on at least one of the first step, the mid-step, and the second step.
A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has a box thread with a box thread crest, a box thread root, a box load flank, and a box stab flank. At least one of the pin thread crest, the pin load flank, the pin stab flank, the box thread crest, the box load flank, and the box stab flank has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, an increased contact stress exists between the pin thread and the box thread at the at least one perturbation.
A tubular connection is provided with a first thread on a first step having an initial makeup location and a second thread on a second step, the second thread being a wedge thread and having a selected clearance on stab and load flanks at the initial makeup location of the first thread.
Tubular connections and methods of designing tubular connections having selected root/crest clearance when the box member and pin member are made-up. When the tubular connection is radially expanded, a thread seal is formed over at least part of the tubular connection.
F16L 13/14 - Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
A tool for radially expanding casing having a tool body that includes a proximal end, a distal end, and an outer surface. The tool includes at least one hydraulic channel disposed axially. The at least one hydraulic channel transmits hydraulic pressure from behind the expansion tool forward in the direction of travel of the expansion tool.
E21B 43/10 - Setting of casings, screens or liners in wells
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
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Metal oil well tubing, drill pipe and casing, production pipe and risers; metal pipes and fittings therefor; metal drill pipe with threads, metal casing joints, tubing joints, drill stem joints, pipe connectors and flush joint drill pipes; offshore drilling equipment, namely, metal marine drilling and production risers and accessories, and connections therefor [ Well drilling machinery and drilling tools namely, tool joints, safety joints, gas-pressure-control valves, pneumatic valves, choke valves, drill-stem valves, hydraulic valves, mud pumps, oil pumps and parts thereof; water pumps and parts thereof; subsea multiplex electro-hydraulic control systems comprising hydraulic valve actuators, hydraulic control valves, and multiplexed digital control computers and software ] [ Pressure control equipment, namely, blowout preventers and well tools, namely, annular diverters; pressure control equipment, namely, accumulators and pulsation dampeners ]
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
04 - Industrial oils and greases; lubricants; fuels
05 - Pharmaceutical, veterinary and sanitary products
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
29 - Meat, dairy products, prepared or preserved foods
35 - Advertising and business services
37 - Construction and mining; installation and repair services
Goods & Services
(1) Well casing threads, well tubing threads, well drill pipe threads, well drill assemblies and parts, well preventer packers, accumulators for fluid pressure, control manifolds.
(2) Pulsation dampeners, surge absorbers.
(3) Wire line stripper.
(4) Well rotating kelly packers.
(5) Kelly cocks.
(6) Valves.
(7) Pipes, tubes and casings; threaded pipes, threaded tubes and threaded casings all for use in drilling.
(8) Automatic systems for monitoring and controlling functions at remote facilities, via data gathering, transmission and processing; microprocessor, remote terminal unit, oil and water monitors, fluid meters and flow detectors. (1) Drilling, operating, repairing and maintenance of all and gas wells.
(2) Threading of pipes, tubes and casings.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
08 - Hand tools and implements
11 - Environmental control apparatus
Goods & Services
(1) Well drilling machinery and tools--namely, hydraulic feed rotary tables; draw-works; flush-joint drill pipe; tool joints; under-reamers; core barrels; safety joints; core bits; fishing tools; gas-pressure control valves; mud pumps; steam engines; steam boilers; hydraulic turbines; oil pumps and parts thereof; water pumps and parts thereof; steam condensers; internal combustion engines and parts thereof; electric motors and generators.
