WO2016164973A1 - A coupling - Google Patents
A coupling Download PDFInfo
- Publication number
- WO2016164973A1 WO2016164973A1 PCT/AU2016/050268 AU2016050268W WO2016164973A1 WO 2016164973 A1 WO2016164973 A1 WO 2016164973A1 AU 2016050268 W AU2016050268 W AU 2016050268W WO 2016164973 A1 WO2016164973 A1 WO 2016164973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connecting end
- rod
- male
- female connecting
- coupling
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 65
- 238000010168 coupling process Methods 0.000 title claims abstract description 65
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 65
- 239000012530 fluid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003245 coal Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 230000013011 mating Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
Definitions
- the present disclosure relates to an assembly for connecting rods or rod segments such as sucker rods together and is particularly related for applications in the oil and gas industry,
- a typical CSG well head is installed on a surface level and it is important to ensure that all produced water and gas is safely handled.
- the pumping mechanism typically comprises a sucker rod which rotates inside tubing and transmits power from an electric motor or a hydraulic motor at the well head to the downhole progressive cavity pump (PCP), which is located at a subsurface location, either just above or below the coals of interest.
- PCP downhole progressive cavity pump
- the PCP is operatively coupled to a surface power source by series of connected sucker rods.
- Each sucker rod may for example be machined from a solid rod approximately 25 to 30 feet long with a centra! diameter between 3 ⁇ 4" and 1 1 ⁇ 4" with a threaded pin and shoulder at either end of the rod.
- a "sucker rod coupling" known in the prior art typically comprises a cylindrically internally threaded member and is used to connect segments of sucker rod together to create an assembly called a "sucker rod string”.
- the sucker rod couplings are typically 4" long and have a larger outer diameter than the raised shoulders of the sucker rod.
- Sucker rod bars are manufactured from hot rolled alloy steel and the rod bars are machine straightened and cold drawn to the required size.
- the rod bar ends are hot forged according to API (American Petroleum Institute) designed sizes.
- the rods are then heat treated over the full length.
- the rods are normalized and tempered to the specified level or quenched and tempered to the required hardness and strength. Care is taken to achieve metallographic structure with no residual stresses in the rod.
- a sample specimen is cut from the heat treated material and is tested for ultimate tensile strength, yield strength and elongation.
- the rod is then again checked for straightness.
- the forged ends are properly aligned with its body. Rods are cleaned by shot-blasting to remove any scale and oxidation.
- the forged ends are machined on C.N.C. Lathe machines as per API dimensions and checked with API approved gauges.
- the sucker rod string is fed through a concentric tubing string consisting of 30 foot sections of tubing which are threaded together and typically have a nominal inside diameter between 23 ⁇ 4" and 41 ⁇ 2".
- the function of the sucker rod string is to actuate the downhoie pump to force fluid to the surface by pumping the fluid flow through the annulus formed by the sucker rod string and the tubing string.
- the PCP rotates the sucker rod string and reciprocating pumps typically move the sucker rod string up and down the axial direction of the sucker rod string.
- the torque anchor which fits against the inside of the casing.
- the anchor is positioned for preventing the tubing from being twisted out of place by the constant rotation of the sucker rod.
- the tailpipe pump intake which is designed for ensuring downhoie separation of gas and water, and prevents gas being pulled through the PCP.
- the lighter gas rises and is trapped between the tubing and the steel casing, while the heavier water falls to the bottom of the well and is pumped up inside the tubing string by the PCP during operation of the wellhead.
- a significant problem associated with the pumping operations involving subsurface pumps driven by rod strings is blockage of the subsurface pump.
- the subterranean water comprises suspended solids which tend to block the subsurface pump. This can have a significant effect on production and result in extended maintenance operations because the rod strings may need to be removed and in some cases, the subsurface pump may also need to be removed.
- the invention provides a coupling assembly for coupling a first rod member with a second rod member, the assembly comprising: a male connecting end of the first rod member being adapted for being received into a female connecting end of the second rod member; and a locking mechanism for preventing the first and second rod members from being uncoupled, the locking mechanism comprising a stop positioned in between the male connecting end and a locking member such that during use the locking member engages at least a part of the female connecting end and the stop thereby preventing the male connecting end from being withdrawn from the female connecting end.
- the invention provides a rod assembly comprising: a male connecting end and a female connecting end such that the male connecting end of the rod assembly is adapted for being received into the female connecting end of another of the rod assembly; and a locking mechanism comprising a stop positioned in between the male connecting end and a locking member such that during use the locking member engages at least a part of the stop and the female connecting end of the other rod assembly and thereby prevents the male connecting end from being withdrawn from the female connecting end.
- the invention provides a coupling assembly for coupling a first sucker rod with a second sucker rod, the assembly comprising: a male connecting end of the first sucker rod being adapted for being received into a female connecting end of the second sucker rod; and a locking mechanism for preventing the first and second sucker rods from being uncoupled, the locking mechanism comprising a stop positioned in between the male connecting end and a locking member such that during use the locking member engages at least a part of the female connecting end and the stop thereby preventing the male connecting end from being withdrawn from the female connecting end.
- the invention provides a coupling assembly for coupling a first coupling member with a second coupling member, the assembly comprising: a male connecting end of the first coupling member being adapted for being received into a female connecting end of the second coupling member; and
- a locking mechanism for preventing the first and second coupling members from being uncoupled, the locking mechanism comprising a stop positioned in between the male connecting end and a locking member such that during use the locking member engages at least a part of the female connecting end and the stop thereby preventing the male connecting end from being withdrawn from the female connecting end.
- a rod string (comprising a plurality of coupled rods), as described in previous sections, is driven by an electrical motor, located on the surface.
- the rod string is deployed in a downhole for driving a PCP pump that is located at a subsurface location.
- the sucker rod couplings known in the prior art comprises sucker rods having a male connector having a threaded mating surface comprising helical threads that typically threads into the female connector of another connected sucker rod.
- the sucker rod couplings of the prior art can only allow the rotation of the prior art sucker rod strings in a single direction (either clockwise or anti-clockwise), specifically the direction in which the coupling maintains the coupled configuration of the coupled sucker rods.
- the prior art couplings are therefore not suitable for allowing rotation of the sucker rod couplings in both directions.
- the present invention alleviates the shortcomings of the prior art sucker rod couplings by providing a coupling assembly and a pipe assembly with a configuration that allows the rotation of the rotation of a rod string (utilising the coupling or pipe assembly of the present invention) in a clockwise and a counter-clockwise direction without the risk of uncoupling the coupled rods (including sucker rods).
- the provision of the stop positioned in between the male connecting end and the locking member is also significant in that this arrangement stops or prevents the inadvertent withdrawal of the male connecting from the female connecting especially during periods of axial or reciprocal operation of the rod strings.
- the locking member is configured to engage the female connecting end and the stop and therefore prevents the male connecting end from being withdrawn from the female connecting end.
- At least a part of the male connecting end comprises an engaging surface adapted for engagement with an internal surface forming a cavity in the female connecting end, thereby preventing rotation of the male connecting end relative to the female connecting end.
- the said engagement may be provided by way of providing a rib and groove arrangement.
- at least one of the male and female connecting ends may comprise one or more ribs and the other of the male and female connecting ends may comprise one or more channels corresponding to said one or more ribs such that during use said one or more ribs are engaged in said corresponding one or more channels thereby preventing rotation of the male connecting end relative to the female connecting end.
- the ribs may for example extend along a direction of an imaginary longitudinal axis of the male and/or female connecting end.
- the ribs may be provided in the form of splines extending along the engaging surface of the male connecting end such that the splines are dimensioned to fit into the channels provided in the form of slots running along the internal walls of the cavity in the female connecting end.
- the ribs and the corresponding channels may extend along a direction of an imaginary longitudinal axis of the male and/or female connecting end.
- the locking member is adapted for being movable relative to the male and female connecting ends.
- the locking member may be provided in the form of a locking nut may be adapted for being movable along the imaginary axis of the connected rods or the rod assembly.
- the locking nut comprises female threads adapted for engaging the corresponding threads provided on the outer/peripheral wall/ of the female connecting end. In the locked configuration, the locking nut may receive and retain at least part of the female connecting end and the stop in an internal space defined by the nut.
- the locking nut may be provided in the form of a freewheeling nut that is adapted to be rotated and tightened independently without rotating the male and female connecting ends.
- the locking nut may also comprise one or more notches on a shoulder portion of the nut for seating at least a part of a tool adapted for imparting torque to the nut.
- the female connecting end may also comprise one or more additional notches for seating at least a part of a tool adapted for positioning or engaging at least a part of the female connecting end.
- the locking member of the present invention is no way limited to a locking nut and may be readily replaced by an alternative locking means adapted for engaging at least a part of the female connecting end and the stop for preventing the male connecting end from being withdrawn from the female connecting end.
- the stop comprises a protrusion extending outwardly in a lateral direction relative to an imaginary longitudinal axis of the male connecting end.
- the stop such as the protrusion may be provided with a raised profile relative to the male connecting end.
- the stop may be sufficiently profiled in the form of an annular profiled ring-shaped member positioned adjacent to the male connecting end such that in a coupled configuration, the profiled ring member is unable to be accommodated within the cavity formed by the female connecting end.
- the stop may be provided in the form of a stopping member formed integrally as a part of rod adjoining the male connecting end.
- Figure 1 is a sectional view of a first embodiment of the present invention in an uncoupled configuration.
- Figure 2 is a sectional view of the rod in accordance with the first embodiment.
- Figure 3 is a sectional view of two rods in a coupled configuration in accordance with the first embodiment.
- Figure 4 is a first perspective view of a coupling assembly comprising two rods in accordance with the first embodiment.
- Figure 5 is a second perspective view of a coupling assembly of two rods in a coupled configuration in accordance with the first embodiment.
- Figure 6 is a top-down view of the two rods in an uncoupled configuration in accordance with the first embodiment.
- Figure 7 is a side-on perspective view of the two rods in an uncoupled configuration in accordance with the first embodiment.
- Figure 8 is a perspective view of the coupling assembly depicting a coupled configuration in accordance with a second embodiment.
- Figure 9 is a top view of a coupling assembly depicting a coupled configuration in accordance with a second embodiment.
- a first embodiment of the present invention is provided in the form of a rod assembly, specifically a sucker rod 100 comprising a male connecting end 10 and a female connecting end 20.
- a plurality of sucker rods 100 such as a first sucker rod 100A may be coupled with a second sucker rod 100B in series by connecting or mating a male connecting end 10 of the first sucker rod 100A with a female connecting end 20 of another of the sucker rods, such as the second sucker rod 100B.
- the male connecting end 10 comprises a male connector portion 12 that is substantially cylindrical in shape which is matingly received in cavity 22 thereby engaging the male connecting end 10 of sucker rod 100A with female connecting end 20 of sucker rod 100B.
- the male connector portion 12 is provided with a plurality of engaging ribs in the form of splines 14 running along a direction of the longitudinal axis of the rod 100.
- the cavity 22 in the female connecting end 20 is provided in the form of a hollow cylinder with grooves 24 that are adapted for receiving and retaining the plurality of splines 14 in an engaged or mated configuration (as shown particularly clearly in Figure 3).
- Providing the ribs or splines 14 that engage with the grooves or channels 24 in the said configuration allows the rotation of the coupled sucker rods 100A and 100B in both clockwise and anticlockwise direction without uncoupling the rods 100A and 100B during rotational operation in either direction.
- the scope of the present invention is in no way limited by the number of vertical splines 14 (and corresponding grooves 24) provided in the said rod or coupling assembly.
- a locking mechanism 30 is also provided for preventing the male connecting end 10 from being withdrawn from the female connecting 20 during routine operation of the coupled rod strings comprising a series of coupled rods 100.
- the locking mechanism 30 comprises a stop in the form of an annular step 32 provided adjacent to the male connecting portion 12.
- a locking member in the form of a locking nut 34 is provided for deploying the locking mechanism.
- the locking nut 34 comprises female threads 36 that engage with male threads 26 provided on an outer peripherally located wall of the female connecting end 20.
- the locking nut 34 is freely movable along the spine of the rod 100 and can be rotated independently relative to the rod 100.
- the male connecting portion 12 is received into the cavity 22 of the female connecting end 20 by aligning the splines 14 into the corresponding grooves 24.
- This mated configuration of the connected rods 100A and 100B is subsequently locked by deploying the locking mechanism 30 (as particularly evident in Figure 3).
- the locking nut 34 is pushed along the spine of the rod 100 until an underside portion 35 of the locking nut 34 abuts or contacts the step member 32. This results in the annular step 32 being positioned in between the female connecting end 20 and the locking nut 34.
- engagement of the female threads 36 on the locking nut 34 with the male threads 26 (on the outer wall of the female connecting end 20) by a tightening operation may be carried out by engaging the notch 37 provided on the head of the locking nut 34 for tightening and securing the coupling between rods 100A and 100B.
- FIG. 8 and 9 a second embodiment of the coupled rod assembly is illustrated.
- a sucker rod 200 with a diameter of 1 inches and comprising a male connecting end 10 and a female connecting end 20 is provided.
- a plurality of sucker rods 200 such as a first sucker rod 200A may be coupled with a second sucker rod 200B in series by connecting or mating the male connecting end 10 of the first sucker rod 200A with a female connecting end 20 of another of the sucker rods, such as the second sucker rod 200B.
- the male connecting end 10 comprises a male connector portion 12 that is substantially cylindrical in shape which is matingly received in cavity 22 thereby engaging the male connecting end 10 of sucker rod 100A with female connecting end 20 of sucker rod 100B.
- the male connector portion 12 is provided with a plurality of engaging splines 14 running along a direction of the longitudinal axis of the rod 200.
- the splines 14 are provided in the form of fourteen teeth like projections extending along the outer mating surface of the male connector portion.
- the major outer diameter (including the height of the splines or teeth) of the male connecting portion 12 is 1.25 inches.
- the minor outer diameter (without including the height of the splines or teeth) is 1.0625 inches.
- the cavity 22 in the female connecting end 20 is provided in the form of a hollow cylinder with grooves 24 that are adapted for receiving and retaining the plurality of splines 14 in an engaged or mated configuration (as shown particularly clearly in Figure 9).
- Providing the ribs or splines 14 that engage with the grooves or channels 24 in the said configuration allows the rotation of the coupled sucker rods 200A and 200B in both clockwise and anticlockwise direction without uncoupling the rods 200A and 200B during rotational operation in either direction.
- the present invention is in no way limited by the number of splines provided on the male connecting portion 12 or by the number of grooves provided on the female connecting portion 22.
- the scope of the present invention is in no way limited by the number of vertical splines 14 (and corresponding grooves 24) provided in the said rod or coupling assembly.
- the locking mechanism 30 prevents the male connecting end 10 from being withdrawn from the female connecting 20 during routine operation of the coupled rod strings comprising a series of coupled rods 200.
- the locking mechanism 30 comprises a stop in the form of an annular step 32 provided adjacent to the male connecting portion 12.
- a locking member in the form of a locking nut 34 is also provided for deploying the locking mechanism 30.
- the locking nut 34 comprises female threads 36 along an inner surface that engages with male threads 26 provided on an outer peripherally located wall of the female connecting end 20.
- the locking nut 34 is freely movable along the spine of the rod 200 and can be rotated independently relative to the rod 200.
- the male connecting portion 12 is received into the cavity 22 of the female connecting end 20 by aligning the splines 14 into the corresponding grooves 24.
- This mated configuration of the connected rods 200A and 200B is subsequently locked by deploying the locking mechanism 30 (as particularly evident in Figure 9).
- the locking nut 34 is pushed along the spine of the rod 200 until an underside portion 35 of the locking nut 34 abuts or contacts the step member 32. This results in the annular step 32 being positioned in between the female connecting end 20 and the locking nut 34.
- the locking nut 34 includes a notched portion 347 that is located at a head end of the locking nut 34.
- the provision of a notched portion 347 that includes a polygonal cross section allows the locking nut 34 to be easily engaged by a locking tool such as a wrench (not shown).
- the female connecting end 20 is also provided with a notched portion 247 for allowing the female connecting end 20 to be held in position while tightening the locking nut 34.
- the present invention is no way limited to sucker rods and covers rod assemblies such as pony rods, polished rods and other such rods that may be utilised in a manner as described throughout the specification.
- the present invention in at least some embodiments also encompasses coupling assemblies for coupling a rod to a subsurface pump or a pumping apparatus.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680022308.3A CN107614827A (en) | 2015-04-14 | 2016-04-12 | Shaft coupling |
CA2981982A CA2981982A1 (en) | 2015-04-14 | 2016-04-12 | A coupling |
AU2016247573A AU2016247573A1 (en) | 2015-04-14 | 2016-04-12 | A coupling |
US15/565,405 US20180128058A1 (en) | 2015-04-14 | 2016-04-12 | A coupling |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2015901325A AU2015901325A0 (en) | 2015-04-14 | A Coupling | |
AU2015901325 | 2015-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016164973A1 true WO2016164973A1 (en) | 2016-10-20 |
Family
ID=57125476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2016/050268 WO2016164973A1 (en) | 2015-04-14 | 2016-04-12 | A coupling |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180128058A1 (en) |
CN (1) | CN107614827A (en) |
AU (2) | AU2016247573A1 (en) |
CA (1) | CA2981982A1 (en) |
WO (1) | WO2016164973A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3825567A1 (en) * | 2019-11-18 | 2021-05-26 | Graco Minnesota Inc. | Sealed coupling with a locking nut for rigidly connecting a rotor of a progressive cavity pump to a universal joint |
US11661801B2 (en) * | 2019-07-11 | 2023-05-30 | Baker Hughes Oilfield Operations, Llc | Anti-rotation coupling for use in a downhole assembly |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017100356A1 (en) * | 2017-01-10 | 2018-07-12 | Gkn Driveline Deutschland Gmbh | shaft connection |
CN106639905B (en) * | 2017-01-24 | 2018-10-12 | 中国石油天然气集团公司 | Reducing coiled tubing docking facilities and its installation method and reducing oil pipe installation method |
US11162339B2 (en) * | 2020-03-03 | 2021-11-02 | Saudi Arabian Oil Company | Quick connect system for downhole ESP components |
CN111442143A (en) * | 2020-04-07 | 2020-07-24 | 中玮建设科技有限公司 | Fixing mechanism for building assembled energy-saving pipe |
WO2023122816A1 (en) * | 2021-12-29 | 2023-07-06 | Systems IP Pty Ltd | Universal connector |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1407327A (en) * | 1919-08-04 | 1922-02-21 | Walter D Giles | Coupling for sucker rods |
US1762057A (en) * | 1929-06-29 | 1930-06-03 | George C Gates | Coupling for drill rods |
US2070077A (en) * | 1935-04-17 | 1937-02-09 | Oscar M Davis | Coupling |
US4534585A (en) * | 1982-12-30 | 1985-08-13 | Mobil Oil Corporation | Pipe joint locking device |
CA2615294A1 (en) * | 2007-12-19 | 2009-06-19 | Stinger Wellhead Protection, Inc. | Threaded union for tubulars used in high-pressure fluid applications |
US20120088588A1 (en) * | 2009-06-11 | 2012-04-12 | Shandong Nine-Ring Petroleum Machinery Co., Ltd. | Sucker rod |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1507991A (en) * | 1919-10-14 | 1924-09-09 | Charles R Edwards | Tool joint |
US2033409A (en) * | 1934-08-06 | 1936-03-10 | Cleveland J Wilkinson | Oil well device |
JPH05280546A (en) * | 1992-04-02 | 1993-10-26 | Kobe Steel Ltd | Shaft coupling structure and shaft mounting/removing device |
IT1264422B1 (en) * | 1993-05-12 | 1996-09-23 | Agip Spa | JOINT FOR THE QUICK SEALING CONNECTION OF PIPES, PARTICULARLY SUITABLE FOR PETROLEUM PIPES |
NO310372B1 (en) * | 1999-08-02 | 2001-06-25 | Bakke Technology As | Shared coupling device with through bore |
US7793731B2 (en) * | 2004-06-22 | 2010-09-14 | Boyd Anthony R | Entry swivel apparatus and method |
JP2006274730A (en) * | 2005-03-30 | 2006-10-12 | Kajima Corp | Terminal pipe in tip receiving steel pipe |
CN2906034Y (en) * | 2006-06-09 | 2007-05-30 | 刘美英 | Anti-releasing device for sucker rod |
US7654341B2 (en) * | 2006-10-26 | 2010-02-02 | Tt Technologies, Inc. | Drill stem coupling and method for a directional drill |
WO2010142038A1 (en) * | 2009-06-12 | 2010-12-16 | Atlas Copco Thiessen | Drill rod locking assembly |
US9127517B2 (en) * | 2009-12-23 | 2015-09-08 | Expert E & P Consultants, L.L.C. | Drill pipe connector and method |
US20150176341A1 (en) * | 2010-01-28 | 2015-06-25 | Sunstone Technologies, Llc | Tapered Spline Connection for Drill Pipe, Casing, and Tubing |
US20110180273A1 (en) * | 2010-01-28 | 2011-07-28 | Sunstone Technologies, Llc | Tapered Spline Connection for Drill Pipe, Casing, and Tubing |
US10030453B2 (en) * | 2014-11-11 | 2018-07-24 | Harrier Technologies, Inc. | Device for the connection of rods for rotational drive of a downhole pumping apparatus |
-
2016
- 2016-04-12 CN CN201680022308.3A patent/CN107614827A/en active Pending
- 2016-04-12 AU AU2016247573A patent/AU2016247573A1/en active Pending
- 2016-04-12 CA CA2981982A patent/CA2981982A1/en not_active Abandoned
- 2016-04-12 AU AU2016102441A patent/AU2016102441A4/en not_active Ceased
- 2016-04-12 US US15/565,405 patent/US20180128058A1/en not_active Abandoned
- 2016-04-12 WO PCT/AU2016/050268 patent/WO2016164973A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1407327A (en) * | 1919-08-04 | 1922-02-21 | Walter D Giles | Coupling for sucker rods |
US1762057A (en) * | 1929-06-29 | 1930-06-03 | George C Gates | Coupling for drill rods |
US2070077A (en) * | 1935-04-17 | 1937-02-09 | Oscar M Davis | Coupling |
US4534585A (en) * | 1982-12-30 | 1985-08-13 | Mobil Oil Corporation | Pipe joint locking device |
CA2615294A1 (en) * | 2007-12-19 | 2009-06-19 | Stinger Wellhead Protection, Inc. | Threaded union for tubulars used in high-pressure fluid applications |
US20120088588A1 (en) * | 2009-06-11 | 2012-04-12 | Shandong Nine-Ring Petroleum Machinery Co., Ltd. | Sucker rod |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11661801B2 (en) * | 2019-07-11 | 2023-05-30 | Baker Hughes Oilfield Operations, Llc | Anti-rotation coupling for use in a downhole assembly |
EP3825567A1 (en) * | 2019-11-18 | 2021-05-26 | Graco Minnesota Inc. | Sealed coupling with a locking nut for rigidly connecting a rotor of a progressive cavity pump to a universal joint |
US11371502B2 (en) | 2019-11-18 | 2022-06-28 | Graco Minnesota Inc. | Sealed drive for connecting progressive cavity pump rotors to universal joints |
Also Published As
Publication number | Publication date |
---|---|
CN107614827A (en) | 2018-01-19 |
AU2016247573A1 (en) | 2017-11-02 |
US20180128058A1 (en) | 2018-05-10 |
CA2981982A1 (en) | 2016-10-20 |
AU2016102441A4 (en) | 2020-05-14 |
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