WO2020092194A1 - Threaded connector having metal-to-metal seal - Google Patents
Threaded connector having metal-to-metal seal Download PDFInfo
- Publication number
- WO2020092194A1 WO2020092194A1 PCT/US2019/058264 US2019058264W WO2020092194A1 WO 2020092194 A1 WO2020092194 A1 WO 2020092194A1 US 2019058264 W US2019058264 W US 2019058264W WO 2020092194 A1 WO2020092194 A1 WO 2020092194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connector member
- connector
- curvilinear
- pin
- metal
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- XBWAZCLHZCFCGK-UHFFFAOYSA-N 7-chloro-1-methyl-5-phenyl-3,4-dihydro-2h-1,4-benzodiazepin-1-ium;chloride Chemical compound [Cl-].C12=CC(Cl)=CC=C2[NH+](C)CCN=C1C1=CC=CC=C1 XBWAZCLHZCFCGK-UHFFFAOYSA-N 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 8
- 230000013011 mating Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 241000370685 Arge Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
Definitions
- the present disclosure relates generally to connectors for tubular members and, more particularly, to threaded connectors having metal-to-metal seals.
- a large diameter pipe known as surface casing may he installed into the tipper section of the borehole.
- Surface casing stabilizes the walls of the borehole near the surface where they are more apt to cave in.
- the pipe On holes drilled in offshore waters from platforms, or jack-ups, the pipe may be extended from the ocean floor to the deck of the drilling structure and is often known as a marine riser. In such case, the riser may be an extension of the surface easing and serves to prevent entry of sea water into the borehole.
- FIG, 1 Is a longitudinal cross section of a pin connector in accordance with certain embodiments of the present disclosure
- FIG, 2 is a longitudinal cross section of a box connector suitable for reception of the pin connector of FIG. 1 in accordance with certain embodiments of the present disclosure
- FIG. 3 is a partial longitudinal cross section of the box and pin configuration shown in FIGS. 1 and 2 shown in the fully engaged position in accordance with certain embodiments of the present disclosure
- FIG. 4 is an exploded, Isolated view of a region of the threaded connection of FIG. 3 showing a recess in the box connector adjacent to a pin nose in accordance with certain embodiments of the present disclosure
- FIG, 5 is a graph showing the relationship of the nose seal contact pressure as a function of distance from the nose for a sphere-on-cone seal configuration in accordance with certain embodiments of the present disclosure.
- Threaded connectors may have a male connector (sometimes called a pin) and a female connector (sometimes called a box). Connection may be made by screwing the male connector into the female connector. Additionally, the male connector may have an exterior curvilinear sealing surface and the female connector may have a corresponding interior curvilinear sealing surface. Upon connection, a metal-to-metal seal may be formed by the contacting of the exterior curvilinear sealing surface of the male connector mid the interior curvilinear sealing surface of the female connector.
- the interior and exterior curvilinear surfaces may be essentially the same shape. This, in some embodiments, would allow a male connector and female to have* flush or near flush metal-to-metal seal.
- previous designs may show both connectors having a frustoconical shape.
- the frustoeonieai male connector may have a flush connection with the firustoconical female connector.
- the connectors may be located at the ends of longitudinal members, which may be pipe segments in some embodiments, that can be connected by way of the connectors.
- longitudinal members may exert considerable stress on the metal-to-metal seal in the connection because such a longitudinal member may act effectively as a lever on the connection.
- tile transverse motion of a longitudinal member may apply significant contact stresses to the metal-to-metal seal, potentially causing the seal or connection to deform and create a leak.
- the disclosed embodiments address the deficiencies in previous connector designs by providing different shapes for the contacting curvilinear sealing surfaces of the first and second connecting members, which in some embodiments may be male and female connectors Unlike previous designs where die male and female connectors may have matching surfaces, the disclosed embodiments here may have mismatched surfaces.
- the male connector may have a frustohem ispheriea! sealing surface while the female connector may have a frustoconical sealing surface.
- die male connector may be fmstospherical and the female connector may be frustoconical.
- the male connector may be frustotoroidal and the female connector may be frustoconical.
- the surfaces may be reversed, /.a, the male connector may have the frustoconical surface and the female member may have die other surface.
- the toms may be of the ring, horn, or die spindle type.
- die spindle type of ' torus may be used because it has large radius of curvature on the male connector sealing surface.
- die shapes used for the male and female connectors may be any shape if the shape is in the form of a frustum of a three-dimensional geometric object
- die shapes used for the male and female connectors may be a shape selected from the group consisting of frustoconical surfaces, fmstocylmdrical surfaces. trustoellipsoidal surfaces, frustospheroidal surfaces, fhtstoheniispherical surfaces, frustoparabolic surfaces, frustohyperbotic surfaces, Ifutstoroidal surfaces, and ; blends thereof ⁇
- the male connector may have a nose located at the tip of the mate connector.
- this nose may be referred to as a pin nose.
- the interior surface of the female connector may be designed to engage the nose of the male connector upon connection.
- die nose of the male connector may be relatively thin and flexible, thereby allowing the male connector to move slightly in a transverse direction after fb!I connection to the female connector.
- the disclosed mismatched male and female curvilinear surfaces, along with the flexible male connector nose, may facilitate a more reliable threaded connection having a metal-to-metal seal.
- die flexible nose and mismatched surfaces working together may provide for a wide parabolic distribution of contact stresses along die mating sealing surfaces,
- the flexible nose may provide for rapid-pressure energization of the metal-to-metal seal when the connection may be under either internal or external pressure.
- the flexibility of the male connector nose may cause the curvilinear sealing surface of the mate connector to rotate or“roll ⁇ ’ to a slightly different position on the curvilinear seating surface of the female connector.
- fee contact footprint of the contacting curvilinear sealing surface may widen or generally increase in size significantly.
- Such increase in the size of the footprint may result in spreading the contact stresses over a larger surface area, the larger surface area being the larger footprint.
- the magnitude of contact pressure increases substantially with Increasing internal or external pressure, resulting in a net increase of said contact stresses per unit surface area of the metail-to-metal seal.
- this pressurization process is caused by the flexibility of the pin nose and the favorable shape of the contact stress profile.
- This same flexibility of the pin nose and favorable metal-to-metal sealing configuration may also cause the contact stresses to increase and the contact footprint to widen when the connection is subjected to tension and bending loads, also increasing the contact stresses per unit surface area,
- the flexibility of the pin nose may be facilitated by an annular groo ve on the surface of the pin and near the pin nose.
- the thinness of the pin, near the pin nose, due to the annular groove may allow the pin nose to flex.
- the annular groove may contain an O-King » which may form a seal against an interior surface of the box connector* which in turn may serve as a secondary seal to prevent leakage.
- the pin nose may be stiff or rigid and not be able to flex in the manner above described.
- the above disclosure has the advantage of having a wider area of lower contact stresses at make-up and breakout, which may significantly reduce the propensity for galling during make- up and breakout of the threaded connection. Also, the wider area of contact stress decreases the risk of leakage at the sealing interface due to preexisting surface damage. Lower contact stresses at make-up leads to reduced car eliminated galling potential and lower make-up torques.
- the above disclosure has the further advantage that applied tension loads further increase and widen the contact footprint.
- the above disclosure has the further advantage that the flexibility of the pin nose and the favorable shape of the contact stress profile allow significant loosening of machining tolerances, reducing both manufacturing cost and rejection rates.
- the assembly 10 includes a first connector member, which may be a male connector in some embodiments, and a second connector member, whieh may be a female connector in some embodiments.
- the male connector may be a pin 12 and the female connector may be box 13.
- pin 12 is shown generally in alignment with and ready for insertion into a box 13.
- pin 12 may be attached to a longitudinal member 14.
- Longitudinal member 14 may be tubular in shape and may have a bore 18.
- Pin 12 may also be tubular and may have s hore 20 which may be an extension of bore 18 of longitudinal member ⁇ 4, which in turn may be cylindrical for casing applications.
- An external makeup shoulder 24 may have a larger diameter than longitudinal member 14. Following makeup shoulder 24 may be a cylindrical upper guide section 26.
- Guide section 26 may provide a flat surface (when viewed in longitudinal cross section) and may serve to guide pin 12 into a female connector, which may be a box 13, in a manner hereinafter described.
- section 28 Near the bottom of pi n 12 may be a section 28 having a multiplicity of threads 30 cut thereon.
- section 28 may be tapered such that threads 30 taper from upper base 32 down toward lower base 34.
- any suitable taper may be used.
- section 28 may be tapered or shaped to permit threaded section 28 to travel substantially into the mating threaded section in box 13 (described bdow) before thread engagement begins.
- Pin curvil inear sealing surface 36 may be of a three-dimensional shape that may facilitate a more reliable threaded connection by way of a metaRo-metal seal witii the box curvilinear sealing .surface 74 (described herein below) *
- box 13 3 ⁇ 4 threaded mating with pm 12 ofFIG. 1 is shown.
- box 13 may be attached to a longitudinal member 52.
- Longitudinal member 52 may be ttibtiiar in shape and «nay have a bore 62.
- Box 13 may also be tubular and may have a bore 66 which may be an extension of bore 62 of longitudinal member 52, which in him may he cylindrical for casing applications
- tubular end section 56 which may be larger in diameter than longitudinal member 52.
- Section 56 may have, in its interior, threads for mating withthreads 30 of pin 12 (described hereinafter below).
- the transition from longitudinal member 52 to end section 56 may define an annular shoulder 60, which may be useful in supporting the longitudinal member 52, and other like members connected thereto, when a tubular string may he being made up, for example *
- longitudinal member 52 may have a bore 62, Bore 62 may be in communication with a bore 66 in box 13. Near longitudinal member 52, bore 66 may be defined by a wall 68 and a curvilinear sealing surface 74.
- Box curvilinear sealing Surface 74 may provide a surface for receiving pm curvilinear sealing surface 36 on pin 12 and may be of a three-dimensional shape that may facilitate a more reliable threaded connection by way of a metabto-metal Seal with the pin curvilinear sealing surface 36 (described below).
- Toward the upper end of box 13 may bean opening 80 which may be defined by a wall haying a multiplicity of threads 81, the purpose of which may be to allow the pin to enter the box, thereby allowing for make-up of the pin and box.
- Threads 81 may be of the same pitch as threads 30 mi threaded section 28 on pin 12.
- Threaded opening 80 may be also tapered or shaped to matingfy receive threaded section 28 of pin : 12.
- threaded ripening 80 may have a small er-d1 ⁇ 2 meter tower base 82 adjacent to a recess 83 and may have a larger- diameter upper base 84 toward the top end of box 13, Recess 83 may be a threaded-relief groove that also functions as a stress redirection groove.
- Nearest the top end of box 13 may be art internal opening 85 defined by wall 86 and having a beveled tip 87 that is sized to receive upper guide section 26 of pin 12.
- the combination of guide section 26 and wail 86 acts to guide the threaded section 28 on pin 12 and threaded opening 80 on box 13 together without cross-threading. Similar guidance on the opposite end of threaded section 28 and threaded opening 80 may be provided by the combination of pin curvilinear sealing surface 36 and box curvilinear sealing surface 74.
- the threads 30 on threaded section 28 of pin 12 and threads 81 in threaded opening 80 in box 13 may have a pitch of about four threads per inch. As those of ordinary skill in tile art will appreciate, any suitable pitch may be utilized.
- the tower side 90 of each thread 30 may be beveled downwardly.
- tiie upper thread side 92 may be also beveled downwardly and inwardly.
- the box threads 81 may be complementary to the pin threads 30, so that the two sets of threads mesh with back-slanted mating surfaces 92 of the pin threads on back-slanted mating surfaces 94 of the box threads and beveled lower aide 90 on beveled upper edge 96.
- the wedge shapes may provide thread security not only down the length of the joint but also across the width of the joint. This may prevent the joint from laiiihg due to expansion Of the box diameter during stress, a condition known as "belling/’
- pin 12 and box 13 are shown in a fully engaged position.
- pin curvilinear sealing surface 36 may be received by box curvilinear sealing surface 74.
- curvilinear sealing surface 36 is a fhistospherical surface and curvilinear seating surface 74 is a frustoconieal.
- the pin 12 may contain an annular groove 78 that comprises a ring of empty space due to the removal of material from the pin.
- the prosenee of the annular groove 78 creates a section of the pin 12, near the pin nose 38 in FIG. 4, that is thinner than surrounding sections. This thinness allows die pin nose 38 to be flexible and thus provide for the rapid-pressure energization of the metal-to-metal seal as described above.
- the annular groove 78 may function also to receive therein a backup 0-ring seal 76 that is sized to fit groove 78- ' the 0-ring seal 76 in groove 78 may serve as a back-up seal to the primary metal-to-metal seal between surfaces 36 and 74.
- Groove 78 may be dove-tailed to hold the backup O-ring 76 in place.
- the depth of annular groove 78 may be slightly less than the diameter of the backup O-ring cross section so that the backup O-ring 76 will provide a pressure seal against surface 79 of pin 12.
- the backup O-ring 76 is a backup seal that engages the cylindrical sur&ce 70 in the box above the -box’s frustoconical metal sealing surface 74.
- the primary seal against internal pressure is provided by the metal -te-metal contact between the frustohemispherical surface 36 on the piii and the frustoconical surface 74 cm the box.
- This metal-to-mctal seal configuration provides a gas-tight and water-tight seat Locking engagement of threads 30 on pin 12 with threads 81 on box 13 may he provided by the wedging of the upper faces 92 of threads 30 with the lower faces 94 of threads 81. Ihe mutual engagement of these wedge-shaped threads may prevent box 13 from expanding and thereby may prevent thread disengagement due to such expanding of the box since any tendency of the box to expand results in the pin threads pulling radially inwardly on the box threads.
- recess 83 may be a threaded-relief groove that also functions as a stress redirection groove.
- Shoulder 73 may be located beneath box curvilinear sealing surface 74,
- a second Oaring: 108 may be located in groove 110 to exclude external pressure.
- O-ring 1:08 may serve ax a seawater exclusion seal.
- second O-ring 108 is not required for the disclosed embodiments to operate as intended,
- pin curvilinear sealing surface 36 is shown forming a metai-to-metal seal with box curvilinear sealing surface 74.
- the main limitation on the travel of pi n 12 into box 13 may be the seating of the pin end against the box internal shoulder 73. This leaves a gap 990 between pin nose 38 and box shoulder 73.
- the pin contacts internal shoulder 7.1, thus closing gap 990, only under conditions of high compressive loads.
- the size of gap 990 between the end of the pin and shoulder 73 may be chosen in order to maximize the compressive load capacity of the connection.
- the male connector may exert contact stresses on the female connector or vice versa.
- said contact stresses may result from movement by longitudinal member 14 and/or longitudinal member 52 (See FIG. 1 and FIG. 2).
- longitudinal members 14 and 52 may be pipe segments connected by way of pin 12 and box 1.3,
- Such contact stresses if!arge enough in magnitude, can cause deformation in the components of first and second connecting members, which in some embodiments may be pin 12 and box 13. Said deformation may result tit fluid leaks through the connection.
- the disclosed embodiments address these deficiencies by providing different shapes for die disclosed curvilinear sealing surfaces, which in some embodiments may be the pin curvilinear sealing surface 36 and box curvilinear sealing surface 74.
- the disclosed embodiments here may have mismatched surfaces.
- a male connector shown in one embodiment in FIG. 4 as pin 12
- a female connector shown in one embodiment m FIG. 4 as box 13
- the male connector may be frustospherical and die female connector may be frustoconieal.
- the male connector may be fru&fotoroidal and the female connector may be frustoconieal.
- the surfaces may be reversed, /. ⁇ ?., the male connector may have the frustoconieal surface and the female member may have the other surface profiles discussed above.
- the torus may be of the ring, horn, or spindle type. In such embodiments, the spindle type of torus may be used because it has large radius of curvature on the male connector sealing surface.
- the shapes used for the male and female connectors may be any shape If the shape is in the form of a frustum of a three-dimensional geometric object
- FIG. 4 also depicts pin nose 38.
- pin nose 38 may be relatively thin and flexible, thereby allowing the male connector, here shown in an embodiment as pin 12, to move slightly in a transverse d irection after full connection totfre female connector, here shown in an embodiment as box 13.
- the flexible nose may provide for rapid- pressure energization of the metal-to-metal seal when the connection may be under ei ther internal or external pressure (described herein below).
- FIG. 4 also depicts a recess 10(1 in box 13 adjacent to box shoulder 73 and engaged pin nose 38.
- recess 100 may be located below box curvilinear sealing surface 74 and pin curvilinear sealing surface 36.
- Recess 100 is an undercut radius in the box shoulder 73 that reduces the stress in this corner.
- FIG. 5 is a graph 120 showing the results of an analysis performed on a pin and box connection in accordance with the present disclosure.
- Graph 120 serves as an exemplary mathematical description of the rapid-pressure energization of the metal-to-metal seal that may be caused by the mismatched sealing surfaces and a flexible pin nose.
- Graph 120 shows the contact pressure 122 in a metal-to-metal seal as a function of distance ⁇ 24 from the pin nose 38 for a particular embodiment where the exterior curvilinear surfeceof a male connector is frustospherical and interior curvilinear surface of a female connector is frustoconieal.
- the multiple trend lines 136 illustrate the wide parabolic distribution of contact stresses along fee mating frustospherical and frustoconieal surfaces.
- the results of fee test illustrated In graph 120 show a wide parabolic range of contact stresses. As disclosed above, one can see from the graph feat if contact pressure increases (illustrated by fee height of the inverted parabola), then fee contact footprint increases io sfcae (illustrated by the width of the inverted parabola).
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Joints With Pressure Members (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112021005696-3A BR112021005696A2 (en) | 2018-10-29 | 2019-10-28 | threaded connector with metal-to-metal seal |
SG11202102852VA SG11202102852VA (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
US17/288,997 US20210404265A1 (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
GB2104036.5A GB2591051B (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
MX2021004919A MX2021004919A (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal. |
NO20210444A NO20210444A1 (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862751987P | 2018-10-29 | 2018-10-29 | |
US62/751,987 | 2018-10-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020092194A1 true WO2020092194A1 (en) | 2020-05-07 |
Family
ID=70464590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2019/058264 WO2020092194A1 (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
Country Status (7)
Country | Link |
---|---|
US (1) | US20210404265A1 (en) |
BR (1) | BR112021005696A2 (en) |
GB (1) | GB2591051B (en) |
MX (1) | MX2021004919A (en) |
NO (1) | NO20210444A1 (en) |
SG (1) | SG11202102852VA (en) |
WO (1) | WO2020092194A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3141226A1 (en) * | 2022-10-21 | 2024-04-26 | Akwel Sweden Ab | Male connector for a fluid connection of a fluid transfer circuit. |
US20240142026A1 (en) * | 2022-11-01 | 2024-05-02 | Saudi Arabian Oil Company | Pipe connection systems in oil and gas applications |
Citations (5)
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US20100283239A1 (en) * | 2007-12-28 | 2010-11-11 | Vallourec Mannesmann Oil & Gas France | Sealed threaded tubular connection which is resistant to successive pressure loads |
CN101975035A (en) * | 2010-10-18 | 2011-02-16 | 西安交通大学 | Airtight seal connecting structure of special threaded buckle for oil sleeve pipe |
US20120175846A1 (en) * | 2011-01-11 | 2012-07-12 | Baker Hughes Incorporated | Threaded device with metal to metal seal and method |
US9273521B2 (en) * | 2009-11-20 | 2016-03-01 | Vallourec Oil And Gas France | Threaded connection |
EP3128119A1 (en) * | 2015-08-05 | 2017-02-08 | Hydril Company | Threaded tubular connection |
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JPS5211765B2 (en) * | 1972-03-31 | 1977-04-02 | ||
EP0087557B1 (en) * | 1982-02-27 | 1985-05-15 | MANNESMANN Aktiengesellschaft | Pipe connection for metal pipes |
US4648627A (en) * | 1984-01-18 | 1987-03-10 | Dril-Quip, Inc. | Stabbing connector |
EP0229861B1 (en) * | 1986-01-23 | 1988-08-10 | MANNESMANN Aktiengesellschaft | Coupling for oil and gas field pipes |
US6056324A (en) * | 1998-05-12 | 2000-05-02 | Dril-Quip, Inc. | Threaded connector |
IT1318179B1 (en) * | 2000-07-17 | 2003-07-23 | Dalmine Spa | INTEGRAL THREADED JOINT FOR PIPES. |
US6478344B2 (en) * | 2000-09-15 | 2002-11-12 | Abb Vetco Gray Inc. | Threaded connector |
FR2913746B1 (en) * | 2007-03-14 | 2011-06-24 | Vallourec Mannesmann Oil & Gas | SEALED TUBULAR THREAD SEAL FOR INTERNAL AND EXTERNAL PRESSURE SOLUTIONS |
CN101883944B (en) * | 2007-10-03 | 2012-07-25 | 住友金属工业株式会社 | Screw-threaded joint for steel pipe |
WO2009060552A1 (en) * | 2007-11-08 | 2009-05-14 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
-
2019
- 2019-10-28 GB GB2104036.5A patent/GB2591051B/en active Active
- 2019-10-28 NO NO20210444A patent/NO20210444A1/en unknown
- 2019-10-28 MX MX2021004919A patent/MX2021004919A/en unknown
- 2019-10-28 WO PCT/US2019/058264 patent/WO2020092194A1/en active Application Filing
- 2019-10-28 BR BR112021005696-3A patent/BR112021005696A2/en unknown
- 2019-10-28 US US17/288,997 patent/US20210404265A1/en active Pending
- 2019-10-28 SG SG11202102852VA patent/SG11202102852VA/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100283239A1 (en) * | 2007-12-28 | 2010-11-11 | Vallourec Mannesmann Oil & Gas France | Sealed threaded tubular connection which is resistant to successive pressure loads |
US9273521B2 (en) * | 2009-11-20 | 2016-03-01 | Vallourec Oil And Gas France | Threaded connection |
CN101975035A (en) * | 2010-10-18 | 2011-02-16 | 西安交通大学 | Airtight seal connecting structure of special threaded buckle for oil sleeve pipe |
US20120175846A1 (en) * | 2011-01-11 | 2012-07-12 | Baker Hughes Incorporated | Threaded device with metal to metal seal and method |
EP3128119A1 (en) * | 2015-08-05 | 2017-02-08 | Hydril Company | Threaded tubular connection |
Also Published As
Publication number | Publication date |
---|---|
MX2021004919A (en) | 2021-06-18 |
BR112021005696A2 (en) | 2021-06-22 |
NO20210444A1 (en) | 2021-04-12 |
GB2591051A (en) | 2021-07-14 |
GB2591051B (en) | 2023-03-01 |
GB202104036D0 (en) | 2021-05-05 |
SG11202102852VA (en) | 2021-04-29 |
US20210404265A1 (en) | 2021-12-30 |
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