GB2591051A - Threaded connector having metal-to-metal seal - Google Patents
Threaded connector having metal-to-metal seal Download PDFInfo
- Publication number
- GB2591051A GB2591051A GB2104036.5A GB202104036A GB2591051A GB 2591051 A GB2591051 A GB 2591051A GB 202104036 A GB202104036 A GB 202104036A GB 2591051 A GB2591051 A GB 2591051A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connector member
- connector
- curvilinear
- die
- exterior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (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
Threaded connectors for tubular members having metal-to-metal seals are provided. The connectors have 'different shapes for the contact sealing surfaces of the first and second connectors, which may be male and female connectors. In particular, the contact sealing surfaces may have mismatched surface shapes. For example, the male connector may have a frustohemispherical sealing surface while the female connector may have a frustoconical sealing surface. The disclosed mismatched male and female curvilinear surfaces, along with the flexible male connector nose, facilitate a reliable threaded connection having a metal-to-metal seal. The mismatched surfaces may provide for a wide parabolic distribution of contact stresses along the metal-to-metal seal of the curvilinear sealing surfaces.
Claims (1)
- WHAT IS CLAIMED IS: t . A connector assembly comprising:1. a first connector member having an exterior curvilinear seating surface; 8 second connector member having an interior curvilinear sealing surface; wherein the first connector member is adapted to be received by the second connector member, allowing a connection to be formed; and wherein the exterior curvilinear seating surface and the interior curvilinear seating surface have portions with non-eompkmentary surface shapes.2. The connector assembly of claim 1 wherein: the interior and exterior curvilinear surfaces are selected from a group consisting of fmsloconicai surfaces, fiusfoeylindrieal surfaces, tirustoeilipsoidal surfaces, frustospheroidal surfaces, frustohemisphericai surfaces, frustopara hollo surfaces, frustohyperbolie surfaces, frutstoroidal surfaces, and blends thereof; and wherein one of die curvilinear sealing surfaces Is selected from the group and the other of the curvilinear surfaces is selected from the remaining members of tire group.3. The connector assembly of claim 1 wherein; the first connector member further comprises tapered external threads disposed on a section of the first connector member adjacent to the exterior curvilinear sealing surface; and the second connector member further comprises tapered internal threads disposed on a section of the second connector member adjacent to the interior curvilinear sealing surface, wherein die tapered external threads are complementary to (he tapered internal threads.4. The connector assembly of claim 3 wherein: the interior curvilinear scaling surface of the second connector member contains a recess adjacent to a nose of the first connector member when die first connector member is seated in the second connector member. 5. 'lire connector assembly of claim 3 wherein: the first connector member has a flexible nose that will allow the first connector member to rotate into a different orientation while seated inside of the second connector member. 6, The connector assembly of claim 5 wherein: the different orientation creates a new contact area between the interior curvilinear sealing surface and exterior curvilinear sealing surface; and surface contact stresses are exerted by a metai-to-melal seal in die contact area.7. The connector assembly of claim b wherein: the different orientation causes a rapid pressure-energization of die metal-to-metal seal When die connection is under either internal or external pressure: and wherein during the pressure-energization, the new contact area widens and the surface contact stresses increase in magnitude.8. The connector assembly of claim 1 wherein: the first connector member comprises a pin; and the second connector member comprises a box. 9. 'the connector assembly of claim 1 wherein: the first connector member is a pin connector comprising a pin nose and an annular groove on the exterior surface of the pin connector proximate die pin nose; and (he second connector is a box connector. i0. The connector assembly of claim 1 wherein: a gap in a direction parallel to an axis of the first and second connector members is present between an end of the first connector member and a shoulder of the second connector member.1 L A metliod comprising: receiving a first connector member into a second connector member; wherein the first connector member has an exterior curvilinear sealing surface and the second connector member has an interior curvilinear sealing surface; and wherein die exterior curvilinear sealing surface and the interior curvilinear sealing surface have portions with non-complementary surface shapes.12. The method of claim P wherein; the interior and exterior curvilinear surfaces ate selected from a group consisting of ffustoconicai surfaces, frustoeyfindrieai surfaces* frttstoellipsoidal surfaces* frostospheroidal surfaces, frustohemisphericai surfaces, fmstoparabolie Surfaces, frustohyperbolic surfaces, frutstoroUlal surfaces, and blends thereof; and wherein one of die curvilinear sealing surfaces is selected from the group and the other of the curvilinear surfaces is selected from the remaining members of die group.13. The method of claim 11 wherein: the first connector member further comprises tapered external threads disposed on a section of the first connector member adjacent to the exterior curvilinear seating surface; and the second connector member further comprises tapered internal threads disposed on a section of the second connector member adjacent to the interior curvilinear seating surface, wherein the tapered external threads are complementary to the tapered internal threads.14. Hie method of claim 13 wherein: the interior curvilinear sealing surface of die second connector member contains a recess adjacent to a nose Of the first connector member when the first connector member is seated in the second connector member»15. The method of claim 13 further comprising: allowingtbe first connector member to rotate into a different orientation while seated inside the second connector member via a flexible nose of the first connector member.16. The method of claim 15 further comprising: creating a new contact area between the interior curvilinear sealing surface and exterior curvilinear surface via the first connector member rotating into the different orientation; and exerting surface contact stresses via a metal-to-metal seal in the new contact area.17. The method of claim 16 further comprising: causing a rapid pressure-energization of the metal-io-melal seal when the connection is under either internal or external pressure; and during the pressure-energization, widening the new contact area and increasing a magnitude of the surface contact stresses.18. 73⁄4e method of claim 11 wherein; the first connector member comprises a pin; and the second connector member comprises a box.19. The method of claim 11 wherein: the first connector member is a pin connector comprising a pin nose and an annular groove on the exterior surface of the pin connector proximate the pin nose: and the second connector is a box connector.20. The method of claim 11 wherelm a gap in a direction parallel to an axis of the first and second connector members is present between an end of the first connector member mid a shoulder of the second connector member
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862751987P | 2018-10-29 | 2018-10-29 | |
| PCT/US2019/058264 WO2020092194A1 (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202104036D0 GB202104036D0 (en) | 2021-05-05 |
| GB2591051A true GB2591051A (en) | 2021-07-14 |
| GB2591051B GB2591051B (en) | 2023-03-01 |
Family
ID=70464590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2104036.5A Active GB2591051B (en) | 2018-10-29 | 2019-10-28 | Threaded connector having metal-to-metal seal |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20210404265A1 (en) |
| GB (1) | GB2591051B (en) |
| MX (1) | MX2021004919A (en) |
| MY (1) | MY208615A (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. |
| US12287048B2 (en) * | 2022-11-01 | 2025-04-29 | Saudi Arabian Oil Company | Pipe connection systems in oil and gas applications |
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 |
| 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 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| ATE36395T1 (en) * | 1986-01-23 | 1988-08-15 | Mannesmann Ag | PIPE CONNECTION 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 |
| JP5100755B2 (en) * | 2007-10-03 | 2012-12-19 | 住友金属工業株式会社 | Threaded joints for steel pipes |
| WO2009060552A1 (en) * | 2007-11-08 | 2009-05-14 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
| US8684419B2 (en) * | 2012-08-24 | 2014-04-01 | Vetco Gray Inc. | Tubular connector having a secondary shoulder |
| US20190072215A1 (en) * | 2017-09-05 | 2019-03-07 | Black Diamond Oilfield Rentals LLC | Rotary shoulder connections for threaded pipe connections |
-
2019
- 2019-10-28 GB GB2104036.5A patent/GB2591051B/en active Active
- 2019-10-28 MX MX2021004919A patent/MX2021004919A/en unknown
- 2019-10-28 MY MYPI2021001793A patent/MY208615A/en unknown
- 2019-10-28 SG SG11202102852VA patent/SG11202102852VA/en unknown
- 2019-10-28 NO NO20210444A patent/NO20210444A1/en unknown
- 2019-10-28 US US17/288,997 patent/US20210404265A1/en active Pending
- 2019-10-28 WO PCT/US2019/058264 patent/WO2020092194A1/en not_active Ceased
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 |
|---|---|
| MY208615A (en) | 2025-05-20 |
| BR112021005696A2 (en) | 2021-06-22 |
| US20210404265A1 (en) | 2021-12-30 |
| GB202104036D0 (en) | 2021-05-05 |
| MX2021004919A (en) | 2021-06-18 |
| WO2020092194A1 (en) | 2020-05-07 |
| NO20210444A1 (en) | 2021-04-12 |
| GB2591051B (en) | 2023-03-01 |
| SG11202102852VA (en) | 2021-04-29 |
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