WO2022180226A3 - Coupling for connecting downhole tubulars with reduced stress - Google Patents

Coupling for connecting downhole tubulars with reduced stress Download PDF

Info

Publication number
WO2022180226A3
WO2022180226A3 PCT/EP2022/054824 EP2022054824W WO2022180226A3 WO 2022180226 A3 WO2022180226 A3 WO 2022180226A3 EP 2022054824 W EP2022054824 W EP 2022054824W WO 2022180226 A3 WO2022180226 A3 WO 2022180226A3
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
screw thread
camber radius
downhole tubulars
thread
Prior art date
Application number
PCT/EP2022/054824
Other languages
French (fr)
Other versions
WO2022180226A2 (en
WO2022180226A9 (en
Inventor
Tomas Jansson
Anders Nordberg
Original Assignee
Sandvik Mining And Construction Tools Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sandvik Mining And Construction Tools Ab filed Critical Sandvik Mining And Construction Tools Ab
Priority to MX2023010039A priority Critical patent/MX2023010039A/en
Priority to CA3204030A priority patent/CA3204030A1/en
Priority to CN202280013911.0A priority patent/CN116888341A/en
Priority to US18/278,772 priority patent/US20240229567A9/en
Priority to BR112023017232A priority patent/BR112023017232A2/en
Priority to KR1020237026171A priority patent/KR20230145568A/en
Priority to EP22707764.1A priority patent/EP4298312A2/en
Priority to JP2023551739A priority patent/JP2024507382A/en
Priority to AU2022227201A priority patent/AU2022227201A1/en
Publication of WO2022180226A2 publication Critical patent/WO2022180226A2/en
Publication of WO2022180226A3 publication Critical patent/WO2022180226A3/en
Publication of WO2022180226A9 publication Critical patent/WO2022180226A9/en

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
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A coupling for connecting downhole tubulars, comprising a tubular body; a female coupling part; a male coupling part; and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body, wherein: the at least one thread has a thread-form including a crest, a root, and a pair of flanks, the crest and the root are each cambered about a respective first and second camber radius, Rb, Rb-T along the entire length of the thread-form, and each camber radius, Rb, Rb-T, is greater than an outer diameter of the coupling; the male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf; characterized in that: each camber radius (Rb, Rb-T) is between 700 - 1900 mm.
PCT/EP2022/054824 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress WO2022180226A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
MX2023010039A MX2023010039A (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress.
CA3204030A CA3204030A1 (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress
CN202280013911.0A CN116888341A (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress
US18/278,772 US20240229567A9 (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress
BR112023017232A BR112023017232A2 (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress
KR1020237026171A KR20230145568A (en) 2021-02-26 2022-02-25 Coupling for connecting stress-reduced downhole tubular sections
EP22707764.1A EP4298312A2 (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress
JP2023551739A JP2024507382A (en) 2021-02-26 2022-02-25 Connector for connecting downhole pipes with reduced stress
AU2022227201A AU2022227201A1 (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21159721.6 2021-02-26
EP21159721 2021-02-26

Publications (3)

Publication Number Publication Date
WO2022180226A2 WO2022180226A2 (en) 2022-09-01
WO2022180226A3 true WO2022180226A3 (en) 2022-12-29
WO2022180226A9 WO2022180226A9 (en) 2023-02-09

Family

ID=74844692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/054824 WO2022180226A2 (en) 2021-02-26 2022-02-25 Coupling for connecting downhole tubulars with reduced stress

Country Status (11)

Country Link
US (1) US20240229567A9 (en)
EP (1) EP4298312A2 (en)
JP (1) JP2024507382A (en)
KR (1) KR20230145568A (en)
CN (1) CN116888341A (en)
AU (1) AU2022227201A1 (en)
BR (1) BR112023017232A2 (en)
CA (1) CA3204030A1 (en)
CL (1) CL2023002496A1 (en)
MX (1) MX2023010039A (en)
WO (1) WO2022180226A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121862A (en) * 1977-04-06 1978-10-24 Exxon Production Research Company Pipe connection
US4588213A (en) * 1983-10-05 1986-05-13 Thread Technology International, Inc. Threaded pipe connection
EP0253789A2 (en) * 1986-07-15 1988-01-20 Sandvik Aktiebolag Threaded coupling for percussion drill rods
KR101616357B1 (en) * 2014-12-26 2016-04-28 주식회사 포스코 Connecting structure for pipeline
US10041307B2 (en) * 2015-01-22 2018-08-07 National Oilwell Varco, L.P. Balanced thread form, tubulars employing the same, and methods relating thereto
WO2019170436A1 (en) * 2018-03-09 2019-09-12 Sandvik Mining And Construction Tools Ab Coupling for connecting downhole tubulars
US10415322B2 (en) * 2011-09-13 2019-09-17 Vallourec Oil And Gas France Assembly for producing a threaded joint for the drilling and operation of hydrocarbon wells, and resulting threaded joint
US20200408048A1 (en) * 2018-03-09 2020-12-31 Sandvik Mining And Construction Tools Ab Connection for percussion drilling

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524155C2 (en) 2002-05-22 2004-07-06 Atlas Copco Secoroc Ab String drill string thread for striking rock drilling

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121862A (en) * 1977-04-06 1978-10-24 Exxon Production Research Company Pipe connection
US4588213A (en) * 1983-10-05 1986-05-13 Thread Technology International, Inc. Threaded pipe connection
EP0253789A2 (en) * 1986-07-15 1988-01-20 Sandvik Aktiebolag Threaded coupling for percussion drill rods
US10415322B2 (en) * 2011-09-13 2019-09-17 Vallourec Oil And Gas France Assembly for producing a threaded joint for the drilling and operation of hydrocarbon wells, and resulting threaded joint
KR101616357B1 (en) * 2014-12-26 2016-04-28 주식회사 포스코 Connecting structure for pipeline
US10041307B2 (en) * 2015-01-22 2018-08-07 National Oilwell Varco, L.P. Balanced thread form, tubulars employing the same, and methods relating thereto
WO2019170436A1 (en) * 2018-03-09 2019-09-12 Sandvik Mining And Construction Tools Ab Coupling for connecting downhole tubulars
US20200408048A1 (en) * 2018-03-09 2020-12-31 Sandvik Mining And Construction Tools Ab Connection for percussion drilling

Also Published As

Publication number Publication date
BR112023017232A2 (en) 2023-09-26
US20240133246A1 (en) 2024-04-25
WO2022180226A2 (en) 2022-09-01
KR20230145568A (en) 2023-10-17
WO2022180226A9 (en) 2023-02-09
CN116888341A (en) 2023-10-13
MX2023010039A (en) 2023-09-11
CA3204030A1 (en) 2022-09-01
JP2024507382A (en) 2024-02-19
US20240229567A9 (en) 2024-07-11
AU2022227201A1 (en) 2023-08-03
CL2023002496A1 (en) 2024-01-26
AU2022227201A9 (en) 2024-10-17
EP4298312A2 (en) 2024-01-03

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