GB1275032A - Drill pipe - Google Patents

Drill pipe

Info

Publication number
GB1275032A
GB1275032A GB290571A GB290571A GB1275032A GB 1275032 A GB1275032 A GB 1275032A GB 290571 A GB290571 A GB 290571A GB 290571 A GB290571 A GB 290571A GB 1275032 A GB1275032 A GB 1275032A
Authority
GB
United Kingdom
Prior art keywords
drill pipe
pipe couplings
joint
heath
sherwood
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.)
Expired
Application number
GB290571A
Inventor
Lyle William Hokanson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heath and Sherwood Drilling Ltd
Original Assignee
Heath and Sherwood Drilling Ltd
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 Heath and Sherwood Drilling Ltd filed Critical Heath and Sherwood Drilling Ltd
Publication of GB1275032A publication Critical patent/GB1275032A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)

Abstract

1275032 Pipe couplings; drill pipe couplings HEATH & SHERWOOD DRILLING Ltd 21 Jan 1971 [31 March 1970] 2905/71 Headings F2G and F2U [Also in Division E1] A steel drill pipe has internally upset joint sections 14, 15 with bevelled shoulders 18, 17, 20, 21 to prevent the joint bulging under torque, and smooth contours 23, 24 to facilitate passage of a wireline core barrel therethrough. The bevel angle may be 30 degrees. An "0"- ring seal may be accommodated in a groove 22.
GB290571A 1970-03-31 1971-01-21 Drill pipe Expired GB1275032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA78710 1970-03-31

Publications (1)

Publication Number Publication Date
GB1275032A true GB1275032A (en) 1972-05-24

Family

ID=4086558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB290571A Expired GB1275032A (en) 1970-03-31 1971-01-21 Drill pipe

Country Status (2)

Country Link
CA (1) CA863785A (en)
GB (1) GB1275032A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990011455A1 (en) * 1989-03-28 1990-10-04 Wallis Industries Pty. Ltd. Coupling
WO1994005893A1 (en) * 1992-08-28 1994-03-17 Hendrik Corporaal Drill string coupling
AU668216B2 (en) * 1992-08-28 1996-04-26 Camstar Nominees Pty Ltd Drill string coupling

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064224A (en) * 1989-03-08 1991-11-12 Baroid Technology, Inc. Oil field tubular connection
US4946201A (en) * 1989-03-08 1990-08-07 Baroid Technology, Inc. Oil field tubular connection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990011455A1 (en) * 1989-03-28 1990-10-04 Wallis Industries Pty. Ltd. Coupling
WO1994005893A1 (en) * 1992-08-28 1994-03-17 Hendrik Corporaal Drill string coupling
AU668216B2 (en) * 1992-08-28 1996-04-26 Camstar Nominees Pty Ltd Drill string coupling

Also Published As

Publication number Publication date
CA863785A (en) 1971-02-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee