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DE60007349D1 - DRILL STRING ELEMENT WITH BEARINGS - Google Patents

DRILL STRING ELEMENT WITH BEARINGS

Info

Publication number
DE60007349D1
DE60007349D1 DE60007349T DE60007349T DE60007349D1 DE 60007349 D1 DE60007349 D1 DE 60007349D1 DE 60007349 T DE60007349 T DE 60007349T DE 60007349 T DE60007349 T DE 60007349T DE 60007349 D1 DE60007349 D1 DE 60007349D1
Authority
DE
Germany
Prior art keywords
drill string
bearings
string element
breakages
drilling
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 - Lifetime
Application number
DE60007349T
Other languages
German (de)
Inventor
Patrick Appleton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE60007349D1 publication Critical patent/DE60007349D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • E21B17/1064—Pipes or rods with a relatively rotating sleeve
    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve

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)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Harvester Elements (AREA)
  • Adornments (AREA)
  • Rolling Contact Bearings (AREA)
  • Drilling Tools (AREA)
  • Surgical Instruments (AREA)
  • Earth Drilling (AREA)
  • Toys (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A drill string member comprising a body (1), and bearing races (5) around the circumference of the member. In certain embodiment, the presence of spherical bearings (25) on the surface of the member reduces radial torque and vertical drag to enable easier operation of the drill string. Advantages of one embodiment includes a reduction in the wear or breakages of the components used in drilling.
DE60007349T 1999-10-13 2000-10-06 DRILL STRING ELEMENT WITH BEARINGS Expired - Lifetime DE60007349D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9924114.3A GB9924114D0 (en) 1999-10-13 1999-10-13 Drill pipe
PCT/GB2000/003829 WO2001027434A2 (en) 1999-10-13 2000-10-06 Drill string member with bearings

Publications (1)

Publication Number Publication Date
DE60007349D1 true DE60007349D1 (en) 2004-01-29

Family

ID=10862585

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60007349T Expired - Lifetime DE60007349D1 (en) 1999-10-13 2000-10-06 DRILL STRING ELEMENT WITH BEARINGS

Country Status (8)

Country Link
EP (1) EP1226329B1 (en)
AT (1) ATE256817T1 (en)
AU (1) AU7544900A (en)
CA (1) CA2385443A1 (en)
DE (1) DE60007349D1 (en)
GB (1) GB9924114D0 (en)
NO (1) NO20021630D0 (en)
WO (1) WO2001027434A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0118270D0 (en) * 2001-07-27 2001-09-19 Internat Tubular Services Ltd "Tool string member with bearings"
WO2014194420A1 (en) * 2013-06-03 2014-12-11 Evolution Engineering Inc. Mud motor with integrated abrasion-resistant structure
CN103710015B (en) * 2013-12-25 2016-08-17 四川宝麟新材料科技有限公司 A kind of oil gas field volume increase emulsion-type drag reducer and preparation method thereof
CN110080693B (en) * 2018-01-25 2020-10-09 中国石油化工股份有限公司 Drilling tool centralizer
GB201803284D0 (en) 2018-02-28 2018-04-11 Kaseum Holdings Ltd Roller tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877395A (en) * 1928-05-14 1932-09-13 Emsco Derrick & Equip Co Antifriction device for drill pipe
GB8914882D0 (en) * 1989-06-29 1989-08-23 Red Baron Oil Tools Rental Drill string component
US5148876A (en) * 1991-06-10 1992-09-22 Prideco, Inc. Lightweight drill pipe
US5339910A (en) * 1993-04-14 1994-08-23 Union Oil Company Of California Drilling torsional friction reducer

Also Published As

Publication number Publication date
WO2001027434A2 (en) 2001-04-19
EP1226329A2 (en) 2002-07-31
NO20021630L (en) 2002-04-05
CA2385443A1 (en) 2001-04-19
EP1226329B1 (en) 2003-12-17
WO2001027434A3 (en) 2001-10-11
GB9924114D0 (en) 1999-12-15
AU7544900A (en) 2001-04-23
ATE256817T1 (en) 2004-01-15
NO20021630D0 (en) 2002-04-05

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Legal Events

Date Code Title Description
8332 No legal effect for de