AU7544900A - Drill string member with bearings - Google Patents

Drill string member with bearings

Info

Publication number
AU7544900A
AU7544900A AU75449/00A AU7544900A AU7544900A AU 7544900 A AU7544900 A AU 7544900A AU 75449/00 A AU75449/00 A AU 75449/00A AU 7544900 A AU7544900 A AU 7544900A AU 7544900 A AU7544900 A AU 7544900A
Authority
AU
Australia
Prior art keywords
drill string
bearings
string member
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.)
Abandoned
Application number
AU75449/00A
Inventor
Robert Gordon Kidd
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.)
ITS SPECIALIST DRILLING TOOLS Ltd
Original Assignee
ITS SPECIALIST DRILLING TOOLS
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 ITS SPECIALIST DRILLING TOOLS filed Critical ITS SPECIALIST DRILLING TOOLS
Publication of AU7544900A publication Critical patent/AU7544900A/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

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.
AU75449/00A 1999-10-13 2000-10-06 Drill string member with bearings Abandoned AU7544900A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9924114.3A GB9924114D0 (en) 1999-10-13 1999-10-13 Drill pipe
GB9924114 1999-10-13
PCT/GB2000/003829 WO2001027434A2 (en) 1999-10-13 2000-10-06 Drill string member with bearings

Publications (1)

Publication Number Publication Date
AU7544900A true AU7544900A (en) 2001-04-23

Family

ID=10862585

Family Applications (1)

Application Number Title Priority Date Filing Date
AU75449/00A Abandoned AU7544900A (en) 1999-10-13 2000-10-06 Drill string member 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
CA2385443A1 (en) 2001-04-19
WO2001027434A3 (en) 2001-10-11
WO2001027434A2 (en) 2001-04-19
EP1226329A2 (en) 2002-07-31
NO20021630L (en) 2002-04-05
EP1226329B1 (en) 2003-12-17
GB9924114D0 (en) 1999-12-15
ATE256817T1 (en) 2004-01-15
DE60007349D1 (en) 2004-01-29
NO20021630D0 (en) 2002-04-05

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase