NO20021630L - Drill string element with bearings - Google Patents

Drill string element with bearings

Info

Publication number
NO20021630L
NO20021630L NO20021630A NO20021630A NO20021630L NO 20021630 L NO20021630 L NO 20021630L NO 20021630 A NO20021630 A NO 20021630A NO 20021630 A NO20021630 A NO 20021630A NO 20021630 L NO20021630 L NO 20021630L
Authority
NO
Norway
Prior art keywords
drill string
bearings
string element
breakages
drilling
Prior art date
Application number
NO20021630A
Other languages
Norwegian (no)
Other versions
NO20021630D0 (en
Inventor
Robert Gordon Kidd
Original Assignee
Internat Tubular Services 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 Internat Tubular Services Ltd filed Critical Internat Tubular Services Ltd
Publication of NO20021630L publication Critical patent/NO20021630L/en
Publication of NO20021630D0 publication Critical patent/NO20021630D0/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
    • E21B17/10—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)
  • Adornments (AREA)
  • Rolling Contact Bearings (AREA)
  • Harvester Elements (AREA)
  • Drilling Tools (AREA)
  • Surgical Instruments (AREA)
  • Toys (AREA)
  • Earth Drilling (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.
NO20021630A 1999-10-13 2002-04-05 Drill string element with bearings NO20021630D0 (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 (2)

Publication Number Publication Date
NO20021630L true NO20021630L (en) 2002-04-05
NO20021630D0 NO20021630D0 (en) 2002-04-05

Family

ID=10862585

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20021630A NO20021630D0 (en) 1999-10-13 2002-04-05 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"
US9810030B2 (en) 2013-06-03 2017-11-07 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
ATE256817T1 (en) 2004-01-15
NO20021630D0 (en) 2002-04-05
AU7544900A (en) 2001-04-23
WO2001027434A3 (en) 2001-10-11
EP1226329A2 (en) 2002-07-31
EP1226329B1 (en) 2003-12-17
GB9924114D0 (en) 1999-12-15
WO2001027434A2 (en) 2001-04-19
DE60007349D1 (en) 2004-01-29

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application