GB9924114D0 - Drill pipe - Google Patents

Drill pipe

Info

Publication number
GB9924114D0
GB9924114D0 GBGB9924114.3A GB9924114A GB9924114D0 GB 9924114 D0 GB9924114 D0 GB 9924114D0 GB 9924114 A GB9924114 A GB 9924114A GB 9924114 D0 GB9924114 D0 GB 9924114D0
Authority
GB
United Kingdom
Prior art keywords
drill pipe
drill string
breakages
drilling
wear
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.)
Ceased
Application number
GBGB9924114.3A
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
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
Priority to GBGB9924114.3A priority Critical patent/GB9924114D0/en
Publication of GB9924114D0 publication Critical patent/GB9924114D0/en
Priority to DE60007349T priority patent/DE60007349D1/en
Priority to PCT/GB2000/003829 priority patent/WO2001027434A2/en
Priority to AU75449/00A priority patent/AU7544900A/en
Priority to AT00964521T priority patent/ATE256817T1/en
Priority to CA002385443A priority patent/CA2385443A1/en
Priority to EP00964521A priority patent/EP1226329B1/en
Priority to NO20021630A priority patent/NO20021630L/en
Ceased 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)
  • Rolling Contact Bearings (AREA)
  • Adornments (AREA)
  • Toys (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Surgical Instruments (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.
GBGB9924114.3A 1999-10-13 1999-10-13 Drill pipe Ceased GB9924114D0 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GBGB9924114.3A GB9924114D0 (en) 1999-10-13 1999-10-13 Drill pipe
DE60007349T DE60007349D1 (en) 1999-10-13 2000-10-06 DRILL STRING ELEMENT WITH BEARINGS
PCT/GB2000/003829 WO2001027434A2 (en) 1999-10-13 2000-10-06 Drill string member with bearings
AU75449/00A AU7544900A (en) 1999-10-13 2000-10-06 Drill string member with bearings
AT00964521T ATE256817T1 (en) 1999-10-13 2000-10-06 DRILL STRING ELEMENT WITH BEARINGS
CA002385443A CA2385443A1 (en) 1999-10-13 2000-10-06 Drill string member with bearings
EP00964521A EP1226329B1 (en) 1999-10-13 2000-10-06 Drill string member with bearings
NO20021630A NO20021630L (en) 1999-10-13 2002-04-05 Drill string element with bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9924114.3A GB9924114D0 (en) 1999-10-13 1999-10-13 Drill pipe

Publications (1)

Publication Number Publication Date
GB9924114D0 true GB9924114D0 (en) 1999-12-15

Family

ID=10862585

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB9924114.3A Ceased GB9924114D0 (en) 1999-10-13 1999-10-13 Drill pipe

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) NO20021630L (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
DE60007349D1 (en) 2004-01-29
WO2001027434A2 (en) 2001-04-19
WO2001027434A3 (en) 2001-10-11
NO20021630D0 (en) 2002-04-05
NO20021630L (en) 2002-04-05
AU7544900A (en) 2001-04-23
EP1226329B1 (en) 2003-12-17
EP1226329A2 (en) 2002-07-31
ATE256817T1 (en) 2004-01-15

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)