ATE256817T1 - DRILL STRING ELEMENT WITH BEARINGS - Google Patents

DRILL STRING ELEMENT WITH BEARINGS

Info

Publication number
ATE256817T1
ATE256817T1 AT00964521T AT00964521T ATE256817T1 AT E256817 T1 ATE256817 T1 AT E256817T1 AT 00964521 T AT00964521 T AT 00964521T AT 00964521 T AT00964521 T AT 00964521T AT E256817 T1 ATE256817 T1 AT E256817T1
Authority
AT
Austria
Prior art keywords
drill string
bearings
string element
breakages
drilling
Prior art date
Application number
AT00964521T
Other languages
German (de)
Inventor
Robert Patrick Appleton
Original Assignee
Appleton Robert P
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 Appleton Robert P filed Critical Appleton Robert P
Application granted granted Critical
Publication of ATE256817T1 publication Critical patent/ATE256817T1/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)
  • Rolling Contact Bearings (AREA)
  • Adornments (AREA)
  • Harvester Elements (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Toys (AREA)
  • Earth Drilling (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.
AT00964521T 1999-10-13 2000-10-06 DRILL STRING ELEMENT WITH BEARINGS ATE256817T1 (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
ATE256817T1 true ATE256817T1 (en) 2004-01-15

Family

ID=10862585

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00964521T ATE256817T1 (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
DE60007349D1 (en) 2004-01-29
NO20021630L (en) 2002-04-05
CA2385443A1 (en) 2001-04-19
EP1226329A2 (en) 2002-07-31
AU7544900A (en) 2001-04-23
NO20021630D0 (en) 2002-04-05
EP1226329B1 (en) 2003-12-17
WO2001027434A2 (en) 2001-04-19
WO2001027434A3 (en) 2001-10-11
GB9924114D0 (en) 1999-12-15

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties