WO2012069858A3 - Downhole drilling tool and bearing assembly - Google Patents

Downhole drilling tool and bearing assembly Download PDF

Info

Publication number
WO2012069858A3
WO2012069858A3 PCT/GB2011/052348 GB2011052348W WO2012069858A3 WO 2012069858 A3 WO2012069858 A3 WO 2012069858A3 GB 2011052348 W GB2011052348 W GB 2011052348W WO 2012069858 A3 WO2012069858 A3 WO 2012069858A3
Authority
WO
WIPO (PCT)
Prior art keywords
drive
drive element
downhole drilling
bearing assembly
housing
Prior art date
Application number
PCT/GB2011/052348
Other languages
French (fr)
Other versions
WO2012069858A2 (en
Inventor
Philip Head
Original Assignee
Philip Head
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 Philip Head filed Critical Philip Head
Publication of WO2012069858A2 publication Critical patent/WO2012069858A2/en
Publication of WO2012069858A3 publication Critical patent/WO2012069858A3/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/003—Bearing, sealing, lubricating details
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

A downhole drilling or reaming tool comprises a drive assembly including a reciprocating hydraulically powered drive element arranged in a housing which is fixed to the lower end of a tubing string, for example, a drillstring or a casing string. The drive element and other parts of the drive assembly may be made from a durable material or alternatively from a sacrificial material which is drilled or otherwise removed after installation of the casing string, leaving the housing in position. The drive element may drive two counter-rotating elements whereby the tool is torque balanced and avoids applying torque to the tubing string. The drive element may comprise a reciprocating mass which imparts percussive action to the or each rotating element and cutting head. In a further aspect the invention provides a more convenient bearing assembly and method of manufacture wherein a plurality of bearing balls are retained in holes in a cylindrical sleeve by deformation of marginal portions of the holes.
PCT/GB2011/052348 2010-11-26 2011-11-28 Downhole drilling tool and bearing assembly WO2012069858A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201020098A GB201020098D0 (en) 2010-11-26 2010-11-26 Rotating impacting tool
GB1020098.8 2010-11-26

Publications (2)

Publication Number Publication Date
WO2012069858A2 WO2012069858A2 (en) 2012-05-31
WO2012069858A3 true WO2012069858A3 (en) 2013-11-07

Family

ID=43500712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/052348 WO2012069858A2 (en) 2010-11-26 2011-11-28 Downhole drilling tool and bearing assembly

Country Status (2)

Country Link
GB (1) GB201020098D0 (en)
WO (1) WO2012069858A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9416597B2 (en) * 2012-12-14 2016-08-16 Baker Hughes Incorporated Compressible bearing assembly for downhole tools and methods of operation of same
RU2602245C1 (en) 2012-12-21 2016-11-10 Хэллибертон Энерджи Сервисиз, Инк. Anti-revers mechanism for hydraulic downhole engine
WO2015099666A1 (en) * 2013-12-23 2015-07-02 Halliburton Energy Services Inc. In-line tortional vibration mitigation mechanism for oil well drilling assembly
GB201411097D0 (en) * 2014-06-22 2014-08-06 Xl Technology Ltd 329 - octo-lateral system
CN107386981B (en) * 2017-08-14 2023-05-12 中国石油大学(北京) Bit nipple

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159281A1 (en) * 2006-07-29 2009-06-25 Herrera Derek F Running bore-lining tubulars
US20090200082A1 (en) * 2008-02-08 2009-08-13 Bui Huy D Methods and apparatus for drilling directional wells by percussion method
WO2010043757A1 (en) * 2008-10-13 2010-04-22 Oy Atlas Copco Rotex Ab Method and drilling apparatus for down-the-hole drilling

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE408035T1 (en) 1999-02-11 2008-09-15 Hardide Ltd TUNGSTEN CARBIDE COATINGS AND METHOD FOR THE PRODUCTION THEREOF

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159281A1 (en) * 2006-07-29 2009-06-25 Herrera Derek F Running bore-lining tubulars
US20090200082A1 (en) * 2008-02-08 2009-08-13 Bui Huy D Methods and apparatus for drilling directional wells by percussion method
WO2010043757A1 (en) * 2008-10-13 2010-04-22 Oy Atlas Copco Rotex Ab Method and drilling apparatus for down-the-hole drilling

Also Published As

Publication number Publication date
GB201020098D0 (en) 2011-01-12
WO2012069858A2 (en) 2012-05-31

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