NO20093497L - Styrbart bor - Google Patents

Styrbart bor

Info

Publication number
NO20093497L
NO20093497L NO20093497A NO20093497A NO20093497L NO 20093497 L NO20093497 L NO 20093497L NO 20093497 A NO20093497 A NO 20093497A NO 20093497 A NO20093497 A NO 20093497A NO 20093497 L NO20093497 L NO 20093497L
Authority
NO
Norway
Prior art keywords
drill bit
inclination
elements
accordance
rotary cutting
Prior art date
Application number
NO20093497A
Other languages
English (en)
Inventor
Murat Ocalan
Joachim Sihler
Partha Ganguly
Original Assignee
Schlumberger Technology Bv
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 Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO20093497L publication Critical patent/NO20093497L/no

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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • 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
    • E21B7/04—Directional drilling
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/024—Determining slope or direction of devices in the borehole
    • 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
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • 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
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/064—Deflecting the direction of boreholes specially adapted drill bits therefor
    • 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
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Det beskrives styrbare boresystemer for å muliggjøre en boring i samsvar med en forhåndsbestemt, tredimensjonal bane. Styringen kan oppnås ved hjelp av passive aktuatorer som krever liten eller ingen kraft. Eksempelvis kan det for helling eller skråstilling av borkronen i forhold til vektrøret brukes dempeelementer som kobler en borkrone til vektrøret. Alternativt kan det brukes roterende kutteelementer på borkronen for styring av kraften mellom borkronen og formasjonen på ulike aksiale lokasjoner. De passive elementene som brukes for styring av de roterende kutteelementenes helling eller rotasjon, aktiveres i samsvar med et visst mønster, eksempelvis geostasjonært, for derved å kunne oppnå et ønsket avvik for brønnboringen under boringen. En måte å oppnå dette på er å bruke feltsensitive materialer, eksempelvis magnetreologiske (MR) fluider som endrer viskositet som respons på et pålagt magnetfelt.
NO20093497A 2008-04-30 2009-12-09 Styrbart bor NO20093497L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/112,011 US7779933B2 (en) 2008-04-30 2008-04-30 Apparatus and method for steering a drill bit
PCT/US2009/042036 WO2009134842A2 (en) 2008-04-30 2009-04-29 Steerable bit

Publications (1)

Publication Number Publication Date
NO20093497L true NO20093497L (no) 2010-01-08

Family

ID=41255746

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20093497A NO20093497L (no) 2008-04-30 2009-12-09 Styrbart bor

Country Status (4)

Country Link
US (1) US7779933B2 (no)
GB (2) GB2462965B (no)
NO (1) NO20093497L (no)
WO (1) WO2009134842A2 (no)

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US10378283B2 (en) * 2016-07-14 2019-08-13 Baker Hughes, A Ge Company, Llc Rotary steerable system with a steering device around a drive coupled to a disintegrating device for forming deviated wellbores
US11396775B2 (en) 2016-07-14 2022-07-26 Baker Hughes, A Ge Company, Llc Rotary steerable drilling assembly with a rotating steering device for drilling deviated wellbores
US10731418B2 (en) 2016-07-14 2020-08-04 Baker Hughes, A Ge Company, Llc Rotary steerable drilling assembly with a rotating steering device for drilling deviated wellbores
US10633929B2 (en) 2017-07-28 2020-04-28 Baker Hughes, A Ge Company, Llc Self-adjusting earth-boring tools and related systems
CN107939291B (zh) * 2017-11-14 2019-07-09 中国科学院地质与地球物理研究所 一种旋转导向装置
CN108035677B (zh) * 2017-11-14 2019-08-16 中国科学院地质与地球物理研究所 一种混合式旋转导向装置
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US11199242B2 (en) * 2018-03-15 2021-12-14 Baker Hughes, A Ge Company, Llc Bit support assembly incorporating damper for high frequency torsional oscillation
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Also Published As

Publication number Publication date
GB0921410D0 (en) 2010-01-20
US20090272579A1 (en) 2009-11-05
GB201206331D0 (en) 2012-05-23
WO2009134842A2 (en) 2009-11-05
GB2462965B (en) 2012-06-13
GB2487022B (en) 2012-10-10
GB2487022A (en) 2012-07-04
GB2462965A (en) 2010-03-03
WO2009134842A3 (en) 2010-02-18
US7779933B2 (en) 2010-08-24

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Legal Events

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