CA2366002A1 - Three-dimensional steering tool for controlled downhole extended-reach directional drilling - Google Patents

Three-dimensional steering tool for controlled downhole extended-reach directional drilling Download PDF

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Publication number
CA2366002A1
CA2366002A1 CA002366002A CA2366002A CA2366002A1 CA 2366002 A1 CA2366002 A1 CA 2366002A1 CA 002366002 A CA002366002 A CA 002366002A CA 2366002 A CA2366002 A CA 2366002A CA 2366002 A1 CA2366002 A1 CA 2366002A1
Authority
CA
Canada
Prior art keywords
section
steering
tool
inclination
rotary
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.)
Granted
Application number
CA002366002A
Other languages
French (fr)
Other versions
CA2366002C (en
Inventor
N. Bruce Moore
R. Ernst Krueger
Ronald E. Beaufort
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.)
WWT International Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2366002A1 publication Critical patent/CA2366002A1/en
Application granted granted Critical
Publication of CA2366002C publication Critical patent/CA2366002C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic 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
    • E21B44/005Below-ground automatic control systems
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/08Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/18Anchoring or feeding in the borehole
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling
    • E21B7/06Deflecting the direction of boreholes
    • E21B7/062Deflecting the direction of boreholes the tool shaft rotating inside a non-rotating guide travelling with the shaft
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling
    • E21B7/06Deflecting the direction of boreholes
    • E21B7/068Deflecting the direction of boreholes drilled by a down-hole drilling motor

Abstract

A steering tool (20) for extended-reach directional drilling in three dimensions comprises a mud pulse telemetry section (22), a rotary section (24), and a flex section (26) assembled as an integrated system in series along the length of the tool (20). The flex section (26) comprises a flexible drive shaft (120) and a deflection actuator for applying hydraulic pressure along the length of the shaft (120) for bending the shaft (120) when making inclination angle adjustments during steering. The rotary section (24) comprises a rotator housing coupled to the deflection housing for rotating the deflection housing for making azimuth angle adjustments during steering. The onboard mud pulse telemetry section (22) receives inclination and azimuth angle steering commands together with actual inclination and azimuth angle feedback signals during steering for use in controlling operation of the flex section (26) and rotary section (24) for steering the tool along a desired course. The steering tool (20) can change inclination and azimuth angles either simultaneously or incrementally while rotary drilling.
CA002366002A 1999-04-14 2000-04-14 Three-dimensional steering tool for controlled downhole extended-reach directional drilling Expired - Fee Related CA2366002C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US12919499P 1999-04-14 1999-04-14
US60/129,194 1999-04-14
US09/549,326 2000-04-13
US09/549,326 US6470974B1 (en) 1999-04-14 2000-04-13 Three-dimensional steering tool for controlled downhole extended-reach directional drilling
PCT/US2000/010045 WO2000061916A1 (en) 1999-04-14 2000-04-14 Three-dimensional steering tool for controlled downhole extended-reach directional drilling

Publications (2)

Publication Number Publication Date
CA2366002A1 true CA2366002A1 (en) 2000-10-19
CA2366002C CA2366002C (en) 2006-08-22

Family

ID=26827335

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002366002A Expired - Fee Related CA2366002C (en) 1999-04-14 2000-04-14 Three-dimensional steering tool for controlled downhole extended-reach directional drilling

Country Status (6)

Country Link
US (4) US6470974B1 (en)
AU (1) AU4459900A (en)
CA (1) CA2366002C (en)
GB (1) GB2366582B (en)
NO (1) NO323033B1 (en)
WO (1) WO2000061916A1 (en)

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Also Published As

Publication number Publication date
WO2000061916A1 (en) 2000-10-19
NO20014993L (en) 2001-12-14
GB2366582B (en) 2003-12-24
US6470974B1 (en) 2002-10-29
US6942044B2 (en) 2005-09-13
NO20014993D0 (en) 2001-10-12
CA2366002C (en) 2006-08-22
NO323033B1 (en) 2006-12-27
GB0123904D0 (en) 2001-11-28
US20040173381A1 (en) 2004-09-09
GB2366582A (en) 2002-03-13
US20040084219A1 (en) 2004-05-06
US6708783B2 (en) 2004-03-23
US20030051919A1 (en) 2003-03-20
AU4459900A (en) 2000-11-14

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