NO990757D0 - FremgangsmÕte og apparat for Õ etablere en magnetisk pol for retningsbestemmelse - Google Patents

FremgangsmÕte og apparat for Õ etablere en magnetisk pol for retningsbestemmelse

Info

Publication number
NO990757D0
NO990757D0 NO990757A NO990757A NO990757D0 NO 990757 D0 NO990757 D0 NO 990757D0 NO 990757 A NO990757 A NO 990757A NO 990757 A NO990757 A NO 990757A NO 990757 D0 NO990757 D0 NO 990757D0
Authority
NO
Norway
Prior art keywords
magnetic
establishing
magnetic pole
directional determination
deployed
Prior art date
Application number
NO990757A
Other languages
English (en)
Other versions
NO990757L (no
Inventor
Angus Jamieson
Original Assignee
Tech 21 Ltd
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
Priority claimed from GBGB9617372.9A external-priority patent/GB9617372D0/en
Priority claimed from GBGB9627008.7A external-priority patent/GB9627008D0/en
Priority claimed from GBGB9706993.4A external-priority patent/GB9706993D0/en
Application filed by Tech 21 Ltd filed Critical Tech 21 Ltd
Publication of NO990757D0 publication Critical patent/NO990757D0/no
Publication of NO990757L publication Critical patent/NO990757L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/38—Testing, calibrating, or compensating of compasses
    • 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
    • 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
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S33/00—Geometrical instruments
    • Y10S33/01—Magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Magnetic Variables (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
NO990757A 1996-08-19 1999-02-18 FremgangsmÕte og apparat for Õ etablere en magnetisk pol for retningsbestemmelse NO990757L (no)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9617372.9A GB9617372D0 (en) 1996-08-19 1996-08-19 Underwater magnetic observatory
GBGB9627008.7A GB9627008D0 (en) 1996-12-28 1996-12-28 Magnetic survey equipment & procedure
GBGB9706993.4A GB9706993D0 (en) 1997-04-05 1997-04-05 Remote magnetic observatory
PCT/GB1997/002216 WO1998007958A1 (en) 1996-08-19 1997-08-19 Method and apparatus for providing a magnetic direction reference

Publications (2)

Publication Number Publication Date
NO990757D0 true NO990757D0 (no) 1999-02-18
NO990757L NO990757L (no) 1999-04-16

Family

ID=27268440

Family Applications (1)

Application Number Title Priority Date Filing Date
NO990757A NO990757L (no) 1996-08-19 1999-02-18 FremgangsmÕte og apparat for Õ etablere en magnetisk pol for retningsbestemmelse

Country Status (7)

Country Link
US (1) US6227310B1 (no)
EP (1) EP0918920B1 (no)
AT (1) ATE228201T1 (no)
AU (1) AU4021197A (no)
DE (1) DE69717280D1 (no)
NO (1) NO990757L (no)
WO (1) WO1998007958A1 (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212476B1 (en) * 1998-05-14 2001-04-03 Baker Hughes Incorporated Apparatus to measure the earth's local gravity and magnetic field in conjunction with global positioning attitude determining
US6508316B2 (en) 1998-05-14 2003-01-21 Baker Hughes Incorporated Apparatus to measure the earth's local gravity and magnetic field in conjunction with global positioning attitude determination
DE19946587A1 (de) * 1999-09-29 2001-04-12 Eurodrill Gmbh Consulting Engi Vorrichtung zum Richtungsbohren
CA2291545C (en) * 1999-12-03 2003-02-04 Halliburton Energy Services, Inc. Method and apparatus for use in creating a magnetic declination profile for a borehole
US6871410B1 (en) 2004-02-24 2005-03-29 Robert J. Le Jeune Autonomous apparatus and method for acquiring borehole deviation data
US9535182B2 (en) 2009-03-09 2017-01-03 Ion Geophysical Corporation Marine seismic surveying with towed components below water surface
US9389328B2 (en) 2009-03-09 2016-07-12 Ion Geophysical Corporation Marine seismic surveying with towed components below water's surface
US8593905B2 (en) 2009-03-09 2013-11-26 Ion Geophysical Corporation Marine seismic surveying in icy or obstructed waters
US9354343B2 (en) 2009-03-09 2016-05-31 Ion Geophysical Corporation Declination compensation for seismic survey
US8881414B2 (en) * 2009-08-17 2014-11-11 Magnum Drilling Services, Inc. Inclination measurement devices and methods of use
US9297249B2 (en) * 2011-06-29 2016-03-29 Graham A. McElhinney Method for improving wellbore survey accuracy and placement
US9804288B2 (en) 2014-05-16 2017-10-31 Baker Hughes, A Ge Company, Llc Real-time, limited orientation sensor auto-calibration
CN115164859B (zh) * 2022-06-17 2024-02-09 武汉天宸伟业煤安科技有限公司 一种定向仪的寻北定向方法及寻北定向系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472884A (en) * 1982-01-11 1984-09-25 Applied Technologies Associates Borehole azimuth determination using magnetic field sensor
JPS593374A (ja) * 1982-06-30 1984-01-10 Shimadzu Corp 海底磁力計
WO1985003269A1 (en) * 1984-01-17 1985-08-01 John Thomas Pado Remotely operated underwater vehicle
US4909336A (en) * 1988-09-29 1990-03-20 Applied Navigation Devices Drill steering in high magnetic interference areas
CA1321418C (en) * 1988-10-05 1993-08-17 Joseph C. Mcmillan Primary land arctic navigation system
CA2024061C (en) * 1990-08-27 2001-10-02 Laurier Emile Comeau System for drilling deviated boreholes
US5349531A (en) 1991-03-13 1994-09-20 Tokimec Inc. Navigation apparatus using a global positioning system
US5339246A (en) 1992-03-17 1994-08-16 Zexel Corporation Diahatsu-Nissan Apparatus for correcting vehicular compass heading with the aid of the global positioning system
US5534875A (en) * 1993-06-18 1996-07-09 Adroit Systems, Inc. Attitude determining system for use with global positioning system
JP3723999B2 (ja) * 1994-11-14 2005-12-07 カシオ計算機株式会社 方位表示制御装置
US5689445A (en) * 1996-04-05 1997-11-18 Rowe-Deines Instruments Incorporated Electronic compass and attitude sensing system

Also Published As

Publication number Publication date
US6227310B1 (en) 2001-05-08
EP0918920A1 (en) 1999-06-02
WO1998007958A1 (en) 1998-02-26
ATE228201T1 (de) 2002-12-15
AU4021197A (en) 1998-03-06
EP0918920B1 (en) 2002-11-20
DE69717280D1 (de) 2003-01-02
NO990757L (no) 1999-04-16

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FC2A Withdrawal, rejection or dismissal of laid open patent application