GB9504151D0 - Position detection devices - Google Patents

Position detection devices

Info

Publication number
GB9504151D0
GB9504151D0 GBGB9504151.3A GB9504151A GB9504151D0 GB 9504151 D0 GB9504151 D0 GB 9504151D0 GB 9504151 A GB9504151 A GB 9504151A GB 9504151 D0 GB9504151 D0 GB 9504151D0
Authority
GB
United Kingdom
Prior art keywords
position detection
detection devices
devices
detection
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.)
Pending
Application number
GBGB9504151.3A
Other languages
English (en)
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.)
Baroid Technology Inc
Original Assignee
Baroid Technology Inc
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 Baroid Technology Inc filed Critical Baroid Technology Inc
Priority to GBGB9504151.3A priority Critical patent/GB9504151D0/en
Publication of GB9504151D0 publication Critical patent/GB9504151D0/en
Priority to EP96904185A priority patent/EP0811107A1/en
Priority to PCT/GB1996/000444 priority patent/WO1996027068A1/en
Priority to GB9717231A priority patent/GB2313446B/en
Priority to CA002213849A priority patent/CA2213849A1/en
Priority to AU48378/96A priority patent/AU690822C/en
Priority to NO974003A priority patent/NO974003L/no
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/147—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • 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
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Vehicle Body Suspensions (AREA)
  • Radar Systems Or Details Thereof (AREA)
GBGB9504151.3A 1995-03-02 1995-03-02 Position detection devices Pending GB9504151D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GBGB9504151.3A GB9504151D0 (en) 1995-03-02 1995-03-02 Position detection devices
EP96904185A EP0811107A1 (en) 1995-03-02 1996-02-29 Position detection devices
PCT/GB1996/000444 WO1996027068A1 (en) 1995-03-02 1996-02-29 Position detection devices
GB9717231A GB2313446B (en) 1995-03-02 1996-02-29 Position detection devices
CA002213849A CA2213849A1 (en) 1995-03-02 1996-02-29 Position detection devices
AU48378/96A AU690822C (en) 1995-03-02 1996-02-29 Position detection devices
NO974003A NO974003L (no) 1995-03-02 1997-09-01 Posisjonsdeteksjonsanordning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9504151.3A GB9504151D0 (en) 1995-03-02 1995-03-02 Position detection devices

Publications (1)

Publication Number Publication Date
GB9504151D0 true GB9504151D0 (en) 1995-04-19

Family

ID=10770488

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB9504151.3A Pending GB9504151D0 (en) 1995-03-02 1995-03-02 Position detection devices

Country Status (5)

Country Link
EP (1) EP0811107A1 (no)
CA (1) CA2213849A1 (no)
GB (1) GB9504151D0 (no)
NO (1) NO974003L (no)
WO (1) WO1996027068A1 (no)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108678B (en) * 1981-10-17 1985-09-11 Armstrong Patents Co Ltd Shock absorber or ram position sensing system
US4719419A (en) * 1985-07-15 1988-01-12 Harris Graphics Corporation Apparatus for detecting a rotary position of a shaft
DE3735066A1 (de) * 1987-10-16 1989-04-27 Bochumer Eisen Heintzmann Drucksensor
US5545983A (en) * 1992-03-02 1996-08-13 Seiko Epson Corporation Displacement sensor with temperature compensation by combining outputs in a predetermined ratio
US5311953A (en) * 1992-08-07 1994-05-17 Baroid Technology, Inc. Drill bit steering
US5318137A (en) * 1992-10-23 1994-06-07 Halliburton Company Method and apparatus for adjusting the position of stabilizer blades

Also Published As

Publication number Publication date
EP0811107A1 (en) 1997-12-10
CA2213849A1 (en) 1996-09-06
AU4837896A (en) 1996-09-18
AU690822B2 (en) 1998-04-30
NO974003D0 (no) 1997-09-01
NO974003L (no) 1997-10-31
WO1996027068A1 (en) 1996-09-06

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