CA2746081C - Commutateur de detection de position sans contact - Google Patents

Commutateur de detection de position sans contact Download PDF

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Publication number
CA2746081C
CA2746081C CA2746081A CA2746081A CA2746081C CA 2746081 C CA2746081 C CA 2746081C CA 2746081 A CA2746081 A CA 2746081A CA 2746081 A CA2746081 A CA 2746081A CA 2746081 C CA2746081 C CA 2746081C
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CA
Canada
Prior art keywords
pin
shaft
detection switch
position detection
rotor
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.)
Active
Application number
CA2746081A
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English (en)
Other versions
CA2746081A1 (fr
Inventor
Paul L. Camwell
Jili Liu
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.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada 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
Application filed by Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Publication of CA2746081A1 publication Critical patent/CA2746081A1/fr
Application granted granted Critical
Publication of CA2746081C publication Critical patent/CA2746081C/fr
Active legal-status Critical Current
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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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • 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
    • 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
    • G01D5/20—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 by varying inductance, e.g. by a movable armature
    • G01D5/204—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 by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
    • G01D5/2046—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 by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by a movable ferromagnetic element, e.g. a core

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Acoustics & Sound (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

La présente invention concerne un capteur de position qui peut être utilisé dans des environnements de forage haute pression, notamment dans des applications de mesure de fond en cours de forage. Ledit capteur comprend un premier élément auquel est couplée solidement au moins une broche facilement magnétisable, et un second élément auquel sont couplées solidement une ou plusieurs bobines. Les bobines comportent des fentes à travers lesquelles les broches peuvent se déplacer lorsque les éléments tournent les uns par rapport aux autres. Un montage de circuits détecte un changement de linductance dans les bobines lorsque les broches entrent dans les fentes ou en sortent. En conséquence, la position du premier élément par rapport au second peut être déterminée. Le capteur de position comprend deux parties principales : un agencement broche/bobine qui peut supporter une pression élevée et ne subit pas dusure, et un montage de circuits électroniques classique qui est protégé de la pression derrière une cloison.
CA2746081A 2008-06-06 2009-06-05 Commutateur de detection de position sans contact Active CA2746081C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12914708P 2008-06-06 2008-06-06
US61/129,147 2008-06-06
PCT/CA2009/000803 WO2009146560A1 (fr) 2008-06-06 2009-06-05 Commutateur de détection de position sans contact

Publications (2)

Publication Number Publication Date
CA2746081A1 CA2746081A1 (fr) 2009-12-10
CA2746081C true CA2746081C (fr) 2014-06-03

Family

ID=41397689

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2746081A Active CA2746081C (fr) 2008-06-06 2009-06-05 Commutateur de detection de position sans contact

Country Status (2)

Country Link
CA (1) CA2746081C (fr)
WO (1) WO2009146560A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787883A (zh) * 2010-03-01 2010-07-28 北京六合伟业科技有限公司 磁耦合通信的井下仪器
US8684093B2 (en) * 2010-04-23 2014-04-01 Bench Tree Group, Llc Electromechanical actuator apparatus and method for down-hole tools
US10261213B2 (en) 2017-06-07 2019-04-16 General Electric Company Apparatus and method for flexible gamma ray detectors
US11668190B2 (en) * 2021-10-15 2023-06-06 Halliburton Energy Services, Inc. Magnetically isolating feedthrough connector
CN120592612B (zh) * 2025-06-26 2025-11-21 西安思坦油气工程服务有限公司 一种石油勘探用测井装置及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739331A (en) * 1971-07-06 1973-06-12 Mobil Oil Corp Logging-while-drilling apparatus
US4333066A (en) * 1980-07-07 1982-06-01 The United States Of America As Represented By The Secretary Of The Army Position transducer
US4456943A (en) * 1982-05-24 1984-06-26 Ga Technologies Inc. Current sensing relay
CA1268052A (fr) * 1986-01-29 1990-04-24 William Gordon Goodsman Systeme de telemetrie de fond en cours de forage
GB0020363D0 (en) * 2000-08-18 2000-10-04 Russell Michael Detector asssemblies and methods
US8174929B2 (en) * 2007-07-02 2012-05-08 Schlumberger Technology Corporation Spindle for mud pulse telemetry applications

Also Published As

Publication number Publication date
WO2009146560A1 (fr) 2009-12-10
CA2746081A1 (fr) 2009-12-10

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