GB769495A - Apparatus for determining the deviation of a bore hole from the vertical axis - Google Patents

Apparatus for determining the deviation of a bore hole from the vertical axis

Info

Publication number
GB769495A
GB769495A GB23263/54A GB2326354A GB769495A GB 769495 A GB769495 A GB 769495A GB 23263/54 A GB23263/54 A GB 23263/54A GB 2326354 A GB2326354 A GB 2326354A GB 769495 A GB769495 A GB 769495A
Authority
GB
United Kingdom
Prior art keywords
compass
pendulum
circuit
bore
potentiometer
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.)
Expired
Application number
GB23263/54A
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.)
Services Petroliers Schlumberger SA
Original Assignee
Societe de Prospection Electrique Schlumberger SA
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 Societe de Prospection Electrique Schlumberger SA filed Critical Societe de Prospection Electrique Schlumberger SA
Publication of GB769495A publication Critical patent/GB769495A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B47/0236—Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

769,495. Bore-hole clinometers. SOC. DE PROSPECTION ELECTRIQUE PROCEDES SCHLUMBERGER. Aug. 10, 1954 [Aug. 29, 1953], No. 23263/54. Class 97(2) A bore-hole clinometer comprises a compass which is subjected to vibrations to prevent the needle sticking, a member pivotable about the longitudinal axis of the clinometer and carrying an off-centre weight, and a pendulum pivoted on said member, the compass, pivotable member and pendulum each being arranged to operate circuit control member which members are connected in a circuit so as to record or indicate the angles of the said members. As shown, the casing 10 contains a vibrator 14 which, via the rod 16, imparts weak vibrations to the compass suspension 18. The compass mount 19 is suspended to remain horizontal at all angles of the casing 10 and the rotation of the compass needle is communicated to the arm of a potentiometer 22 the resistance of which is proportional to the position of the compass needle. A cylinder 23 is suspended on pivots 26, 27 and one side is weighted by an elongated bar (not shown), which when the apparatus is not vertical, rotates the cylinder 23 so that the off-centre weight assumes the lowest position. This rotation is communicated to the arm of a potentiometer 29 whose resistance is thus a measure of the direction of the plane containing the bore-hole axis. A pendulum 31 is pivoted at 30 to swing in a plane through the axis 26-27 and the longitudinal axis of the off-centre weight. The movements of the pendulum are communicated by rack and pinion gears 32 to a potentiometer 34, the resistance of which is thus a measure of the deviation of the borehole from the vertical. The potentiometers 23, 29 and 34 are connected into a circuit at the surface by leads 11, the circuit being arranged to operate recording or indicating instruments. Specification 644,466 is referred to.
GB23263/54A 1953-08-29 1954-08-10 Apparatus for determining the deviation of a bore hole from the vertical axis Expired GB769495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR769495X 1953-08-29

Publications (1)

Publication Number Publication Date
GB769495A true GB769495A (en) 1957-03-06

Family

ID=9184786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23263/54A Expired GB769495A (en) 1953-08-29 1954-08-10 Apparatus for determining the deviation of a bore hole from the vertical axis

Country Status (1)

Country Link
GB (1) GB769495A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088204A2 (en) * 1970-05-27 1972-01-07 Sagem Measuring instrument for borehole alignment - determining inclination and azimuth to very fine limits, and simple and reliable under all working conditions
WO2005083354A1 (en) * 2004-02-27 2005-09-09 Nigel Emlyn Williams Frictional pivots for gravitational alignment
CN108756850A (en) * 2018-05-23 2018-11-06 中国电建集团中南勘测设计研究院有限公司 A kind of device and localization method for Underwater Navigation
CN114109733A (en) * 2021-11-23 2022-03-01 北京华能新锐控制技术有限公司 Wind turbine generator system tower section of thick bamboo detection device
CN115822567A (en) * 2022-12-05 2023-03-21 北京中煤矿山工程有限公司 Inclination measuring device and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088204A2 (en) * 1970-05-27 1972-01-07 Sagem Measuring instrument for borehole alignment - determining inclination and azimuth to very fine limits, and simple and reliable under all working conditions
WO2005083354A1 (en) * 2004-02-27 2005-09-09 Nigel Emlyn Williams Frictional pivots for gravitational alignment
US7746467B2 (en) 2004-02-27 2010-06-29 Black & Decker Inc. Frictional pivots for gravitational alignment
CN108756850A (en) * 2018-05-23 2018-11-06 中国电建集团中南勘测设计研究院有限公司 A kind of device and localization method for Underwater Navigation
CN108756850B (en) * 2018-05-23 2023-10-31 中国电建集团中南勘测设计研究院有限公司 Device and method for underwater positioning
CN114109733A (en) * 2021-11-23 2022-03-01 北京华能新锐控制技术有限公司 Wind turbine generator system tower section of thick bamboo detection device
CN114109733B (en) * 2021-11-23 2023-10-27 北京华能新锐控制技术有限公司 Wind turbine generator system tower section of thick bamboo detection device
CN115822567A (en) * 2022-12-05 2023-03-21 北京中煤矿山工程有限公司 Inclination measuring device and method

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