[go: up one dir, main page]

GB1437125A - Well mapping apparatus and method - Google Patents

Well mapping apparatus and method

Info

Publication number
GB1437125A
GB1437125A GB3861073A GB3861073A GB1437125A GB 1437125 A GB1437125 A GB 1437125A GB 3861073 A GB3861073 A GB 3861073A GB 3861073 A GB3861073 A GB 3861073A GB 1437125 A GB1437125 A GB 1437125A
Authority
GB
United Kingdom
Prior art keywords
axis
borehole
gyro
tilt
output
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
GB3861073A
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.)
Applied Technology Associates Inc
Original Assignee
Applied Technology Associates 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 Applied Technology Associates Inc filed Critical Applied Technology Associates Inc
Priority to GB3861073A priority Critical patent/GB1437125A/en
Publication of GB1437125A publication Critical patent/GB1437125A/en
Expired legal-status Critical Current

Links

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
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
    • G01C19/38—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/40—Rotary gyroscopes for control by signals from a master compass, i.e. repeater compasses

Landscapes

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

Abstract

1437125 Measuring borehole inclination and tilt electrically: borehole clinometers APPLIED TECHNOLOGIES ASSOCIATES 15 Aug 1973 38610/73 Headings G1F and GIN Apparatus 12 for determining azimuth and tilt of a borehole or well comprises a rate of turn gyroscope 20 producing an output which varies as a function of azimuth orientation of the gyro relative to the earth's spin axis. The gyroscope includes a rotor having a spin axis (SRA) and means to support the gyro for travel along a borehole or well and to rotate it about a further axis extending generally in the direction of the borehole or well, the tilt of the hole also being determined by an accelerometer 26 arranged for rotation with the gyroscope 20 about axis 24 parallel to the longitudinal axis of the housing 18 of the apparatus. As seen in Fig. 3 the rotation of the gyro about axis 24 causes its signal output 39a to be a maximum when the spin reference axis SRA passes through the North- South longitudinal plane and to be zero when that axis is normal to that plane. The accelerometer output 45 is maximum when the gyro output indicates South or North alignment. Further the accelerometer output is greater when the tilt angle increases and vice-versa.
GB3861073A 1973-08-15 1973-08-15 Well mapping apparatus and method Expired GB1437125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3861073A GB1437125A (en) 1973-08-15 1973-08-15 Well mapping apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3861073A GB1437125A (en) 1973-08-15 1973-08-15 Well mapping apparatus and method

Publications (1)

Publication Number Publication Date
GB1437125A true GB1437125A (en) 1976-05-26

Family

ID=10404567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3861073A Expired GB1437125A (en) 1973-08-15 1973-08-15 Well mapping apparatus and method

Country Status (1)

Country Link
GB (1) GB1437125A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431682A1 (en) * 1978-07-17 1980-02-15 Applied Tech Ass APPARATUS FOR MEASURING AZIMUT, ESPECIALLY IN A PROBE HOLE
GB2122751A (en) * 1982-01-11 1984-01-18 Applied Tech Ass Well mapping apparatus
US4468863A (en) * 1981-08-17 1984-09-04 Applied Technologies Associates High speed well surveying
US4593559A (en) * 1985-03-07 1986-06-10 Applied Technologies Associates Apparatus and method to communicate bidirectional information in a borehole
US4611405A (en) * 1981-08-17 1986-09-16 Applied Technologies Associates High speed well surveying
US4706388A (en) * 1984-07-30 1987-11-17 Applied Technologies Associates Borehole initial alignment and change determination
US8874407B2 (en) 2009-08-21 2014-10-28 Antech Limited System for determination of downhole position
CN106679631A (en) * 2017-02-22 2017-05-17 中国地震局地壳应力研究所 Remote direction adjusting device of borehole inclinometer for measuring borehole crustal inclination
CN109839433A (en) * 2019-02-22 2019-06-04 四川莱威盛世科技有限公司 Metallic conduit defect location detection device and method based on collection magnetic surface scanning

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431682A1 (en) * 1978-07-17 1980-02-15 Applied Tech Ass APPARATUS FOR MEASURING AZIMUT, ESPECIALLY IN A PROBE HOLE
US4468863A (en) * 1981-08-17 1984-09-04 Applied Technologies Associates High speed well surveying
US4611405A (en) * 1981-08-17 1986-09-16 Applied Technologies Associates High speed well surveying
GB2122751A (en) * 1982-01-11 1984-01-18 Applied Tech Ass Well mapping apparatus
US4706388A (en) * 1984-07-30 1987-11-17 Applied Technologies Associates Borehole initial alignment and change determination
US4593559A (en) * 1985-03-07 1986-06-10 Applied Technologies Associates Apparatus and method to communicate bidirectional information in a borehole
US8874407B2 (en) 2009-08-21 2014-10-28 Antech Limited System for determination of downhole position
CN106679631A (en) * 2017-02-22 2017-05-17 中国地震局地壳应力研究所 Remote direction adjusting device of borehole inclinometer for measuring borehole crustal inclination
CN109839433A (en) * 2019-02-22 2019-06-04 四川莱威盛世科技有限公司 Metallic conduit defect location detection device and method based on collection magnetic surface scanning

Similar Documents

Publication Publication Date Title
US3753296A (en) Well mapping apparatus and method
US3543587A (en) Gyroscopic instrument
DE3565708D1 (en) Borehole survey method and apparatus
EP0294811A3 (en) High speed well surveying and land navigation
US4192077A (en) Survey apparatus and method employing rate-of-turn and free gyroscopes
GB1118509A (en) Method of and apparatus for submarine magnetotelluric surveying
GB1437125A (en) Well mapping apparatus and method
GB1306781A (en) Method and apparatus for borehole directional logging
GB1314354A (en) Borehole orientation tool
GB1494273A (en) Bent-subs for borehole drilling
GB1009169A (en) Method of positioning a gyro-compass
GB1410895A (en) Gyrocompasses
SE7703298L (en) DEVICE AND METHOD FOR DETERMINING JUSTICE NORR
ES2004419A6 (en) Method and device for azimuth determination using a strap-down gyro.
CA1083389A (en) Gyroscopic instrument comprising stabilizing and control gyros mounted on a common shaft
JPS57171210A (en) Gyro compass
Lamprecht Base motion compensation for a fiber-optic north-seeking gyroscope
GB1533232A (en) Angular position reference devices
FR2241686A1 (en) Gyroscopic method of testing alignment of a borehole - wherein a boring pipe instrumentation case signals azimuth and inclination
US2300710A (en) Universal flight indicator
US3568328A (en) Aircraft compass
US2630015A (en) Inclined gyro-vertical
GB1061769A (en) Gyroscopic apparatus
SU892211A1 (en) Gyroscopic device for heading machine
GB1469123A (en) Gyrocompasses

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930814