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GB2148012B - Induced magnetic field borehole surveying method and probe - Google Patents

Induced magnetic field borehole surveying method and probe

Info

Publication number
GB2148012B
GB2148012B GB08425154A GB8425154A GB2148012B GB 2148012 B GB2148012 B GB 2148012B GB 08425154 A GB08425154 A GB 08425154A GB 8425154 A GB8425154 A GB 8425154A GB 2148012 B GB2148012 B GB 2148012B
Authority
GB
United Kingdom
Prior art keywords
probe
magnetic field
induced magnetic
surveying method
borehole surveying
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
GB08425154A
Other versions
GB8425154D0 (en
GB2148012A (en
Inventor
Robert Wesley Cobcroft
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.)
Individual
Original Assignee
Individual
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 AU33602/84A external-priority patent/AU577546B2/en
Application filed by Individual filed Critical Individual
Publication of GB8425154D0 publication Critical patent/GB8425154D0/en
Publication of GB2148012A publication Critical patent/GB2148012A/en
Application granted granted Critical
Publication of GB2148012B publication Critical patent/GB2148012B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB08425154A 1983-10-05 1984-10-04 Induced magnetic field borehole surveying method and probe Expired GB2148012B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG169883 1983-10-05
AU33602/84A AU577546B2 (en) 1983-10-05 1984-09-27 Induced magnetic field borehole surveying method

Publications (3)

Publication Number Publication Date
GB8425154D0 GB8425154D0 (en) 1984-11-07
GB2148012A GB2148012A (en) 1985-05-22
GB2148012B true GB2148012B (en) 1987-04-01

Family

ID=25622537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08425154A Expired GB2148012B (en) 1983-10-05 1984-10-04 Induced magnetic field borehole surveying method and probe

Country Status (1)

Country Link
GB (1) GB2148012B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748415A (en) * 1986-04-29 1988-05-31 Paramagnetic Logging, Inc. Methods and apparatus for induction logging in cased boreholes
US5064006A (en) * 1988-10-28 1991-11-12 Magrange, Inc Downhole combination tool
US5230387A (en) * 1988-10-28 1993-07-27 Magrange, Inc. Downhole combination tool
SE9100018L (en) * 1991-01-04 1992-07-05 Boliden Mineral Ab SET FOR ELECTROMAGNETIC DETERMINATION OF LEADING BODY POSITIONS UNDER THE MARKY SURFACE
US5130655A (en) * 1991-03-20 1992-07-14 Electromagnetic Instruments, Inc. Multiple-coil magnetic field sensor with series-connected main coils and parallel-connected feedback coils
GB9718891D0 (en) * 1997-09-06 1997-11-12 British Gas Plc Pipeline inspection device
US6853194B2 (en) * 2000-03-22 2005-02-08 The Johns Hopkins University Electromagnetic target discriminator sensor system and method for detecting and identifying metal targets
DE102016113136B4 (en) * 2016-07-15 2020-09-24 Heinrich Hirdes Gmbh Method for characterizing a metallic disruptive body

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808520A (en) * 1973-01-08 1974-04-30 Chevron Res Triple coil induction logging method for determining dip, anisotropy and true resistivity
FR2283451A1 (en) * 1974-06-14 1976-03-26 Rech Geolog Miniere GEOPHYSICAL RECOGNITION METHOD AND APPARATUS IN VERY LOW FREQUENCY WAVES DRILLING
US4502010A (en) * 1980-03-17 1985-02-26 Gearhart Industries, Inc. Apparatus including a magnetometer having a pair of U-shaped cores for extended lateral range electrical conductivity logging
GB2118305B (en) * 1982-01-21 1986-10-22 Cornell Res Foundation Inc Method and apparatus for extending lateral range electrical conductivity logging

Also Published As

Publication number Publication date
GB8425154D0 (en) 1984-11-07
GB2148012A (en) 1985-05-22

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee