DK166877A - Fremgangsmade og apparat til stedbestemmelse af underjordiske magnetiske legemer fra et nerliggende ikke lodret borehul - Google Patents

Fremgangsmade og apparat til stedbestemmelse af underjordiske magnetiske legemer fra et nerliggende ikke lodret borehul

Info

Publication number
DK166877A
DK166877A DK166877A DK166877A DK166877A DK 166877 A DK166877 A DK 166877A DK 166877 A DK166877 A DK 166877A DK 166877 A DK166877 A DK 166877A DK 166877 A DK166877 A DK 166877A
Authority
DK
Denmark
Prior art keywords
determination
procedure
magnetic bodies
vertical borehole
underground magnetic
Prior art date
Application number
DK166877A
Other languages
English (en)
Inventor
F J Morris
G F Roberts
R L Walters
Original Assignee
Houston Oil & Minerals Corp
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 Houston Oil & Minerals Corp filed Critical Houston Oil & Minerals Corp
Publication of DK166877A publication Critical patent/DK166877A/da

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • 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
    • E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
DK166877A 1976-05-12 1977-04-14 Fremgangsmade og apparat til stedbestemmelse af underjordiske magnetiske legemer fra et nerliggende ikke lodret borehul DK166877A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/685,936 US4072200A (en) 1976-05-12 1976-05-12 Surveying of subterranean magnetic bodies from an adjacent off-vertical borehole

Publications (1)

Publication Number Publication Date
DK166877A true DK166877A (da) 1977-11-13

Family

ID=24754268

Family Applications (1)

Application Number Title Priority Date Filing Date
DK166877A DK166877A (da) 1976-05-12 1977-04-14 Fremgangsmade og apparat til stedbestemmelse af underjordiske magnetiske legemer fra et nerliggende ikke lodret borehul

Country Status (8)

Country Link
US (1) US4072200A (da)
CA (1) CA1057354A (da)
DK (1) DK166877A (da)
FR (1) FR2361671A1 (da)
GB (1) GB1585479A (da)
HK (1) HK11882A (da)
NL (1) NL187771C (da)
NO (1) NO147693C (da)

Cited By (1)

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CN114215530A (zh) * 2021-11-29 2022-03-22 中国矿业大学 一种坚硬顶板定向水压致裂沿空巷道快速掘巷方法

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CN114215530A (zh) * 2021-11-29 2022-03-22 中国矿业大学 一种坚硬顶板定向水压致裂沿空巷道快速掘巷方法
CN114215530B (zh) * 2021-11-29 2024-04-19 中国矿业大学 一种坚硬顶板定向水压致裂沿空巷道快速掘巷方法

Also Published As

Publication number Publication date
FR2361671B1 (da) 1982-07-23
NO147693C (no) 1983-05-25
US4072200A (en) 1978-02-07
NL187771C (nl) 1992-01-02
NL7704513A (nl) 1977-11-15
NO147693B (no) 1983-02-14
FR2361671A1 (fr) 1978-03-10
NO771588L (no) 1977-11-15
CA1057354A (en) 1979-06-26
NL187771B (nl) 1991-08-01
GB1585479A (en) 1981-03-04
HK11882A (en) 1982-03-19

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