NL187771C - Werkwijze voor het gericht ondergronds boren van een boorgat. - Google Patents

Werkwijze voor het gericht ondergronds boren van een boorgat.

Info

Publication number
NL187771C
NL187771C NLAANVRAGE7704513,A NL7704513A NL187771C NL 187771 C NL187771 C NL 187771C NL 7704513 A NL7704513 A NL 7704513A NL 187771 C NL187771 C NL 187771C
Authority
NL
Netherlands
Prior art keywords
drill hole
underground drilling
directly underground
directly
drilling
Prior art date
Application number
NLAANVRAGE7704513,A
Other languages
English (en)
Other versions
NL187771B (nl
NL7704513A (nl
Original Assignee
Magrane 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 Magrane Inc filed Critical Magrane Inc
Publication of NL7704513A publication Critical patent/NL7704513A/nl
Publication of NL187771B publication Critical patent/NL187771B/nl
Application granted granted Critical
Publication of NL187771C publication Critical patent/NL187771C/nl

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)
NLAANVRAGE7704513,A 1976-05-12 1977-04-25 Werkwijze voor het gericht ondergronds boren van een boorgat. NL187771C (nl)

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 (3)

Publication Number Publication Date
NL7704513A NL7704513A (nl) 1977-11-15
NL187771B NL187771B (nl) 1991-08-01
NL187771C true NL187771C (nl) 1992-01-02

Family

ID=24754268

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7704513,A NL187771C (nl) 1976-05-12 1977-04-25 Werkwijze voor het gericht ondergronds boren van een boorgat.

Country Status (8)

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

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Also Published As

Publication number Publication date
HK11882A (en) 1982-03-19
NL187771B (nl) 1991-08-01
US4072200A (en) 1978-02-07
NO147693B (no) 1983-02-14
NO771588L (no) 1977-11-15
FR2361671B1 (nl) 1982-07-23
NL7704513A (nl) 1977-11-15
FR2361671A1 (fr) 1978-03-10
NO147693C (no) 1983-05-25
CA1057354A (en) 1979-06-26
GB1585479A (en) 1981-03-04
DK166877A (da) 1977-11-13

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