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ZA802904B - Drill hole survey instrument - Google Patents

Drill hole survey instrument

Info

Publication number
ZA802904B
ZA802904B ZA00802904A ZA802904A ZA802904B ZA 802904 B ZA802904 B ZA 802904B ZA 00802904 A ZA00802904 A ZA 00802904A ZA 802904 A ZA802904 A ZA 802904A ZA 802904 B ZA802904 B ZA 802904B
Authority
ZA
South Africa
Prior art keywords
drill hole
survey instrument
hole survey
instrument
drill
Prior art date
Application number
ZA00802904A
Other languages
English (en)
Inventor
D Sands
Original Assignee
Trendor Ltd
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 Trendor Ltd filed Critical Trendor Ltd
Publication of ZA802904B publication Critical patent/ZA802904B/xx

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
    • E21B47/0236—Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
ZA00802904A 1979-06-01 1980-05-16 Drill hole survey instrument ZA802904B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPD903779 1979-06-01

Publications (1)

Publication Number Publication Date
ZA802904B true ZA802904B (en) 1981-05-27

Family

ID=3768131

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00802904A ZA802904B (en) 1979-06-01 1980-05-16 Drill hole survey instrument

Country Status (3)

Country Link
CA (1) CA1137299A (xx)
GB (1) GB2052757B (xx)
ZA (1) ZA802904B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19837546C2 (de) * 1998-08-19 2001-07-26 Bilfinger Berger Bau Meßvorrichtung zum Bestimmen der Ausrichtung und des Verlaufs eines Bohrgestänges

Also Published As

Publication number Publication date
GB2052757A (en) 1981-01-28
GB2052757B (en) 1983-08-10
CA1137299A (en) 1982-12-14

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