GB563321A - Improvements in borehole clinometers - Google Patents

Improvements in borehole clinometers

Info

Publication number
GB563321A
GB563321A GB522543A GB522543A GB563321A GB 563321 A GB563321 A GB 563321A GB 522543 A GB522543 A GB 522543A GB 522543 A GB522543 A GB 522543A GB 563321 A GB563321 A GB 563321A
Authority
GB
United Kingdom
Prior art keywords
borehole
gyroscope
clinometer
power
chamber
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
GB522543A
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.)
Scophony Ltd
Original Assignee
Scophony 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 Scophony Ltd filed Critical Scophony Ltd
Priority to GB522543A priority Critical patent/GB563321A/en
Publication of GB563321A publication Critical patent/GB563321A/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

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)
  • Gyroscopes (AREA)

Abstract

563,321. Borehole clinometers; gyroscopic apparatus. SCOPHONY, Ltd., and WIKKENHAUSER, G. April 1, 1943, No. 5225. [Classes 97 (ii) and 97 (iii)] A borehole clinometer includes a gyroscope enclosed in an evacuated chamber and brought up to substantially normal speed by a source of power which remains on the surface of the ground, the drive of the gyroscope being there after maintained by a smaller source of power. As shown, the clinometer casing 1 is divided by a diaphragm 2 into two chambers 3, 4, both capable of being her metically sealed. The chamber 4 contains an electrically - driver gyroscope 5 and may be evacuatec through a valve 16. The chamber 3 contains a battery 6 and an electric oscillator 7 feeding the gyroscope through an output transformer 8. Before the clinometer is lowered down the borehole, the large source of power is connected to terminals 12 to drive the gyroscope up to its normal speed. The power is disconnected and terminals 13 are short-circuited to connect the battery to the oscillator for maintaining the speed of the gyro. The clinometer may then be lowered down the borehole.
GB522543A 1943-04-01 1943-04-01 Improvements in borehole clinometers Expired GB563321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB522543A GB563321A (en) 1943-04-01 1943-04-01 Improvements in borehole clinometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB522543A GB563321A (en) 1943-04-01 1943-04-01 Improvements in borehole clinometers

Publications (1)

Publication Number Publication Date
GB563321A true GB563321A (en) 1944-08-09

Family

ID=9792050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB522543A Expired GB563321A (en) 1943-04-01 1943-04-01 Improvements in borehole clinometers

Country Status (1)

Country Link
GB (1) GB563321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130721A (en) * 1982-11-22 1984-06-06 Litton Systems Inc Measurement of pipeline deflection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130721A (en) * 1982-11-22 1984-06-06 Litton Systems Inc Measurement of pipeline deflection

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