CA2247490C - Indicateur de deviation de fond de trou - Google Patents

Indicateur de deviation de fond de trou Download PDF

Info

Publication number
CA2247490C
CA2247490C CA002247490A CA2247490A CA2247490C CA 2247490 C CA2247490 C CA 2247490C CA 002247490 A CA002247490 A CA 002247490A CA 2247490 A CA2247490 A CA 2247490A CA 2247490 C CA2247490 C CA 2247490C
Authority
CA
Canada
Prior art keywords
restriction
indicator
drift
flow
pivot
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 - Lifetime
Application number
CA002247490A
Other languages
English (en)
Other versions
CA2247490A1 (fr
Inventor
Charles Abernethy Anderson
Alan Martyn Eddison
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.)
Andergauge Ltd
Original Assignee
Andergauge 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
Priority claimed from GBGB9604279.1A external-priority patent/GB9604279D0/en
Application filed by Andergauge Ltd filed Critical Andergauge Ltd
Publication of CA2247490A1 publication Critical patent/CA2247490A1/fr
Application granted granted Critical
Publication of CA2247490C publication Critical patent/CA2247490C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
    • G01C9/14—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10 movable in more than one direction
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Earth Drilling (AREA)
  • Fluid-Damping Devices (AREA)
CA002247490A 1996-02-29 1997-02-27 Indicateur de deviation de fond de trou Expired - Lifetime CA2247490C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9604279.1 1996-02-29
GBGB9604279.1A GB9604279D0 (en) 1996-02-29 1996-02-29 Downhole tool
PCT/GB1997/000547 WO1997039220A1 (fr) 1996-02-29 1997-02-27 Outil de fond de trou

Publications (2)

Publication Number Publication Date
CA2247490A1 CA2247490A1 (fr) 1997-10-23
CA2247490C true CA2247490C (fr) 2006-06-20

Family

ID=37393153

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002247490A Expired - Lifetime CA2247490C (fr) 1996-02-29 1997-02-27 Indicateur de deviation de fond de trou

Country Status (1)

Country Link
CA (1) CA2247490C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111780713A (zh) * 2020-06-06 2020-10-16 河南交院工程技术有限公司 一种桥梁及倾角检测装置

Also Published As

Publication number Publication date
CA2247490A1 (fr) 1997-10-23

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20170227