FR2406805A1 - WIDE ANGLE CLINOSCOPE - Google Patents

WIDE ANGLE CLINOSCOPE

Info

Publication number
FR2406805A1
FR2406805A1 FR7829962A FR7829962A FR2406805A1 FR 2406805 A1 FR2406805 A1 FR 2406805A1 FR 7829962 A FR7829962 A FR 7829962A FR 7829962 A FR7829962 A FR 7829962A FR 2406805 A1 FR2406805 A1 FR 2406805A1
Authority
FR
France
Prior art keywords
axis
angle
drill string
clinoscope
wide angle
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.)
Granted
Application number
FR7829962A
Other languages
French (fr)
Other versions
FR2406805B1 (en
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.)
BJ Hughes Inc
Original Assignee
BJ Hughes 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 BJ Hughes Inc filed Critical BJ Hughes Inc
Publication of FR2406805A1 publication Critical patent/FR2406805A1/en
Application granted granted Critical
Publication of FR2406805B1 publication Critical patent/FR2406805B1/fr
Granted 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
    • E21B47/0236—Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

L'invention concerne un dispositif pour mesurer la déviation de l'axe longitudinal d'un train de tiges par rapport à un angle connu de glissement, cet angle connu étant supérieur à 0 degrés . Selon l'invention, on prévoit un logement 32 pouvant être inséré dans le train de tiges; un pendule 24 monté pivotant dans le logement et ayant un premier axe en alignement normalement vertical sous l'influence de la gravité et un second axe coupant le premier axe au point de pivot du pendule à l'angle connu supérieur à 0 degrés ; un moyen 25 pour mesurer l'angle entre le second axe et l'axe du train de tiges; et un moyen 150 pour signaler, à la surface, la mesure de l'angle entre le second axe et l'axe du train de tiges. L'invention s'applique notamment au forage.The invention relates to a device for measuring the deviation of the longitudinal axis of a drill string from a known sliding angle, this known angle being greater than 0 degrees. According to the invention, there is provided a housing 32 which can be inserted into the drill string; a pendulum 24 pivotally mounted in the housing and having a first axis in normally vertical alignment under the influence of gravity and a second axis intersecting the first axis at the pivot point of the pendulum at the known angle greater than 0 degrees; means 25 for measuring the angle between the second axis and the axis of the drill string; and means 150 for signaling, on the surface, the measurement of the angle between the second axis and the axis of the drill string. The invention applies in particular to drilling.

FR7829962A 1977-10-21 1978-10-20 WIDE ANGLE CLINOSCOPE Granted FR2406805A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84439877A 1977-10-21 1977-10-21

Publications (2)

Publication Number Publication Date
FR2406805A1 true FR2406805A1 (en) 1979-05-18
FR2406805B1 FR2406805B1 (en) 1982-03-19

Family

ID=25292624

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829962A Granted FR2406805A1 (en) 1977-10-21 1978-10-20 WIDE ANGLE CLINOSCOPE

Country Status (8)

Country Link
JP (1) JPS5474461A (en)
AR (1) AR225602A1 (en)
CA (1) CA1127833A (en)
DE (1) DE2844765A1 (en)
FR (1) FR2406805A1 (en)
GB (1) GB2009929B (en)
IT (1) IT1106206B (en)
NL (1) NL7810501A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110242285A (en) * 2019-05-21 2019-09-17 自贡中兴耐磨新材料有限公司 A kind of mechanical inclination measurement system based on circulation of drilling fluid
CN114810039B (en) * 2022-05-12 2022-11-25 中国地质大学（北京） Mud pulse signal generating device and inclinometer
CN116448065B (en) * 2023-06-09 2023-08-25 山东钰镪地质资源勘查开发有限责任公司 Ground slope metering survey device for territorial space planning

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176407A (en) * 1960-03-11 1965-04-06 Varney Eng Drift indicator
US3466755A (en) * 1967-03-22 1969-09-16 Byron Jackson Inc Mainspring force transfer means for signalling drift indicator

Also Published As

Publication number Publication date
DE2844765A1 (en) 1979-04-26
AR225602A1 (en) 1982-04-15
IT1106206B (en) 1985-11-11
CA1127833A (en) 1982-07-20
FR2406805B1 (en) 1982-03-19
IT7851588A0 (en) 1978-10-20
GB2009929B (en) 1982-05-06
JPS5474461A (en) 1979-06-14
NL7810501A (en) 1979-04-24
GB2009929A (en) 1979-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse