FR2104907A2 - Drilling speed meter - for displaying speed of advance and position of a drilling tool and depth of borehole - Google Patents

Drilling speed meter - for displaying speed of advance and position of a drilling tool and depth of borehole

Info

Publication number
FR2104907A2
FR2104907A2 FR7031966A FR7031966A FR2104907A2 FR 2104907 A2 FR2104907 A2 FR 2104907A2 FR 7031966 A FR7031966 A FR 7031966A FR 7031966 A FR7031966 A FR 7031966A FR 2104907 A2 FR2104907 A2 FR 2104907A2
Authority
FR
France
Prior art keywords
speed
drilling
borehole
depth
advance
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
FR7031966A
Other languages
French (fr)
Other versions
FR2104907B2 (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.)
Compagnie Generale dAutomatisme SA
Original Assignee
Compagnie Generale dAutomatisme SA
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 Compagnie Generale dAutomatisme SA filed Critical Compagnie Generale dAutomatisme SA
Priority to FR7031966A priority Critical patent/FR2104907A2/en
Publication of FR2104907A2 publication Critical patent/FR2104907A2/en
Application granted granted Critical
Publication of FR2104907B2 publication Critical patent/FR2104907B2/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
    • E21B45/00—Measuring the drilling time or rate of penetration

Landscapes

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

Abstract

In the appts. for measuring the speed and position of a drilling tool suspended by a cable passing over at least one pulley and comprising, as in FR 1533960, a time-base signal generator connected to a first input of an indicating counter, a pulse emitter, associated with the movement of the tool and connected to a second input of the counter, the improvement whereby the pulse emitter consists of a surface fixed to the pulley, with apertures for the passage of the beam emitted by a photoelectric generator and picked up by a photoelectric cell, the photoelectric generator and cell being installed on either side of the surface and at the position of the apertures, and the photocell output being combined with the output of the pulse emitter.
FR7031966A 1970-09-02 1970-09-02 Drilling speed meter - for displaying speed of advance and position of a drilling tool and depth of borehole Granted FR2104907A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7031966A FR2104907A2 (en) 1970-09-02 1970-09-02 Drilling speed meter - for displaying speed of advance and position of a drilling tool and depth of borehole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7031966A FR2104907A2 (en) 1970-09-02 1970-09-02 Drilling speed meter - for displaying speed of advance and position of a drilling tool and depth of borehole

Publications (2)

Publication Number Publication Date
FR2104907A2 true FR2104907A2 (en) 1972-04-28
FR2104907B2 FR2104907B2 (en) 1974-12-20

Family

ID=9060829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7031966A Granted FR2104907A2 (en) 1970-09-02 1970-09-02 Drilling speed meter - for displaying speed of advance and position of a drilling tool and depth of borehole

Country Status (1)

Country Link
FR (1) FR2104907A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1541771A (en) * 1967-08-30 1968-10-11 Schlumberger Instrumentation Device for measuring the progress of a borehole

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1541771A (en) * 1967-08-30 1968-10-11 Schlumberger Instrumentation Device for measuring the progress of a borehole

Also Published As

Publication number Publication date
FR2104907B2 (en) 1974-12-20

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