IE39563L - Logging-while-drilling system - Google Patents

Logging-while-drilling system

Info

Publication number
IE39563L
IE39563L IE730588A IE58873A IE39563L IE 39563 L IE39563 L IE 39563L IE 730588 A IE730588 A IE 730588A IE 58873 A IE58873 A IE 58873A IE 39563 L IE39563 L IE 39563L
Authority
IE
Ireland
Prior art keywords
signals
control
conditions
hole
comparator
Prior art date
Application number
IE730588A
Other versions
IE39563B1 (en
Original Assignee
Mobil Oil Corp
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 US00272838A external-priority patent/US3800277A/en
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of IE39563L publication Critical patent/IE39563L/en
Publication of IE39563B1 publication Critical patent/IE39563B1/en

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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • 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
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • 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
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • E21B47/20—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Earth Drilling (AREA)
  • Soil Working Implements (AREA)

Abstract

1390571 Automatic control MOBIL OIL CORP 17 April 1973 [18 July 1972(2)] 18468/73 Heading G3N Down-hole operations in a borehole are controlled by controlling the conditions in a plurality of communication channels in the borehole providing subsurface detectors for detecting the conditions in the channels and producing first signals representative of the conditions and producing from the first signals at least one control signal which is used to control a down-hole operation. As shown a conventional rotary drilling apparatus, Fig. 1, has a drill string 22 fed with drilling fluid through a desurger 33 suppressing pump noise. A down-hole logging tool 40 includes one or more transducers for measuring down-hole conditions and an acoustic transmitter producing a signal in the drilling fluid, which is received by one or more transducers 41 mounted on a swivel 30. The signals are applied to a recording system 42. The communication control, Fig. 4, comprises a mud flow-rate detector 80, and a comparator 81 and corresponding devices 82, 83 and 84, 85 for weight-on-drill and drill string rotary speed respectively. The mud-flow-rate is controlled from a pump 31, Fig. 1, and the detector 80 provides an electrical signal MFR which is applied to the comparator 81 which provides two output signals related to specific threshold values. The output signals from comparator 81 together with similar signals from comparators 83, 85 are fed to a control gate 86 in which they are selectively combined to provide a plurality of control signals A-E. [GB1390571A]
IE588/73A 1972-07-18 1973-04-12 Method and apparatus for controlling the dowhole acoustic transmitter of a logging-while-drilling system and method and apparatus for surface-todomnhole communication IE39563B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27281972A 1972-07-18 1972-07-18
US00272838A US3800277A (en) 1972-07-18 1972-07-18 Method and apparatus for surface-to-downhole communication

Publications (2)

Publication Number Publication Date
IE39563L true IE39563L (en) 1974-01-18
IE39563B1 IE39563B1 (en) 1978-11-08

Family

ID=26955761

Family Applications (1)

Application Number Title Priority Date Filing Date
IE588/73A IE39563B1 (en) 1972-07-18 1973-04-12 Method and apparatus for controlling the dowhole acoustic transmitter of a logging-while-drilling system and method and apparatus for surface-todomnhole communication

Country Status (7)

Country Link
DK (1) DK137935B (en)
GB (1) GB1390571A (en)
IE (1) IE39563B1 (en)
MY (1) MY7500208A (en)
NL (1) NL176964C (en)
NO (1) NO142017C (en)
OA (1) OA04443A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK34192D0 (en) * 1992-03-13 1992-03-13 Htc As TRACTOR FOR PROMOTING PROCESSING AND MEASURING EQUIPMENT IN A Borehole
US20030142586A1 (en) * 2002-01-30 2003-07-31 Shah Vimal V. Smart self-calibrating acoustic telemetry system
US7394064B2 (en) * 2004-10-05 2008-07-01 Halliburton Energy Services, Inc. Measuring the weight on a drill bit during drilling operations using coherent radiation

Also Published As

Publication number Publication date
NO142017C (en) 1980-06-11
OA04443A (en) 1980-03-15
IE39563B1 (en) 1978-11-08
DK137935B (en) 1978-06-05
DK137935C (en) 1978-10-30
NL176964C (en) 1985-07-01
NL176964B (en) 1985-02-01
GB1390571A (en) 1975-04-16
NO142017B (en) 1980-03-03
MY7500208A (en) 1975-12-31
NL7310027A (en) 1974-01-22

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