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CA959569A - Apparatus for use in investigating earth formations - Google Patents

Apparatus for use in investigating earth formations

Info

Publication number
CA959569A
CA959569A CA142,801A CA142801A CA959569A CA 959569 A CA959569 A CA 959569A CA 142801 A CA142801 A CA 142801A CA 959569 A CA959569 A CA 959569A
Authority
CA
Canada
Prior art keywords
earth formations
investigating earth
investigating
formations
earth
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
CA142,801A
Other versions
CA142801S (en
Inventor
Jean-Claude Trouiller
Bernard Vivet
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.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada 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 Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Application granted granted Critical
Publication of CA959569A publication Critical patent/CA959569A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G01V1/52—Structural details
    • G01V1/523—Damping devices

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Multimedia (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
CA142,801A 1971-05-24 1972-05-23 Apparatus for use in investigating earth formations Expired CA959569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7118637A FR2138336A1 (en) 1971-05-24 1971-05-24 Borehole survey head - with acoustic transmitters mounted on mechanical low pass filter body

Publications (1)

Publication Number Publication Date
CA959569A true CA959569A (en) 1974-12-17

Family

ID=9077491

Family Applications (1)

Application Number Title Priority Date Filing Date
CA142,801A Expired CA959569A (en) 1971-05-24 1972-05-23 Apparatus for use in investigating earth formations

Country Status (3)

Country Link
CA (1) CA959569A (en)
DE (1) DE2223722A1 (en)
FR (1) FR2138336A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3305189C2 (en) * 1983-02-11 1987-05-07 Prakla-Seismos AG, 3000 Hannover Borehole probe
US6366531B1 (en) 1998-09-22 2002-04-02 Dresser Industries, Inc. Method and apparatus for acoustic logging
US6564899B1 (en) * 1998-09-24 2003-05-20 Dresser Industries, Inc. Method and apparatus for absorbing acoustic energy
US6429784B1 (en) 1999-02-19 2002-08-06 Dresser Industries, Inc. Casing mounted sensors, actuators and generators
WO2014160858A1 (en) * 2013-03-28 2014-10-02 Chung Chang Acoustic isolator for downhole tools

Also Published As

Publication number Publication date
FR2138336A1 (en) 1973-01-05
FR2138336B1 (en) 1975-01-17
DE2223722A1 (en) 1972-12-07

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