GB1193382A - Improvements in or relating to a method and apparatus for Seismic Detection - Google Patents

Improvements in or relating to a method and apparatus for Seismic Detection

Info

Publication number
GB1193382A
GB1193382A GB687268A GB687268A GB1193382A GB 1193382 A GB1193382 A GB 1193382A GB 687268 A GB687268 A GB 687268A GB 687268 A GB687268 A GB 687268A GB 1193382 A GB1193382 A GB 1193382A
Authority
GB
United Kingdom
Prior art keywords
waves
energy
borehole
pattern
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
GB687268A
Inventor
James Edward White
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.)
Marathon Oil Co
Original Assignee
Marathon Oil Co
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 Marathon Oil Co filed Critical Marathon Oil Co
Publication of GB1193382A publication Critical patent/GB1193382A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01V1/44—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
    • G01V1/46—Data acquisition

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

1,193,382. Seismic prospecting. MARATHON OIL CO. 12 Feb., 1968 [11 Feb., 1967], No. 6872/68. Heading H4D. In a system for detecting inhomogeneities in the earth by reflection of acoustic energy, an energy field having a predetermined spatial pattern is radiated from within a borehole and echo signals are sensed by a detector in the borehole and insensitive to energy with that pattern, whereby the detector discriminates against directly-received energy and responds to echoes and other waves not having the predetermined pattern. The field is generated by energizing four barium titanate cylinder segments 47, or a transducer assembly similar to that disclosed in Specification 1,193,381 (see Division H4), with signals of selected amplitude and phase for propagating shear or compressional waves (either as pulses or with varying frequency) in the earth. Similar transducers 46 receive echoes of these waves and their electrical outputs are combined such that received waves with the same spatial pattern as the transmitted waves give no nett output. Thus if the earth formations are symmetrical about the borehole zero nett output is obtained, but inhomogeneities (i.e. asymmetry) modify the field pattern and result in a nett output. The receiving transducer outputs may be recorded individually for later addition by computer. In a modification, acoustic shear wave energy is generated by the impact of a moving mass against a stationary mass contacting the borehole wall, the impact being tangential to the borehole wall.
GB687268A 1967-02-11 1968-02-12 Improvements in or relating to a method and apparatus for Seismic Detection Expired GB1193382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60936967A 1967-02-11 1967-02-11

Publications (1)

Publication Number Publication Date
GB1193382A true GB1193382A (en) 1970-05-28

Family

ID=24440508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB687268A Expired GB1193382A (en) 1967-02-11 1968-02-12 Improvements in or relating to a method and apparatus for Seismic Detection

Country Status (4)

Country Link
JP (1) JPS5012362B1 (en)
DE (1) DE1673924A1 (en)
FR (1) FR1556476A (en)
GB (1) GB1193382A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145521A (en) * 1983-08-24 1985-03-27 Exxon Production Research Co Acoustic wave logging
GB2154320A (en) * 1984-02-07 1985-09-04 Shell Int Research Downhole fracture analysis
US4682308A (en) * 1984-05-04 1987-07-21 Exxon Production Research Company Rod-type multipole source for acoustic well logging
US4685091A (en) * 1984-05-10 1987-08-04 Exxon Production Research Co. Method and apparatus for acoustic well logging
US4855963A (en) * 1972-11-08 1989-08-08 Exxon Production Research Company Shear wave logging using acoustic multipole devices
US4932003A (en) * 1982-05-19 1990-06-05 Exxon Production Research Company Acoustic quadrupole shear wave logging device
USRE33472E (en) * 1984-05-04 1990-12-04 Exxon Production Research Company Rod-type multipole source(for) and receiver for acoustic well logging
USRE33837E (en) * 1984-05-10 1992-03-03 Exxon Production Research Company Method and apparatus for acoustic well logging

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852069A (en) * 1986-12-31 1989-07-25 Shell Oil Company Thin bed evaluation device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4855963A (en) * 1972-11-08 1989-08-08 Exxon Production Research Company Shear wave logging using acoustic multipole devices
US4932003A (en) * 1982-05-19 1990-06-05 Exxon Production Research Company Acoustic quadrupole shear wave logging device
GB2145521A (en) * 1983-08-24 1985-03-27 Exxon Production Research Co Acoustic wave logging
US4649526A (en) * 1983-08-24 1987-03-10 Exxon Production Research Co. Method and apparatus for multipole acoustic wave borehole logging
GB2154320A (en) * 1984-02-07 1985-09-04 Shell Int Research Downhole fracture analysis
US4587641A (en) * 1984-02-07 1986-05-06 Shell Oil Company Downhole fracture analysis
US4682308A (en) * 1984-05-04 1987-07-21 Exxon Production Research Company Rod-type multipole source for acoustic well logging
USRE33472E (en) * 1984-05-04 1990-12-04 Exxon Production Research Company Rod-type multipole source(for) and receiver for acoustic well logging
US4685091A (en) * 1984-05-10 1987-08-04 Exxon Production Research Co. Method and apparatus for acoustic well logging
USRE33837E (en) * 1984-05-10 1992-03-03 Exxon Production Research Company Method and apparatus for acoustic well logging

Also Published As

Publication number Publication date
FR1556476A (en) 1969-02-07
JPS5012362B1 (en) 1975-05-12
DE1673924A1 (en) 1972-04-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee