Detection of Distant Explosions by Seismic Measurements in Deep Boreholes

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Description

Report presenting the results of a program of research on the depth-well method of obtaining improved signal-to-noise ratios in seismic recordings. Experiments were conducted comparing simultaneous measurements of seismic signals in adjacent cased and open boreholes. Design and performance features of a moving coil geophone for borehole use are described. A balldrop method of geophone calibration is described. The improvement of signal-to-noise ratio with depth for the first ''P'' arrival was determined for the Prater No. 1 well in southwest Oklahoma. (Author).

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ii, 26 pages : illustrations, map ; 29 cm.

Creation Information

VanSandt, D. R. July 31, 1962.

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  • Air Force Cambridge Research Laboratories (U.S.)
    Publisher Info: Air Force Cambridge Research Laboratories, Office of Aerospace Research, Geophysics Research Directorate, United States Air Force
    Place of Publication: Bedford, Massachusetts

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Description

Report presenting the results of a program of research on the depth-well method of obtaining improved signal-to-noise ratios in seismic recordings. Experiments were conducted comparing simultaneous measurements of seismic signals in adjacent cased and open boreholes. Design and performance features of a moving coil geophone for borehole use are described. A balldrop method of geophone calibration is described. The improvement of signal-to-noise ratio with depth for the first ''P'' arrival was determined for the Prater No. 1 well in southwest Oklahoma. (Author).

Physical Description

ii, 26 pages : illustrations, map ; 29 cm.

Notes

Includes bibliographic references (page 26).

Included illustrations are not paginated.

Report prepared by Jersey Production Research Company, Tulsa, Oklahoma, under contract no. AF 19(604)-8345

"Project 8652"

"Task 865203"

"Prepared for Geophysics Research Directorate, Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, Bedford, Massachusetts"

"Project - VELA-UNIFORM"

ARPA Order No. 180-61, Amendment 2"

"Project Code No. 8100, Task 2"

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Technical Report Archive and Image Library

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  • July 31, 1962

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  • Dec. 2, 2025, 11:56 a.m.

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  • Feb. 19, 2026, 12:09 p.m.

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VanSandt, D. R. Detection of Distant Explosions by Seismic Measurements in Deep Boreholes, report, July 31, 1962; Bedford, Massachusetts. (https://digital.library.unt.edu/ark:/67531/metadc1537294/: accessed April 13, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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