Downhole hydraulic seismic generator

Gregory, Danny L; Hardee, Harry C; Smallwood, David O

Title: Downhole hydraulic seismic generator

Abstract

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.

Inventors:

Gregory, Danny L ^[1]; Hardee, Harry C ^[2]; Smallwood, David O ^[2]

Corrales, NM
Albuquerque, NM

Issue Date:: 1992-01-01

Research Org.:: AT&T

OSTI Identifier:: 868290

Patent Number(s):: 5113966

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S367/912 - Particular transducer

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G01V1/155 - using reciprocating masses

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DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: downhole; hydraulic; seismic; generator; transmitting; energy; wave; vibrations; earth; strata; surrounding; borehole; contains; elongated; unitary; housing; operably; connected; head; aboveground; support; electrical; cabling; clamping; apparatus; selectively; walls; comprises; oscillator; containing; double-actuating; piston; movement; controlled; electro-servovalve; regulating; pressure; fluid; flow; upper; chambers; spent; stored; pumped; provide; conducting; run; location; seismic generator; unitary housing; pressure fluid; hydraulic fluid; fluid flow; operably connected; pressure hydraulic; selectively clamping; strata surrounding; clamping apparatus; contains clamping; earth strata; electrical cabling; housing operably; hydraulic seismic; downhole hydraulic; /181/367/

Citation Formats


                    Gregory, Danny L, Hardee, Harry C, and Smallwood, David O. Downhole hydraulic seismic generator.  United States: N. p., 1992. 
        Web.

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                    Gregory, Danny L, Hardee, Harry C, & Smallwood, David O. Downhole hydraulic seismic generator.  United States.

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                    Gregory, Danny L, Hardee, Harry C, and Smallwood, David O. Wed .  
        "Downhole hydraulic seismic generator".  United States.  https://www.osti.gov/servlets/purl/868290.

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@article{osti_868290,

  title        = {Downhole hydraulic seismic generator},

  author       = {Gregory, Danny L and Hardee, Harry C and Smallwood, David O},

  abstractNote = {A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {1}

}

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Works referenced in this record:

Probing the melt zone of Kilauea Iki Lava Lake, Kilauea Volcano, Hawaii
journal, December 1981

Hardee, H. C.; Dunn, J. C.; Hills, R. G.
Geophysical Research Letters, Vol. 8, Issue 12
https://doi.org/10.1029/GL008i012p01211

Downhole Periodic Seismic Sources*
journal, February 1983

Hardee, H. C.
Geophysical Prospecting, Vol. 31, Issue 1
https://doi.org/10.1111/j.1365-2478.1983.tb01041.x

Downhole seismic source
journal, June 1987

Hardee, H. C.; Elbring, G. J.; Paulsson, B. N. P.
GEOPHYSICS, Vol. 52, Issue 6
https://doi.org/10.1190/1.1442339

The resonant acoustic pulser—A continuous‐frequency marine seismic source
journal, August 1983

Hardee, H. C.; Hills, R. G.
GEOPHYSICS, Vol. 48, Issue 8
https://doi.org/10.1190/1.1441530

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Similar Records

Title: Downhole hydraulic seismic generator

Abstract

Citation Formats

Probing the melt zone of Kilauea Iki Lava Lake, Kilauea Volcano, Hawaii journal, December 1981

Downhole Periodic Seismic Sources* journal, February 1983

Downhole seismic source journal, June 1987

The resonant acoustic pulser—A continuous‐frequency marine seismic source journal, August 1983

Probing the melt zone of Kilauea Iki Lava Lake, Kilauea Volcano, Hawaii
journal, December 1981

Downhole Periodic Seismic Sources*
journal, February 1983

Downhole seismic source
journal, June 1987

The resonant acoustic pulser—A continuous‐frequency marine seismic source
journal, August 1983