Down-hole periodic seismic generator
Abstract
A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head 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 variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5605151
- Application Number:
- ON: DE83018009
- Assignee:
- SNL; ERA-08-054782; EDB-83-179073
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; SEISMIC SOURCES; DESIGN; PNEUMATICS; SEISMIC S WAVES; FLUID MECHANICS; MECHANICS; SEISMIC WAVES; 440400* - Well Logging Instrumentation
Citation Formats
Hardee, H C, Hills, R G, and Striker, R P. Down-hole periodic seismic generator. United States: N. p., 1982.
Web.
Hardee, H C, Hills, R G, & Striker, R P. Down-hole periodic seismic generator. United States.
Hardee, H C, Hills, R G, and Striker, R P. Thu .
"Down-hole periodic seismic generator". United States.
@article{osti_5605151,
title = {Down-hole periodic seismic generator},
author = {Hardee, H C and Hills, R G and Striker, R P},
abstractNote = {A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head 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 variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {10}
}
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