Down-hole periodic seismic generator

Patent · Thu Oct 28 00:00:00 EDT 1982

OSTI ID:5605151

Hardee, H C; Hills, R G; Striker, R P

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.

• DOE Contract Number: AC04-76DP00789
• Assignee: SNL; ERA-08-054782; EDB-83-179073
• Application Number: ON: DE83018009
• OSTI ID: 5605151
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
SEISMIC SOURCES
DESIGN
PNEUMATICS
SEISMIC S WAVES
FLUID MECHANICS
MECHANICS
SEISMIC WAVES
440400* - Well Logging Instrumentation