Advanced downhole periodic seismic generator
Patent
·
OSTI ID:867904
- Albuquerque, NM
- Las Cruces, NM
An advanced downhole periodic seismic generator system 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.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Assignee:
- Hills, Richard G. (Las Cruces, NM)
- Patent Number(s):
- US 5031717
- Application Number:
- 07/312,683
- OSTI ID:
- 867904
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
advanced
downhole
periodic
seismic
generator
transmitting
variable
frequency
predominantly
shear-wave
vibration
earth
strata
surrounding
borehole
comprises
unitary
housing
operably
connected
head
support
electrical
cabling
contains
clamping
apparatus
selectively
walls
speed
pneumatic
oscillator
self-contained
reservoir
producing
frequency-swept
output
discrete
range
seismic generator
unitary housing
variable frequency
frequency range
operably connected
variable speed
selectively clamping
strata surrounding
clamping apparatus
periodic seismic
shear-wave vibration
contains clamping
earth strata
discrete frequency
electrical cabling
housing operably
transmitting variable
predominantly shear-wave
advanced downhole
downhole periodic
/181/367/
downhole
periodic
seismic
generator
transmitting
variable
frequency
predominantly
shear-wave
vibration
earth
strata
surrounding
borehole
comprises
unitary
housing
operably
connected
head
support
electrical
cabling
contains
clamping
apparatus
selectively
walls
speed
pneumatic
oscillator
self-contained
reservoir
producing
frequency-swept
output
discrete
range
seismic generator
unitary housing
variable frequency
frequency range
operably connected
variable speed
selectively clamping
strata surrounding
clamping apparatus
periodic seismic
shear-wave vibration
contains clamping
earth strata
discrete frequency
electrical cabling
housing operably
transmitting variable
predominantly shear-wave
advanced downhole
downhole periodic
/181/367/