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Downhole hydraulic seismic generator

Patent ·
OSTI ID:868290
 [1];  [2];  [2]
  1. Corrales, NM
  2. Albuquerque, NM
+ Show Author Affiliations
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.
Research Organization:
AT & T CORP
DOE Contract Number:
AC04-76DP00789
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5113966
OSTI ID:
868290
Country of Publication:
United States
Language:
English

References (5)

Probing the melt zone of Kilauea Iki Lava Lake, Kilauea Volcano, Hawaii journal December 1981
Pharmacology Briefs journal April 1989
The resonant acoustic pulser—A continuous‐frequency marine seismic source journal August 1983
Downhole seismic source journal June 1987
Downhole Periodic Seismic Sources* journal February 1983

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Related Subjects

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