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Advanced motor driven clamped borehole seismic receiver

Patent ·
OSTI ID:6245358
; ;

A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

DOE Contract Number:
AC04-76DP00789
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
A; US 5189262
Application Number:
PPN: US 7-775871
OSTI ID:
6245358
Country of Publication:
United States
Language:
English

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Related Subjects

440700 -- Geophysical & Meteorological Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
58 GEOSCIENCES
580000* -- Geosciences
ACCELEROMETERS
BOREHOLES
CAVITIES
DESIGN
ELECTRIC MOTORS
ENGINES
FASTENERS
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
MOTORS
OPERATION
SEALS
SEISMIC ARRAYS
SEISMIC DETECTORS
SEISMIC SURVEYS
SURVEYS