Advanced motor driven clamped borehole seismic receiver

Patent · Tue Feb 23 00:00:00 EST 1993

OSTI ID:6245358

Engler, B P; Sleefe, G E; Striker, R P

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): US 5189262; A
• Application Number: PPN: US 7-775871
• OSTI ID: 6245358
• Resource Relation: Patent File Date: 15 Oct 1991
• Country of Publication: United States
• Language: English

Related Subjects

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