Nondestructive downhole seismic vibrator source and processes of utilizing the vibrator to obtain information about geologic formations

Patent · Tue Feb 21 04:00:00 EST 1989

OSTI ID:6314652

Paulsson, B N.P.

A downhole seismic source is described comprising: a housing; means for clamping the housing in a well bore; a reaction mass in the housing, the reaction mass oriented to move generally perpendicular to the well bore axis; means for hydraulically moving the reaction mass such that forces are transmitted through, through the clamp and into the well bore to generate at least one detectable seismic wave of predetermined frequencies to the housing; and means for rotating the reaction mass around an axis generally parallel to the well bore axis so as to orientate the mass in a selected direction.

• Assignee: Chevron Research Co., San Francisco, CA
• Patent Number(s): US 4805725
• OSTI ID: 6314652
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
CONTAINERS
DESIGN
EXPLORATION
FASTENERS
FLUID MECHANICS
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
HYDRAULICS
MEASURING INSTRUMENTS
MECHANICS
MINERAL RESOURCES
MOTION
NATURAL GAS DEPOSITS
OPERATION
PETROLEUM DEPOSITS
RESOURCES
ROTATION
SEISMIC ARRAYS
SEISMIC DETECTORS
SEISMIC SURVEYS
SEISMIC WAVES
SURVEYS