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U.S. Department of Energy
Office of Scientific and Technical Information

Continuous shear wave logging apparatus

Patent ·
OSTI ID:5857748
Apparatus for continuous shear wave logging of a borehole consisting of a sonde instrument having retractable, expandable coupling arms for rigidly engaging the borehole wall to exert repetitive torqueing action while continuously moving uphole. The sonde includes spaced detector coupling arms in continual contact with the borehole wall and polarized for detection of the repetitive propagated shear waves.
Assignee:
Conoco Inc.
Patent Number(s):
US 4549630
OSTI ID:
5857748
Country of Publication:
United States
Language:
English