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

Downhole seismic source

Patent ·
OSTI ID:5145605
This paper describes an improved apparatus for generating downhole seismic signals. It comprises: an elongate hollow body arranged to be lowered into a well bore; signal generating means in the body operably having a lower portion located at the distal end of the body so that, when lowered into the well bore, the lower portion is in contact with a medium into which aid seismic signals are to be transmitted; and control means in the body for activating the signal generating means to create the seismic signals in the medium with the lower portion.
Assignee:
Atlantic Richfield Co., Los Angeles, CA (USA)
Patent Number(s):
A; US 4991685
Application Number:
PPN: US 7-415618
OSTI ID:
5145605
Country of Publication:
United States
Language:
English