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

Natural gamma ray logging with borehole effect compensation

Patent ·
OSTI ID:6417690
A natural gamma ray logging system utilizes gamma ray spectroscopy to measure thorium, uranium and potassium content of earth formations adjacent a well borehole. An additional measurement is also taken from which compensation for borehole effects on the measurements of interest is achieved.
Assignee:
Texaco Inc.
Patent Number(s):
US 4439676
OSTI ID:
6417690
Country of Publication:
United States
Language:
English