Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1982-10-01
1985-01-08
Howell, Janice A.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250262, G01V 500
Patent
active
044928637
ABSTRACT:
Natural gamma radiation is detected by a scintillation detector in a well logging sonde and separated into at least six separate energy regions. The gamma ray counts in the higher four energy regions are used to derive borehole compensated elemental concentrations of potassium, uranium and thorium. The gamma ray counts lower two energy regions are used to identify formation lithology.
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patent: 4187908 (1980-02-01), Fertl et al.
patent: 4271356 (1981-06-01), Groeschel et al.
patent: 4436996 (1984-03-01), Arnold et al.
Beard William J.
Halliburton Company
Howell Janice A.
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