Logging technique for assaying for uranium in earth formations

Details Logging technique for assaying for uranium in earth formations Logging technique for assaying for uranium in earth formations

1978-01-12

1979-12-25

Smith, Alfred E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250269, G01V 500

Patent

active

041807308

ABSTRACT:
A borehole logging tool includes a source of fast neutrons, an epithermal neutron flux detector, and a thermal neutron flux detector. A count rate meter is connected to each detector. A ratio detector provides a signal indicative of the ratio of the count rates of the two detectors obtained during the time that prompt neutrons are emitted from neutron fission of uranium in the formation.

REFERENCES:
patent: 2920204 (1960-01-01), Youmans
patent: 3385969 (1968-05-01), Nelligan

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