Nuclear well logging with neutron source and separate spaced rad

Details Nuclear well logging with neutron source and separate spaced rad Nuclear well logging with neutron source and separate spaced rad

1980-10-02

1983-04-19

La Roche, Eugene

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250270, G01V 500

Patent

active

043807011

ABSTRACT:
Earth formations surrounding a well borehole are bombarded with high energy neutrons which react with chemical elements in the formation components, giving rise to gamma radiation. The gamma radiation is detected by two separate, spaced detectors from which well logs are obtained indicating a ratio of the relative presence of silicon to oxygen in the formations.

REFERENCES:
patent: 2508772 (1950-05-01), Pontecorvo
patent: 2963587 (1960-12-01), Rickard
patent: 3521062 (1970-07-01), Nagel
patent: 3887805 (1975-06-01), Schuster
patent: 3943363 (1976-03-01), Peelman
patent: 3959648 (1976-05-01), Pitts, Jr. et al.

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