Logging apparatus and method

Details Logging apparatus and method Logging apparatus and method

1988-09-13

1989-09-05

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

2502521, 250254, 250266, G01V 512

Patent

active

048641294

ABSTRACT:
A method of calibrating a radiation detector, positioned in apparatus including a source of gamma radiation such that the detector may sense radiation from the environment of the apparatus due to radiation emitted by the source and scattered by the environment, includes utilizing test environments including formations of known bulk densities. The apparatus may be positioned within the test environments at different distances from the surfaces of the formations. Count rates of the detector are compared to the formation bulk densities for the distances of the apparatus from the formation surfaces to calibrate the detector relative to the radiation source.

REFERENCES:
patent: 3860816 (1975-01-01), Wilson
patent: 4587623 (1986-05-01), Regimand et al.
patent: 4698501 (1987-10-01), Paske

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