Dual spaced, borehole compensated neutron well logging instrumen

Details Dual spaced, borehole compensated neutron well logging instrumen Dual spaced, borehole compensated neutron well logging instrumen

1974-05-16

1976-03-02

Dixon, Harold A.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250269, 250270, G01V 500

Patent

active

039420043

ABSTRACT:
A dual spaced neutron well logging instrument and method utilizing a pair of alternately operated neutron sources and a pair of detectors, said dual spaced neutron well logging instrument being able to measure the porosity of earth formations penetrated by a borehole substantially independent of the thickness and the chemical composition of the mudcake, the cement liner, the well casing, the drilling mud and the diameter of the borehole.

REFERENCES:
patent: 3462600 (1969-08-01), Dewan
patent: 3567935 (1971-03-01), Nagel
patent: 3567936 (1971-03-01), Tittman
patent: 3823319 (1974-07-01), Tittman

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