Method and apparatus for nuclear logging using lithium detector

Details Method and apparatus for nuclear logging using lithium detector Method and apparatus for nuclear logging using lithium detector

1990-04-17

1994-01-11

Hayes, Gail O.

Boots, shoes, and leggings

E21B 4700, G01V 510

Patent

active

052787583

ABSTRACT:
A method and apparatus for nuclear logging, and in particular, neutron porosity logging is presented. In accordance with the present invention, a pair of spaced lithium detectors, preferably Li.sup.6 I crystal or Li.sup.6 doped glass are used to detect neutrons emitted from a borehole formation being logged. In addition, novel data processing is used to strip the gamma-ray peak from the spectrum developed by the lithium detectors.

REFERENCES:
patent: 4216536 (1980-08-01), Moore
patent: 4807157 (1989-02-01), Fukushima et al.
patent: 4829176 (1989-05-01), Paske et al.
patent: 4862374 (1989-08-01), Ziemann
patent: 4879463 (1989-11-01), Wraight et al.
patent: 4904865 (1990-02-01), Meisner et al.
patent: 4943925 (1990-07-01), Moroto et al.

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