Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1994-09-30
1996-04-16
Willis, Davis L.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250265, 2502692, G01V 512
Patent
active
055085148
ABSTRACT:
The invention concerns a well logging device with a pad, characterized in that the pad has a nuclear sensor with a gamma ray source and two detectors separated by a space in the longitudinal direction, and a second sensor of different type located in said space, preferably a micro-resistivity sensor with electrodes.
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patent: 4958073 (1990-09-01), Becker et al.
patent: 5036283 (1991-07-01), Trouiller et al.
patent: 5198770 (1993-03-01), Decorps et al.
Chevalier Philippe
Eyl Kevin E.
Sallwasser Alan J.
Hanig Richard
Willis Davis L.
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