Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1984-07-19
1986-05-20
Smith, Alfred E.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250269, 250390, G01V 510
Patent
active
045903700
ABSTRACT:
A borehole logging tool includes a pulsed source of fast neutrons and a neutron sensitive counter. A neutron filter encases the counter and has a thickness to permit the longest possible delay time following each burst of fast neutrons before epithermal neutrons from the irradiated formation are detected by the neutron counter while at the same time minimizing thermal neutron effects.
REFERENCES:
patent: 3264477 (1966-08-01), Hall, Jr.
patent: 4097737 (1978-06-01), Mills, Jr.
patent: 4241253 (1980-12-01), Allen et al.
patent: 4516028 (1985-05-01), Riggan
Allen Linus S.
Mills, Jr. William R.
Gilman Michael G.
Hager Jr. George W.
Hannaher Constantine
McKillop A. J.
Mobil Oil Corporation
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