Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1985-03-27
1987-01-20
Howell, Janice A.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250256, 250269, 250361R, 250363R, 250366, G01V 508, G01T 120
Patent
active
046381597
ABSTRACT:
For use in a sonde adapted to be lowered in a well bore, the present apparatus sets forth an improved nuclear event detector. The detector is sized and shaped monotonically increasing in cross section or diameter with increasing distance from the radiation source to thereby bias the detector; this bias counteracts the bias arising from geometry altering the pattern in which nuclear events impinge on the detector, thereby altering the distribution of such events.
REFERENCES:
patent: 2711482 (1955-06-01), Goodman
patent: 2917647 (1959-12-01), Fowler et al.
patent: 3225193 (1965-12-01), Hilton et al.
patent: 4122339 (1978-10-01), Smith, Jr. et al.
Beard William J.
Halliburton Company
Hannaher Constantine
Howell Janice A.
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