Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1986-07-23
1988-01-05
Howell, Janice A.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250262, G01V 500
Patent
active
047178256
ABSTRACT:
A method and apparatus (108) are disclosed for spectral gamma ray logging of a well borehole (106) to determine elemental concentrations of radioactive materials in subsurface earth formations (100) and in the borehole region. Anomalous radioactive deposition in the borehole region is identified and the effect thereof compensated for in the elemental concentration determinations.
REFERENCES:
patent: 4439676 (1984-03-01), Smith, Jr. et al.
patent: 4527058 (1985-07-01), Smith, Jr.
patent: 4612439 (1986-09-01), Chace
patent: 4661701 (1987-04-01), Grau
Gadeken Larry L.
Smith, Jr. Harry D.
Beard William J.
Halliburton Company
Howell Janice A.
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