Gamma ray spectroscopy logging-while-drilling system

Details Gamma ray spectroscopy logging-while-drilling system Gamma ray spectroscopy logging-while-drilling system

2005-08-09

2005-08-09

Hannaher, Constantine (Department: 2878)

Radiant energy

Geological testing or irradiation

With drill or drilling

Reexamination Certificate

active

06927390

ABSTRACT:
A system for measuring elemental compositions and other properties of earth formation penetrated by a borehole, wherein the measurements are made while drilling the borehole. The downhole instrumentation includes a neutron source and a gamma ray detector disposed in a drill collar. Formation parameters of interest are determined from the energy and intensity of gamma radiation induced in the formation by the neutron source. By minimizing the amount of iron in the immediate vicinity of the gamma ray detector, disposing no iron directly between the detector and the formation, and positioning the gamma ray detector as close as practical to the formation, interfering gamma radiation from iron is reduced thereby increasing precision and accuracy of the formation parameter measurements.

REFERENCES:
patent: 3521064 (1970-07-01), Moran et al.
patent: 3780302 (1973-12-01), Arnold et al.
patent: 4055763 (1977-10-01), Antkiw
patent: 4208580 (1980-06-01), Schweitzer et al.
patent: 4317993 (1982-03-01), Hertzog et al.
patent: 4722220 (1988-02-01), Herron
patent: 4810876 (1989-03-01), Wraight et al.
patent: 4903527 (1990-02-01), Herron
patent: 4904865 (1990-02-01), Meisner et al.
patent: 4978851 (1990-12-01), Youmans
patent: 5250806 (1993-10-01), Rhein-Knudsen et al.
patent: 5440118 (1995-08-01), Roscoe
patent: 5471057 (1995-11-01), Herron
patent: 5786595 (1998-07-01), Herron et al.

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