Flowshot technique

Details Flowshot technique Flowshot technique

2007-03-06

2007-03-06

Hannaher, Constantine (Department: 2884)

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

Reexamination Certificate

active

10879620

ABSTRACT:
A pulsed neutron source irradiates an earth formation. The irradiation produces N16from O16in a fluid in the borehole, and the gamma rays produced by the subsequent decay of N16are detected by a plurality of spaced apart detectors. The count rates of the detectors are accumulated over a time sampling interval to produce temporal signals. Processing of the temporal signals using correlation, differentiation and/or semblance techniques is used for determination of the flow velocity of one or more fluids in the borehole.

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patent: 4503328 (1985-03-01), Neufeld
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patent: 5404752 (1995-04-01), Chace et al.
patent: 5461909 (1995-10-01), Arnold
patent: 6023443 (2000-02-01), Dubinsky et al.
Statement of Stephen Riley not a publication.

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