Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1996-02-12
1997-03-04
Tokar, Michael J.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
2502692, G01V 510
Patent
active
056082150
ABSTRACT:
Apparatus for determining the density of underground formations surrounding a borehole, such as a wireline logging tool or a logging-while-drilling tool, includes a high energy neutron source for irradiating the formations from within the borehole and a detector which detects gamma rays in the borehole resulting from the irradiation of the formations with high energy neutrons. The detected gamma rays are analyzed to determine the density of the formations.
REFERENCES:
patent: 4501964 (1985-02-01), Arnold
patent: 4596926 (1986-06-01), Coope
patent: 4661700 (1987-04-01), Holenka
patent: 4698501 (1987-10-01), Paske
patent: 4705944 (1987-11-01), Coope
patent: 4760252 (1988-07-01), Albats et al.
patent: 4814609 (1989-03-01), Wraight et al.
patent: 4879463 (1989-11-01), Wraight et al.
patent: 4883956 (1989-11-01), Melcher et al.
patent: 4972082 (1990-11-01), Loomis et al.
patent: 5051581 (1991-09-01), Hertzog et al.
patent: 5091644 (1992-02-01), Minette
patent: 5235185 (1993-08-01), Albats et al.
patent: 5235285 (1993-08-01), Clark et al.
patent: 5397893 (1995-03-01), Minette
Well Logging for Earth Scientists by Darwin V. Ellis, 1987 Elsevier Science Publishing Co., Inc., pp. 204-212, 418-425.
Richard Odom et al., "A New 1.625" Diameter Pulsed Neutron Capture and Inelastic/Capture Spectral Combination System Provides Answers in Complex Reservoirs", Paper O, Transactions of the SPWLA35th Annual Logging Symposium, Jun. 19-22, 1994.
R. D. Felder, "Advances in Openhole Well Logging," Journal of Petroleum Technology (Aug. 1994), pp. 693-701.
R. D. Wilson, "Bulk Density Logging With High Energy Gammas Produced by Fast Neutron Reactions With Formation Oxygen Atoms," Paper NSS11-01, presented at the 1995 IEEE Nuclear Science Symposium, Oct. 21-28, San Francisco. [proceedings not yet published].
Hanig Richard
Hyden Martin
Kanak Wayne I.
Schlumberger Technology Corporation
Tokar Michael J.
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