Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Reexamination Certificate
2007-08-07
2007-08-07
Porta, David (Department: 2884)
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
C250S261000, C702S008000
Reexamination Certificate
active
10955867
ABSTRACT:
A well logging instrument including a plurality of detectors having different precisions and accuracies, the more precise detectors generally having lower accuracies. The detectors are responsive to the interaction of radiation from a suitable source on the instrument with earth formations. Outputs from the plurality of detectors are smoothed and combined to provide processed measurements with improved accuracy and precision.
REFERENCES:
patent: 4445033 (1984-04-01), Preeg et al.
patent: 4645926 (1987-02-01), Randall
patent: 4656354 (1987-04-01), Randall
patent: 4668863 (1987-05-01), Gray et al.
patent: 4909075 (1990-03-01), Flaum et al.
patent: 5808298 (1998-09-01), Mickael
patent: 5973321 (1999-10-01), Schmidt
patent: 6064063 (2000-05-01), Mickael
patent: 6124590 (2000-09-01), Mickael
patent: 6566649 (2003-05-01), Mickael
patent: 2003/0178560 (2003-09-01), Odom et al.
patent: 2004/0222368 (2004-11-01), Odom et al.
D. K. Steinman et al.;Dual-Burst Thermal Decay Time Logging Principles, SPE Formation Evaluation, Jun. 1988, pp. 377-385.
R.E. Plasek et al.;Improved Pulsed Neutron Capture Logging with Slim Carbon-Oxygen Tools: Methodology, SPE 30598, SPE Annual Technical Conference and Exhibition, Oct. 22-25, 1995.
H.D. Smith, Jr. et al.;Obtaining Intrinsic Formation Capture Cross Sections with Pulsed Neutron Capture Logging Tools, SPWLA Twenty-Ninth Annual Logging Symposium, Jun. 5-8, 1988, pp. 1-24.
Richard C. Odom et al.;Quantitative Use of Computer Models in Calibration of the Computalog Pulsed Neutron Thermal Decay Tool(PND), SPWLA 33rd Annual Logging Symposium, Jun. 14-17, 1992, pp. 1-25.
B.T. Murdoch et al.,Diffusion Corrections to Pulsed Neutron Capture Logs: Methodology, SPWLA 31st Annual Logging Symposium, Jun. 24-27, 1990, pp. 1-14, 17 Figs.
S. Mandayam et al.;Wavelet-Based permeability compensation technique for characterizing magnetic flux leakage images, NDT&E International, vol. 30, No. 5, pp. 297-303, 1997.
Gilchrist Allen
Trcka Darryl E.
Porta David
Rosenberger Frederick F.
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