It is a given that carbonate mineral dissolution and deposition occur in a formation in
geologic time and are expected to some degree in carbon dioxide (CO2) floods. Water …

US7294829B2 - Method and apparatus for an improved formation density indicator using pulsed
neutron instruments - Google Patents US7294829B2 - Method and apparatus for an improved …

Accelerators have been integral to subsurface probing for decades. Tools with deuterium-
tritium (DT) generators and scintillators utilizing gamma rays from thermal neutron capture …

The paper discusses an assessment, using Monte Carlo modeling techniques, of the
advantages we could derive and challenges we would face in utilizing multiple sensors with …

Predicting gas saturation of a formation using neural networks. At least some of the
illustrative embodiments include obtaining a gamma count rate decay curve one each for a …

ChevronTexaco has developed leading edge data acquisition and interpretation strategies
to monitor steamfloods in Sumatra, Indonesia and San Joaquin Valley, California. This …

US 2011 FO186721 A1 Aug. 4, 2011(57) ABSTRACT Related US Application Data A
nuclear logging tool calibration system and method. At (60) Provisional application No …

BACKGROUND The present disclosure relates generally to equipment uti lized and
operations performed in conjunction with Subterra nean wells and, in embodiments …

Processing gamma count rate decay curves using neural networks. At least some of the
illustrative embodiments are methods comprising obtaining a gamma count rate decay curve …

As oil fields mature, progressively more effort must be devoted to diagnosing production and
reservoir problems and to finding cost-effective solutions for those problems. One of the key …