
doi: 10.2172/834555 , 10.2172/790863
This project has completed the initially scheduled third year of the contract, and is beginning a fourth year, designed to expand upon the tech transfer aspects of the project. From the Stratton data set, demonstrated that an apparent correlation between attributes derived along `phantom' horizons are artifacts of isopach changes; only if the interpreter understands that the interpretation is based on this correlation with bed thickening or thinning, can reliable interpretations of channel horizons and facies be made. From the Boonsville data set , developed techniques to use conventional seismic attributes, including seismic facies generated under various neural network procedures, to subdivide regional facies determined from logs into productive and non-productive subfacies, and developed a method involving cross-correlation of seismic waveforms to provide a reliable map of the various facies present in the area. The Teal South data set provided a surprising set of data, leading us to develop a pressure-dependent velocity relationship and to conclude that nearby reservoirs are undergoing a pressure drop in response to the production of the main reservoir, implying that oil is being lost through their spill points, never to be produced. The Wamsutter data set led to the use of unconventional attributes including lateral incoherence and horizon-dependent impedance variations to indicate regions of former sand bars and current high pressure, respectively, and to evaluation of various upscaling routines.
Compartments, Pacific Ocean, Neural Networks, Monitoring, 550, 02 Petroleum, Velocity, Production, Impedance, Seismic Waves, Petroleum Deposits, Site Characterization, Hydrocarbons, Pressure Drop, Cables, Petroleum, Geophysics, Sand, Calibration, Manuals, Wave Forms, Seismic Surveys
Compartments, Pacific Ocean, Neural Networks, Monitoring, 550, 02 Petroleum, Velocity, Production, Impedance, Seismic Waves, Petroleum Deposits, Site Characterization, Hydrocarbons, Pressure Drop, Cables, Petroleum, Geophysics, Sand, Calibration, Manuals, Wave Forms, Seismic Surveys
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