A Workflow for Static Reservoir Modeling Guided by Seismic Data in a Fluvial System |
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| Authors: | Mohammad Koneshloo Saman A Aryana Dario Grana John W Pierre |
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| Institution: | 1.Department of Chemical and Petroleum Engineering,University of Wyoming,Laramie,USA;2.Department of Geology and Geophysics,University of Wyoming,Laramie,USA;3.Department of Electrical and Computer Engineering,University of Wyoming,Laramie,USA |
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| Abstract: | Realistic and accurate static geologic models are an essential element needed to predict the behavior of subsurface reservoirs and play an important role in petroleum engineering. Data used in the development of a static geologic model are gathered from various sources, such as seismic, log, and core data, each of them providing information on different physical properties of interest and with varying degrees of resolution. Compiling all data from various sources into a single representation of the subsurface formation of interest is a daily challenge for many petroleum geologists and engineers. This paper describes a framework to develop and select process-mimicking models that are consistent with available seismic attributes, namely impedance. Using a process-mimicking modeling package, 75 models of a fluvial meandering system are generated, one of which is chosen as the “true” model and masked thereafter. The implemented selection method relies on the degree of similarity in the histogram of representations of clusters of all possible patterns in the seismic impedance domain based on each process-mimicking model and that of the “true” model at several resolutions. The results demonstrate the effectiveness of the use of a weighted average divergence distance across multiple levels to select process-mimicking models that honor seismic data the best. |
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