Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent
1997-01-31
1998-11-10
McElheny, Jr., Donald E.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
702 16, 702 12, 702 13, G06F 1900
Patent
active
058358838
ABSTRACT:
A method and apparatus for predicting distribution of reservoir permeability or porosity and pseudo relative permeability using well data and 3-D seismic data are disclosed, where a preferred first step in the method models the reservoir property of interest to provide model logs which are expressible as continuous curves of a reservoir property as a function of depth. The next step selects individual data points on the continuous curves traversing a reservoir layer and determines permeable trends for a multitude of column-like subvolumes which each enclose a portion of the selected data points. The subvolumes are then divided into a desired number of horizontal slices, with each slice containing a number of the model data points. An average value for the property in each slice is calculated, and the average values are plotted versus depth for each subvolume, thus providing a derived curve of depth versus the reservoir property. The thus derived plots are compared with typical trend curves for layering in a reservoir, and the typical trend curve most nearly matching the derived plot is selected for representing the subvolume. A display of the subvolume trends demonstrates vertical distribution of the property in the reservoir, and can be used to direct the arrangement of pseudo relative permeability throughout a reservoir simulation model.
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U.S. Patent Application Serial No. 08/457,929, filed Jun. 1, 1995.
Butler Edgar L.
Neff Dennis B.
Runnestrand Scott A.
Vienot Michael E.
Bogatie George E.
McElheny Jr. Donald E.
Phillips Petroleum Company
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