Method to generate numerical pseudocores using borehole images, digital rock samples, and multi-point statistics
First Claim
1. A method for creating a numerical pseudocore model comprising:
- a) obtaining logging data from a reservoir that includes depth-defined intervals of the reservoir, and processing the logging data into a portion of at least one interpretable borehole image data having unidentified borehole image data;
b) examining one of the portion of the at least one interpretable borehole image data, other processed logging data or both to generate the unidentified borehole image data, then processing the generated unidentified borehole image data into the portion of the at least one interpretable borehole image data so as to generate at least one warped fullbore image data;
c) collecting one of at least one core from the reservoir, a portion of the logging data or both and generating a digital core data from one of the collected at least one core, the portion of logging data or both such that the generated digital core data represents one of features or structures of one or more depth-defined interval of the reservoir; and
d) processing a portion of the generated digital core data, the portion of at least one interpretable borehole image data or a portion of the logging data to generate realizations of the numerical pseudocore model.
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Abstract
Methods and systems for creating a numerical pseudocore model, comprising: a) obtaining logging data from a reservoir having depth-defined intervals of the reservoir, and processing the logging data into interpretable borehole image data having unidentified borehole image data; b) examining one of the interpretable borehole image data, other processed logging data or both to generate the unidentified borehole image data, processing the generated unidentified borehole image data into the interpretable borehole image data to generate warped fullbore image data; c) collecting one of a core from the reservoir, the logging data or both and generating a digital core data from one of the collected core, the logging data or both such that generated digital core data represents features of one or more depth-defined interval of the reservoir; and d) processing generated digital core data, interpretable borehole image data or the logging data to generate realizations of the numerical pseudocore model.
215 Citations
34 Claims
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1. A method for creating a numerical pseudocore model comprising:
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a) obtaining logging data from a reservoir that includes depth-defined intervals of the reservoir, and processing the logging data into a portion of at least one interpretable borehole image data having unidentified borehole image data; b) examining one of the portion of the at least one interpretable borehole image data, other processed logging data or both to generate the unidentified borehole image data, then processing the generated unidentified borehole image data into the portion of the at least one interpretable borehole image data so as to generate at least one warped fullbore image data; c) collecting one of at least one core from the reservoir, a portion of the logging data or both and generating a digital core data from one of the collected at least one core, the portion of logging data or both such that the generated digital core data represents one of features or structures of one or more depth-defined interval of the reservoir; and d) processing a portion of the generated digital core data, the portion of at least one interpretable borehole image data or a portion of the logging data to generate realizations of the numerical pseudocore model. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for creating a numerical pseudocore model comprising:
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a) obtaining logging data from a reservoir that includes depth-defined intervals of the reservoir, and processing the logging data into a portion of at least one interpretable borehole image data; b) examining one of the portion of the at least one interpretable borehole image data, other processed logging data or both to generate at least one warped fullbore image data; c) collecting one of at least one core from the reservoir, a portion of the logging data or both and generating a digital core data from one of the collected at least one core, the portion of logging data or both such that the generated digital core data represents one of features or structures of one or more depth-defined interval of the reservoir; and d) processing a portion of the generated digital core data, the portion of at least one interpretable borehole image data, the portion of the logging data or some combination thereof, to generate realizations of the numerical pseudocore model. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A system for creating a numerical pseudocore model comprising:
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a) obtaining logging data from a reservoir that includes depth-defined intervals of the reservoir, and processing the logging data into a portion of at least one interpretable borehole image data having unidentified borehole image data; b) examining one of the portion of the at least one interpretable borehole image data, other processed logging data or both to generate the unidentified borehole image data, then processing the generated unidentified borehole image data into the portion of the at least one interpretable borehole image data so as to generate at least one warped fullbore image data; c) collecting one of at least one core from the reservoir, a portion of the logging data or both and generating a digital core data from one of the collected at least one core, the portion of logging data or both such that the generated digital core data represents one of features or structures of one or more depth-defined interval of the reservoir; and d) processing a portion of the generated digital core data, the portion of at least one interpretable borehole image data, portion of the logging data or some combination thereof, to generate realizations of the numerical pseudocore model; wherein the generating of realization of the numerical pseudocore model includes using a multi-point statistics (MPS) algorithm to generate realizations of numerical pseudocores for two or more facies, so as to condition the realizations to match facies sizes and shapes observed in the portion of the at least one interpretable borehole image of the portion of the generated digital core data and the generated at least one warped fullbore image data.
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34. A system for creating a numerical pseudocore model comprising:
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a) obtaining logging data from a reservoir that includes depth-defined intervals of the reservoir, and processing the logging data into a portion of at least one interpretable borehole image data; b) examining one of the portion of the at least one interpretable borehole image data, other processed logging data or both to generate at least one warped fullbore image data; c) collecting one of at least one core from the reservoir, a portion of the logging data or both and generating a digital core data from one of the collected at least one core, the portion of logging data or both such that the generated digital core data represents one of features or structures of one or more depth-defined interval of the reservoir; and d) processing a portion of the generated digital core data, the portion of at least one interpretable borehole image data, the portion of the logging data or some combination thereof, to generate realizations of the numerical pseudocore model; wherein the generating of the digital core data consists of identifying facies from one of the collected at least one core or the portion of logging data, wherein the facies is from the group consisting of one of fractures, pores, vugs, conductive patches of rocks in a borehole wall of the reservoir, resistive patches of rocks in the borehole wall of the reservoir, bed boundaries or a rock matrix.
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Specification