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公开(公告)号：US20180038974A1
公开(公告)日：2018-02-08
申请号：US15667709
申请日：2017-08-03
Applicant: CHEVRON U.S.A. INC.
Inventor： Prasenjit ROY , Kabilan KRISHNAMURTHY , Christopher H. SKELT , Joseph P. STEFANI , Dileep K. TIWARY
CPC classification number: G01V1/282 , G01V1/48 , G01V1/50 , G01V2210/62 , G01V2210/624 , G01V2210/66
Abstract: A method is described for creating a petro-elastic model including receiving, at a computer processor, well log data; computing in situ rock properties; calculating dry frame moduli for a range of porosities based on a rock physics model such as a modified critical porosity model; performing fluid substitutions and computing elastic properties by statistical sampling for the range of porosities; creating a petro-elastic model in a seismic domain; and identifying and producing target hydrocarbon reservoirs based on the petro-elastic model. The method may be executed by a computer system.
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公开(公告)号：US20180052249A1
公开(公告)日：2018-02-22
申请号：US15242688
申请日：2016-08-22
Applicant: CHEVRON U.S.A. INC.
Inventor： Mingya CHEN , Damian O'GRADY , Miguel O. ASCANIO REGALADO , Dileep K. TIWARY , Reynaldo CARDONA , Aygul KOSTINOVSKY
Abstract: A method is described for generating an improved digital image for a subsurface volume of interest that allows analysis of the depositional settings of rock facies in a subsurface volume of interest. The method may include identifying at least three different rock facies in the well log data; estimating a compaction trend for each of the at least three rock facies identified in the well log data to create at least three compaction trends; transforming the velocity model to produce a trend-match volume using the at least three compaction trends; and superimposing the trend-match volume and the seismic image to generate a digital image containing information regarding both structural features and stratigraphic features of the subsurface volume of interest. The method may be executed by a computer system.
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