Chevron U.s.a. Inc.

Dileep K Tiwary

Christopher Hugh Skelt

Joseph Paul Stefani

Reynaldo Cardona

Prasenjit Roy

Kabilan Krishnamurthy

Mingya Chen

Damian O'Grady

Miguel O Ascanio Regalado

Aygul Kostinovsky

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.

System and method for petro-elastic modeling

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.

System and method for analysis of depositional settings of subsurface reservoirs

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Katy, TX, United States of America

Dileep K Tiwary