公开(公告)号：US10386512B2

公开(公告)日：2019-08-20

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

IPC: G06F19/00 ,  G01V1/28 ,  G01V1/48 ,  G01V1/50

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.

公开(公告)号：US10670755B2

公开(公告)日：2020-06-02

申请号：US15943513

申请日：2018-04-02

Applicant: Chevron U.S.A. Inc.

Inventor： Anandaroop Ray ,  Prasenjit Roy ,  James Magill ,  David Bartel ,  Reynaldo Cardona ,  Kabilan Krishnamurthy

IPC: G01V1/30 ,  G01V1/34

Abstract: Systems and methods for refining estimated effects of parameters on amplitudes are disclosed. Exemplary implementations may: (a) obtain ranges of parameter values for individual parameters within a subsurface region of interest; (b) generate a first model of the subsurface region of interest; (c) calculate a synthetic seismogram from the first model to determine corresponding amplitudes; (d) store results of applying the synthetic seismogram; (e) repeat steps (b)-(d) for multiple additional models; (f) obtain a subsurface distribution; (g) apply the subsurface distribution to the multiple models and the corresponding amplitudes; (h) generate a representation; and (i) display the representation.

公开(公告)号：US20190302294A1

公开(公告)日：2019-10-03

申请号：US15943513

申请日：2018-04-02

Applicant: Chevron U.S.A. Inc.

Inventor： Anandaroop Ray ,  Prasenjit Roy ,  Jim Magill ,  David Bartel ,  Reynaldo Cardona ,  Kabilan Krishnamurthy

IPC: G01V1/30 ,  G01V1/34

Abstract: Systems and methods for refining estimated effects of parameters on amplitudes are disclosed. Exemplary implementations may: (a) obtain ranges of parameter values for individual parameters within a subsurface region of interest; (b) generate a first model of the subsurface region of interest; (c) calculate a synthetic seismogram from the first model to determine corresponding amplitudes; (d) store results of applying the synthetic seismogram; (e) repeat steps (b)-(d) for multiple additional models; (f) obtain a subsurface distribution; (g) apply the subsurface distribution to the multiple models and the corresponding amplitudes; (h) generate a representation; and (i) display the representation.