Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling

Abstract We present a workflow linking coupled fluid-flow and geomechanical simulation with seismic modelling to predict seismic anisotropy induced by non-hydrostatic stress changes. We generate seismic models from coupled simulations to examine the relationship between reservoir geometry, stress pa...

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Autores principales:	D. A. Angus, Q. J. Fisher, J. M. Segura, J. P. Verdon, J.-M. Kendall, M. Dutko, A. J. L. Crook
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2016
Materias:	Coupled fluid-flow/geomechanics Reservoir characterization Seismic anisotropy Stress path Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/ea0fa5a056634b7bb93e3de8018f2585
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spelling	oai:doaj.org-article:ea0fa5a056634b7bb93e3de8018f25852021-12-02T02:23:28ZReservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling10.1007/s12182-016-0126-11672-51071995-8226https://doaj.org/article/ea0fa5a056634b7bb93e3de8018f25852016-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-016-0126-1https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract We present a workflow linking coupled fluid-flow and geomechanical simulation with seismic modelling to predict seismic anisotropy induced by non-hydrostatic stress changes. We generate seismic models from coupled simulations to examine the relationship between reservoir geometry, stress path and seismic anisotropy. The results indicate that geometry influences the evolution of stress, which leads to stress-induced seismic anisotropy. Although stress anisotropy is high for the small reservoir, the effect of stress arching and the ability of the side-burden to support the excess load limit the overall change in effective stress and hence seismic anisotropy. For the extensive reservoir, stress anisotropy and induced seismic anisotropy are high. The extensive and elongate reservoirs experience significant compaction, where the inefficiency of the developed stress arching in the side-burden cannot support the excess load. The elongate reservoir displays significant stress asymmetry, with seismic anisotropy developing predominantly along the long-edge of the reservoir. We show that the link between stress path parameters and seismic anisotropy is complex, where the anisotropic symmetry is controlled not only by model geometry but also the nonlinear rock physics model used. Nevertheless, a workflow has been developed to model seismic anisotropy induced by non-hydrostatic stress changes, allowing field observations of anisotropy to be linked with geomechanical models.D. A. AngusQ. J. FisherJ. M. SeguraJ. P. VerdonJ.-M. KendallM. DutkoA. J. L. CrookKeAi Communications Co., Ltd.articleCoupled fluid-flow/geomechanicsReservoir characterizationSeismic anisotropyStress pathScienceQPetrologyQE420-499ENPetroleum Science, Vol 13, Iss 4, Pp 669-684 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Coupled fluid-flow/geomechanics Reservoir characterization Seismic anisotropy Stress path Science Q Petrology QE420-499
spellingShingle	Coupled fluid-flow/geomechanics Reservoir characterization Seismic anisotropy Stress path Science Q Petrology QE420-499 D. A. Angus Q. J. Fisher J. M. Segura J. P. Verdon J.-M. Kendall M. Dutko A. J. L. Crook Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
description	Abstract We present a workflow linking coupled fluid-flow and geomechanical simulation with seismic modelling to predict seismic anisotropy induced by non-hydrostatic stress changes. We generate seismic models from coupled simulations to examine the relationship between reservoir geometry, stress path and seismic anisotropy. The results indicate that geometry influences the evolution of stress, which leads to stress-induced seismic anisotropy. Although stress anisotropy is high for the small reservoir, the effect of stress arching and the ability of the side-burden to support the excess load limit the overall change in effective stress and hence seismic anisotropy. For the extensive reservoir, stress anisotropy and induced seismic anisotropy are high. The extensive and elongate reservoirs experience significant compaction, where the inefficiency of the developed stress arching in the side-burden cannot support the excess load. The elongate reservoir displays significant stress asymmetry, with seismic anisotropy developing predominantly along the long-edge of the reservoir. We show that the link between stress path parameters and seismic anisotropy is complex, where the anisotropic symmetry is controlled not only by model geometry but also the nonlinear rock physics model used. Nevertheless, a workflow has been developed to model seismic anisotropy induced by non-hydrostatic stress changes, allowing field observations of anisotropy to be linked with geomechanical models.
format	article
author	D. A. Angus Q. J. Fisher J. M. Segura J. P. Verdon J.-M. Kendall M. Dutko A. J. L. Crook
author_facet	D. A. Angus Q. J. Fisher J. M. Segura J. P. Verdon J.-M. Kendall M. Dutko A. J. L. Crook
author_sort	D. A. Angus
title	Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
title_short	Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
title_full	Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
title_fullStr	Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
title_full_unstemmed	Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
title_sort	reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling
publisher	KeAi Communications Co., Ltd.
publishDate	2016
url	https://doaj.org/article/ea0fa5a056634b7bb93e3de8018f2585
work_keys_str_mv	AT daangus reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling AT qjfisher reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling AT jmsegura reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling AT jpverdon reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling AT jmkendall reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling AT mdutko reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling AT ajlcrook reservoirstresspathandinducedseismicanisotropyresultsfromlinkingcoupledfluidflowgeomechanicalsimulationwithseismicmodelling
_version_	1718402501893423104

Reservoir stress path and induced seismic anisotropy: results from linking coupled fluid-flow/geomechanical simulation with seismic modelling

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