Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation

Abstract To establish the relationship among reservoir characteristics and rock physical parameters, we construct the well-bore rock physical models firstly, considering the influence factors, such as mineral composition, shale content, porosity, fluid type and saturation. Then with analyzing the ch...

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Autores principales:	Hai-ting Zhou, De-yong Li, Xian-tai Liu, Yu-shan Du, Wei Gong
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	Tight sandstone reservoir Sweet spot Sensitive elastic parameter Well-bore rock physical simulation Rock physics template Pre-stack seismic inversion Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/c8db13080ea240218e3de1015de6c512
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spelling	oai:doaj.org-article:c8db13080ea240218e3de1015de6c5122021-12-02T15:34:00ZSweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation10.1007/s12182-019-00393-11672-51071995-8226https://doaj.org/article/c8db13080ea240218e3de1015de6c5122019-10-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-00393-1https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract To establish the relationship among reservoir characteristics and rock physical parameters, we construct the well-bore rock physical models firstly, considering the influence factors, such as mineral composition, shale content, porosity, fluid type and saturation. Then with analyzing the change rules of elastic parameters along with the above influence factors and the cross-plots among elastic parameters, the sensitive elastic parameters of tight sandstone reservoir are determined, and the rock physics template of sweet spot is constructed to guide pre-stack seismic inversion. The results show that velocity ratio and Poisson impedance are the most sensitive elastic parameters to indicate the lithologic and gas-bearing properties of sweet spot in tight sandstone reservoir. The high-quality sweet spot is characterized by the lower velocity ratio and Poisson impedance. Finally, the actual seismic data are selected to predict the sweet spots in tight sandstone gas reservoirs, so as to verify the validity of the rock physical simulation results. The significant consistency between the relative logging curves and inversion results in different wells implies that the utilization of well-bore rock physical simulation can guide the prediction of sweet spot in tight sandstone gas reservoirs.Hai-ting ZhouDe-yong LiXian-tai LiuYu-shan DuWei GongKeAi Communications Co., Ltd.articleTight sandstone reservoirSweet spotSensitive elastic parameterWell-bore rock physical simulationRock physics templatePre-stack seismic inversionScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 6, Pp 1285-1300 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Tight sandstone reservoir Sweet spot Sensitive elastic parameter Well-bore rock physical simulation Rock physics template Pre-stack seismic inversion Science Q Petrology QE420-499
spellingShingle	Tight sandstone reservoir Sweet spot Sensitive elastic parameter Well-bore rock physical simulation Rock physics template Pre-stack seismic inversion Science Q Petrology QE420-499 Hai-ting Zhou De-yong Li Xian-tai Liu Yu-shan Du Wei Gong Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
description	Abstract To establish the relationship among reservoir characteristics and rock physical parameters, we construct the well-bore rock physical models firstly, considering the influence factors, such as mineral composition, shale content, porosity, fluid type and saturation. Then with analyzing the change rules of elastic parameters along with the above influence factors and the cross-plots among elastic parameters, the sensitive elastic parameters of tight sandstone reservoir are determined, and the rock physics template of sweet spot is constructed to guide pre-stack seismic inversion. The results show that velocity ratio and Poisson impedance are the most sensitive elastic parameters to indicate the lithologic and gas-bearing properties of sweet spot in tight sandstone reservoir. The high-quality sweet spot is characterized by the lower velocity ratio and Poisson impedance. Finally, the actual seismic data are selected to predict the sweet spots in tight sandstone gas reservoirs, so as to verify the validity of the rock physical simulation results. The significant consistency between the relative logging curves and inversion results in different wells implies that the utilization of well-bore rock physical simulation can guide the prediction of sweet spot in tight sandstone gas reservoirs.
format	article
author	Hai-ting Zhou De-yong Li Xian-tai Liu Yu-shan Du Wei Gong
author_facet	Hai-ting Zhou De-yong Li Xian-tai Liu Yu-shan Du Wei Gong
author_sort	Hai-ting Zhou
title	Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
title_short	Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
title_full	Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
title_fullStr	Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
title_full_unstemmed	Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
title_sort	sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/c8db13080ea240218e3de1015de6c512
work_keys_str_mv	AT haitingzhou sweetspotpredictionintightsandstonereservoirbasedonwellborerockphysicalsimulation AT deyongli sweetspotpredictionintightsandstonereservoirbasedonwellborerockphysicalsimulation AT xiantailiu sweetspotpredictionintightsandstonereservoirbasedonwellborerockphysicalsimulation AT yushandu sweetspotpredictionintightsandstonereservoirbasedonwellborerockphysicalsimulation AT weigong sweetspotpredictionintightsandstonereservoirbasedonwellborerockphysicalsimulation
_version_	1718386990887469056

Sweet spot prediction in tight sandstone reservoir based on well-bore rock physical simulation

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