The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China

Based on logging, seismic, fracturing and production data from 301 productive wells in Longmaxi Formation in Changning shale gas field of southern Sichuan basin, the various influence factors of shale gas stimulated potential have been analyzed to carry out the correlation study with estimated ultim...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Cheng Shen, Jinzhou Zhao, Jun Xie, Yongqiang Fu, Jianfa Wu, Lan Ren
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	shale gas stimulated potential matrix brittleness fracture propagation enrichment and exploitation main factors Science Q
Acceso en línea:	https://doaj.org/article/fce7138830f340d09b875a80abd7bdfa
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:fce7138830f340d09b875a80abd7bdfa
record_format	dspace
spelling	oai:doaj.org-article:fce7138830f340d09b875a80abd7bdfa2021-11-05T14:46:03ZThe Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China2296-646310.3389/feart.2021.738668https://doaj.org/article/fce7138830f340d09b875a80abd7bdfa2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.738668/fullhttps://doaj.org/toc/2296-6463Based on logging, seismic, fracturing and production data from 301 productive wells in Longmaxi Formation in Changning shale gas field of southern Sichuan basin, the various influence factors of shale gas stimulated potential have been analyzed to carry out the correlation study with estimated ultimate recovery (EUR) of the same fracturing operation intensity to fully clarify the main controlling factors for shale gas stimulated potential. The results show that matrix brittleness, fracture propagation and reservoir properties are the 3 key secondary potentials that control shale gas stimulation potential. The matrix brittleness is controlled by elastic modulus, Poisson’s ratio, Type I and II fracture toughness, which reflects the uniformity of hydraulic fracture propagation. Fracture propagation is controlled by critical net pressure, which reflects the scale of hydraulic fracture propagation. Reservoir properties are controlled by porosity, total organic carbon content (TOC) and horizontal interval differences, which reflect the enrichment conditions and dynamic production capacity of reservoir resources. The matrix brittleness index, fracture propagation index, reservoir properties index and their combined stimulated potential index were formed by using the above 7 parameters to verify and apply the wells in Changning shale gas field. Results show that the matrix brittleness index and length-width ratio of hydraulic fracture was significantly negative correlation, the fracture propagation index and stimulated reservoir volume (SRV) were significantly positive correlation, stimulated potential index was developed taking into account enrichment & exploitation potential. In areas where the value is greater than 0.5, increasing the fracturing scale can effectively improve the well productivity; in areas less than 0.5, increasing the fracturing scale has an upper limit on the increase of productivity, so the physical properties of the reservoir itself play a significant role in controlling the production of shale gas wells.Cheng ShenJinzhou ZhaoJun XieYongqiang FuJianfa WuLan RenFrontiers Media S.A.articleshale gasstimulated potentialmatrix brittlenessfracture propagationenrichment and exploitationmain factorsScienceQENFrontiers in Earth Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	shale gas stimulated potential matrix brittleness fracture propagation enrichment and exploitation main factors Science Q
spellingShingle	shale gas stimulated potential matrix brittleness fracture propagation enrichment and exploitation main factors Science Q Cheng Shen Jinzhou Zhao Jun Xie Yongqiang Fu Jianfa Wu Lan Ren The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China
description	Based on logging, seismic, fracturing and production data from 301 productive wells in Longmaxi Formation in Changning shale gas field of southern Sichuan basin, the various influence factors of shale gas stimulated potential have been analyzed to carry out the correlation study with estimated ultimate recovery (EUR) of the same fracturing operation intensity to fully clarify the main controlling factors for shale gas stimulated potential. The results show that matrix brittleness, fracture propagation and reservoir properties are the 3 key secondary potentials that control shale gas stimulation potential. The matrix brittleness is controlled by elastic modulus, Poisson’s ratio, Type I and II fracture toughness, which reflects the uniformity of hydraulic fracture propagation. Fracture propagation is controlled by critical net pressure, which reflects the scale of hydraulic fracture propagation. Reservoir properties are controlled by porosity, total organic carbon content (TOC) and horizontal interval differences, which reflect the enrichment conditions and dynamic production capacity of reservoir resources. The matrix brittleness index, fracture propagation index, reservoir properties index and their combined stimulated potential index were formed by using the above 7 parameters to verify and apply the wells in Changning shale gas field. Results show that the matrix brittleness index and length-width ratio of hydraulic fracture was significantly negative correlation, the fracture propagation index and stimulated reservoir volume (SRV) were significantly positive correlation, stimulated potential index was developed taking into account enrichment & exploitation potential. In areas where the value is greater than 0.5, increasing the fracturing scale can effectively improve the well productivity; in areas less than 0.5, increasing the fracturing scale has an upper limit on the increase of productivity, so the physical properties of the reservoir itself play a significant role in controlling the production of shale gas wells.
format	article
author	Cheng Shen Jinzhou Zhao Jun Xie Yongqiang Fu Jianfa Wu Lan Ren
author_facet	Cheng Shen Jinzhou Zhao Jun Xie Yongqiang Fu Jianfa Wu Lan Ren
author_sort	Cheng Shen
title	The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China
title_short	The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China
title_full	The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China
title_fullStr	The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China
title_full_unstemmed	The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China
title_sort	main controlling factors and evaluation method of the reservoir stimulation potential: a case study of the changning shale gas field, southern sichuan basin, sw china
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/fce7138830f340d09b875a80abd7bdfa
work_keys_str_mv	AT chengshen themaincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT jinzhouzhao themaincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT junxie themaincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT yongqiangfu themaincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT jianfawu themaincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT lanren themaincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT chengshen maincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT jinzhouzhao maincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT junxie maincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT yongqiangfu maincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT jianfawu maincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina AT lanren maincontrollingfactorsandevaluationmethodofthereservoirstimulationpotentialacasestudyofthechangningshalegasfieldsouthernsichuanbasinswchina
_version_	1718444265690890240

The Main Controlling Factors and Evaluation Method of the Reservoir Stimulation Potential: A Case Study of the Changning Shale Gas Field, Southern Sichuan Basin, SW China

Ejemplares similares