Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data

Hydraulic fracturing technology has become a key technology for the development of low-permeability/tight oil and gas reservoirs. The evaluation on the postfracturing effect is imperative to the formulation and implementation of the fracturing and development plan. Based on the characteristics of th...

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Autores principales:	Debin Xia, Zhengming Yang, Daolun Li, Yapu Zhang, Ying He, Yutian Luo, Anshun Zhang, Wenming Wang, Xinli Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/56ce3a29e87548a79400827fd1330580
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spelling	oai:doaj.org-article:56ce3a29e87548a79400827fd13305802021-11-15T01:19:51ZEvaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data1468-812310.1155/2021/9952719https://doaj.org/article/56ce3a29e87548a79400827fd13305802021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/9952719https://doaj.org/toc/1468-8123Hydraulic fracturing technology has become a key technology for the development of low-permeability/tight oil and gas reservoirs. The evaluation on the postfracturing effect is imperative to the formulation and implementation of the fracturing and development plan. Based on the characteristics of the flow in fracture network after a large-scale hydraulic fracturing, a numerical method for evaluating the effect of fracturing in vertical well was established. This study conducts postfracturing effect evaluations to block C Oilfield’s wells that underwent conventional fracturing and volumetric fracturing, respectively, proposes the definition of fracture network conductivity and its relationship with cumulative production, and analyzes the fracturing construction parameters. The results suggest that the conventional fracturing can only form a single fracture instead of a stimulated reservoir volume (SRV) region. However, the volumetric fracturing transformation can form a complex fracture network system and SRV region and meanwhile bring obvious increase in the production. The effective time lasts for a longer period, and the increase of average daily oil is 2.2 times more than that of conventional fracturing. Additionally, with the progress of the production, the SRV area within the core region of the volume transformation gradually decreased from 6664.84 m2 to 4414.45 m2; the SRV area of the outer region decreased from 7913.5 m2 to 5391.3 m2. As the progress develops, the equivalent permeability and the area of the fracture gradually decrease as the fracturing effect gradually weakens, and so does the conductivity of the network decreasing exponentially; a good correlation is observed between the conductivity of the fracture network, the cumulative production, and fracturing construction parameters, which can serve as the evaluation parameters for the fracturing effects and the basis for fracturing productivity prediction and provide a guidance for fracturing optimization design.Debin XiaZhengming YangDaolun LiYapu ZhangYing HeYutian LuoAnshun ZhangWenming WangXinli ZhaoHindawi-WileyarticleGeologyQE1-996.5ENGeofluids, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geology QE1-996.5
spellingShingle	Geology QE1-996.5 Debin Xia Zhengming Yang Daolun Li Yapu Zhang Ying He Yutian Luo Anshun Zhang Wenming Wang Xinli Zhao Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data
description	Hydraulic fracturing technology has become a key technology for the development of low-permeability/tight oil and gas reservoirs. The evaluation on the postfracturing effect is imperative to the formulation and implementation of the fracturing and development plan. Based on the characteristics of the flow in fracture network after a large-scale hydraulic fracturing, a numerical method for evaluating the effect of fracturing in vertical well was established. This study conducts postfracturing effect evaluations to block C Oilfield’s wells that underwent conventional fracturing and volumetric fracturing, respectively, proposes the definition of fracture network conductivity and its relationship with cumulative production, and analyzes the fracturing construction parameters. The results suggest that the conventional fracturing can only form a single fracture instead of a stimulated reservoir volume (SRV) region. However, the volumetric fracturing transformation can form a complex fracture network system and SRV region and meanwhile bring obvious increase in the production. The effective time lasts for a longer period, and the increase of average daily oil is 2.2 times more than that of conventional fracturing. Additionally, with the progress of the production, the SRV area within the core region of the volume transformation gradually decreased from 6664.84 m2 to 4414.45 m2; the SRV area of the outer region decreased from 7913.5 m2 to 5391.3 m2. As the progress develops, the equivalent permeability and the area of the fracture gradually decrease as the fracturing effect gradually weakens, and so does the conductivity of the network decreasing exponentially; a good correlation is observed between the conductivity of the fracture network, the cumulative production, and fracturing construction parameters, which can serve as the evaluation parameters for the fracturing effects and the basis for fracturing productivity prediction and provide a guidance for fracturing optimization design.
format	article
author	Debin Xia Zhengming Yang Daolun Li Yapu Zhang Ying He Yutian Luo Anshun Zhang Wenming Wang Xinli Zhao
author_facet	Debin Xia Zhengming Yang Daolun Li Yapu Zhang Ying He Yutian Luo Anshun Zhang Wenming Wang Xinli Zhao
author_sort	Debin Xia
title	Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data
title_short	Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data
title_full	Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data
title_fullStr	Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data
title_full_unstemmed	Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data
title_sort	evaluation method of the vertical well hydraulic fracturing effect based on production data
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/56ce3a29e87548a79400827fd1330580
work_keys_str_mv	AT debinxia evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT zhengmingyang evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT daolunli evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT yapuzhang evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT yinghe evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT yutianluo evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT anshunzhang evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT wenmingwang evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata AT xinlizhao evaluationmethodoftheverticalwellhydraulicfracturingeffectbasedonproductiondata
_version_	1718428922978238464

Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data

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