A Comprehensive Numerical Model for Simulating Fluid Transport in   Nanopores

doi:10.1038/srep40507

CORC > 北京大学 > 工学院

	A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores
	Zhang, Yuan ; Yu, Wei ; Sepehrnoori, Kamy ; Di, Yuan
刊名	SCIENTIFIC REPORTS
	2017
关键词	CAPILLARY-PRESSURE SHALES RESERVOIR
DOI	10.1038/srep40507
英文摘要	Since a large amount of nanopores exist in tight oil reservoirs, fluid transport in nanopores is complex due to large capillary pressure. Recent studies only focus on the effect of nanopore confinement on single-well performance with simple planar fractures in tight oil reservoirs. Its impacts on multi-well performance with complex fracture geometries have not been reported. In this study, a numerical model was developed to investigate the effect of confined phase behavior on cumulative oil and gas production of four horizontal wells with different fracture geometries. Its pore sizes were divided into five regions based on nanopore size distribution. Then, fluid properties were evaluated under different levels of capillary pressure using Peng-Robinson equation of state. Afterwards, an efficient approach of Embedded Discrete Fracture Model (EDFM) was applied to explicitly model hydraulic and natural fractures in the reservoirs. Finally, three fracture geometries, i.e. non-planar hydraulic fractures, nonplanar hydraulic fractures with one set natural fractures, and non-planar hydraulic fractures with two sets natural fractures, are evaluated. The multi-well performance with confined phase behavior is analyzed with permeabilities of 0.01 md and 0.1 md. This work improves the analysis of capillarity effect on multi-well performance with complex fracture geometries in tight oil reservoirs.; National Natural Science Foundation of China [51674010]; National Science and Technology Major Project of China [2016ZX05014]; China Scholarship Council (CSC) [201506010205]; SCI(E); ARTICLE; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475677]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Yuan,Yu, Wei,Sepehrnoori, Kamy,et al. A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores[J]. SCIENTIFIC REPORTS,2017.
APA	Zhang, Yuan,Yu, Wei,Sepehrnoori, Kamy,&Di, Yuan.(2017).A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores.SCIENTIFIC REPORTS.
MLA	Zhang, Yuan,et al."A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores".SCIENTIFIC REPORTS (2017).