Investigation of nanopore confinement on fluid flow in tight reservoirs

doi:10.1016/j.petrol.2016.11.005

CORC > 北京大学 > 工学院

	Investigation of nanopore confinement on fluid flow in tight reservoirs
	Zhang, Yuan ; Yu, Wei ; Sepehrnoori, Kamy ; Di, Yuan
刊名	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
	2017
关键词	Phase behavior Capillary pressure Nanopore size distribution Tight- oil Bakken
DOI	10.1016/j.petrol.2016.11.005
英文摘要	The nanopore confinement plays an important role in the phase behavior and well performance in tight oil reservoirs; it impacts the phase behavior, as well as the fluid transport. Conventional phase equilibrium model fails to accurately simulate the complex phase behavior in the nanopores due to large capillary pressure. In this study, we modify Peng-Robinson Equation of State (PREOS) to calculate the black-oil properties including solution gas-oil ratio, viscosity, and formation volume factor by considering the capillary equilibrium. Afterward, we perform a series of sensitivity studies to identify the critical parameters affecting well performance with and without the capillary pressure effect. Five parameters, which are matrix permeability, fracture conductivity, number of fracture, fracture half-length, and bottomhole pressure, are investigated. Finally, we apply this model to analyze the performance for an actual well from the Bakken formation. We divide the nanopore size distribution into five regions, which are randomly distributed in the reservoir model. The role of the nanopore size distribution on well performance analysis is examined in detail. This work provides an improved understanding of the capillary pressure effect on the phase equilibrium and well performance 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; 265-271; 150
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475472]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Yuan,Yu, Wei,Sepehrnoori, Kamy,et al. Investigation of nanopore confinement on fluid flow in tight reservoirs[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2017.
APA	Zhang, Yuan,Yu, Wei,Sepehrnoori, Kamy,&Di, Yuan.(2017).Investigation of nanopore confinement on fluid flow in tight reservoirs.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING.
MLA	Zhang, Yuan,et al."Investigation of nanopore confinement on fluid flow in tight reservoirs".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2017).