Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model

doi:10.1016/j.proeng.2015.11.293

IMECH-IR > 流固耦合系统力学重点实验室

	Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model
	Wan YZ; Liu YW(刘曰武); Ouyang WP; Niu CC; Han GF(韩国锋); Liu WH
发表期刊	Procedia Engineering
	2015
卷号	126 页码:512-516
ISSN	1877-7058
摘要	Based on the characteristics of fractures in naturally fractured reservoir and the discrete-fracture model, a fracture network numerical well test model was developed, which incorporated the fractures explicitly in the spatial domain. In two-dimensional problems, fractures were represented as one-dimensional line element and matrix space was discretized into linear triangular elements. Bottom hole pressure response curves and pressure field were obtained by solving the model equations with finite-element method. Through analyses of the bottom hole pressure curves and the fluid flow in pressure field, seven flow stages can be recognized on the curves, i.e. wellbore storage, transition, fracture linear flow, fracture network flow, matrix to fractures flow, system radial flow and boundary-dominated flow. Effects of reservoirs parameters, such as fracture conductivity, matrix permeability, fracture density and permeability anisotropy were studied. The analysis results demonstrated that fracture conductivity played a leading role in the fluid flow. Matrix permeability influenced the beginning time of flow from matrix to fractures. Fractures density was another important parameter controlling the flow. The fracture linear flow was covered under large fracture density. The pressure propagation was slower in the direction of larger fracture density. The same situation happened in the permeability anisotropy cases.
关键词	Discrete-fracture Model Fracture Network Numerical Well Test Finite-element Method Conductivity Fracture Density Permeability Anisotropy
DOI	10.1016/j.proeng.2015.11.293
收录类别	EI
语种	英语
课题组名称	LMFS水环境流体力学(LEM)
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/59402
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Wan YZ,Liu YW,Ouyang WP,et al. Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model[J]. Procedia Engineering,2015,126:512-516.
APA	Wan YZ,刘曰武,Ouyang WP,Niu CC,韩国锋,&Liu WH.(2015).Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model.Procedia Engineering,126,512-516.
MLA	Wan YZ,et al."Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model".Procedia Engineering 126(2015):512-516.

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