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Title: Numerical investigation of a coupled moving boundary model of radial flow in low-permeable stress-sensitive reservoir with threshold pressure gradient
Author: Liu WC(刘文超); Liu YW(刘曰武); Niu CC(牛丛丛); Han GF(韩国锋); Wan YZ(万义钊)
Source: CHINESE PHYSICS B
Issued Date: 2016-02
Volume: 25, Issue:2, Pages:24701
Abstract: The threshold pressure gradient and formation stress-sensitive effect as the two prominent physical phenomena in the development of a low-permeable reservoir are both considered here for building a new coupled moving boundary model of radial flow in porous medium. Moreover, the wellbore storage and skin effect are both incorporated into the inner boundary conditions in the model. It is known that the new coupled moving boundary model has strong nonlinearity. A coordinate transformation based fully implicit finite difference method is adopted to obtain its numerical solutions. The involved coordinate transformation can equivalently transform the dynamic flow region for the moving boundary model into a fixed region as a unit circle, which is very convenient for the model computation by the finite difference method on fixed spatial grids. By comparing the numerical solution obtained from other different numerical method in the existing literature, its validity can be verified. Eventually, the effects of permeability modulus, threshold pressure gradient, wellbore storage coefficient, and skin factor on the transient wellbore pressure, the derivative, and the formation pressure distribution are analyzed respectively.
Keyword: threshold pressure gradient ; stress-sensitive effect ; wellbore storage ; skin effect
Language: 英语
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: Liu, YW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Correspondent Email: liuyuewulxs@126.com
DOI: 10.1088/1674-1056/25/2/024701
Related URLs: 查看原文
DOC Type: 期刊论文
WOS Subject: Physics, Multidisciplinary
WOS Subject Extended: Physics
WOS Keyword Plus: SHEAR BANDS ; INELASTIC DEFORMATION ; SURFACE-TREATMENT ; AMORPHOUS-ALLOYS ; ROOM-TEMPERATURE ; DUCTILITY ; LASER ; COMPOSITES ; BEHAVIOR ; FRACTURE
WOS ID: WOS:000370179100039
ISSN: 1674-1056
Funder: Project supported by the National Natural Science Foundation of China (Grant No. 51404232), the China Postdoctoral Science Foundation (Grant No. 2014M561074), and the National Science and Technology Major Project, China (Grant No. 2011ZX05038003).
Rank: [Liu, Wen-Chao; Liu, Yue-Wu; Niu, Cong-Cong; Han, Guo-Feng; Wan, Yi-Zhao] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
CSCD ID: 5628724
Department: LMFS水环境流体力学(LEM)
Classification: 二类/Q2
First Institution (Yes or Not): True
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/58667
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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Recommended Citation:
Liu WC,Liu YW,Niu CC,et al. Numerical investigation of a coupled moving boundary model of radial flow in low-permeable stress-sensitive reservoir with threshold pressure gradient[J]. CHINESE PHYSICS B,2016,25(2):24701.
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