An Analytical Model for Pressure of Volume Fractured Tight Oil Reservoir with Horizontal Well

被引:0
|
作者
Feng, Qihong [1 ]
Dou, Kaiwen [1 ]
Zhang, Xianmin [1 ]
Xing, Xiangdong [1 ]
Xia, Tian [1 ]
机构
[1] China Univ Petr East China, Qingdao, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.4982379
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The property of tight oil reservoir is worse than common reservoir that we usually seen before, the porosity and permeability is low, the diffusion is very complex. Therefore, the ordinary depletion method is useless here. The volume fracture breaks through the conventional EOR mechanism, which set the target by amplifying the contact area of fracture and reservoir so as to improving the production of every single well. In order to forecast the production effectively, we use the traditional dual-porosity model, build an analytical model for production of volume fractured tight oil reservoir with horizontal well, and get the analytical solution in Laplace domain. Then we construct the log-log plot of dimensionless pressure and time by stiffest conversion. After that, we discuss the influential factors of pressure. Several factors like cross flow, skin factors and threshold pressure gradient was analyzed in the article. This model provides a useful method for tight oil production forecast and it has certain guiding significance for the production capacity prediction and dynamic analysis.
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收藏
页数:10
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