会议专题

The Experiments Study of Tight Gas Sandstone Permeability by Effective Stress and Temperature Coupling

Reservoir physical properties of tight sandstone are extremely sensitive to stress. The stress sensitivity coefficient evaluation criteria have been selected to analysis the degree of the permeability sensitivity. Sandstone rock samples have been used to evaluate the stress and temperature sensitivity, the results shows that: With the increase of effective stress, permeability of reservoir rocks decrease continuously, it shall be seen from the table that, the stress sensitivity coefficient range of the rock sample is from 0.32 to 0.62, it generally belongs to medium permeability stress sensitivity, and Rising temperature is equivalent to adding stress, under the joint action of high effective stress and rising temperature, seepage space in reservoirs tends to become smaller.

Tight sandstone experiments study stress sensitivity temperature sensitivity coupling

ZHANG Hao YI Xiangyi

College of Energy Resources, Chengdu University of Technology, P.R.China, 610059 State Key Laboratory of reservoir Geology and Development Engineering, P.R.China, 610059

国际会议

2010 International Symposium on Multi-field Coupling Theory of Rock and Solid Midia and Its Applications(2010年岩土多场耦合理论及应用国际学术论坛)

成都

英文

275-279

2010-10-10(万方平台首次上网日期,不代表论文的发表时间)