Predicted Dependence of Gas—Liquid Diffusion Coefficient on Capillary Pressure in Porous Media
- 作者: Guo P.1, Tu H.1, Ye A.2, Wang Z.1
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隶属关系:
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
- CNPC
- 期: 卷 53, 编号 1 (2017)
- 页面: 54-67
- 栏目: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/234853
- DOI: https://doi.org/10.1007/s10553-017-0781-y
- ID: 234853
如何引用文章
详细
Theoretical and experimental studies of the change of diffusion coefficient in porous media are reported. Mathematical equations were derived for calculating the diffusion coefficient in oil and gas phases. Experiments were conducted by measuring the pressure decline in both a PVT-cell and a sample of actual core. The medium porosity was found to have a significant effect on the system pressure decline. The diffusion coefficient in the PVT-cell was two orders of magnitude greater than that in the core. The diffusion coefficient was studied as a function of rock permeability and porosity. It was found that the porosity was the main factor affecting the diffusion coefficient whereas the permeability could be neglected.
作者简介
Ping Guo
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: t.hanmin@yahoo.com
中国, Chengdu
Hanmin Tu
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
编辑信件的主要联系方式.
Email: t.hanmin@yahoo.com
中国, Chengdu
Anping Ye
CNPC
Email: t.hanmin@yahoo.com
中国, Beijing
Zhouhua Wang
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: t.hanmin@yahoo.com
中国, Chengdu