Open Access
ARTICLE
Effect of Gas-wetness on Gas-water Two-phase Seepage in Visual Microscopic Pore Models
G. C. Jiang1,2, M. Zhang1,2, X. X. Xing3, S. J. Luo1,2, J. T. Pang1,2
1 MOE Key Laboratory of Petroleum Engineering, China University of Petroleum; Beijing, China.
2 State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum;
Beijing, China.
3 Marine Oil Extraction Plant of Shengli Oilfield, Shandong, Dongying, China.
Structural Longevity 2013, 10(1), 19-26. https://doi.org/10.3970/sl.2013.010.019
Abstract
Theoretical analyses and experimental results show that gas wettability
plays an important role on gas-well production. In the study, the gas-wet ability parameter of gas vs. liquid ζ
G-L, calculated from the proposed formula in the sessile
drop method, used to measure gas wettability of microscopic pore models treated
by fluorocarbon polymer Zonyl8740. Following that, the effect of gas-wetness on
gas-water two-phase seepage in models was studied by stereomicroscope with a
camera. Research results show that, under the condition of the pore structure is
constant and displacement velocity is very slow, capillary force is the main motivation for two-phase seepage, and gas wettability has a crucial influence on gas/water
interface, displacement characteristics, and distribution of gas and water. It is valuable for development of water flooding gas reservoirs.
Keywords
Cite This Article
Jiang, G. C., Zhang, M., Xing, X. X., Luo, S. J., Pang, J. T. (2013). Effect of Gas-wetness on Gas-water Two-phase Seepage in Visual Microscopic Pore Models.
Structural Longevity, 10(1), 19–26. https://doi.org/10.3970/sl.2013.010.019