[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.1080/12269328.2018.1450790

Characterization of gas-water flow in tight sandstone based on authentic sandstone micro-model

Liu, Yuqiao (School of Geosciences, Yangtze University)
Lyu, Qiqi (Laboratory of Exploration Technologies for Oil and Gas Resources, Yangtze University)
Luo, Shunshe (Laboratory of Exploration Technologies for Oil and Gas Resources, Yangtze University)

Publication Information

Geosystem Engineering / v.21, no.6, 2018 , pp. 318-325 More about this Journal

Abstract

Eight tight sandstone reservoir samples from $He_8$ and $Shan_1$ Formations of the Sulige Gas field were selected to perform gas-water micro-displacement experiment based on authentic sandstone micro-model. The gas pressure-relief experiment was proposed for the first time to simulate the pressure change and gas-water percolation characteristics in the process of gas exploitation. The experiment results show that: (1) In the process of gas accumulation, the gas preferentially flows into the well-connected pores and throats with large radius, but rarely flows into the area without pores and throats. (2) Under sufficient gas drive, the water in pores and throats usually exists in the forms of 'thin water film', 'thick water film', and 'water column', but under insufficient gas drive, gas fails to flow into new pathways in time, so that the reservoirs with large pores and throats are high in water cut. (3) Under the same water saturation, the reservoirs with better petrophysical properties has higher gas recovery factor within unit time. Under the same petrophysical conditions, the reservoirs with lower water saturation show higher gas recovery factor within unit time. The higher the permeability, the stronger the liquid carrying capacity of reservoirs.

Keywords

Sulige Gas field; tight sandstone; micro-model; gas-driving-water; pressure relief;

Citations & Related Records

Reference

1	Chang, C., Zhou, Q. L., Xia, L., Li, X. Y., & Yu, Q. C. (2013). Dynamic displacement and non-equilibrium dissolution of supercritical $CO_2$ in low-permeability sandstone: An experimental study. International Journal of Greenhouse Gas Control, 14(5), 1-14. (in Chinese with English abstract). DOI
2	Chen, Z. H., Xie, Y. T., & Deng, Y. (2013). Experiment of microscopic displacement of gas and water in loose sandstone gas reservoir of Sebei. Journal of Southwest Petroleum University (Science & Technology Edition), 35(4), 139-144. (in Chinese with English abstract).
3	Gao, H. (2009). Research on micro-pore structure and micro-flow mechanism of ultra low permeability sandstone reservoir. Xi'an: Northwest University. (in Chinese with English abstract).
4	Guillen, V. R., Carvalho, M. S., & Alvarado, V. (2012). Pore scale and macroscopic displacement mechanisms in emulsion flooding. Transport in Porous Media, 94(1), 197-206. DOI
5	Hosein, S., Marcelle-De Silva, J., & Dawe, R. A. (2013). The two-rate limit test as a tool for determining gas-in-place in edge water drive gas reservoirs. Petroleum Science and Technology, 31(15), 1522-1531. DOI
6	Kuba, N., & Fujiyoshi, Y. (2006). Development of a cloud microphysical model and parameterizations to describe the effect of CCN on warm cloud. Atmospheric Chemistry and Physics, 6(10), 1413-1453.
7	Lee, S. T., Lo, H., & Dharmawardhana, B. T. (1998, October 2-5). Analysis of mass transfer mechanisms occurring in rich gas displacement process. 63rd Annual Technical Conference and Exhibition of the Society of Petroleum Engineers, Houston, 47-62.
8	Lenormand, R., Touboul, E., & Zarcone, C. (1988). Numerical models and experiments on immiscible displacements in porous media. Journal of Fluid Mechanics, 189(1), 165-187 DOI
9	Li, D. W., Zhang, L. H., Zhou, K. M., & Guo, L. P. (2008). Gas-water two-phase flow mechanism in visual microscopic pore model. Journal of China University of Petroleum: Natural Science Edition, 32(3), 80-83. (in Chinese with English abstract).
10	Liu, J. Q., Zhou, K., Ding, L., Wang, B. Y., & Li, Y. Y. (2012). Displacement experiments of gas and water sandstone micro-models of He 8 reservoir in the east of Oreos Basin and the major factors affecting the gas displacement efficiency. Xinjiang Oil & Gas, 8(2), 46-49. (in Chinese with English abstract).
11	Liu, L. Y., Wang, Z. L., & Gao, C. (2008). Applying authentic sandstone micromodel to the study of microanisotoropy of Chang 8 sandstone in Jingchuan area of Ordos Basin. Earth Science Frontiers, 15(1), 80-84. (in Chinese with English abstract). DOI
12	Tang, X. Y. (2014). A simulation experiment study on gas-water movement mechanism and distribution regular in the process of gas accumulation based on the microscopic model. Science Technology and Engineering, 14, 13-17. (in Chinese with English abstract).
13	Meysam, N., & Ehsan, K. (2016). Nonlinear risk optimization approach to water drive gas reservoir production optimization using DOE and artificial intelligence. Journal of Natural Gas Science and Engineering, 31, 575-584. DOI
14	Nuryaningsih, L., Jiang, H., & Adidharma, H. (2010, November 10-12). Experimental study on optimum half-cycle slug size of water alternating gas under tertiary miscible carbon dioxide flooding. Society of Petroleum Engineers International Conference on $CO_2$ Capture, Storage, and Utilization, New Orleans, 1-9.
15	Seyyedi, M., & Sohrabi, M. (2016). Enhancing water imbibition rate and oil recovery by carbonated water in carbonate and sandstone rocks. Energy & Fuels, 30(1), 285-293. DOI
16	Van Elk, E. P., Borman, P. C., Kuipers, J. A. M., & Versteeg, G. F. (2000). Modelling of gas-liquid reactors - Implementation of the penetration model in dynamic modelling of gas-liquid processes with the presence of a liquid bulk. Chemical Engineering Journal, 76(3), 223-237. DOI
17	Van Elk, E. P., Knaap, M. C., & Versteeg, G. F. (2007). Application of the penetration theory for gas-liquid mass transfer without liquid bulk. Chemical Engineering Research and Design, 85(4), 516-524. DOI
18	Wei, H. (2011). Micro-structure of the low permeability & tight sandstone gas reservoir and its influence on gas production. Xi'an: Northwest University. (in Chinese with English abstract).
19	Zaki, B. (1990). Enhanced recovery from water-drive gas reservoirs. Rudarsko-Geolosko-Naftni Zbornik, 2(1), 151-159.
20	Xue, C. (2014). A research on microscopic percolation characteristics of flow units of chang 6 reservoir in Huaqing area, the Ordos Basin-a case of Chang 63 reservoir in the Yuan 284 oilfield. Xi'an: Northwest University. (in Chinese with English abstract).
21	Zhang, Y. P., & Zuo, J. B. (2015). Micro-flow characteristics andinfluencing factors of low permeability reservoir. A Casestudy of Chang 6 Reservoir in Jiyuan area in Ordos Basin. Geological Science and Technology Information, 2(6), 346-348. (in Chinese with English abstract).
22	Zhang, Z., Zhu, Y. S., Chen, Z. B., Niu, X. B., Xin, H. G., Zhu, J., & Quan, H. H. (2012). Micro-flow characteristics and influencing factors of oil displacement efficiency of Chang 6 reservoir in Heshui area. Earth Science Frontiers, 19(2), 176-182. (in Chinese with English abstract).