Experimental study on gas channeling problem of N2 foam flooding

被引：2

作者：

Li Z. ^{[1
]}

Zhang X. ^{[1
]}

Li S. ^{[1
]}

Wang H. ^{[2
]}

Li B. ^{[1
]}

Lu T. ^{[1
]}

机构：

[1] School of Petroleum Engineering in China University of Petroleum, Qingdao

[2] Bohai Petroleum Research Institute, Tianjin Branch of CNOOC Limited, Tianjin

来源：

Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2016年 / 40卷 / 05期

关键词：

Affecting factor; Critical gas channeling point; Gas channeling; Index number of gas production rate; N[!sub]2[!/sub] foam flooding;

D O I：

10.3969/j.issn.1673-5005.2016.05.011

中图分类号：

学科分类号：

摘要：

The gas channeling problem happens often during the foam flooding for enhancing oil recovery. In order to define the gas channeling opportunity and degree, the index number of gas production rate Ig was proposed. The influences of surfactant concentration, injection manner, injection rate and oil saturation on the N2 foam flooding were investigated through physical simulation experiments. The results show that the high foam surfactant concentration can cause a high strength of liquid film, in which the function of liquid film flowing can reduce the chance of gas channeling. Compared with the slug injection and gas/liquid injection, the foam from generator has a better quality and has less chance of gas channeling. It is also found that low velocity of injection causes the gas channeling easily. However, when the velocity is above the certain value, the blockage ability of foam becomes stable. The Ig value of 0.5 is defined as the critical gas channeling point, above which the gas channeling will happen. © 2016, Periodical Office of China University of Petroleum. All right reserved.

引用

页码：96 / 103

页数：7

共 20 条

[1] Li Z., Sun M., Lin R., Et al., Laboratory study on foam plugging and selective divided-flow, Acta Petrolei Sinica, 28, 4, pp. 115-118, (2007)
[2] Li Z., Li R., Shi J., Application and outlook of oil and gasfield development (I): foaming agent and application of foam fluid in wellbore, Oilfield Chemistry, 29, 4, pp. 507-512, (2012)
[3] Li Z., Li R., Liu W., Application and outlook of foam in oil and gasfield development (II): foam fluid in immediate vicinity of wellbore and formation, Oilfield Chemistry, 30, 1, pp. 155-160, (2013)
[4] Guo L., Experiment on multiple flow regime characteristics of foam system, Journal of China University of Petroleum (Edition of Natural Science), 36, 3, pp. 126-129, (2012)
[5] Wang D., Cheng J., Wu J., Et al., Summary of ASP pilots in Daqing Oilfield, (1999)
[6] Li Q., Du J., Guo P., Performace test and evaluation of the new type foam system against high salinity and high temperature, Journal of Chongqing University of Science and Technology (Natural Science Edition), 13, 2, pp. 9-11, (2011)
[7] Yin G., Reid B.G., Yi S., Oil recovery and surfactant adsorption during CO2-foam flooding, (2009)
[8] Zhang X., Zhao J., Zhang M., Et al., Study on blocking ability and influential factors of N2 foam in porous media, Chemical Engineering of Oil & Gas, 38, 3, pp. 227-230, (2009)
[9] Lin Y., Liu Y., Hu X., Gas channeling and migration of CO2 in the non-homogeneous porous media, Journal of Petrochemical Universities, 23, 2, pp. 43-46, (2010)
[10] Kuang X., Cao X., Zhong D., Experimental study on the evaluation of anti-channeling performance of air foam, Reservoir Evaluation and Development, 2, 3, pp. 34-37, (2012)

← 1 2 →