Experimental Investigation of Enhanced Oil Recovery by Thermal Foam Flooding

Abstract:

Article Preview

Foam has been widely used in petroleum industry. It could enhance oil recovery by the means of improving mobility ratio, selective plugging and lowering the interfacial tension(IFT) of oil and water. The influences of concentration, temperature, gas-liquid ratio, permeability and oil saturation on the plugging property of 3 foaming agents were studied experimentally. The foaming agent concentration and the ratio of steam to nitrogen for thermal foam flooding were optimized. Displacement experiments were performed to investigate the EOR effect of 2# foaming agent. It was shown that the resistance factor increased with the increase of the concentration, gas-liquid ratio and permeability and the increase velocity slowed down in the later period of experiments. The optimal concentration was 0.5wt% and the optimum gas-liquid ratio was 1:1. The resistance factor reduced with increasing oil saturation. The plugging ability lost when the oil saturation was greater than 0.2. The resistance factors of 1# and 2# foaming agents decreased with increasing temperature but 3# increased. The best concentration was 0.6wt% and the ratio of steam to nitrogen was 3:2 for steam and nitrogen foam flooding. In the process of thermal foam flooding, oil recovery increased by 20.82%, and the sweep efficiency and displacement efficiency was 13% and 24.6% , separately.

Info:

Periodical:

Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao

Pages:

814-819

DOI:

10.4028/www.scientific.net/AMR.236-238.814

Citation:

H. Q. Liu et al., "Experimental Investigation of Enhanced Oil Recovery by Thermal Foam Flooding", Advanced Materials Research, Vols. 236-238, pp. 814-819, 2011

Online since:

May 2011

Export:

Price:

$35.00

[1] Huiqing Liu, in: Principles and methods of thermal oil recovery technology, edited by Petroleum University Press, Shandong Dongying(2000), in press. (In Chinese).

[2] Huiqing Liu: submitted to Petroleum Science(2006).

[3] Bin Liu: submitted to Petroleum Exploration and Development(1995). (In Chinese).

[4] Yingjie Zhou and Rui Chen: submitted to Petroleum Exploration and Development(1991). (In Chinese).

[5] Zenglin Wang and Qiwei Wang: submitted to Journal of China University of Petroleum: Edition of Natural Science(2004). (In Chinese).

[6] Zhaomin Li: submitted to Acta Petrolei Sinica (2007). (In Chinese).

[7] Yuan You: submitted to Journal of China University of Petroleum: Edition of Natural Science (2010). (In Chinese).

[8] Fulin Zhao, in: Principles of chemistry edited by China Petroleum University Press, Shandong Dongying(2006), in press. (In Chinese).

[9] A.R. Kovscek G.Q. Tang and C.J. Radke: submitted to Colloids and Surfaces A: Physicochem. Eng, (2007).

In order to see related information, you need to Login.