Paper Title:
Experimental Investigation of Enhanced Oil Recovery by Thermal Foam Flooding

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.

Advanced Materials Research (Volumes 236-238)
Edited by
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
H. Q. Liu, J. Wang, P. C. Hou, B. K. Wang, "Experimental Investigation of Enhanced Oil Recovery by Thermal Foam Flooding", Advanced Materials Research, Vols. 236-238, pp. 814-819, 2011
Online since
May 2011
Authors: Hong Xing Xu, Chun Sheng Pu, Dao Han Shi
Chapter 2: Nuclear Energy Engineering
Abstract:Longdong Jurassic reservoir is a typical severe heterogeneous reservoir. Water flooding in this area is ineffective owing to water...
Authors: Zhao Min Li, Chao Zhang, Song Yan Li, Dong Zhang, Shu Hua Wang
Chapter 7: Mining Environmental Engineering
Abstract:CO2 injection has been an important enhanced oil recovery method adopted at the later stage of oilfield development, and a series...
Authors: Hong Xing Xu, Chun Sheng Pu, Hong Bin Yang, Wen Hua Man, Tao Yang
Chapter 5: Oil and Gas Well Development Projects
Abstract:Aiming at the heterogeneity characteristics of fractured reservoir, a new type of nitrogen foam flooding agents is proposed. The gas/liquid...
Authors: Jin Yang Xie, Lin Sun, Wan Fen Pu, Fa Yang Jin, Song He
Chapter 21: Geology of Oil and Gas, Well Development Projects
Abstract:Air foam flooding is an important means in tertiary oil recovery. As of July 2013, in the case of low recovery degree, Da Gang oilfield has...