Preparation and Properties of Foaming Agent for Air Foam Flooding

Authors

  • Guo Donghong, Cui Xiaodong and Yang Xiaopeng

DOI:

https://doi.org/10.15377/2409-787X.2019.06.3

Keywords:

Foaming agent, air foam flooding, foaming property, foam stability, resistance factor, oil displacement efficiency.

Abstract

 In order to meet the requirements of air foam flooding in Dagang Gangdong Oilfield, two kinds of foaming agents, GFPA-1 and GFPA-2, were prepared by sulfonation, neutralization and high-temperature hydrolysis of α-olefins with different carbon chain lengths in the laboratory. The test results of foaming agents for its properties showed that when the concentration of foaming agent was over 0.5%, the initial foaming volumes of the two foaming agent systems were more than 500mL, and the foam half-life of GFPA-2 was about 3.5 hours, obviously longer than that of GFPA-1. Therefore, GFPA-2 was selected as the foaming agent for air foam flooding. The experimental results of static adsorption, plugging and core displacement performance of GFPA-2 foaming agent showed that the initial foaming volume of GFPA-2 foaming agent could still maintain 500mL after 48 hours of adsorption at a concentration of 0.5%, and when the ratio of gas to liquid was 1: 1, the resistance factor was more than 50. When a 0.4% foaming agent was injected with 0.35 PV slug, the displacement efficiency of air foaming flooding was 17.4% higher than that of water flooding.

References

Youwei J, Yitang Z, Shang Qi L, et al. Displacement mechanisms of air injection in low permeability reservoirs. Petroleum Exploration and Development 2010; 37(4): 471- 476. https://doi.org/10.1016/S1876-3804(10)60048-1

Yuan X, Chengjun W, Shaojing J, et al. Preliminary analysis on explosion limits of EOR by air-foam flooding. Unconventonal Oil & Gas 2015; 2(2): 44-47.

Jun H. Field application of air flooding in light oil reservoirs. Petrochemical Industry Application 2013; 32(4): 26-29.

Shenglai Y, Hao C, Jilei F, et al. A brief discussion on some scientific issues to improve oil displacement during gas injection, Tarim oilfield. Petroleum Geology and Recovery Efficiency 2014; 21(1): 40-44.

Huaijun Y, Yajun D, Lin S, et al. Research on temperature resist air foam system for flooding. Journal of Southwest Petroleum University: Science & Technology Edition 2012; 34(5): 93-98.

Guo DH, Xin HC, Sun JF, Cui XD, Zheng XB. Chinese Patent 2012101528805.

Lei Z, Youdan D. Analysis of surfactants and auxiliaries. Hangzhou: Zhejiang Science and Technology Press 1991; 94-115.

Chengming Z. Oil displaced effects by the alternating injection of N2 foaming system with the high-plugging/high oil-washing in GAOTAIZI reservoirs. Petroleum Geology and Oilfield Development in Daqing 2018; 37(5): 109-112.

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Published

2020-04-03

How to Cite

1.
Guo Donghong, Cui Xiaodong and Yang Xiaopeng. Preparation and Properties of Foaming Agent for Air Foam Flooding. Int. J. Petrol. Technol. [Internet]. 2020Apr.3 [cited 2021Jun.17];6(1):30-4. Available from: https://www.avantipublishers.com/jms/index.php/ijpt/article/view/824

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Articles