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Petroleum Science >2011,??Issue 3:??335-344 DOI: https://doi.org/10.1007/s12182-011-0150-0

Low gas-liquid ratio foam flooding for conventional heavy oil Open?Access

文章信息

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作者：Wang Jing,Ge Jijiang,Zhang Guicai,Ding Baodong,Zhang Li and Jin Luchao
作者單位：

School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266555, China;School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266555, China;School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266555, China;School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266555, China;School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266555, China;School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266555, China

投稿時(shí)間：2010-10-23
引用方式：Wang, J., Ge, J., Zhang, G. et al. Pet. Sci. (2011) 8: 335. https://doi.org/10.1007/s12182-011-0150-0

文章摘要

The recovery of heavy oil by water flooding is 10% lower than that of conventional crude oil, so enhanced oil recovery (EOR) is of great significance for heavy oil. In this paper, foam flooding with a gas-liquid ratio (GLR) of 0.2:1 for the Zhuangxi heavy oil (325 mPa?s at 55 °C) was performed on cores, sand packs and plate model. In sand pack tests, polymer enhanced foam flooding increased oil recovery by 39.8%, which was 11.4% higher than that for alkali/surfactant/polymer (ASP) flooding under the same conditions. Polymer enhanced foam flooding in plate models shows that the low GLR foam flooding increased oil recovery by about 30%, even when the extended water flooding was finished at 90% water cut. Moreover, it was discovered by microscopy that foam was more stable in heavy oil than in light oil. These results confirm that low GLR foam flooding is a promising technology for displacing conventional
heavy oil.

關(guān)鍵詞

    Low gas-liquid ratio, foam flooding, enhanced oil recovery, conventional heavy oil