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首頁(yè)» 往期文章» 2014» Issue 4» 石油化學(xué)與化工

Petroleum Science >2014,??Issue 4:??584-589 DOI: https://doi.org/10.1007/s12182-014-0375-9

Synthesis of temperature-resistant and salt-tolerant surfactant SDB-7 and its performance evaluation for Tahe Oilfield flooding (China) Open?Access

文章信息

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作者：Guo Jixiang,Shi Xiao,Yang Zuguo,Cao Jingjing,Wang Lei and Yin Ying
作者單位：

Enhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China;Beijing Research & Development Center, Sinopec Lubricant Company, LTD, Beijing 100085, China;Engineering Technology Institute, Northwest Oilfield Company, SINOPEC, Urumchi 830011, China;Economy and Information Technology Commission of Bayingol Mongolian Autonomous Prefecture, Autonomous Prefecture, Korla 841000, China;Engineering Technology Institute, Northwest Oilfield Company, SINOPEC, Urumchi 830011, China;Enhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China

投稿時(shí)間：2014-03-23
引用方式：Guo, J., Shi, X., Yang, Z. et al. Pet. Sci. (2014) 11: 584. https://doi.org/10.1007/s12182-014-0375-9

文章摘要

In order to improve the enhanced oil recovery of high-temperature and high-salt oilfields, a novel temperature-resistant and salt-tolerant surfactant (denoted as SDB-7) was synthesized and evaluated for the Tahe Oilfield (Xinjiang, China), which is representative of high-temperature and high-salt oilfields. It has a central reservoir temperature of 140 °C and salinity of 22.6×104 mg/L. The temperature-resistant and salt-tolerant performance, interfacial activity, oil displacement efficiency, aging properties, and adsorption properties of the synthesized surfactant were evaluated for Tahe Oilfield flooding. The results showed that the SDB-7 was temperature-resistant and salt-tolerant capacity of 140 °C and 22.6×104 mg/L, respectively, oil displacement efficiency under static condition of 84%, and adsorption loss of 0.4 mg/g (less than 1 mg/g-oil sand). In the heat aging experiment (under the temperature of 140 °C for 60 days), the oil-water interfacial tension and oil displacement efficiency of SDB-7 were almost unchanged. The oil displacement experiments showed that, under the temperature of 140 °C and the salinity of 22.6×104 mg/L, the surfactant SDB-7 can enhance oil recovery by 14.5% after water flooding,suggesting?that?SDB-7 has a promising application in high temperature and high salinity (HT/HS) reservoir.

關(guān)鍵詞

    Temperature-resistance, salt-tolerance, surfactant, oil displacement experiments, EOR