Characteristics of interfacial tension and oil displacement efficiency with alkaline-surfactant-polymer flooding technology

doi:10.7623/syxb200605019

Editorial office of ACTA PETROLEI SINICA ›› 2006, Vol. 27 ›› Issue (5): 96-98.DOI: 10.7623/syxb200605019

• Oil Field Development • Previous Articles Next Articles

Characteristics of interfacial tension and oil displacement efficiency with alkaline-surfactant-polymer flooding technology

Li Huabin¹, Chen Zhonghua²

1. State Key Laboratory for Oil-Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;
2. Exploration and Development Research Institute, Southwest Oil-gas Field Company, Chengdu 610041, China

Received:2005-11-01 Revised:2005-12-11 Online:2006-09-25 Published:2010-05-21

界面张力特征对三元复合驱油效率影响的实验研究

李华斌¹, 陈中华²

1. 西南石油大学油气藏地质及开发工程国家重点实验室, 四川, 成都, 610500;
2. 西南油气田分公司勘探开发研究院, 四川, 成都, 610041

作者简介:李华斌,男,1964年10月生,2005年获西南石油学院应用化学博士学位,现在成都理工大学地质科学与工程博士后工作站从事提高采收率技术研究.E-mail:lihuab1111@163.com
基金资助:
国家重点基础研究发展规划(973)项目(2005CB221302)"化学驱微生物驱提高采收率技术基础研究"部分成果

Abstract

Abstract: Four systems for dynamic and equilibrium interfacial tensions(IFT) with different IFT values of 1mN/m,0.1mN/m,(0.01)mN/m and 0.001mN/m in core oil-displacement test were investigated.The results demonstrate that the dynamic interfacial tension is the key factor affecting oil recovery with alkaline-surfactant-polymer(ASP) flooding technology.The oil displacement efficiency for the minimum dynamic IFT value of 0.01mN/m is almost equal to that for equilibrium IFT value of 0.001mN/m.This conclusion implies that the alkalinity in ASP solutions could be decreased greatly or reduced to zero.Almost commercial surfactants could be used in ASP flooding technology.

Key words: alkaline-surfactant-polymer flooding technology, surfactant, equilibrium interfacial tension, dynamic interfacial tension, core oil-displacement test, oil displacement efficiency

摘要： 分别采用了油水平衡界面张力和瞬时动态界面张力为1mN/m、0.1mN/m、0.01mN/m和0.001mN/m的4种体系进行了岩心驱油试验.结果表明,在大庆油田三元复合驱中,油水动态界面张力最低值是影响驱油效果的重要因素,而不是平衡界面张力.动态界面张力最低值达到0.01mN/m时,体系的驱油效果与界面张力平衡值达到0.001mN/m时基本相同.因此,可以大幅度降低三元复合体系中碱的用量,甚至可以不用碱.此外,还可以降低对表面活性剂的苛刻要求,扩大表面活性剂的种类和范围.

关键词: 三元复合驱, 表面活性剂, 平衡界面张力, 动态界面张力, 岩心驱油实验, 驱油效率

CLC Number:

TE357.43

Li Huabin, Chen Zhonghua. Characteristics of interfacial tension and oil displacement efficiency with alkaline-surfactant-polymer flooding technology[J]. Editorial office of ACTA PETROLEI SINICA, 2006, 27(5): 96-98.

李华斌, 陈中华. 界面张力特征对三元复合驱油效率影响的实验研究[J]. 石油学报, 2006, 27(5): 96-98.

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Characteristics of interfacial tension and oil displacement efficiency with alkaline-surfactant-polymer flooding technology

界面张力特征对三元复合驱油效率影响的实验研究

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