Comparative studies on enhanced oil recovery by alkali-surfactant and polymer flooding

被引：88

作者：

Abhijit Samanta

Achinta Bera

Keka Ojha

Ajay Mandal

机构：

[1] Enhanced Oil Recovery Laboratory, Department of Petroleum Engineering, Indian School of Mines, Dhanbad

来源：

Journal of Petroleum Exploration and Production Technology | 2012年 / 2卷 / 2期

关键词：

ASP flooding; Oil recovery; Surface tension; Viscosity;

D O I：

10.1007/s13202-012-0021-2

中图分类号：

学科分类号：

摘要：

Chemical flooding methods are now getting importance in enhanced oil recovery to recover the trapped oil after conventional recovery. In the present study, a comprehensive study has been carried out on alkali, surfactant and polymer flooding. The chemicals with different compositions and combinations were used to recover the oil after conventional water flooding. It has been observed that increase in concentration of alkali, surfactant and polymer increases the additional recovery, but beyond a certain limit, the increase in recovery is only marginal. A series of flooding experiments using the combination of the above methods have been performed with additional recoveries more than 25 %. An analysis has been made on the relative cost of the different chemical slugs injected and the corresponding additional oil recovery. Based on the analysis, an optimum composition of the alkali-surfactant-polymer system has been recommended. © 2012 The Author(s).

引用

页码：67 / 74

页数：7

共 43 条

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