Abstract

Alternately injecting the slug of the gel and polymer/surfactant compound system is a new way to further enhance oil recovery after polymer flooding. The displacement system needs to produce an ultra low interfacial tension to oil and to enlarge swept volume significantly. Based on experimental analysis, the influence factors of Cr3+ gel system viscosity and the compatibility of gel with two types of surfactant compared with composite ion gel system has been studied. The experimental result shows that it has well stability, and the compatibility of gel with RMA-1 type surfactant is very well. It can produce an ultra low interfacial tension to oil so that enhanced oil recovery has been reached more than 10 percent by using the gel system to displace residual oil after polymer flooding in artificial large flat- panel model.

Details

Title
The compatibility evaluation of Cr3+ Gel system and polymer/surfactant system with alternating injection mode
Author
Zhang, J H 1 ; Li, H K 1 ; Wang, Y N 1 ; Zhi, J Q 1 ; Liu, Y 2 

 Key Laboratory for Enhancing Oil/Gas Recovery of Ministry of Education in Northeast Petroleum University, Daqing, Heilongjiang, 163318, China 
 Drilling & Production Technology Research Institute Petrochina Qinghai Oilfield Company, Dunhuang, Gansu, 736202, China 
Publication year
2016
Publication date
Aug 2016
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2548421050
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.