Reservoir Evaluation and Development ›› 2020, Vol. 10 ›› Issue (6): 8-16.doi: 10.13809/j.cnki.cn32-1825/te.2020.06.002

• Specialist Forum • Previous Articles     Next Articles

Research advance and technology outlook of polymer flooding

CAO Xulong(),JI Yanfeng,ZHU Yangwen,ZHAO Fangjian   

  1. Sinopec Shengli Oilfield, Dongying, Shandong 257000, China
  • Received:2020-10-29 Online:2020-12-26 Published:2021-01-07

Abstract:

With the increasing oil demand in China, it is very important to further tap the potential of oil and gas fields. Chemical flooding technology is one of the important technologies of EOR, and polymer flooding, as the most important method of EOR, has been widely used in the field and achieved good oil displacement effects. Therefore, by summarizing the basic principles of polymer flooding, the development status of various kinds of polymer for oil displacement and the field application effect of polymer flooding, the development direction of polymer flooding in harsh reservoir conditions, such as high temperature and high salt, has been prospected. Through the review, although functional polymers, such as temperature resistant and salt resistant copolymers, instant polymers and amphiphilic polymers, have been successfully developed, the types of polymers used in the field are still limited. How to apply the research and development achievements of new polymers to on-site EOR is the key development direction. With the development of different polymer types, further research on polymer flooding mechanism is needed.

Key words: polymer, oil displacement principle, research advance, field tests, novel polymer

CLC Number: 

  • TE357