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Indexed by:期刊论文

Date of Publication:2003-07-01

Journal:Xiandai Huagong/Modern Chemical Industry

Included Journals:Scopus、EI、PKU、ISTIC

Volume:23

Issue:SUPPL.

Page Number:19-22

ISSN No.:02534320

Key Words:Crude petroleum; Sulfonation; Surface active agents, Combined chemical flooding; Low interfacial tension; Oil recovery; Petroleum sulfonates; Precipitation and adsorption losses, Enhanced recovery

Abstract:The present situation of pilot tests for enhanced oil recovery by employing petroleum sulfonates at home and abroad is summarized. The raw materials and process in synthesizing petroleum sulfonates and the fine composition of petroleum sulfonates are introduced. Low interfacial tension properties of petroleum sulfonates and mixed surfactants systems are described. Precipitation losses in the flooding process, the factors that affected the losses and the adsorption losses on the reservoir sand surface are investigated. It is pointed out that the modified petroleum sulfonates and synthetic petroleum sulfonates (SPS) will be the development tendency.