Preparation and Field Application of a Novel Micro-emulsion as Heavy Oil Displacement Agent  

作　　者：Qin Bing Qiao Fulin Li Caifu 

机构地区：[1]SINOPEC Research Institute of Petroleum Processing,Beijing 100083

出　　处：《China Petroleum Processing & Petrochemical Technology》2020年第3期19-27,共9页中国炼油与石油化工（英文版）

基　　金：This work was supported by the 13th Fiveyear Plan National Key Project of China(No.2016ZX05011-003-004 and No.2017ZX05049-003-008).

摘　　要：A novel micro-emulsion was prepared by mixing an oil-soluble viscosity reducer,which was screened to aim at improving the heavy oil properties of Shengli oilfield with water-soluble surfactant and co-surfactant.The static viscosity reduction and oil washing performance of the micro-emulsion were investigated,and the field application of the microemulsion used as heavy oil displacement agent was also reported.Results showed that the micro-emulsion exhibited excellent viscosity reduction performance for the studied heavy oil samples.When heavy oil was mixed with 0.5%of the micro-emulsion,a stable oil-in-water heavy oil emulsion could be formed.After the content of the micro-emulsion was increased to 3.0%,the oil removing rate reached up to 80%.Field application of the micro-emulsion to the Pai-601-Ping-115 well and the Pai-601-Ping-123 well was shown to be effective by increasing the periodic oil production up to 203 tons.

关 键 词：MICRO-EMULSION heavy oil displacement agent field application 

分 类 号：TE39[石油与天然气工程—油气田开发工程]