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

作者：Qin Bing,Qiao Fulin,Li Caifu

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.

发文机构：SINOPEC Research Institute of Petroleum Processing

关键词：MICRO-EMULSIONheavyoildisplacementagentfieldapplication

分类号： F42[经济管理—产业经济]