文献类型：期刊文献

英文题名：The flow of water-in-oil emulsion in heterogeneous parallel model

作者：Li, Jierui Liu, Weidong Cong, Sunan Li, Yalong Zheng, Kai Luo, Xun Luo, Wenbo Su, Xiangdong

通信作者：Su, XD[1];Su, XD[2];Li, YL[3]

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Inst Technol, Guizhou Key Lab Preparat Light Met Mat, Guiyang 550003, Peoples R China;[3]PetroChina Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China;[4]Nanjing Univ Sci & Technol, Nanjing 210094, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Inst Technol, Guizhou Key Lab Preparat Light Met Mat, Guiyang 550003, Peoples R China;corresponding author), Nanjing Univ Sci & Technol, Nanjing 210094, Peoples R China.|贵州理工学院;

年份：2022

卷号：208

外文期刊名：JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING

收录：;EI(收录号：20212910659995);Scopus(收录号：2-s2.0-85110547922);WOS:【SCI-EXPANDED(收录号:WOS:000736800800003)】；

基金：This work was kindly supported by the Chinese National Science and Technology Major Project (No. 2016ZX05010-005) .

语种：英文

外文关键词：Water-in-oil emulsion; Surfactant-polymer flooding; Flow model; Heterogeneous parallel model

摘要：Emulsification has the potential to profoundly change enhanced oil recovery (EOR) and to improve the mechanism of recovery, and the emulsification performance of the chemical is an important basis for the selection of the injection agent for the surfactant-polymer flooding. The objective of this research is the study of the transportation of the oil-rich zone of surfactant-polymer flooding, its ability to adjust liquid production profile in heterogeneous parallel conglomerate cores at different permeability. A stable water-in-oil emulsion was screened by ultrasonic emulsification experiment with the condition of oil-water ratio at 7:3, the ultrasonic power at 900 W. When the emulsion flowed through the conglomerate core, the blockage of pores by emulsion droplets included the blockage by single droplet and multiple droplets accumulation. A one-dimensional flow characterization model of the water-in-oil emulsion flow was established based on the generalized Darcy's law and corroborated with the single-core emulsion flow experiment. The water-in-oil emulsion had a conformance control when flowed in heterogeneous parallel conglomerate cores. When the pore size of the hyperpermeable layer of the heterogeneous layer is much larger than the size of the emulsion, the fluidity of the emulsion in the hyperpermeable layer would mainly be adjusted with high viscosity, so its adjustment ability is poor. When considering the influence of emulsification on the enhanced oil recovery, it is necessary to fully consider the compatibility of emulsion properties and reservoirs.