日用化学工业2017，Vol.47Issue(10)：554-557,4.DOI:10.13218/j.cnki.csdc.2017.10.004
表面活性剂对特低渗油藏的适用性及应用
Adaptability and application of surfactant for exploit of reservoir of crude oil with extra low permeability
摘要
Abstract
In order to evaluate the adaptability of surfactant WLW for exploit of reservoir of crude oil with extra low permeability in Changqing Jingan oilfield,the imbibition characteristics,emulsion performance and interfacial tension between crude oil and the surfactant WLW solution as well as the oil displacement test using physical simulated rock core were studied in experiment and in field application. Results show that the surfactant WLW stimulates the imbibition efficiency of the injected water;when the injection mass fraction of surfactant system is 0. 2%,the oil displacement efficiency will increase 5% in this low permeability reservoir, and in the range of the low permeability,the lower the permeability is,the better the surfactant improves the oil displacement efficiency. From 2011 to 2013,field test of oil well group A1 and A2 in Changqing Jingan oilfield was conducted and 4781 t of crude oil increased. Obviously,the surfactant can enhance the oil recovery of extra low permeability reservoirs.关键词
表面活性剂/特低渗油藏/驱油效率/渗吸效率/现场试验Key words
surfactant/extra low permeability reservoir/oil displacement efficiency/imbibition efficiency/field test分类
化学化工引用本文复制引用
谭俊领,沈一丁,杨棠英..表面活性剂对特低渗油藏的适用性及应用[J].日用化学工业,2017,47(10):554-557,4.基金项目
长庆油田油气当量上产5000万吨关键技术资助项目(2011E-13) （2011E-13）
