蒸汽驱调驱体系合成及性能评价  

SYTHESIS AND PERFORMANCE EVALUATION OF THE PROFILECONTROLLING AND DRIVING SYSTEM FOR STEAM FLOODING

作　　者：董龙[1,2] 徐克明[2] 赵法军[1] 刘海燕[2] 孔祥伟[3] 刘永建[1] 

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]大庆师范学院化学化工学院,黑龙江大庆163712 [3]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《大庆石油地质与开发》2015年第1期146-150,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家科技重大专项"提高稠油蒸汽驱效率技术"(2011ZX05012-003);国家自然科学基金项目"稠油井下改质降黏机理及开采新技术基础研究"(21046002);黑龙江省青年科学基金项目"驱油用木质素磺基甜菜碱型表面活性剂的合成及性能研究"(QC2012C128)

摘　　要：在稠油开采注蒸汽过程中,耐高温的表面活性剂能够改善油层岩石的湿润性及界面张力,从而提高注蒸汽热采效果.用酸析法提取木质素,再通过磺化,侧链引入壬基酚的方法,合成了适用于蒸汽驱开采中改性的木质素磺酸盐表面活性剂（CRF）.所合成的调驱剂体系中木质素磺酸盐表面活性剂（CRF）的红外光谱图显示磺化产物特征.主要考察了调驱剂体系质量分数、气液比、温度、压力、渗透率以及含油饱和度对调驱剂阻力因子的影响.结果表明,调驱剂体系配方为质量分数0.3％的驱油剂＋质量分数0.5％发泡剂,发泡剂与驱油剂1∶1（体积比）混合,气液比为1∶2～2∶1,该配方体系可以耐270℃以上的高温.In the course of the steam flooding of heavy oil, the temperature-resistant surfactant can improve the wettability and interfacial tension of the oil reservoir rocks, thus the thermal effects of the steam flooding can be greatly enhanced. The lignose is extracted by means of acid-out method, and then the modified lignosulfonate sur- factant （CRF） suitable for the steamflooding is synthesized through sulphonating and introducing nonylphenol meth- od for the side chains. The infra-red spectrogram of the CRF in the synthesized profile-control and flooding system manifests the characteristics of sulphonated products. The effects of the mass fraction, steam-liquid ratio, tempera- ture, pressure, permeability and oil saturation on the resistant factor of the profile-controlling agent are mainly in-vestigated. The results show that the formula of the system is 0.3 % （ mass fraction } oil-displacing agent mixed with 0.5% （ mass fraction） foaming agent with 1 ： 1 volume mixed ratio and 1 ： 2-2 ： 1 steam-liquid ratio for the two a- gents. The resisted temperature for the system formula can reach 270 ℃ or more.

关 键 词：红外光谱 表面活性剂 蒸汽驱 提高采收率 调驱 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]