CO_2泡沫封堵性能室内研究  

Desk research of CO_2 foam plugging property

作　　者：马涛[1,2] 吕成远[1,2] 王友启[1,2] 谭中良[1,2] 王锐[1,2] 潘伟义[1,2] 孙一丹[3] 

机构地区：[1]中国石化石油勘探开发研究院,北京100083 [2]中国石化海相油气藏开发重点实验室,北京100083 [3]中国石油大学(北京)石油工程学院,北京102249

出　　处：《应用化工》2016年第2期220-222,共3页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(51504283);中国石油化工股份有限公司科技攻关项目(P11006)

摘　　要：以阻力系数、封堵率为评价指标,通过物理模拟实验,研究了CO_2泡沫在高温高盐条件下的封堵性能,结果表明,实验条件下,气液同注封堵效果优于气液分注,阻力系数分别为110,40;气液同注时,气液比1∶1的封堵效果最佳;注入速度对所形成泡沫的阻力系数影响不大。实验压力越高,所形成泡沫的封堵能力越强;有原油存在时泡沫的封堵能力减弱。泡沫更适合在气驱过程中封堵高渗透层,改善气驱效果。With resistance coefficient and plugging rate as assessment index, the plugging property of CO2 foam, at high temperature and high salinity situation, was studied by physical simulation experiment. The results indicated that when the gas and liquid were injected together, the resistance coefficient is greater than that gas and liquid alternated,the resistance coefficient is 110 and 40;When the gas and liquid were injected together,the resistance coefficient of gas ＆ liquid rate 1：1 is biggest in all gas ＆ liquid rate. The injecting speed has no effect to resistance coefficient caused by CO2 foam. The experiment pressure is higher;the resistance coefficient is bigger. Crude oil can weaken the plugging property. CO2 foam used in gas flooding has better plugging rate than in water flooding.

关 键 词：二氧化碳 泡沫 阻力系数 封堵率 

分 类 号：TQ027.3[化学工程] TE39[石油与天然气工程—油气田开发工程]