六东区克下组稠油油藏注汽防缩膨实验研究  

Experiment research on shrink-proof expansion to huff and puff for Kexia heavy oil reservoir in Liudong area

作　　者：徐莎[1] 尹祥翔[1] 刘林泉[2] 张昕[2] 曾宪友[1] 

机构地区：[1]长江大学油气钻采工程湖北省重点实验室,武汉430100 [2]中国石油新疆油田分公司石西油田作业区,新疆克拉玛依834000

出　　处：《岩性油气藏》2014年第2期125-127,132,共4页Lithologic Reservoirs

基　　金：中国石油天然气集团公司科技项目"六东区克下组砂砾岩稠油油藏解堵;防膨工艺技术研究"(编号:2010-228-WK)资助

摘　　要：针对六东区克下组稠油油藏的地质特征,在蒸汽吞吐开采之前,开展了防缩膨实验研究。以储层敏感性评价、防缩膨剂优选及静态性能评价结果为依托,通过对防缩膨剂耐温性能的评价和岩心流动等实验,确定了防缩膨周期、处理半径及现场注入程序。研究表明:适用于六东区克下组的最佳防缩膨剂分别为质量浓度为1%的HCS-G和质量浓度为1%的EXHCS,均可耐230℃高温,能满足现场蒸汽吞吐要求;确定防缩膨处理半径为3.5 m,防膨周期约为2年,缩膨周期约为1年,并设计了现场注入程序。Based on geologic characteristics of Kexia heavy oil reservoir, research on shrink-proof expansion treatment was carried out before huff and puff test. Combined with the results of reservoir sensitivity evaluation, shrink-proof expansion optimization and static performance evaluation, through the research of temperature resistance performance and core flow experiments, this paper determined the anti-swelling cycles, treatment radius and injection program on site. The results show that the favorable anti-swelling agents are 1% HCS-G and 1% EXHCS, they are resistant to high temperature of 230 ~C, and can meet the requirements of steam stimulation; The shrink-proof treatment radius is 3.5 m, the anti-swelling cycle is about 2 years, and shrinkage and expansion cycle is about 1 year. And this paper also designed the injection program on site.

关 键 词：蒸汽吞吐 防缩膨 处理半径 注入程序 

分 类 号：TE345[石油与天然气工程—油气田开发工程]