萨零组油层注入HLX黏稳型驱油剂实践与认识  

PRACTICE AND UNDERSTANDING OF OIL-DISPLACING HLX TYPE CLAY INHIBITOR USED IN SALING FORMATION

作　　者：常淑云[1,2] 白艳明[2,3] 樊自立[2] 刘鹏[2] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [3]浙江大学地球科学系,杭州310027

出　　处：《大庆石油地质与开发》2010年第5期154-157,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：松辽盆地喇萨杏高含水油田提高采收率示范工程（2008ZX05052）资助.

摘　　要：萨零组储层是强水敏、强盐敏、中等偏强速敏、中等偏强酸敏、弱压敏储层,开发过程中必须添加防膨稳定剂,而选择合适的黏土稳定剂对开采低渗透的萨零组储层具有重要意义.室内驱油实验表明,HLX黏稳型驱油剂提高采收率幅度明显高于水驱,较普通型黏土稳定剂可高出10个百分点.HLX黏稳型驱油剂除具备防止黏土运移和膨胀的作用外,对油层中的黏土稳定作用具有长期、高效、用量低的特点,溶液具有强活性.萨零组油层现场试验取得了较好效果,HLX黏稳型驱油剂注入质量分数为3% 时,增油效果明显,研究可对类似低渗透油藏的高效开发提供依据.Saling reservoir is characterized by strong water and salinity sensitivity, moderate-strong speed and acid sensitivity, as well as slight pressure sensitivity, which is inferred that anti-swelling inhibitor needs to be added during the reservoir development, moreover, selecting the appropriate clay inhibitor is of importance to the recovery of low-permeability Saling formation reservoir. According to the laboratory oil-displacing experiment, recovery enhanced by HLX oil-displacing clay inhibitor is much more prominent than the results by water flooding, and the reovery by HLX, if compared with ordinary clay inhibitors, is generally 10% higher. HLX oil-displacing clay in- hibitor can prevent clay from migrating and swelling, besides that, it has the characteristics as durable, high ef- fective and cost-save on clay stabilization of reservoir. Furthermore, the solution is highly active. After the application of HLX in Saling reservoir, a satisfying result and deepening understanding have been achieved, oil increases obviously in Saling reservoir when injected concentration of HLX reaches 3% , for the analogous low-permeability reservoir, this research can provide reference and guidance for high effective development.

关 键 词：萨零组储层 HLX黏稳型驱油剂 驱油效果 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]