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Research on oil-displacement effect of composite hot foam system
Author(s): 
Pages: 87-90,95
Year: Issue:  1
Journal: Acta Petrolei Sinica

Keyword:  composite hot foam systemfoaming agentfoam stabilizerinjection patterndisplacement effecthigh pressure flooding experiment;
Abstract: 复合热泡沫体系驱油是聚合物驱之后进一步提高原油采收率的一项重要接替技术.该体系具有泡沫驱油和热力采油的优点,又具有一定二氧化碳和氮气驱油的作用.实验选择HY-3表面活性剂为发泡剂,热烟道气为发泡气体,羧甲基纤维素纳为稳泡剂.实验结果表明,起泡体系与烟道气同时注入方式提高采收率的效果好于交替注入效果;随着复合热泡沫段塞的增大,驱替压差和泡沫驱采收率随之增加,优化出的泡沫段塞为0.6PV;复合热泡沫体...
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