化学吞吐开采稠油技术研究  

CHEMICAL HUFF PUFF METHOD FOR VISCOUS OIL RECOVERY

作　　者：李牧[1] 杨红[1] 唐纪云[1] 刘宏伟[1] 边芳霞[1] 

机构地区：[1]辽河油田钻采工艺研究院油化所

出　　处：《油田化学》1997年第4期340-344,360,共6页Oilfield Chemistry

摘　　要：按照蒸汽吞吐的模式将多种化学剂组成的吞吐液注入油层，使其与原油发生乳化，降低油水的流度比，改变地层的润湿性和毛管力，以提高稠油产量和采收率。室内模拟实验和现场试验证明化学吞吐液可以起上述作用。化学吞吐为稠油的开采，特别是提高蒸汽开采稠油的采收率开辟了新的途径。A new method, chemical huff puff, for viscous crude oil recovery has been worked out and put into field tests in several oil wells in Liaohe. The chemical agent injected into the well and produced together with oil is a 0.5-2.0% (v/v) aqueous solution containing 0.5-2.0% emulsificator, 0.5-1.0% dispersant, 0.5-2.0% micellization agent, and 0.5-0.7% phase transforming agent. The performance properties of the solution are investigated in detail, these are: emulsifying/viscosity reducing capacity, oil washing ability, stability at standing and thermal resistance, oil displacement in micromodels, core flooding efficiency, and chemical and steam huff puff on cores with TC observation. Chemical huff puff can be applied individually and in combination with steam huff puff.

关 键 词：化学吞吐 采油化学剂 稠油开采 

分 类 号：TE345[石油与天然气工程—油气田开发工程]