摘要
本文从研究油层微观孔隙结构出发，揭示了影响马岭油田采液指数下降的主要因素，指出了清防垢、注好水等提高油藏采液指数，改善油田开发效果的新途径，不但对马岭油田有一定的指导作用，而且对其它注水开发油藏也有一定的借鉴价值。
Analyses of microstructure of pores in oil pays revealed that the main factors accounted for the decrease of producitivity index in Maling oilfield might be the scale deposits in pore throats after water-injection, the dilatation of clay minerals, and the migration of fragments of the dilated clay minerals. These factors, along withthe corrosion products of injected water, resulted in the worsenning of the microstructure of pores in oil pays,and the plugging of pore throats near wellbore in oil pays. Consequently, the author suggested that for Scale deposits cleaning and protecting, water injecting properly should be one of the most effective methods to inerease the productivity index and improve the recovery of this oil field.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1995年第2期51-54,共4页
Petroleum Exploration and Development
关键词
注水
孔隙
油层
油田注水
驱油
Water flooding, Pore throat, Scale deposit, Clay mineral, Fluid productivity index, Maling oilfield
