碎屑岩油藏YN-1水平井堵剂的性能评价与应用

摘要

根据碎屑岩油藏的特征,研制了能在地层中有效驻留,并能形成界面交结强度大、有效期长的YN-1水平井液凝化学堵剂,评价了凝胶体强度、耐温性、抗盐性、堵剂注入能力、堵塞能力等性能,并进行了堵水施工应用.结果表明,该堵剂的封堵降水效果明显,能够满足现场需要.%According to the characteristics of clastic rock reservoir, YN-1 horizontal well liquid condensate chemical plugging agent was developed,which can reside in the formation effectually,and can form interface with high intensity. We evaluated a series of performance experiments in view of the liquid gel plugging agent from the following aspects;gel strength,high temperature resistance,salt resistance,injectivity, plugging ability,etc. We carried out water plugging construction application. The results showed that the plugging effect is obvious,and the moisture effectively reduced. This plugging agent can meet the practical need.