摘要
对低产停产的老井再次开发,压裂改造是一项行之有效的增产措施。室内评价了低分子聚合物压裂液体系的性能,结果表明,该压裂液具有较好的配伍性,在65℃下连续剪切1.5 h后粘度仍有102.5 m Pa·s,携砂性能良好,易破胶,低残渣。现场应用效果显示,已停产多年的七深8井恢复生产,累计产油1200多吨。
As low-yield and off production wells increase,hydraulic fracturing is an effective measure for yield.The result of evaluating performance properties of low-molecular polymer fracturing fluid shows the system has good compatibleness.The viscosity of jelly glue is 102.5 mPa·s at 65℃and 170 s-1 with shearing time of 1.5 h.Moreover,the gel has high sand-carrying capability,be easy broken and low residue.The result of Qishen 8 well field application shows that the well has put back production.Up to now,the accumulated oil production was more than 1200 t.
作者
宋君
薛成
SONG Jun;XUE Cheng(Department of Technology of The Third Oil Production Plant of Qinghai Oilfield,Haixi Qinghai 816400,China;Department of Oilfield Chemistry of Technology Institute of Drilling and Production of Qinghai Oilfield,Dunhuang Gansu 736202,China)
出处
《石油化工应用》
CAS
2015年第4期100-102,共3页
Petrochemical Industry Application
关键词
压裂液
携砂性
破胶性
现场应用
fracturing fluids
prop-carrying capacity
gel breaking property
field application
