摘要
叙述了在牛 35块Es3 中低渗透砂岩油层酸化中实施综合油层保护技术及现场应用取得的效果。模拟酸化试验表明 ,该区储层岩心酸化效果很好 ,但现场实施酸化时却没有任何增产表现。在认清措施储层特征、地层油水特征基础上 ,采用常规稀土酸体系作为基本酸液配方 ,对油层保护酸液添加剂进行了优选 ,有效地防止了低渗透油田酸化过程中对油层的伤害 。
This paper represents formation protection and its results in low permeable sandstone acid treatment of Niu 35 block. Simulated acid tests showed that acid treatment could effectively improve the core permeability in lab,but no effect in the filed aiding. Through analysis of formation and its fluid propensity,low permeable sandstone acidizing,employing thin mud acid systems and optimum selection of acid addictives,effectively prevented damage in low permeable sandstone acidizing and significantly improve the formation permeability of Niu 35 block.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2003年第1期55-57,共3页
Oil Drilling & Production Technology
关键词
胜利油田
牛庄油田
酸化
油层保护
防膨剂
抗淤渣剂
助排剂
防乳剂
acid treatment formation damage prevention low permeability clay stabilizer anti sludge agent cleanup additive emulsion preventative surfactant
