摘要
酸化的基本原理是通过向地层注入酸液,解除近井地带可能的储层伤害或溶解储层岩石矿物,改善或提高储层的渗透性能,实现探井区块的勘探。按照工艺特点,酸化可分为基质酸化、酸洗和酸压;按照储层岩性不同,主要可分为碳酸盐岩储层酸化和砂岩储层酸化。目前,酸化技术已普遍应用于海上探井测试及完井作业中。
The basic principle of acidification is to inject acid into the formation to relieve possible reservoir damage or dissolve reservoir rocks and minerals in the near-well zone,improve or increase the permeability of the reservoir,and realize the exploration of exploratory well blocks.According to the characteristics of the process,acidification can be divided into matrix acidification,pickling and acid fracturing;according to different reservoir lithology,it can be divided into carbonate reservoir acidification and sandstone reservoir acidification.At present,acidification technology has been widely used in offshore exploration well testing and completion operations.
作者
赵志超
邱琨祁
ZHAO Zhi-chao;QIU Kun-qi(CNOOC EnerTech-Drilling&Production Co.,Ltd.,Tianjin 300452,China)
出处
《化工管理》
2021年第6期162-163,共2页
Chemical Engineering Management
关键词
探井测试
自喷井
产能测试
酸化
压裂
exploratory well test
self-blowing well
productivity test
acidification
fracturing
