特种油气藏2011，Vol.18Issue(3)：106-108,3.
低渗油藏注水井解堵增注技术研究
Research on block-removal and injection stimulation technology for water injectors in low permeability reservoirs
摘要
Abstract
Some water injectors in the Zhuangxi low and extra - low permeability reservoirs are confronted with problems of high injection pressure (44 Mpa) , under - injection and poor injection response, as well as short life and low efficiency with conventional acid fluid systems. Laboratory experiment has been conducted on compound technology of decompression and augmented injection with sandstone acid - bioactivator. The experiment result indicates that the compound is highly functional as a retarding agent, corrosion inhibitor and in - depth block remover. The new activator can effectively reduce surface tension, change formation wettability, reduce pressure and augment injection. The technology provides guarantee for in - depth acidization and injection stimulation in water injectors and is of important significance to improving water flooding response in low and extra - low permeability reservoirs.关键词
低渗油藏/注水开发/砂岩酸/生物活性剂/增注技术Key words
low permeability reservoir/water flooding/sandstone acid/bioactivator/augmented injection分类
能源科技引用本文复制引用
李积祥,侯洪涛,张丽,田波,毛美丽..低渗油藏注水井解堵增注技术研究[J].特种油气藏,2011,18(3):106-108,3.基金项目
中石化胜利油田分公司桩西采油厂"欠注井深部解堵液体系研究"项目部分内容(K201007). （K201007）
