低碳复合有机酸解堵技术  

Application of organic acid Composite Blockage Removal Technology

作　　者：陈锐[1] 

机构地区：[1]西安石油大学,陕西西安716000

出　　处：《内蒙古石油化工》2015年第19期124-125,共2页Inner Mongolia Petrochemical Industry

摘　　要：义正油田长6油层酸敏性强,矿物中的高岭石和绿泥石含量较高,不宜采用常规酸化解堵措施。该区油层伤害以敏感性伤害、措施及开采过程中的有机、无机物堵塞为主。低碳复合有机酸主要有缓速酸、有机溶剂、氧化剂等组成,依靠缓释酸的溶蚀性,有机溶剂的溶解性及其它成分的协同作用,达到解堵的目的。室内评价结果表明,低碳复合有机酸可以有效解除油井的高分子聚合物、无机垢的堵塞。在合理选井的基础上,将其应用于现场,取得了良好的效果。Yizheng oilfield C6 oil reservoir is acid sensitivity,and the main reservoir minerals of C6 oil reservoir are kaolinite and chlorite,thus,the conventional acidizing blockage removal technology is not suitable for C6 oil reservoir.Reservoir damage is mainly sensibility damage,pluged by organic and inorganic matter produced by stimulation and exploitation process in this area.Co-organic acid is mainly compose of retarded acid,organic solvent,oxidant,etc.Depending on dissolution by slowly releasing acids,solubility in organic solvents and synergism of other components to achieve the goal of blockage removal.The test indoor results showed that organic acid composite blockage removal technology can remove blockage produced by high molecule polymer,inorganic scale effectively.The organic acid composite blockage removal technology has been applied to the scene to remove the reservoir blockage successfully and it has made a good effect on the basis of selecting oil well correctly.

关 键 词：复合有机酸 堵塞 油层伤害 解堵 现场应用 

分 类 号：TE358[石油与天然气工程—油气田开发工程]