多脉冲高能气体压裂-二氧化氯复合解堵技术研究  

Combination plug-removing technology of multi-pulse high-energy gas fracturing with ClO_2 treatment liquid

作　　者：张杰[1] 张伟峰[2] 宋和平 董凤鸿[4] 

机构地区：[1]西安石油学院压裂中心,陕西西安710065 [2]胜利油田孤岛采油厂,山东东营257000 [3]延长油矿下寺湾钻采公司,陕西延安716000 [4]长庆油田分公司勘探开发处,陕西西安710021

出　　处：《西安石油学院学报（自然科学版）》2003年第3期21-24,共4页Journal of Xi'an Petroleum Institute（Natural Science Edition)

摘　　要：对多脉冲高能气体压裂—二氧化氯复合解堵的作用机理进行了研究 ,该技术是在多脉冲高能气体压裂产生多条裂缝的同时 ,用二氧化氯解堵剂进一步解除因压裂液、碳酸钙和硫化亚铁等酸溶性垢、铁细菌、硫酸盐还原菌的代谢产物等对地层的堵塞 ,以达到最大限度地增强油气层导流能力 .Some fractures are produced near wellbore zone by multi pulse high energy gas fracturing, and they link up with natural fractures. At the same time as fracturing or after fracturing, ClO 2 treatment liquid is squeezed into formation to remove the organic matter, inorganic matter and bacteria in oil reservoir, so the permeability of the oil reservoir is improved. This treatment technology of oil reservoir gives full play of both high energy gas fracturing and ClO 2 treatment. It was applied to 5 wells in Shanbei oilfield in 2000, and the results show that this technology can effectively remove the pollution of fracturing fluid, dirt and bacteria to oil reservoir near wellbore zone.

关 键 词：多脉冲高能气体压裂 二氧化氯 复合解堵 油气井 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]