二连油田重复压裂改造技术  

Adjusted refracturing technology in Erlian Oilfield.

作　　者：林运兴 李秀美[1] 张军华[1] 刘玉强[1] 

机构地区：[1]华北油田公司二连分公司,内蒙古锡林浩特026017

出　　处：《石油钻采工艺》2006年第B10期79-81,共3页Oil Drilling & Production Technology

摘　　要：针对二连油田重复压裂效果逐渐变差、层间矛盾加剧、压裂过程易砂堵、压开层数少等问题,分析了选井选层对压裂效果的影响,优选了压裂液及支撑剂等压裂材料,并对初期压裂效果进行了评价。现场18口井重复压裂取得了较好的效果,2年内,累计增油23245t,平均单井增油1.291t,目前日增油49.57t。该研究为以后老井重复压裂提供了技术指导作用。Considering the refracturing failure,interzonal large contradiction,sand plugging during fracturing and has a few fractured layers in Erlian Oilfield,define well and stratum selection method for refracturin-g is analysed as influencing factor of fracturing effect. Fracturing material, fracturing fluid and proppant,was optimized,and the early effect was evaluated. The field application on 18 wells shows that it has good effect with a cumulative increment 23 245 t crude oil.

关 键 词：二连油田 重复压裂 选井选层 压裂材料 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]