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.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2006年第B10期79-81,共3页
Oil Drilling & Production Technology
关键词
二连油田
重复压裂
选井选层
压裂材料
Erlian Oilfield
refracturing
well and stratum selection
fracturing material
