太79井砂砾岩储层大型压裂技术研究与实践  

Study and Practice about Big Scale of Fracture Tech in Gravel Rock Reservoir of Tai79 Well

作　　者：许泽君[1] 路占军[1] 刘兰英[1] 夏红[1] 

机构地区：[1]华北油田分公司勘探部,河北任丘062552

出　　处：《油气井测试》2008年第2期43-44,共2页Well Testing

摘　　要：华北油田二连探区分布着大量的砂砾岩储层。砂砾岩储层与常规的砂岩储层岩性不同，缝高控制难，油气显示差，物性差，压力传导慢，储层岩石有一定的塑性特征，可动流体饱和度从极低到中等，反映储层的非均质性极强。压裂设计的主要目标是低伤害、造长缝和控缝高。经在太79井阿尔善组71～72号层上进行二连探区迄今为止规模最大的加砂压裂试验，成功加砂达75．02m^2，压后取得了明显效果，日产油达13．16m^2，比周围邻井高3倍以上，且不含水。太79井砂砾岩储层大型压裂及取得的良好效果，对类似储层的压裂改造，具有一定的现实指导性。Mounts of gravel rock reservoirs distribute in Erlian exploration region of Huabei oilfield and the objective of fracture design is low damage, creating long gap and controlling gap height. The biggest scale of sanded fracture up to now to No.71~72 layer of A'Ershan unit in Tai79 well is conducted successfully which adds sand to 75.02 m3 and whose production per day reaches 13.16 m3. It is 3 times higher than adjacent well and not contains water. Its good result has a practical guidance for similar reservoir.

关 键 词：砂砾岩 探井 特低渗储层 大型压裂 

分 类 号：TE122.24[石油与天然气工程—油气勘探] TE357.1