从压裂前后作业情况认识阿塞拜疆K&K油田储层水敏特征  

WATER SENSITIVITY CHARACTERISTIC OF K&K OILFIELD IN PRE AND POST-FRACTURING IN AZERBAIJAN

作　　者：王晓泉[1] 丁云宏[2] 王振铎[2] 卢拥军[2] 陈彦东[2] 

机构地区：[1]中国石油勘探开发研究院 [2]中国石油勘探开发研究院廊坊分院

出　　处：《钻采工艺》2007年第1期38-40,145,共3页Drilling & Production Technology

基　　金：中国石油天然气勘探开发公司(CNODC)重点攻关项目"阿塞拜疆K&K油田压裂先导试验"部分研究成果。

摘　　要：压裂工程实验表明,K&K油田地层岩石粘土矿物含量高,储层粘土矿物高达16%,水敏性矿物蒙脱石高达93.6%,储层中孔、低渗,胶结疏松,杨氏模量4000MPa左右,极软地层,易出砂,导致压裂滤失量大、支撑裂缝短而宽,支撑剂嵌入大,提高了水力压裂缝长的设置和增加铺置浓度的难度。储层呈强水敏特征。文章通过压前井筒检查作业前后的对比分析及压后典型井作业后效果对比,进一步深化认识K&K油田地层的强水敏特征,并提出了今后作业中降低水敏伤害的措施。The fracturing operation experiment showed that the reservoir characteristic of K&K oilfield is strong water-sensitivity, the clay mineral content is high to 16%, and the montmorillonite content is 93.6%. Through comparative analysis of the operations of pre & post fracturing and typical wells′ effects after fracturing, the strong water sensitivity characteristic of K&K oilfield was understood and the measures to decrease the water-sensitive damage in the operation in the future were put forward.

关 键 词：强水敏 岩心实验 油层压裂 阿塞拜疆 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]