玛北油田深井压裂技术研究

Deep Well Fracturing Technology Used in Mabei Oilfield

玛北油田乌尔禾组油藏由于埋藏深、地应力高，造成前期压裂施工泵压高，加砂困难，施工成功率较低。通过分析存在的主要难点，形成了针对性的压裂改造思路。通过优化施工管柱及施工参数，优选压裂液和支撑剂，较好地解决了玛北油田深井压裂的难题，并为该地区建立了配套的压裂改造优化模式。

Because of the deep burial and high in-sute stress of reservoirs of Wuerhe Formation in Mabei Oilfield,it would induce high pump pressure,difficult gravel input and low success rate of operation in early fracturing treatments.By analyzing the major difficulties,the idea for fracturing and reconstruction is established.Through optimizing fracturing string and fracturing parameter,the fracturing fluid is selected,by which the problem is solved and a set of matching fracturing patterns are developed