摘要
通过对榆林气田施工生产资料的分析,认为榆林气田有必要进行控制裂缝高度压裂设计。因此,文章在建立裂缝三维延伸数学模型的基础上,针对榆林气田的实际情况选取了施工排量、隔层应力差、压裂液粘度、杨氏模量、滤失系数等5个缝高影响参数,编制了正交试验方案,对榆林气田缝高影响因素进行了正交分析,得到了地层及施工等参数对缝高影响的主次关系,依次为隔层应力差、压裂液粘度、施工排量、杨氏模量、滤失系数。文章对于榆林气田控制缝高压裂设计具有指导意义。
We consider that it's necessary for Yulin gasfield to carry out a fracturing design to control fracture height based on an analysis on operation and production data.So,at first,the research established a 3D extension mathematic model for fractures;and then,selected five parameters influencing on fracture height,including operational displacement,poor stress in restraining barriers,viscosity of fracturing fluid,Young's modulus and leakoff coefficient;and worked out an orthogonal plan to analyze the influence factors of fracture height of Yulin gasfield;at last,obtained the effects of formation and operation parameters on the fracture height including poor stress of restraining barriers,viscosity of fracturing fluid,operation displacement,Young's modulus and leak coefficient.The research guides fracture design of its height control in Yulin gasfield.
出处
《天然气勘探与开发》
2008年第1期32-35,共4页
Natural Gas Exploration and Development
基金
西南石油大学研究生创新基金资助项目(编号:CXJJ27022)
关键词
榆林气田
裂缝高度
正交试验
影响因素
三维模拟
压裂
Yulin gasfield,fracture height,orthogonal experiment,influence factors,3D model,fracturing
