【摘要】 水平井开发油藏具有单井产量高、储量控制程度高、经济效益高等明显优势,得到广泛的应用。通过建立OTRA油田的三维地质模型,运用数值模拟技术对水平井布井、井网及注水等方面进行研究及优化,并根据油藏地质特征形成了适合该油田开发特点和开发政策的早期衰竭式开采、推迟"顶部"注水的注水开发模式。在方案实施中,依据储层内隔夹层的变化进一步优化调整水平井水平段在空间的分布。从实施效果看,6口水平井均钻遇油层有利部位,并获得高产。更多还原

【Abstract】 Horizontal wells have shown evident advantages of high per-well production,high degree of reserves control and high economic benefit in reservoir development.A numerical simulation has been conducted by building a 3D geological model of the OTRA oilfield to optimize horizontal well location,pattern and water injection.The development mode of early-period depletion and postponed water injection into the top reservoir is recommended.The distribution of horizontal section is optimized according to the variation of interbeds.The implementation of 6 horizontal wells in this oilfield indicates that all the wells had encountered favorable positions in the reservoir and attained high production.更多还原