永8复杂断块油藏水平井地质优化设计  

Optimizing geological design of horizontal wells in Yong 8 complex fault block oil reservoir.

作　　者：孙国[1] 李顺明[1] 刘志宏[1] 彭尚谦[2] 

机构地区：[1]胜利油田有限公司地质科学研究院 [2]胜利油田有限公司东辛采油厂

出　　处：《油气地质与采收率》2002年第4期55-57,共3页Petroleum Geology and Recovery Efficiency

摘　　要：永 8块为复杂断块油藏 ,若全部采用直井开发 ,不但井网密度大、开采时间长 ,而且直井防砂后产量低 ,开发效益不明显。水平井开发的可行性论证认为 ,出砂的复杂断块油藏适合用水平井开发 ;水平段应与大断层保持一定的距离且位于正韵律油层的中上部。采用直井和水平井相组合的布井方式 ,可充分发挥直井钻遇油层层数多和水平井与油层接触面积大、产量高的优势 ,从而提高复杂断块油藏的开发效果。Yong 8 block is a complex fault block oil reservoir, if vertical wells were only applied in the development, not only well spacing density would be big and producing time would be long, but also low production and poor development benefit would appear after sand control. The feasibility of development by horizontal wells is discussed. It is considered that the horizontal well is suitable for the development of the complex fault block oil reservoir with sand production; horizontal interval should be kept certain distance to major fault and lie in middleupper part of the positive rhythm oil reservoir. More oilbearing layers of formations may be drilled by using the vertical wells, bigger contact area with oilbearing formations and high production may be gained by using the horizontal wells, if hole pattern of the vertical wells combined with the horizontal wells is adapted, above advantages may be given fully, so the development effect of the complex fault block oil reservoir will be improved.

关 键 词：永8复杂断块油藏 水平井 地质 优化设计 开发方式 数值模拟 

分 类 号：TE355.6[石油与天然气工程—油气田开发工程]