Abstract: Renqiu WMS reserovir is on the high water cut development period after 20 years production.Elaborate explain of 3D seismic data and technique of variation provide credible technique which assure the study of top WMS.The errors between drilling data and the actual depth of enter buried hill was less than 20m.The study gave the following conclusions: (1)Residual oil controlled by ancient top of buried hill is the best potential type in later period of reservoir development.(2)The research of relationships between top of buried hill and geological formation is the main means to find out reservoir temaining oil.(3)Upper part of two block of fault is the formation for residual oil.This study provided solid technique support for keeping stable yield of high water cut formation of the reservoir.

Key words: hign water cut, palaeogeomorphology, residual oil, excavating potential, Renqiu Oil field

摘要： 任丘雾迷山组潜山油藏经历了20余年的开采历程,已经进入了高含水后期开发阶段.三维地震资料的精细解释及其变速构造成图技术为潜山顶面形态古地貌的研究和认识提供了可靠的技术保证.钻井资料证实:调整井实钻进山深度与地震资料解释的进山深度误差在20m的范围内.与潜山顶面形态古地貌有关的剩余油分布描述工作认为:(1)受潜山古地貌控制的剩余油是油藏开发后期挖潜最现实、效果最好的潜力类型.(2)潜山古地貌与地质层位的配置关系研究是寻找剩余油富集区的重要途径.经过近三年的实践,收到较好的效益,为任丘雾迷山组油藏高含水期继续保持稳产提供了坚实的技术基础.

关键词: 高含水, 古地貌, 剩余油, 挖潜, 任丘油田