关键词: 高含水, 古地貌, 剩余油, 挖潜, 任丘油田

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