Remaining Oil Distribution And Control Of Water Exploration Technology Research Of Reservoir Watered-out Zone

In this paper,taking the southeastern part of the K Nine₄₊₅ area Qigu reservoir as an example,which is controlled by lithology.Because there is no stable barrier between the inner layers of the J₃q² layer,and the mudstone barrier between the water layer and the main reservoir is unstable,which results that the production process in the production of water wells generally water,the use level of reservoirs is very low.Aiming at the characteristics of the reservoirs in the catchment area of the Zigu group in the southeastern part of K Nine₄₊₅ area,established the three-dimensional geological model and the numerical simulation was carried out.Analysised the use of the remaining oil formation mechanism and the distribution of law.Through the analysis of the numerical simulation of the typical well groups and the steam channeling and water invasion phenomenon in the actual production process,found the abnormal value.What's more,do the reservoir water body size simulating,loading,improving the interpretation of the model accuracy,optimize the block adjustment program and other means to find out the adjustment measures,and use the effect of oilfield measures to verify it.Through the use of improved well pattern,oil recovery,adjust the parameters such as injection and control parameters of the steam flow control technology to improve the steam volume and oil flooding efficiency,in the same time,processing technology by optimized perforation section and improved completion mode,which can effectively inhibit the edge of the water intrusion,extend the production rate of oil wells and improve the extent of reservoir utilization.