The Identification And Evaluation Of Excellent Source Rockin Tanan Sag And Nanbeier Sag

Shen67block is one of the two mid-high permeability sandstone blocks of Shen Yangproduction plant in Liao He oil field. After more than twenty years of water floodingdevelopment, Shen67block has appeared many development problems now. The first one isadvantage of water channel has been formed, which lead to water flooded condition graduallyintensified. The second one is the purpose of improve the block recovery efficiency is difficultto achieve with the current water injection status and technology, and the block has enteredthe late stage of water flooding development, with the traditional water flooding developmenthas in limit state. the profile control and oil displacement technology has formed a perfecttheory and implementation method at present, which as a kind of effective means to improvethe oil displacement effect of mid-high permeability sandstone reservoir. On the basis of thefine geologic study in Shen64block, reservoir geological features are recognized again.According to the results, the old oilfield development system is rebuilt with introduction ofnew concept of oil displacement, which can greatly improve the ultimate recovery in the oilfield and maximum limit access to the underground oil resources, and eventually improvereservoir recovery factor.