Practice and understanding about the effective development of Block Ou31

Block Ou31 of Oulituozi oilfield belongs to thick banding glutenite oil reservoir with medium porosity and low permeability.For the conventional production of Upper S3 in this block there are some problems,such as low producers flow potential,fast decline of oil production based on natural depletion oil recovery method.So,in order to improve the infiltrating conditions of low permeability reservoirs,fracturing is implemented,and certain productivity has been got.The oil reservoir development results are obviously improved based on flood development in low permeability oil reservoirs,where high pressure water injection and injectors fracturing have been implemented,and these measures further guarantee the stable production.According to reservoir delineation and correlation,seismic data and reservoir prediction results,reservoir beds distribution in Sz3 oil reservoir is ascertained.For thin bed oil reservoirs and thick blocklike bottom water oil reservoirs in Sz3,horizontal wells are used to further improve the producing degree of the reservoir bed,and the entire development results of the block are improved obviously.The experience and understanding can be the guide for the development of the same type oil reservoir.