The Research And Application Of Deep Profile Control And Flooding In Twenty-six Area Of Huanxiling Oilfield

Water shutoff profile control technology has been the oil field development to improve the water reservoir effect effective means to achieve stable production of [1]. But Huanxiling oilfield has entered the high water or high water cut exploitation of, oil field water flooding problem more complex. Long-term water driven further exacerbate heterogeneity, reservoir forming a large number of hypertonic accumulated large pore channels or make formation pressure field and flow lines form field set, the water flow between the oil wells are formed channel advantages, seriously affecting Huanxiling reservoirs water flooding effect.According to this study twenty-six Area Of Huanxiling oilfield reservoir characteristics and well injection profile case, the application of the overall tone of deep water wells drive technology to control the rate of increase and improve the use of secondary development experimental zone reservoir level. Through the feasibility of deep flooding detailed analysis, preparation of reservoir flooding engineering design, screening pilot test area, for the purposes of research and development layer deep water flooding, using reasonable construction process under certain conditions tune parameters Flooding purpose injection layer, the use of chemical agents occurs at reservoir conditions to form blockages, thereby improving the absorption cross-section in the longitudinal direction, effectively limiting the high permeability layer absorbent, increase water pressure to solve the various blocks that occur during mining conflicts continue to further expand the swept volume, improve the efficiency of water flooding.Field application effect analysis, flooding the corresponding test wells group aqueous stability, reduce the surface oil, increasing oil effect is obvious. This method can solve Huanxiling oilfield water rises, water flooding low efficiency, low recovery of degree.