富昌油区长2注水效果评价
[Abstract]:The evaluation of reservoir water injection development effect always runs through the whole process of oilfield water injection development. The purpose of the evaluation of waterflooding development effect is to find out the factors that affect the development effect, analyze the existing problems, clarify the potential of oil field, study the technology of tapping potential, formulate supporting measures, carry out comprehensive adjustment, and improve the development effect. The research reservoir is mainly low permeability and ultralow permeability. For a long time, natural energy is used to develop the oil reservoir. The measures of increasing production are also the fracturing of reservoir as the main means. The fracturing of oil wells is too frequent, although the effect of increasing production after fracturing is obvious. But the formation pressure drops too fast, the output drops obviously. It has been 5 to 8 years since the injection well was transferred into the research area. Chang 2 reservoir group has been in the stage of rapid decline of production and rapid increase of comprehensive water cut. The purpose of this research is to evaluate the water injection effect systematically for the study area to find out the changes of reservoir production, pressure and water cut, water absorption capacity and injection-production balance, oil and water distribution and waterline advance, and reserve production. The effective measures are put forward to ensure that the oilfield can inject water well, enough water, fine water injection and effective water injection.
【学位授予单位】:西安石油大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:TE357.6
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