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油层被水淹后,油层的自然电位、电阻率、声波特征、核物理性质都会发生变化。同时不同的注水量,注水矿化度、地层性质都会使储层测井参数发生变化。本文对水淹机理实验研究,并结合测井静态和动态资料,寻找反映水淹层敏感的测井曲线,建立不同水淹程度的标准,定性,定量识别划分油水层和水淹层,从而找到适合鄯善油田的水淹层识别方法,并在油田二次开发中得到较好的应用。
After the reservoir is flooded, the natural potential, resistivity, acoustic characteristics and nuclear physical properties of the reservoir will change. At the same time, different water injection quantity, water injection salinity, and formation properties will change logging parameters of the reservoir. In this paper, the experimental study of flooding mechanism, combined with the well logging static and dynamic data, find the well-logging curve reflecting the water-flooded layer, establish the standard of different flooding levels, qualitatively and quantitatively identify the oil-water layer and the flooded layer, so as to find Suitable for Shanshan oilfield flooded layer identification method, and in the secondary development of the oil field to get a better application.