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碳氧比能谱测井方法是在套管井中用于划分油水层、确定含油水饱和度及岩性的一种有效方法。根据碳氧比能谱测井的原始谱线资料 ,提出了一种判断油层水淹程度的指数———水淹指数。通过实际资料验证 ,该指数对水淹程度有很好的判断作用 ,具有良好的应用前景。
C / O logging is an effective method for dividing oil-water layers in cased-hole wells to determine oil-water saturation and lithology. According to the original spectral data of carbon and oxygen ratio log, a index of flooding index to determine the degree of water flooding is proposed. Through the actual data verification, the index has a good judgment on the degree of flooding and has a good application prospect.