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在地层水矿化度变化大的地区,地层电性特征易受到地层水的影响,地层水矿化度的不同导致视地层电阻率的变化极为复杂,储集层含油气性不明显,这就给油水层的识别带来较大困难,容易漏失低阻油层。本文研究了滨县凸起南坡地层水变化规律及其成因,分析油水层在纵、横向上的变化规律,结果表明,研究成果可以指导测井解释,帮助确定测井解释结论,并且起到了很好的效果。
In areas where the salinity of formation water varies greatly, the electrical characteristics of the strata are easily affected by the formation water. The differences in the salinity of formation water lead to extremely complicated changes in the resistivity of the stratum, and the oil and gas in the reservoirs are not obvious The identification of oil and water layer to bring greater difficulty, easy to lose low-resistivity reservoir. In this paper, the variation rules of formation water in the south slope of Bin County are studied, and the variation regularity of oil-water layer in the vertical and horizontal directions is analyzed. The results show that the research results can guide the interpretation of logging data, help to confirm the logging interpretation conclusion, effective.