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本文根据二维信息分配方法及模糊近似推论公式,提出一种便于野外实际应用,精度较高,适应各种测井参数进行油气评价的数学模型。只要选定具有代表性的测井参数建立模糊关系矩阵,它就能够对储集层的含油性质进行定量研究,从而避免了建立隶属函数和选择权的模糊集合的一系列处理。文中分别对华北油田的一口井剖面、一个断块和一个比较差的油田进行了分析判断,都达到了较高的精度。其中,晋45断块解释结果与试油结论完全一致。
According to the two-dimensional information distribution method and fuzzy approximate deduction formula, this paper presents a mathematical model that is convenient for field application and high accuracy, and suitable for various logging parameters for oil and gas evaluation. Once the representative logging parameters are selected and the fuzzy relation matrix is established, it can quantitatively study the oil-bearing properties of the reservoir and thus avoid a series of processes that establish fuzzy sets of membership functions and options. In this paper, a well profile, a fault block and a relatively poor oil field in Huabei Oilfield are respectively analyzed and judged, and the high precision is achieved. Among them, Jin 45 block interpretation of the results and test oil exactly the same conclusion.