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本文从测井资料数字处理和解释的角度出发,在系统考察分析常用的各种最优化方法的基础上,认为采用抛物线插值法作一维搜索和变尺度法中的BFGS法作多维搜索相结合的最优化方法,用双水解释模型对泥质砂岩储集层进行评价是适宜的。为此编制了最优化测井解释程序,对胜利油田砂泥岩的测井资料进行了实际处理,并针对本地区的地质特点,对测井响应方程和解释参数的选择等重要问题进行了探讨。数字处理的结果表明,所获得的储集层参数和岩性矿物成分,与岩心分析资料和斯仑贝谢公司的GLOBAL程序处理结果相当吻合。证明它有较好的效果。
Based on the digital processing and interpretation of logging data and based on the various optimization methods commonly used in system investigation and analysis, this paper considers that parabolic interpolation method can be used to make one-dimensional search and BFGS method in variable-scale method for multidimensional search , It is appropriate to evaluate the shaly sands reservoir with the dual water interpretation model. Therefore, the logging interpretation program of sandstone-muddy shale in Shengli Oilfield has been worked out and the logging logarithm of Shengli Oilfield has been processed. According to the geological features in this area, the logging response equation and the choice of interpretation parameters are discussed. The results of the digital processing show that the reservoir parameters and lithologic mineral compositions obtained are in good agreement with the core analysis data and the results from the Schlumberger GLOBAL program. Prove it has a good effect.