塔中和轮南地区奥陶系碳酸盐岩储集层不仅基质孔隙度低 ,而且裂缝、溶洞的产状和分布复杂多变 ,这给常规测井解释方法带来很大的困难。在综合分析多种最优化测井解释方法的基础上 ,根据测井响应方程和误差理论建立目标函数 ,采用多维搜索的变尺度法与一维搜索的抛物线插值法相结合的最优化方法 ,经过适当的算法改进 ,对该区多口井的测井资料进行了逐点处理。结果表明 ,该方法用于碳酸盐岩储层测井解释效果良好 ,具有推广应用价值 The Ordovician carbonate reservoirs in Tazhong and Lunnan areas not only have low matrix porosity, but also have complicated occurrences and distributions of fractures and karst caves, which brings great difficulties to conventional logging interpretation methods. Based on the comprehensive analysis of a variety of optimization logging interpretation methods, an objective function is established according to the well logging response equation and the error theory. The optimization method combining the multi-dimensional search variable scale method and the one-dimensional search parabola interpolation method is adopted. The algorithm improves the logging data of multiple wells in this area. The results show that this method is effective for interpretation of carbonate reservoir logs and has the value of popularization and application