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提出了利用ＦＭＩ成像测井信息定量计算溶洞裂缝性碳酸盐岩储层面元大小、溶洞分布百分比、裂缝平均宽度、平均长度和裂缝发育密度等参数的方法。该方法包括利用Ｒｏｂｅｒｔｓ算子进行溶洞边缘检测，用基于方向曲线的方法进行边缘跟踪和细化，从而实现溶洞的自动提取和定量计算。该方法通过提取特征点、跟踪得到特征点方向序列、并利用其对应的方向曲线进行溶洞判别。其算法计算量较少，判决速度快，具有良好的实时处理性和适应性
A method of quantitatively calculating parameters such as surface area size, distribution percentage of karst caves, average width of cracks, average length and density of fractures in fractured carbonate reservoirs using FMI imaging logging information is proposed. The method includes the use of Roberts operator to detect the edge of the cave and the edge tracking and refinement based on the direction curve method to realize the automatic extraction and quantitative calculation of the cave. In this method, the feature points are traced to get the sequence of the feature points, and the karst cave is discriminated by using the corresponding direction curve. The algorithm is less computationally intensive, the decision speed is fast, and has good real-time processing and adaptability