多重分形在测井资料裂缝研究中的应用

The application of multifractals in fracture research

石油大学（华东）勘探系, 东营 257062

Department of Exploration, University of Petroleum, Dongying 257062

在测井资料的解释中,通常是利用双侧向曲线的数值大小来研究裂缝的发育情况,由于地区、岩性、深度等因素的不同,仅根据双侧向曲线数值大小确定裂缝发育的边界具有很大的人为因素和随机性。本文利用多重分形对其进行研究,由于多重分形谱包含非常丰富的信息,可以大大提高裂缝发育研究的可靠性,并可较准确地确定裂缝发育的边界。

In the interpretation of well log, the fracture distribution is usually researched by using the value of the dual laterolog curves. As the factors such as region, lithology, and depth are different, determining the fracture border only by use of dual laterolog curves is very artificial and random. In the paper, multifractals are used to study these things. The multifractal spectrum contains very rich information, therefore the reliability of studying fracture distribution is raised greatly. Also, the fracture border can be determined accurately.