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应用变尺度分形技术研究缝洞型碳酸盐岩储层的非均质性
石油物探
2003年 42卷 第No. 3期
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Title
Application of fractal techniques in heterogeneous carbonate reservoir
单位
成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059
Organization
State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Chendu University of Technology, Chengdu 610059, China
摘要
分形几何理论已被广泛应用于储层非均质性研究中。运用分形理论的变尺度分析技术(R/S分析),通过对塔河油田奥陶系岩溶缝洞型碳酸盐岩储层测井曲线的分析,提出了利用DR指标计算岩溶缝洞型储层分维值的方法。对该地区岩溶缝洞发育的典型井段的测井数据进行了实际处理,并对岩溶缝洞发育程度定量评价进行了尝试性的解释,对分维值的高低与岩溶缝洞发育程度之间的关系进行了初步研究。
Abstract
Fractal theory has been widely used in the description of reservoir heterogeneity. Through an analysis of logging data from the Ordovician fractured reservoirs in Tahe oilfield, a fractal method for calculation of fractal dimension was developed. The study of the relationship between enrichment of karst fissure cavity and fractal dimension was carried out. The results were used for quantitative evaluation of the fractured reservoirs in the oilfield.
关键词：
分形;
分维;
岩溶缝洞;
碳酸盐岩储层;
测井曲线;
Keywords:
fractal;
fractal dimension;
karst-fissure-cavity;
carbonate reservoir;
logging;
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