水淹层混沌分形识别方法探讨

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (1): 124-126.

水淹层混沌分形识别方法探讨

王任一^1,2, 王前荣², 张斌成²

1.中国地质大学,武汉430074;
2.中国石油吐哈油田分公司勘探开发研究院,新疆哈密839009

收稿日期:2004-03-09 修回日期:2004-03-09 发布日期:2020-10-19
作者简介:王任一（ 1968-）,男,甘肃天水人,高级工程师,在读博士研究生,开发地质,（Tel）0902- 2760533（E- mail）wry2899@163.com.

Approach to Identification Method for Chaos Fr actal Char acter istic of Water -Flooded Zone

WANG Ren-yi^1,2, WANG Qian-rong², ZHANG Bin-cheng²

1. China University of Geosciences, Wuhan, Hubei 430074, China;
2. Research Institute of Exploration and Development, Tuha Oilfield Company, PetroChina, Hami, Xinjiang 839009, China

Received:2004-03-09 Revised:2004-03-09 Published:2020-10-19

摘要/Abstract

摘要： 地球物理测井曲线间微差形态波形的复杂程度隐含着储集层含油气性的信息,可以用混沌动力学系统加以刻画,并且其混沌吸引子是低分数维的。油层相空间吸引子明显呈现混沌特性,具有自相似结构,关联维数谱相对呈高维快速收敛状;而水淹层和水层的相空间吸引子明显呈混沌性减弱之趋势,系统趋于简单有序,关联维数谱呈低维缓慢收敛状。信号的混沌动力学特性仅取决于其复杂程度而与其绝对值的大小无关,基于测井信息的混沌分形特征识别水淹层的方法,对利用传统测井解释理论判别比较困难的“ 低阻油层和高阻水淹层（水层）”有较强的识别能力。

关键词: 水淹, 测井曲线, 混沌, 分形学, 识别

Abstract: The complex differential waveforms between geophysical logging curves conceal petroliferous information of reservoirs, which can be described by chaos dynamics system. And the chaos attractor is of low fractional dimension. The study shows that the phase space attractor of pay zone is characterized by self-scaling structure and relatively high dimension and fast convergence of correlation dimension spectrum; the phase space attractor of water-flooded zone or water layer is of clearly weakening chaos characteristic and simple/in-order system with low dimension and slow convergence of correlation dimension spectrum. The signal chaos dynamics characteristic only depends on the signal complexity level and is independent of the signal absolute value. It is concluded that the method for well logs-based chaos fractal characteristic to identify water-flooded zone can be well applied to distinguish low-resistivity pay zone and high- resistivity water-flooded zone or water layer that are badly identified by using conventional well log interpretation theory.

Key words: water flooded zone, well log curve, chaos, fractal, identification

中图分类号:

P631.9

王任一, 王前荣, 张斌成. 水淹层混沌分形识别方法探讨[J]. 新疆石油地质, 2006, 27(1): 124-126.

WANG Ren-yi, WANG Qian-rong, ZHANG Bin-cheng. Approach to Identification Method for Chaos Fr actal Char acter istic of Water -Flooded Zone[J]. Xinjiang Petroleum Geology, 2006, 27(1): 124-126.

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