Experimental study of the microscopic fractal characteristics of limestone etched by acid

Experimental study of the microscopic fractal characteristics of limestone etched by acid
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酸蚀石灰岩微观分形特征的实验研究

DOI:
10.1016/j.jngse.2014.06.017
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发表时间:
2014-11
影响因子:
--
通讯作者:
Guofa Ji
Guofa Ji
中科院分区:
工程技术2区
文献类型:
--
作者:
Yiting Wang;Zhaozhong Yang;Jinzhou Zhao;Guofa Ji

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对于酸性压裂,裂缝的导流能力在很大程度上取决于宏观反应速率和裂缝壁的微观腐蚀特征。采用正交试验法对酸与石灰石进行了一系列的反应实验。考察了酸浓度、反应温度、反应时间和酸类型等因素。讨论了这些因素对蚀刻样品宏观反应速率和微观分形特征的影响。分析了蚀刻石灰石试样宏观反应速率与微观分形特征的关系。
For an acid fracturing treatment, the conductivity of fractures strongly depends on both macroscopic reaction rate and microscopic etched characteristics of fracture walls. A series of experiments of reaction between acid and limestone have been done using orthogonal arrays. Acid concentration, reaction temperature, reaction time and acid type were taken into account. The influences of these factors on the macroscopic reaction rates and microscopic fractal features of the etched samples have been discussed. The relationship between macroscopic reaction rates and microscopic fractal characteristics of etched limestone samples has been analyzed.
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