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复杂碳酸盐岩储层裂缝预测方法对比性研究

祖克威 程秀申 罗周亮 尹楠鑫 王楷

祖克威, 程秀申, 罗周亮, 等, 2018. 复杂碳酸盐岩储层裂缝预测方法对比性研究. 地质力学学报, 24 (4): 465-473. DOI: 10.12090/j.issn.1006-6616.2018.24.04.048
引用本文: 祖克威, 程秀申, 罗周亮, 等, 2018. 复杂碳酸盐岩储层裂缝预测方法对比性研究. 地质力学学报, 24 (4): 465-473. DOI: 10.12090/j.issn.1006-6616.2018.24.04.048
ZU Kewei, CHENG Xiushen, LUO Zhouliang, et al., 2018. THE COMPARATIVE ANALYSIS OF DIFFERENT METHODS FOR FRACTURE PREDICTION IN COMPLEX CARBONATE ROCK RESERVOIR. Journal of Geomechanics, 24 (4): 465-473. DOI: 10.12090/j.issn.1006-6616.2018.24.04.048
Citation: ZU Kewei, CHENG Xiushen, LUO Zhouliang, et al., 2018. THE COMPARATIVE ANALYSIS OF DIFFERENT METHODS FOR FRACTURE PREDICTION IN COMPLEX CARBONATE ROCK RESERVOIR. Journal of Geomechanics, 24 (4): 465-473. DOI: 10.12090/j.issn.1006-6616.2018.24.04.048

复杂碳酸盐岩储层裂缝预测方法对比性研究

doi: 10.12090/j.issn.1006-6616.2018.24.04.048
基金项目: 

国家科技重大专项 2016ZX05017-001

详细信息
    作者简介:

    祖克威(1986-), 男, 高级工程师, 博士, 主要从事储层裂缝评价预测研究。E-mail:zukewei1234@aliyun.com

  • 中图分类号: P618.13

THE COMPARATIVE ANALYSIS OF DIFFERENT METHODS FOR FRACTURE PREDICTION IN COMPLEX CARBONATE ROCK RESERVOIR

  • 摘要: 围绕着复杂碳酸盐岩储层裂缝的预测方法,以普光地区嘉陵江组为例,在统计研究区裂缝发育规律的基础上,分别利用构造曲率法、纵波宽方位各向异性法和有限元法对裂缝进行预测,比较各个方法预测结果和适用条件。对比结果表明:曲率法基于几何学理论,可以定性的分析裂缝发育强度,无法预测裂缝方位,该方法适用于基础资料较少、构造简单、褶皱发育的地区;纵波宽方位各向异性法是地球物理法预测裂缝的首选方法,可以直接反映有效裂缝的方位和密度,但是该方法适用于倾斜裂缝和高角度裂缝发育区,对地震资料质量和处理要求较高;有限元数值模拟法从正演角度再现了裂缝形成过程,计算分析裂缝的发育强度和方位,该方法需要对研究区裂缝形成机理认识充分,预测结果的精度取决于模型的精细程度。

     

  • 图  1  普光地区构造纲要图

    Figure  1.  Structure outline map of Puguang area

    图  2  不同组系裂缝间距指数

    Figure  2.  The fracture spacing indexes of different sets

    图  3  普光地区薄片裂缝发育特征

    Figure  3.  The development characteristics of fractures in thin sections from Puguang area

    图  4  薄片统计不同类型裂缝开度分布图

    Figure  4.  The histogram of different types of fractures in thin section

    图  5  构造主曲率法预测裂缝原理示意图

    Figure  5.  Schematic diagram of the principle of structural principal curvature method for predicting fracture

    图  6  普光地区嘉二段最大主曲率分布图

    Figure  6.  The distribution map of maximum principal curvature in the second member of Jialingjiang Formation, Puguang area

    图  7  主曲率法计算结果同裂缝发育强度对比图

    Figure  7.  The contrast map of the calculating result by principal curvature and fracture development intensity

    图  8  纵波宽方位各向异性裂缝分析结果

    Figure  8.  The analysis result of fractures based on S-wave azimuth anisotropy

    图  9  方位各向异性分析的裂缝指数和单井裂缝发育强度关系图

    Figure  9.  The relationship map between the fracture index calculated by azimuth anisotropy and fracture development intensity in single well

    图  10  裂缝预测总破裂分布图

    Figure  10.  The distribution map of total fracture prediction

    图  11  数值模拟预测裂缝破裂率和单井裂缝发育强度关系图

    Figure  11.  The map of relationship between the fracture rates predicted by numerical simulation and fracture development intensity in single well

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  • 收稿日期:  2017-11-26
  • 修回日期:  2018-05-12
  • 刊出日期:  2018-08-01

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