INTELLIGENT EXTRACTION OF COMPLEXITY TYPES IN FRACTAL RESERVOIR AND ITS SIGNIFICANCE TO ESTIMATE TRANSPORT PROPERTY

Yi Jin, Ben Zhao, Yunhang Yang, Jiabin Dong, Huibo Song, Yunqing Tian and Jienan Pan
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Yi Jin: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China†Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, P. R. China‡Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic, Region, Jiaozuo 454003, P. R. China
Ben Zhao: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China
Yunhang Yang: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China†Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, P. R. China
Jiabin Dong: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China
Huibo Song: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China
Yunqing Tian: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China
Jienan Pan: School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, P. R. China†Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, P. R. China‡Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic, Region, Jiaozuo 454003, P. R. China

FRACTALS (fractals), 2024, vol. 32, issue 03, 1-15

Abstract: Fractal pore structure exists widely in natural reservoir and dominates its transport property. For that, more and more effort is devoted to investigate the control mechanism on mass transfer in such a complex and multi-scale system. Apparently, effective characterization of the fractal structure is of fundamental importance. Although the newly emerged concept of complexity assembly clarified the complexity types and their assembly mechanism in a fractal system, equivalent extraction of the complexity types is the key for effective characterization. For these, we proposed a deep learning-based method to extract the original and behavioral complexity assembled in bed-packing fractal porous media for simplification and without loss of generality. In detail, the UNeXt network model was trained to obtain the independent connected regions of scaling objects with different scales, the edge detection and clustering analysis algorithms were employed to extract the number-size relationship between two successive scaling objects, and the unique inversion of fractal behavior was realized by taking the number-size model and fractal topography together. Consequently, an equivalent characterization method for fractal complex pore structure was developed based on the concept of complexity assembly. Our investigation provides a theoretical guidance and method reference for the quantitative characterization of fractal porous media that will guarantee the fundamental requirement for the accurate evaluation of the transport properties of natural reservoir.

Keywords: UNeXt Network; Unconventional Reservoirs; Fractal Porous Media; Complexity Assembly; Fractal Topography Theory (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0218348X24500701

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