The Damage Mechanics Model of the Wellbore Surrounding Rock Based on Fractal Theory

Rui Xiang Shi; Chi Ai; Wan Chun Zhao; Xiao Han Feng

doi:10.4028/www.scientific.net/AMM.423-426.1623

Paper Titles

Dynamic Properties of Machine Bolted Joints Summary
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Experimental Study on the Performance of the Laminated Steel Isolators
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Modeling and Simulation of Horizontal Single Head Screw Conveyor with Different Fill Levels and Rotational Speed Based on EDEM
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An Application of the Maximum Shear Strain Increment in Searching Sliding Surfaces
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The Damage Mechanics Model of the Wellbore Surrounding Rock Based on Fractal Theory
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Boundary Element Method for Crack Analysis in Two-Dimension Anisotropic Solid
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The Influence Area of a Supersonically Expanding Spherical Inclusion
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Mechanical Component Reliability Calculation through Multi-Plane Combination Method
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The Scattering Waves by Two Spheres in Solid
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426The Damage Mechanics Model of the Wellbore...

The Damage Mechanics Model of the Wellbore Surrounding Rock Based on Fractal Theory

Abstract:

In order to describe the mechanical characteristics of CBM wellbore surrounding rock more accurately, the article establishes the CBM wellbore surrounding rock mechanics model based on the fractal theory. According to the pores of CBM surrounding rock and the characteristics of mass fractal, people find the macro fracture and micro fracture damage characteristics and build the relationship of any scale coal strength, damage variable and fractal dimension. According to the numerical calculation method of the surrounding rock stress, people find the surrounding rock stress calculation method and the damage distribution model of the pore fractal model and fracture fractal model.

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

Pages:

1623-1626

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.1623

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Online since:

September 2013

Authors:

Rui Xiang Shi*, Chi Ai, Wan Chun Zhao, Xiao Han Feng

Keywords:

CBM, Damage Mechanics, Fractal, Stress Field

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References

[1] Xuchao Yan. The development and utilization status of foreign coal bed methane and its technical level [J]. Oil Forum, 2007, 26(6).

Google Scholar

[2] Ping Qu, Ruichen Shen. The determination of borehole wall stability mechanism and drilling fluid density window in coal bed methane drilling [J]. Natural gas industry, 2010, (10).

Google Scholar

[3] S. Diamond, Aspects of concrete porosity revisited, Cement and Concrete Research. 2009(1): 1181-1188.

DOI: 10.1016/s0008-8846(99)00122-2

Google Scholar

[4] Busch A, Gensterblum Y, Krooss B M, et a1. Methane and carbon dioxide dsorptio-difusion experiments on coal: upsealing and modeling [J]. International Journal of Coal Geology, 2004, 41: 151-168.

DOI: 10.1016/j.coal.2004.05.002

Google Scholar

[5] Hyunil Jo. Optimizing Fracture spacing to Induce Complex Fractures in a Hydraulically Fractured Horizontal Wellbore. SPE154930-MS. (2012).

DOI: 10.2118/154930-ms

Google Scholar