Abstract
In recent years, unconventional reservoirs have drawn tremendous attention worldwide. This special issue collects a series of recent works on various fractal-based approaches in unconventional reservoirs. The topics covered in this introduction include fractal characterization of pore (throat) structure and its influences on the physical properties of unconventional rocks, fractal characteristics of crack propagation in coal and fluid flow in rock fracture network under shearing, porous flow phenomena and gas adsorption mechanism, fractal geophysical method in reservoirs.
Highlights
Unconventional reservoirs include shale oil and gas, tight oil and gas, coalbed methane, and natural gas hydrate, etc
Unconventional reservoirs have drawn tremendous attention worldwide. This special issue collects a series of recent works on various fractal-based approaches in unconventional reservoirs
The topics covered in this introduction include fractal characterization of pore structure and its influences on the physical properties of unconventional rocks, fractal characteristics of crack propagation in coal and fluid flow in rock fracture network under shearing, porous flow phenomena and gas adsorption mechanism, fractal geophysical method in reservoirs
Summary
Unconventional reservoirs include shale oil and gas, tight oil and gas, coalbed methane, and natural gas hydrate, etc. Fractal geometry offers a quantitative evaluation on the heterogeneity and complexity of reservoir rocks, such as pore surface structure, pore size distribution and fracture networks, which significantly affects fluids flow and transport in these porous systems.[1,2,3,4,5,6] The fractal-based approaches have been widely and successfully used in unconventional reservoirs. This special issue emphasizes the fundamental innovations and gathers together a number of recent papers on new applications of fractal theory in unconventional reservoirs
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