The concept of coke based proppants for coal bed fracturing

Mining of Sustainable Development

生态环境科学

Labus, K.^1 ; Morga, R.^1 ; Suponik, T.^1 ; Maslowski, M.^2 ; Wilk, K.^2 ; Kasza, P.^2

Silesian University of Technology, Faculty of Mining and Geology, 2 Akademicka Street, Gliwice

44-100, Poland^1

Oil and Gas Institute, National Research Institute, 25A Lubicz St., Kraków

31-503, Poland^2

关键词: Coal formation;    Flow resistance;    Fracturing operations;    Low viscosity;    Methane extraction;    Partial penetration;    Stimulation treatments;    Water consumption;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/261/1/012026/pdf
DOI  :  10.1088/1755-1315/261/1/012026

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The concept of a new type of coke-based proppant for hydraulic fracturing of coal seams for coalbed methane extraction is introduced. Our solution will facilitate gas inflow into the well due to the fact that the proppants will be resistant to embedment into the coal formation, and gas flow through porous coke grains will be possible even in the case of their partial penetration into the coal rock. Low density of the material will enable suspending the proppant particles in low viscosity frac fluids, which in turn will allow for: Decreased flow resistance, minimizing water consumption and better well cleaning. Coke based proppants will allow to increase the performance of hydraulic fracturing operations in coal seams, resulting in improved efficiency of obtaining coalbed methane. The new product will be presumably suitable for stimulation treatments in other, soft rocks or even allow hydrocarbon exploitation from the formations that were previously considered as unproductive.