| Experimental Study on the Feasibility of Methane Drainage in Coal Seams with Compound Technique of Perforating and Fracturing |
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| 作者姓名： | Luo Yong~ Shen Zhaowu~ |
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| 作者单位： | 1Guangdong Handar Blasting Engineering Co. Ltd.，Guangzhou 510055;2University of Science and Technology of China，Hefei 230027 |
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| 摘 要： | 1IntroductionGas disasters are the most main hidden dangersof coal mines,actually the ultimate means ofproblem-solvingis pre-drainage.The permeabilitycoefficient of coal seamis the parameter whichjudges the degree of difficulty or easiness of themethane flows in coal seams,which is provedright in theory and in practice.During drainingmethane,the drainage effects of coal seams,whose pressure are not relived,are mainly dependonthe permeability coefficients1].At the presenttime,one of the key pr…
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Experimental Study on the Feasibility of Methane Drainage in Coal Seams with Compound Technique of Perforating and Fracturing |
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| Luo Yong,Shen Zhaowu.Experimental Study on the Feasibility of Methane Drainage in Coal Seams with Compound Technique of Perforating and Fracturing[J].Engineering Sciences,2007,5(1). |
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| Authors: | Luo Yong Shen Zhaowu |
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| Abstract: | Compound technique of perforating and fracturing can effectively control the perforating direction and the fracturing expansion. The feasibility of this technique used in fracturing coal seams is analyzed. In this paper, the experiments of perforating and fracturing are carried out on samples of coal and the experimental effects are satisfactory. Compound technique of perforating and fracturing is promising in coal seams. |
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| Keywords: | compound technique of perforating and fracturing coal seams fracturing HEGF |
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