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Theoretical Analysis and Practical Study on Reasonable Water Pressure of Hydro-fracturing

机译：水力压裂合理水压的理论分析与实践研究

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摘要

The hydro-fracturing technology is the depressurization antireflection elimination outburst technology for the low permeability outburst coal seam with high methane. At present, the mechanism of the depressurization antireflection elimination outburst is sufficiently mastered and the application effectiveness of field engineering also is well, but how to determine hydro-fracturing parameters is not systematically described, especially the reasonable water pressure. Based on the hydro-fracturing mechanism and process, the reasonable water pressure is theoretically analyzed, and then the pressure parameter of hydro-fracturing applicated in the low permeability outburst coal seam with high methane is obtained, finally the reasonable pressure formula of water injection is obtained. The application test results of field engineering shows that there is the difference between the theoretical analysis result and the pressure in field engineering test, namely, the theoretical analysis pressure is lower than the pressure in field engineering test.
机译：水力压裂技术是针对低甲烷高瓦斯突出煤层的减压减反射消除突出技术。目前，已经充分掌握了降压防反射消除机理，在现场工程中的应用效果也很好，但如何系统确定水力压裂参数的方法还不够系统，尤其是合理的水压。根据水力压裂机理和过程，对合理的水压进行了理论分析，得出了适用于高瓦斯低渗突出煤层的水力压裂参数，得出了合理的注水压力公式。获得。现场工程应用测试结果表明，理论分析结果与现场工程测试压力存在差异，即理论分析压力低于现场工程测试压力。

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