瓦斯精细化治理与多源协同抽采技术的应用研究

Application research of the technology of gas fine control and multi-source cooperative extraction

为从宏观管理层面调控瓦斯灾害治理过程中的复杂环节,实现时空协同精准化的瓦斯综合治理的目标,基于精细化管理理论与协同化治理原则,构建了瓦斯精细—协同治理模型,形成了以瓦斯基本参数及赋存规律、工作面瓦斯协同化预抽、工作面瓦斯协同化治理、抽采效果综合评价四大部分为主的瓦斯精细—协同治理体系。根据石泉煤业30103工作面瓦斯赋存基本情况,提出“预抽强化技术+高压水致裂技术+高位钻孔抽采技术”的瓦斯精细—协同治理技术方案,实践表明,该技术有效降低了回采过程中工作面及上隅角瓦斯浓度,有效提高了瓦斯抽采效率,达到了“降本增效”的目的。

In order to control the complex links in the process of gas disaster management from the macro management level,and achieve the goal of comprehensive gas management that can accurately coordinate time and space,based on the theory of refined management and the principle of collaborative management,a fine-collaborative gas management model was constructed.A fine-coordinated gas management system has been formed with four main parts,including basic parameters and occurrence rules of gas,collaborative pre-drainage of gas in working face,collaborative treatment of gas in working face,and comprehensive evaluation of extraction effect.According to the basic situation of gas occurrence in 30103 working face of Shiquan Coal Industry,the technical plan of fine-collaborative gas treatment of “pre-drainage strengthening technology+high-pressure water fracturing technology+high-level drilling and extraction technology” was proposed.The practice shows that the technology effectively reduces the gas concentration in the working face and upper corner during the mining process,effectively improves the gas extraction efficiency,and achieves the purpose of “cost reduction and efficiency increase”.