松软煤层全孔段下筛管瓦斯抽采技术与装备研究

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英文篇名：Study on Technolgy and Equipment of Full Length Screen Technology and Equipment with Gas Drainage in Soft Seam 作者：姚辉苗 ; 郭帅 ; 王成帅 英文作者：YAO Hui-miao;GUO Shuai;WANG Cheng-shuai;Shanxi Water Conservancy Career Technical College;Shenhua Shendong Shigetai Golliery;Shanxi Coal Worker Training Center; 关键词：松软煤层 ; 全孔段下筛管 ; 瓦斯抽采 ; 护孔 英文关键词：soft seam;;full length screen pipe;;soft coal seam;;retaining hole 中文刊名：MKJX 英文刊名：Coal Mine Machinery 机构：山西水利职业技术学院;神东煤炭集团石圪台煤矿;山西省煤炭职工培训中心; 出版日期：2015-10-15 出版单位：煤矿机械 年：2015 期：v.36;No.332 语种：中文; 页：MKJX201510093 页数：3 CN：10 ISSN：23-1280/TD 分类号：228-230

摘要

以潞安李村煤矿为研究对象,研发新型全孔段下筛管技术的配套设备及工艺流程,并进行了工业试验。结果表明:松软煤层全孔段下筛管技术成孔率是传统下筛管技术的2倍。该工艺可以对裸孔进行护孔,降低钻孔塌孔率,提高了下筛管效率,增加了经济效益;全孔段下筛管工艺下瓦斯浓度稳定在30.6%,是传统工艺下瓦斯浓度的2.83~2.85倍;利用全孔段下筛管工艺可以使单孔纯瓦斯流量提高近2.15~2.36倍,效果明显;松软煤层全孔段下筛管护孔瓦斯抽采效果远高于传统下筛管瓦斯抽采工艺,提高了钻孔的可靠性,保证了瓦斯的抽采效率,解放了生产力,具有良好的推广应用前景。
        To Lu'an LI vinage coal mine for the study, development of new full-bore section under screen technology, equipment and processes, and industrial test. The results showed that: screen technology into the porosity of soft seam bore section at twice the tradition of screen technology. The process can be protected against bare hole hole, reduce drilling hole collapse rate, improve the efficiency of the next screen, increase economic efficiency; full bore section next screen process gas concentrations stabilized at 30.6%, is the traditional process under the gas concentration 2.83 ~2.85times; the use of full-bore section screen technology allows a single hole pure gas flow by nearly 2.15~2.36 times, the effect is obvious; the next hole section screen soft seam gas drainage hole protection effect is far higher than conventional screens at gas pump mining technology, improving the reliability of drilling to ensure that the extraction efficiency, the liberation of the productive forces, with good promotion prospects gas.

引文

[1]牛多龙.松软低透气性煤层顺层钻孔全程套管预抽瓦斯技术[J].煤炭科学技术,2013,41(5):90-92,116.
    [2]卢平,袁亮,程桦,等.低透气性煤层群高瓦斯采煤工作面强化抽采卸压瓦斯机理及试验[J].煤炭学报,2010,35(4):580-585.
    [3]谢生荣,武华太,赵耀江,等.高瓦斯煤层群“煤与瓦斯共采”技术研究[J].采矿与安全工程学报,2009,26(2):173-178.
    [4]宋维宾,孙玉宁,王永龙,等.松软突出煤层沿顶钻进提高钻进深度方法研究[J].煤炭科学技术,2014,42(5):34-36,40.
    [5]付建华,程远平.中国煤矿煤与瓦斯突出现状及防治对策[J].采矿与安全工程学报,2007(3):253-259.
    [6]王永龙,孙玉宁,翟新献,等.松软突出煤层新型钻进技术研究[J].采矿与安全工程学报,2012,29(2):289-294.
    [7]孙新胜,王力,方有向,等.松软煤层筛管护孔瓦斯抽采技术与装备[J].煤炭科学技术,2013,41(3):74-76.
    [8]张付现.松软低透气性煤层全孔段筛管下放技术研究[J].煤,2014,23(10):13-15,76.