瓦斯抽采“两堵一注一排”新工艺技术

doi:10.16265/j.cnki.issn1003-3033.2018.08.017

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (8): 100-104.doi: 10.16265/j.cnki.issn1003-3033.2018.08.017

瓦斯抽采“两堵一注一排”新工艺技术

齐庆杰¹ 教授, 赵尤信^**1, 吕有厂², 贾新雷¹, 周新华¹ 副教授

1 辽宁工程技术大学安全科学与工程学院,辽宁阜新 123000;
2 炼焦煤资源开发及综合利用国家重点实验室,河南平顶山 467000

收稿日期:2018-05-07 修回日期:2018-07-15 出版日期:2018-08-28 发布日期:2020-11-25
通讯作者: **赵尤信(1989—),男,山东临沂人,博士研究生,主要研究方向为矿井火灾防治。E-mail:553663095@qq.com。
作者简介:齐庆杰(1964—),男,辽宁朝阳人,博士,教授,博士生导师,主要从事矿井灾害防治、大气污染防治和洁净煤燃烧技术等研究。E-mail:qi_qingjie@163.com。
基金资助:
国家自然科学基金资助 (51704147);辽宁省教育厅科学研究一般项目(LJYL005)。

Study on new technology of " two plugging, one injection and one discharge "

QI Qingjie¹, ZHAO Youxin¹, LYU Youchang², JIA Xinlei¹, ZHOU Xinhua¹

1 College of Safety Science and Engineering,Liaoning Technical University,Fuxin Liaoning 123000,China;
2 State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization,Pingdingshan Henan 467000,China

Received:2018-05-07 Revised:2018-07-15 Online:2018-08-28 Published:2020-11-25

摘要/Abstract

摘要： 为提高瓦斯抽采钻孔的抽采浓度,实现煤矿瓦斯回收利用,针对现有的“一体式囊袋两堵一注”封孔器漏气问题,对其工艺进行改进,设计出“两堵一注一排”封孔装置,并进行井上试验研究和井下工程试验,对比分析2种封孔器的抽采效果。结果显示:井上试验“两堵一注一排”新工艺注浆段密实,“一体式囊袋两堵一注”出现明显的空白段;井下在相同煤层条件下,“两堵一注一排”新工艺抽采90天平均瓦斯体积分数为75%,“一体式囊袋两堵一注”抽采瓦斯体积分数为55%。

关键词: 两堵一注一排, 瓦斯抽采, 注浆封孔, 一体式囊袋两堵一注, 抽采效果

Abstract: For the sake of increasing the extraction concentration of gas extraction drilling and achieving gas recovery and utilization of coal mine,the paper was aimed at improving the existing process of "one-piece bladder double plugging and one injection" plugging process.A new type of "two plugging,one injection and one discharge" was sealing device designed and made.Laboratory researches and downhole engineering experiments were conducted to compare and analyze the effects of the two types of plugging devices.The results show that the grouting section of the "two plugging,one injection and one discharge" new process in the in-hole experiment is dense,but there is an obvious blank section in the" integrated pouch double plugging and single injection",that under the same coal seam condition,the average gas volume fraction is 75% in 90 days with the new process of "two plugging,one injection and one discharge",but the volume fraction is 55% with the existing process.

Key words: two plugging, one injection and one discharge, gas extraction, grouting hole sealing, integrated pouch double plugging and single injection, extraction effects

中图分类号:

X936

齐庆杰, 赵尤信, 吕有厂, 贾新雷, 周新华. 瓦斯抽采“两堵一注一排”新工艺技术[J]. 中国安全科学学报, 2018, 28(8): 100-104.

QI Qingjie, ZHAO Youxin, LYU Youchang, JIA Xinlei, ZHOU Xinhua. Study on new technology of " two plugging, one injection and one discharge "[J]. China Safety Science Journal, 2018, 28(8): 100-104.

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瓦斯抽采“两堵一注一排”新工艺技术

Study on new technology of " two plugging, one injection and one discharge "

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