探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2014年
11期
28-30,56
,共4页
松软低透气性煤层%瓦斯抽采%跟管钻进%水力压裂
鬆軟低透氣性煤層%瓦斯抽採%跟管鑽進%水力壓裂
송연저투기성매층%와사추채%근관찬진%수력압렬
soft and low permeability coal seams%gas drainage%casing while drilling%hydraulic fracturing
针对我国松软低透气性煤层瓦斯抽采难题，提出了采用跟管钻进和水力压裂技术提高松软煤层钻孔深度和煤层透气性，通过布孔设计、应力分析论证了该方法的施工可行性，讨论了该方法的施工步骤。该技术有望成为解决松软低透气性煤层瓦斯抽采难题的新工艺方法。
針對我國鬆軟低透氣性煤層瓦斯抽採難題，提齣瞭採用跟管鑽進和水力壓裂技術提高鬆軟煤層鑽孔深度和煤層透氣性，通過佈孔設計、應力分析論證瞭該方法的施工可行性，討論瞭該方法的施工步驟。該技術有望成為解決鬆軟低透氣性煤層瓦斯抽採難題的新工藝方法。
침대아국송연저투기성매층와사추채난제，제출료채용근관찬진화수력압렬기술제고송연매층찬공심도화매층투기성，통과포공설계、응력분석론증료해방법적시공가행성，토론료해방법적시공보취。해기술유망성위해결송연저투기성매층와사추채난제적신공예방법。
In order to improve the drilling depth and the permeability of soft and low permeability coal seams, a new tech-nique including underground casing-while-drilling and horizontal hydraulic fracturing is proposed.The paper discusses the feasibility and execution steps of this technology based on the borehole design and stress analysis.It is possible that this technique becomes a new technology to solve the gas drainage difficulties in soft and low permeability coal seams.
