高地应力下护孔钻进用套管的研制

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英文篇名：Development of Casing for Casing Drilling under High Ground Stress 作者：郭昆明 英文作者：Guo Kunming;Chongqing Research Institute,China Coal Technology and Engineering Group;State Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling; 关键词：高地应力 ; 煤层塌孔 ; 结构设计 ; 有限元分析 ; 性能试验 英文关键词：high ground stress;;coal seam collapse;;structural design;;finite element analysis;;performance test 中文刊名：MKJX 英文刊名：Coal Mine Machinery 机构：中煤科工集团重庆研究院有限公司;瓦斯灾害监控与应急技术国家重点实验室; 出版日期：2019-05-15 出版单位：煤矿机械 年：2019 期：v.40;No.375 基金：“十三五”国家科技重大专项任务(2016ZX05045001-007);; 重庆市科技创新领军人才支持计划(CSTCCXLJRC201709) 语种：中文; 页：MKJX201905019 页数：3 CN：05 ISSN：23-1280/TD 分类号：63-65

摘要

针对高地应力条件下煤层塌孔严重套管无法下入的难题,介绍了一种钻护一体化工艺技术,设计了新型专用套管,确定了其结构及相应参数,进行了有限元分析,并通过工业性试验,验证了新型护孔钻进专用套管的整体稳定性,满足施工要求。
        Aiming at the problem that the casing of the coal seam can not be driven down under high ground stress conditions,a technology of integrated drilling and protection technology was introduced. A new type of special casing was designed,its structure and corresponding parameters were determined,and finite element analysis was carried out. And through industrial tests,the overall stability of the new special casing for drilling has been verified to meet the requirements.

引文

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