超深涌水水平孔绳索取心 钻具投送和打捞技术
投稿时间:2021-03-12  修订日期:2021-08-21  点此下载全文
引用本文:
摘要点击次数: 72
全文下载次数: 0
作者单位邮编
石绍云 中国地质科学院探矿工艺研究所 611734
李 杰 四川省水利规划研究院 611731
罗显粱 中国地质科学院探矿工艺研究所 
吴金生 中国地质科学院探矿工艺研究所 
黄晓林 中国地质科学院探矿工艺研究所 
唐治建 中国地质科学院探矿工艺研究所 
基金项目:中国地质调查局地质调查项目“怒江流域泸水-芒市段灾害地质调查”(编号:DD20190643) ,
中文摘要:为了精准查明拟建隧道沿线地质情况,通常采用水平孔绳索取心钻探技术。在超深涌水水平孔绳索取心钻进中,投放内管总成钻具和打捞器成了施工中的难题。由此从研制专用水平钻机,选择大功率泥浆泵,封隔分流涌水,设计绳索钻具送绳器,定制专用内平绳索取心钻杆等几方面开展研究。全面分析了泥浆泵压力、钻杆内径大小、钻孔深度、钻杆的密封性、钻孔涌水量、涌水压力、孔壁间隙等因素对投送内管总成钻具和打捞器速度的影响,实现了高效、低成本、绿色钻探技术集成。经过精心组织,成功完成了千米级的大涌水水平孔绳索取心施工,精准查明了隧道洞身段工程地质条件,取得了满意的技术效果,为隧道设计和施工提供了安全保障,也为超深涌水水平孔钻探提供了经验。
中文关键词:涌水水平孔  绳索取心钻进  投放钻具  打捞钻具  送绳器
 
Throwing and salvaging technology of ultra-deep water gushing horizontal hole rope coring tool
Abstract:In order to accurately find out the geological conditions along the tunnel, horizontal hole rope coring drilling technology is usually used; However, it is a difficult problem to throw in drilling tools and fishing tools in the rope coring drilling of ultra-deep water gushing horizontal holes. We carry out research from several aspects, such as developing special horizontal drilling rig, selecting high-power mud pump, sealing and restraining water gushing, designing rope feeder of rope drilling tool, developing and processing special inner horizontal rope coring drill pipe, etc. The influence of factors such as mud pump pressure, drill pipe inner diameter size, drilling depth, drill pipe tightness, drilling water gushing, water gushing pressure, hole wall clearance and other factors on the speed of conveying drilling tools and fishing gear are comprehensively analyzed. After careful organization, successfully completed the construction task of rope coring with a large gushing water horizontal hole of the kilometer level, and the rapid drilling technology with high efficiency, low cost and green drilling was realized, which achieved satisfactory technical results, accurately identified the engineering geological conditions of tunnel body section, provided safety guarantee for tunnel design and construction, and also provided valuable experience for drilling horizontal hole with ultra-deep water gushing.
keywords:Water gushing horizontal hole  wire line core drilling  convey drilling tool  Fishing tool  Rope feeder
  查看/发表评论  下载PDF阅读器