“炮弹”式打捞器在处理断钻事故中的应用

Application of “Shell” Shaped Fisher in Drill Pipe Breaking Accidents

摘要:

山东省莱州市纱岭矿区地层类型较多、岩矿层破碎、结构复杂，小口径金刚石钻探施工中常出现断钻杆事故。在进行了调查研究和分析的基础上，研制了“炮弹”式打捞器，并将其应用在钻杆、套管折断事故处理中，提高了事故处理的效率和效果。简述了“炮弹”式打捞器的工作原理和使用注意事项，指出了存在的问题和局限性。

Abstract:

Because of the variety of stratigraphic types, broken rock mass formation and complex geological structure in Shaling goldfields of Laizhou, drill pipe breaking often occurs in small diamond drilling construction. Based on the investigation and analysis, a “shell” shaped fisher was developed, which is used for drill pipe or casing breaking accidents, the efficiency and effect of accident treatment are highly improved. The working principle and attentions in use are outlined in this paper and the existing problems and limitations are also pointed out.