会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • IMPROVED COMPOSITE DRILL PIPE
    • 改进的复合钻管
    • EP1019650B1
    • 2005-03-16
    • EP98960150.5
    • 1998-09-30
    • Grant Prideco, L.P.
    • WOLTERMAN, Daniel, J.
    • F16L33/00
    • E21B17/00Y10T29/49826
    • A composite drill pipe (200) has an improved means of attaching a metal end fitting (211) to a composite tubular member (212) using corresponding annular grooves (230, 231) in the metal end fitting (211) and the composite tubular member (212). In addition to annular grooves for axial loads, a plurality of axial grooves (210) can also be included to accommodate greater torsional loads. The composite pipe body (200) can also include a buildup (220) made of a compliant rubber layer (221), a composite overwrap (225), and a wear pad (222) in order to reduce the effective buckling node spacing to even further increase the axial load capability.
    • 复合钻杆(200)具有改进的使用金属端部配件(211)中的相应环形凹槽(230,231)将金属端部配件(211)附接到复合管状部件(212)的装置,复合管状部件 (212)。 除了用于轴向载荷的环形凹槽之外,还可以包括多个轴向凹槽(210)以适应更大的扭转载荷。 复合管体(200)还可以包括由柔性橡胶层(221),复合外包装(225)和耐磨垫(222)制成的堆积物(220),以便将有效屈曲节点间距减小到均匀 进一步增加轴向负载能力。