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2. 发明申请

WO2009055412A2 DRILL-STRING SHOCK ABSORBERS 审中-公开
标题翻译：钻柱式减震器
公开(公告)号：WO2009055412A2
公开(公告)日：2009-04-30
申请号：PCT/US2008/080692
申请日：2008-10-22
申请人： LONGYEAR TM, INC. , HARTUNG, Markus , WREDE, Stefan , KRUSE, Christof
发明人： HARTUNG, Markus , WREDE, Stefan , KRUSE, Christof
IPC分类号： E21B17/07
CPC分类号： E21B17/07
摘要： Implementations of the present invention relate generally to methods, systems, and apparatus for absorbing vibration and shock impulses created during drilling operations. In particular, implementations of the present invention include drill-string shock absorbers adapted to absorb longitudinal forces produced during a drilling operation. For example, drill-string shock absorbers in accordance with at least one implementation of the present invention include a generally cylindrical housing having a first end and a second end coupled together by a radially interlocking joint. Such a configuration can reduce mechanical failure and increase the operating life of the shock absorber by transmitting torsional forces directly between the ends of the housing and reducing stresses from being transferred to fastening means securing the first and second ends of the cylindrical housing together.
摘要翻译：本发明的实施方式总体上涉及用于吸收在钻探操作期间产生的振动和冲击脉冲的方法，系统和设备。特别地，本发明的实施方式包括适于吸收在钻井作业期间产生的纵向力的钻柱减震器。例如，根据本发明的至少一个实施方式的钻柱减震器包括大致圆柱形的壳体，该壳体具有通过径向互锁接头联接在一起的第一端部和第二端部。这种构造可通过在壳体的端部之间直接传递扭转力并减少传递到将圆柱形壳体的第一端和第二端固定在一起的紧固装置上的应力而减少机械故障并延长减震器的使用寿命。 p>

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