发明名称 RISER RESONANCE PREVENTION DEVICE
摘要 The invention relates to a device for suspending a tubular (13) from a floating vessel, the device having at least one compression element (11) which is pre-tensioned in an end stroke position such that when subjected to a tubular force below a pre-defined threshold force, the at least one compression element forms a rigid hang-off for the tubular, and when subject to a force higher than the threshold force the device forms a compressible hang-off for the tubular.
申请公布号 NO20150589(A1) 申请公布日期 2016.11.14
申请号 NO20150000589 申请日期 2015.05.13
申请人 MHWIRTH AS 发明人 TVETER ØYVIND;SÆVELAND ØYSTEIN
分类号 E21B19/09 主分类号 E21B19/09
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