发明名称 Rotating diverter head
摘要 A rotating diverter head for use on a blow out preventer stack of an oil, gas or geothermal well. While providing for sealing and rotation of a drill pipe through the head, the head additional includes a flange on which the head is rotatable. The flange connects the head to the stack whereupon it can be rotated to align a return flow line before being locked in position.
申请公布号 US7308954(B2) 申请公布日期 2007.12.18
申请号 US20050516489 申请日期 2005.01.07
申请人 STACEY OIL SERVICES, LTD. 发明人 MARTIN-MARSHALL PETER STEWART
分类号 E21B21/00;E21B21/06;E21B33/08 主分类号 E21B21/00
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