发明名称 ANNULAR SEALING IN A ROTATING CONTROL DEVICE
摘要 An annular seal having a sealing member and method for use is provided for sealing an item of oilfield equipment. The annular seal has an inner diameter for receiving the item of oilfield equipment and a frame. The seal member is contiguous with the frame. The annular seal is configured for durability, in that it resists wear, inversion, increases lubricity, enables tightness, and/or otherwise generally increases endurance, toughness, and/or permanence.
申请公布号 US2014027129(A1) 申请公布日期 2014.01.30
申请号 US201213730489 申请日期 2012.12.28
申请人 WEATHERFORD/LAMB, INC. 发明人 HANNEGAN DON M.;CHAMBERS JAMES W.;JACOBS MELVIN
分类号 E21B33/068 主分类号 E21B33/068
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