发明名称 BIG GAP ELEMENT SEALING SYSTEM
摘要 <p>An element sealing system includes a packing element including a groove in a surface thereof, the packing element adapted to form a double hump configuration upon compression, and a first ring member disposed a first end of the packing element. A second ring member is disposed at a second end of the packing element, a first seal ring is disposed laterally outward of the first ring member, and a second seal ring is disposed laterally outward of the second ring member. A first inner backup ring is disposed laterally outward of the first seal ring. The first inner back-up ring includes slots. A first outer back-up ring is disposed adjacent the first inner back-up ring and includes slots, wherein that slots in the first outer back-up ring are offset from the slots in the first inner back-up ring.</p>
申请公布号 CA2904531(A1) 申请公布日期 2014.10.02
申请号 CA20142904531 申请日期 2014.03.28
申请人 WEATHERFORD/LAMB, INC. 发明人 NGUYEN, THOM;TURLEY, ROCKY
分类号 E21B33/12;E21B33/16;E21B43/10 主分类号 E21B33/12
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