发明名称 Combination well pipe centralizer and overpull indicator
摘要 <p>A subsea wellhead assembly includes an outer wellhead member with a bore containing at least one conical generally upward facing load shoulder that inclines relative to an axis of the bore. The outer wellhead member also contains an overpull recess having a generally downward facing overpull shoulder positioned below the at least one generally upward facing load shoulder. An inner wellhead member is lowered into the housing, the inner wellhead member having at least one conical downward facing load shoulder that inclines relative to an axis of the bore. A load ring has an inner profile that slidingly engages the downward facing load shoulder and an outer profile that slidingly engages the upward facing load shoulder.</p>
申请公布号 GB2475408(B) 申请公布日期 2014.05.14
申请号 GB20100019090 申请日期 2010.11.11
申请人 VETCO GRAY INC 发明人 NICHOLAS P GETTE
分类号 E21B17/10 主分类号 E21B17/10
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