Invention Grant
US08689888B2 Method and apparatus for positioning a wellhead member including an overpull indicator 有权
用于定位包括过度指示器的井口构件的方法和装置

Method and apparatus for positioning a wellhead member including an overpull indicator
Abstract:
An outer wellhead member has a bore with a first profile portion and an annular recess. A tubular inner wellhead member with a centralizer/overpull ring is lowered into the outer wellhead member. The centralizer/overpull ring is biased to expand outward to engage the bore of the outer wellhead member to center the inner wellhead member within the bore as the inner wellhead member is lowered through the bore. The recess of the outer wellhead member is adapted to receive the centralizer/overpull ring and oppose axial movement of the centralizer/overpull ring to enable an upward test pull of the inner wellhead member.
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