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
- Patent Title: Method and apparatus for positioning a wellhead member including an overpull indicator
- Patent Title (中): 用于定位包括过度指示器的井口构件的方法和装置
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Application No.: US12913553Application Date: 2010-10-27
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Publication No.: US08689888B2Publication Date: 2014-04-08
- Inventor: Sibu Varghese , Ryan Herbel , Dien Nguyen , Javier Garcia
- Applicant: Sibu Varghese , Ryan Herbel , Dien Nguyen , Javier Garcia
- Applicant Address: US TX Houston
- Assignee: Vetco Gray Inc.
- Current Assignee: Vetco Gray Inc.
- Current Assignee Address: US TX Houston
- Agency: Bracewell & Giuliani LLP
- Main IPC: E21B33/03
- IPC: E21B33/03

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.
Public/Granted literature
- US20120103597A1 Overpull Indicator Public/Granted day:2012-05-03
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