Blowout preventer testing apparatus
Patent
·
OSTI ID:7081146
This patent describes a wellhead structure for pressure testing a blowout preventer secured to the upper portion of a wellhead housing which has an internal landing seat and an internal load supporting groove above the landing seat. It comprises a hanger having an external landing shoulder landed within the housing on the internal housing landing seat; seal means for sealing between the exterior of the hanger rim and the interior of the housing; a closure member having a tubular body; means for closing the flow through the interior of the tubular closure member body; a downwardly facing exterior load shoulder on the closure member body; a split support ring surrounding the closure member body; and a sleeve surrounding the closure member body. The movement of the sleeve within the split support ring being responsive to testing pressure between the blowout preventer and the closure member.
- Assignee:
- Cameron Iron Works USA, Inc., Houston, TX
- Patent Number(s):
- US 4862960
- Application Number:
- PPN: US 7244787A
- OSTI ID:
- 7081146
- Country of Publication:
- United States
- Language:
- English
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