Wellhead seals
Patent
·
OSTI ID:6688208
This patent describes an annular wellhead for sealing across an annular space between an inner wellhead member and an outer wellhead member comprising: one of the wellhead members having a sealing surface facing the other of the wellhead members, an annular metal tip having one end secured to the other of the wellhead members. The annular lip extends axially of the other wellhead member from its secured end to its opposite end which is spaced for the other wellhead member. The annular lip has a sealing surface facing the one of the members, an opening between the annular lip and the wellhead member to which it is secured facing in a direction from which pressure is received, and an annular metal seal positioned between the sealing surfaces and in sealing engagement therewith.
- Assignee:
- Cameron Iron Works, USA, Inc., Houston, TX
- Patent Number(s):
- US 4771828
- OSTI ID:
- 6688208
- Country of Publication:
- United States
- Language:
- English
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