Underwater wellhead connector
The invention pertains to apparatus for connecting to a wellhead structure. Lower and upper female bodies define first and second receptacles disposed generally in coaxially aligned, end-to-end, communicative relation. A male body is received in both receptacles. The male body and upper female body have respective sets of inductive electric couplers matched in one-to-one relation. Several features facilitate effective use of such couplers: the couplers themselves have the edges of their heads chamfered from a point located just outwardly of the O.D's of their cores; an improved mounting arrangement aligns the two female bodies in stacked relation without the lower female body interfering with proper seating of the male body in the upper female body; an improved compensator system enhances play of one female body for precise centering with the other.
- Assignee:
- NL Industries, Inc.
- Patent Number(s):
- US 4411454
- OSTI ID:
- 5271895
- Resource Relation:
- Patent File Date: Filed date 3 Nov 1980; Other Information: PAT-APPL-202942
- Country of Publication:
- United States
- Language:
- English
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