Wellhead supported subsea templates and methods
A method of installing a wellhead supported subsea template adjacent to the floor of a body of water is described comprising the steps of: positioning the template on an existing wellhead whereby the template is supported thereby adjacent to and above the floor of the body of water; and causing the template to engage the wellhead so that the template is prevented from rotating relative to the wellhead by embedding at least one blade member attached within a central support member of the template into an upper portion of the wellhead when the central support member is contacted therewith. A method of installing a wellhead supported subsea template having a central support member adjacent to the floor of a body of water is also described comprising the steps of: positioning the template on an existing wellhead whereby the template is supported thereby adjacent to and above the floor of the body of water; and lowering the template onto the wellhead and slidably moving an inner sleeve upwardly within a central bore of the central support member thereby causing engagement tongs pivotally mounted to the inner sleeve to close about the outer surface of the wellhead.
- Assignee:
- Amoco Corp., Chicago, IL
- Patent Number(s):
- US 4706757
- OSTI ID:
- 5905083
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
EQUIPMENT
INSTALLATION
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
POSITIONING
SEA BED
SUPPORTS
WELL COMPLETION
WELLHEADS
WELLS