Unitized TLP anchor template with elevated well template

Details Unitized TLP anchor template with elevated well template Unitized TLP anchor template with elevated well template

1986-03-17

1987-06-02

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With anchoring of structure to marine floor

166367, 405195, E02B 1700

Patent

active

046699163

ABSTRACT:
In a Tension Leg Platform, the common practice is to locate the well and anchor templates on the sea floor. This practice results in unequal lengths for the mooring elements which extend to the base of the floating structure and the well risers which extend to a well deck level which is elevated above the base of the floating structure. As a consequence, complicated tensioning systems having an extremely long stroke may be required for the well risers. The present invention provides for a well template which is elevated above the anchor templates at a level which equalizes the lengths of the mooring elements and the well risers. The well and anchor templates are constructed in a unitary structure to facilitate installation and assure proper spacing of the templates with respect to each other. In preferred embodiments of the invention, subsea storage is provided as well as curved conductors which facilitate angular deviation of the wellbores away from the template and J-tubes for the pull-in of subsea flowlines.

REFERENCES:
patent: 3086368 (1963-04-01), Popper
patent: 3396544 (1966-11-01), Manning
patent: 3976021 (1976-08-01), Blenkarn et al.
patent: 3996755 (1976-12-01), Kalinowski
patent: 4169424 (1979-10-01), Newby et al.
patent: 4194568 (1980-03-01), Buresi et al.
patent: 4591295 (1986-05-01), Collipp

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