Caisson wellhead system and method of installing the same

Details Caisson wellhead system and method of installing the same Caisson wellhead system and method of installing the same

1998-07-29

2000-08-15

Lillis, Eileen Dunn

Hydraulic and earth engineering

Marine structure or fabrication thereof

Structure protection

405211, 285 2, 285 4, 166364, 166365, F16L 2916, F16L 3100

Patent

active

061026263

ABSTRACT:
A caisson wellhead system having a weak point wherein the wellhead system may be installed in a well as a single unit. The caisson wellhead system of the invention includes a lower tubular member having an upper rim. A lower rim of an upper tubular member is placed on the upper end of the lower tubular member. A removable connector is installed inside of and between the lower tubular member and upper tubular member for temporarily connecting the upper tubular member and the lower tubular member. A weak point is formed at the interface between the lower tubular member and the upper tubular member when the removable connector is removed. Therefore, the caisson wellhead system will break at a controlled location if any external components of the well equipment are struck by a foreign object such as an iceberg.

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Insert tree completion system presentation; K.W. Brands; Apr. 1980.
The Insert Tree Completion System presentation; Klaas W. Brands; May 1981.
Insert Tree Completion System paper; Klaas W. Brands; Sep. 1982.
Cameron Caisson Completion System brochure; no date.

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