Method of removing or positioning a substructure of an offshore platform
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 28, 2003
Grant Date -
Aug 30, 2001
app pub date -
Feb 7, 2001
filing date -
Feb 8, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The method for removing or positioning a structure (103) which is erected on either an underwater bed or anchored to the underwater bed entails the use of a hoisting mechanism. When the structure (103) is being removed, it is detached from the underwater bed. Then, the structure (103) is connected to a hoisting mechanism which is arranged on a separate hoisting vessel (100). The structure is hoisted up by the hoisting mechanism and is attached to a transport vessel (1) in such a manner that it can tilt about a horizontal axis. Then, the structure is tilted into a substantially horizontal position. The structure is positioned in the reverse order.
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