The use of bouyancy to lift heavy objects from the sea
Authors
Fiske, Richard P.
Subjects
Buoyancy lifting
Advisors
Chryssostomides, Chryssostomos
Date of Issue
1981-06
Date
June 1981
Publisher
Cambridge, Massachusetts; Massachusetts Institute of Technology
Language
en_US
Abstract
To recover oil from economically marginal offshore fields the re-use of production platforms has been considered. Re-use involves severing the jacket from the seabed, rotating the jacket to the horizontal and lifting it through the air/sea interface in a configuration suitable for towing. Five systems are considered for use in the recovery process. Two systems currently used for installation are found suitable for modification to recover jackets. They are the pontoon barge system and the self-floating tower. Major problems to be overcome in modifying for retraction are mating of the pontoon barge with the tower, developing a pile system which can be refurbished, and ensuring transverse stability on retraction through the air/sea interface.
Type
Thesis
Description
Series/Report No
Department
Ocean Engineering
Organization
Massachusetts Institute of Technology
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.