Abstract

This paper details the rational floatover analysis method and its application in the successful floatover installation of the LW3-1 CPP Topsides. The main purpose of the floatover analyses is to determine the design loads and operability for each stage during docking, mating, and undocking operations. The findings of the parametric sensitivity studies ensure the integrity of the mega topsides and the preinstalled jacket, as well as the T-shaped barge, and therefore enable the challenging floatover installation as rapidly as possible coincident with safe practice in the deep water and harsh environment of South China Sea.

Keywords:
floatover installation, mooring system, topsides, jacket leg, force coefficient, stiffness, operation, subsea system, barge, local coordinate system
Subjects:
Offshore Facilities and Subsea Systems, Mooring systems
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2014. International Society of Offshore and Polar Engineers
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