RESPONSES OF CLASSIC SPAR PLATFORM SUBJECTED TO REGULAR WAVES

Increasing demand for Oil and Gas and decreasing onshore reserves has lead to Deep
water exploration therefore it has accelerated the need to explore structures suitable
for these depths, which operate more economically in deep water. A Spar platform is
one such compliant offshore floating structure used for deep water applications for
the drilling, production, processing, storage, and oftloading of ocean deposits. The
Spar platform was modelled as a rigid body with six degrees-of freedom, connected
to the sea floor by multi-component catenary mooring lines, which are attached to the
Spar platform at the fairleads. The aim of this project was to conduct a simple
dynamic rigid body analysis in time domain for a typical classic spar subjected to
regular waves and then conduct a parametric analysis. The results obtained are within
the permissible limits where the maximum Surge, Heave, & Pitch recorded were 1.2
m, 0.95 m, and -0.04 rad respectively for wave height of3.6 m and wave period of7
sec.
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