Results of a design comparison study are presented for a production platform in 7000 ft. water depth based on ABB’s extended TLP (ETLPTM) concept. The platform has a full production and workover capability, with a facilities weight of 6500 short tons, and is designed for GOM operations. Two tendon concepts were evaluated and compared: stepped OD steel, and a Carbon Fiber Reinforced Polymer (CFRP) tendon design. Sizing studies and frequency domain global analyses were performed for both tendon concepts. Comparative displacement and tendon data are presented as a function of heave natural frequency. The effects of the design natural frequency in heave on response spectra in ultra deepwater are demonstrated.
Keywords:
frequency,
naval architect,
houston,
proceedings,
spectrum,
stiffness,
upstream oil & gas,
steel tendon,
wave spectrum,
water depth
Subjects:
Offshore Facilities and Subsea Systems
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2004. The Society of Naval Architects and Marine Engineers
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