Parametric study of multicomponent mooring lines at catenary form in terms of anchoring cost

The process of anchoring FPSOs (floating production storage offloading) is one of the most important parameters in the preparation for exploitation of new oilfields in terms of capital expenditures [1] (CAPEX). Precise position and the motion control are indispensable factors for offshore platforms. Mooring passive systems are the most reliable and common devices to obtain the required position and control. Based on these principles, a methodology of quasi-static analysis of single and multi-component mooring systems in deep-water has been developed by several authors. In this work was developed a relation of the effective cost of a mooring line with minimum catenary suspended length. Proposed method was applied to know the mooring costs of a new single mooring line and compared with the mooring line of the FPSO Glen Lyon in the Schiehallion Field. Costs will be compared as well as minimum length and vessel mooring line offset.