Many floating production, storage, and offloading (FPSO) vessels have run into problems due to budget overruns and schedule slippage. Part of the difficulty lies in the fact that hulls are designed and built to shipyard practice and norms, while the topsides are built to offshore industry practice, which functions differently.rnAfurther complication is that each FPSO is different due to the variety of service needs resulting from each field's varying characteristics. An off-the-shelf FPSO is therefore not feasible. Doris Engineering in Paris has approached the problem by designing a new concept for a "second-generation" style of FPSO, which can offset the high costs and schedule in various ways, including the ability to drill development wells early in a partly finished condition, while topsides assembly is completed onshore.
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