A deepwater satellite field project encompasses two fields which are in the general vicinity of two existing Floating Production Storage and Offloading (FPSO) vessels. A number of development architectures that include various subsea tie-backs to two existing FPSOs and, in some cases, an additional FPSO were potential candidates for development. To accelerate the project schedule, Reservoir and Subsea, Umbilicals, Risers, and Flowlines (SURF) Engineering were conducted in parallel. In order to establish an optimal SURF architecture, a method to forecast production behavior of the various architectures is required. To achieve this objective, an Integrated Production Modeling (IPM) tool was developed. Components of this tool model reservoir material balance, well, flowline, riser, and facility performance throughout the project life. Flow assurance analysis, project planning, evaluation, and optimization are facilitated by this model. IPM achieves these objectives by enabling rapid generation of production forecasts consistent with available field information while honoring hydraulic and capacity constraints. When an optimal SURF architecture was developed, system operability was assessed by applying transient flowline and riser analysis to the production system. System operability requires that the SURF architecture is viable over a range of operating conditions spanning upside and turndown scenarios. Upon completion of the rigorous reservoir models, rate profiles were generated by reservoir simulation and compared to the range of rates used to develop the SURF architecture. The reservoir simulation rate profile was contained within the operating range used to develop the SURF architecture. Application of IPM resulted in an optimal SURF architecture, which was developed in parallel with the rigorous reservoir models. The parallel engineering effort allowed an extensive investigation of SURF architectures while accelerating the project schedule.

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