Integrated production modeling allows comparison of subsea and conventional lift technologies ///

Reservoir engineers are responsible for forecasting the future reservoir behavior. With the technological evolution of hardware and software in the past decades, reservoir simulation has become an important tool for engineers, since it incorporates information from geology, geophysics and engineering, allowing more complexity to the model. Current simulators also estimate production system pressure drops through the use of Vertical Lift Performance tables (VLPTs). An example is shown in Fig. 1, where the production system is represented by four VLPTs. However, this approach has some limitations: the thermal calculation is normally not considered; not all the field operational constraints are monitored; complex production systems cannot be represented by some commercial simulators; and for a single modification, it is necessary to generate a new VLPT.

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