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A methodology is proposed for production optimization of oilfields consisting of multiple offshore reservoirs. In such complex systems, several production units are interconnected by a subsea pipeline network that transfers fluids to onshore terminals. A graph-based model of production units, pipelines, and nonlinear phenomena leads to a mixed-integer nonlinear problem for production optimization...
In this paper, we consider the Buckley-Leverett model for space-dimensional problems of two-phase filtration of incompressible fluids based on gravity and without capillary forces. An advanced modified alternating triangular iterative method (MATM) that takes into account the availability of sources (sinks) in a relatively small number of nodes characterised by generalised delta-shaped functions is...
In order to develop the Pre-Salt reservoirs located in the Santos Basin off Brazil, Petrobras is drilling very deep subsea wells, which means that the casing strings deployed in the Pre-Salt wells are much longer and heavier compared to subsea wells from other offshore provinces. A casing string is installed and cemented into well to give stability to wellbore and avoid any leakage from or into the...
The major contribution of this work is a provision of available tool to study the dimensionless variables for hydraulically fractured wells producing from a reservoir of inverted nine spot pattern. A simplified approach was used to calculate the dimensionless variables. Considerable decrement was observed on dimensionless variables with the increment of producing time. Different parameters were analyzed...
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