Metodologia para seleção de alternativas para sistemas de bombeio centrífugo submerso para produção de óleos pesados em águas profundas

Abstract

In an oil field development, the choice of the appropriate artificial lift method is extremelly important, in order to obtain the best financial return for the project. This thesis has the objective of develop a methodology to define the position of the Electrical Submersible Pump (ESP) System to produce heavy oil in deep water. One of the most recommended artificial lift methods for heavy oil is the ESP, but, due to its low MTTF, in some cases, the associated cost for the workovers is prohibitive. An alternative to reduce the cost of the workover is the positioning the ESP in the seabed, in a pumping skid. This alternative, however, reduces the initial well flow rate. Therefore, it is proposed technical, economical and risk analysis stages to be easily applied to assists the decision of the best positioning of the pumping system, inside the well or on the seabed, in order to obtain the best financial return.