Análise das propriedades dos fluidos de petróleo ao longo da elevação utilizando simulador de poço

Abstract

The main objective this study is to understand the fluids behavior and properties over the petroleum elevation. The analyzed properties are Bo, Bg, Rs, oil viscosity, gas viscosity, oil gravity, oil flow rate, gas flow rate and the flow pattern that the fluids will be over this process. An automated spreadsheet was used to simulate this process; it was developed by Igor Belizário Rocha and Lucas Bruno Russo. Correlations were applicate on the spreadsheet with the objective of simulate the behavior of the fluids properties over the petroleum well, where changes of temperature and pressure will happen, changing the properties as a consequence. The calculations on the spreadsheet are based on the elevation method of Beggs and Brill that considers a multiphasic flow on horizontal tubes and constant transversal sections. Correlations are applicate so to simulate the real angle that the flow occurs. The spreadsheet not just uses the Beggs and Brill method, but it contains optimizations about the method, because the method considers the well as only one section and the fluid properties are calculated in the middle point. The developed simulator can divide the well in many sessions and calculate the properties in the middle points of all the sessions, this way; it can simulate in a more realistic way the fluid behavior over the petroleum elevation and analyze it, trying to understand better this behavior. The results of the spreadsheet are showed as graphics, because they can show how the properties will vary from the well fund to the well head, showing his behavior with the variations of pressure and temperature that occurs over the fluid elevation.