Análise do comportamento de fases (PVT): uma abordagem teórica e cuidados no procedimento experimental

Abstract

Since the middle of 2014 the oil industry has been taking new forms and paths according to the decrease the price of a barrel of brent type oil reaching US $ 26/ barrel in 2016, the lowest level of the last 13 years, causing a deep crisis in the sector. Related to this process there is a need of the oil producing companies to understand more the behavior of the reservoir since the beginning of production to improve the development of their production. A laboratorial analysis of the relationship between Pressure-Volume-Temperature (PVT) is of vital importance for the data collection to understand the behavior of the phases and the flow of fluids present in the reservoir to the refinery. With the purpose of to improve this topic, the research approached of the methodologies used to obtain a representative sample of the fluid to be analyzed and the accurate procedures and equations used in the laboratorial PVT analysis. The research was produced with base on a vast bibliographical review of well-known authors and with studies based on reaching data. This work also objective provides to the Laboratory of the Petroleum Engineering course at UFRN a guidance for the development of accurate analyzes and with consistent data. Therefore, can to get a research that offers the best methodologies, guidelines and equations to provide more reliability in important physical properties of the oil and gas fundamental for the study of the simulation of the reservoir, risks of the exploration, estimation of reserves, guarantee of correct configuration of the equipment installed in the surface and to provide a foundation effective decision-making in reservoir management.