Realização de análise PVT em amostras sintéticas de derivados de petróleo

Abstract

The oil industry is known worldwide as a rich strategic sector, however its sensitive to a commodity that controls this market: the barrel of oil. In mid-2014 a drastic change occurred in the industry, the price of a barrel reached US$30, in 2016, being this the lower value in the last 15 years, causing a deep crisis in the sector. Based on that, the main players of this market saw the need to study and understand the behavior of the reservoir, in order to improve the production, and decrease the costs. The relationship between pressure-volume-temperature (PVT) has great importance in the data acquisition, enabling the understand of reservoir fluid flow to production. The most reliable and accurate approach to determine these properties is by laboratory analysis denominated PVT analysis. Therefore, this work aimed to carry out a laboratory analysis of a synthetic petroleum (petroleum ether, methane) sample in order to obtain the parameters: bubble pressure (Pb), oil formation volume factor (Bo), volume Factor-formation gas (Bg) solubility ratio (Rs). Therefore, the result obtained for the Bubble Pressure was 168.80 bar. For the parameters of Bo, Bg and Rs the results were developed in graphic formats of each property by reason of the pressure. Finally, a brief comparison was made to other PVT analysis results.