Análisis hidrodinámico de la situación actual y de los diferentes escenarios propuestos dentro de la red de oleoductos del bloque 58-Lago Agrio

Abstract

In this Project a Hydrodynamic analysis was developed for Amazonian District Block 58 – Lago Agrio pipeline network. Initially the information of VHR, Tipishca, Sansahuari and Cuyabeno’s stations is presented, including 2016 production, the expected production in five years, the pump systems and pipeline systems of each station. Also the project included the expected production changes caused for the repowering of old fields, the adhesion of new fields oil production and changes in the oil quality caused by the mixture of different oils. The Hydrodynamic analysis used the equation of Darcy-Weisbach to calculate the pipe loses and the Energy Model with the Bernoulli Equation to estimate the required pressures. This mathematic model was introduced in an Excel Sheet to improve and facilitate calculations. Four different scenarios were proposed based on production time changes, in these scenarios the pipeline capacity was verified in a period of time between 2016 and 2021. The hydrodynamic results shown, that the actual capacity of the pipeline network is adequate to support the production conditions at this time, because the required pressure does not exceed the Maximum Admissible Operation Pressure of the pipes and the actual pump system supply the required energy. Nevertheless at the beginning of 2019 according with the expected production of each station, the pipeline cannot support the pressure requirements, so a contingency plan was necessary to prevent any operational and environmental risk. Solutions like increase the pumping hours or the number of pumps and replace the lines were included inside the recommendations.