Factibilidad técnica y económica de la desgasificación de anulares en pozos productores de petróleo del campo Auca

Abstract

During the productive life of an oil well, problems arise due to factors that directly affect the pumping system and production. One of these factors is the presence of free gas in the annular space of the wells. In the present study, the technical-economic feasibility analysis was carried out for the installation of unified degassing systems in the wells of the Auca-89 and Chonta Sur-01 platforms, for which information was taken from the remote monitoring system "Zedi" and daily operating activities for one year. Five wells were selected for this case study. The input data in the technical analysis were the production tests on the dates where there was evidence of presence of gas in the annular space. For the economic evaluation, the financial indicators were analyzed, considering the investments made for the installations of the facilities and the cash flows for maintenance, operation and production. As a result, it was possible to quantify the production losses caused by the pressurization of the annulus in the study wells and it could be determined that the degassing system is a solution to recover close to the total of the losses, with its investment being a viable alternative for the optimization of oil production in the Auca field. Concluding that, for the analyzed case studies, the investment in degassing systems is technically and economically feasible.