Methodology for the selection of artificial survey systems in oil fields of Ecuador

Abstract

The selection and application of the different artificial lift systems (ALS) depending on the characteristics of the well, which are specific over time; other criteria for selecting an ALS are the operational and economic parameters. For this reason, a constant analysis should be carried out throughout the productive life of the well to determine which type of artificial lifting system is more effective or if a change of artificial lifting must be performed in some well to improve production. The article focuses on the application of a new pre-selection, matrix of artificial lift systems, based on the reservoir pressure index (InPy) and productivity index (IP) to perform the analysis and evaluation of the artificial lift system (ALS) used in the Pucuna (PCN) field, Ecuador. The results of the determined field that, from the 15-well study, for 9 wells, the most efficient ALS is hydraulic pumping, for 4 wells, the proper lifting is mechanical pumping, and for 2 wells the most efficient system is electro-submersible pumping. It can be concluded based on these results that the active ALS for this field is hydraulic pumping.