Análise de parâmetros de utilização dos métodos de elevação GLC e GLI no estado de Alagoas

Abstract

Oil wells typically require an artificial lift method to produce or increase the production rate of hydrocarbons from the reservoir. Among the active production wells utilizing artificial lift in the Pilar, Furado, São Miguel, Cidade São Miguel, Anambé, Arapaçu, and Paru fields located in Alagoas, 81% employ Gas Lift. Therefore, it is of paramount importance to disseminate and enhance theoretical and technical knowledge on the subject to the entire audience who, in any capacity, is part of or involved in the state's oil production chain. This present work aims to conduct a literature review of the established concepts related to pneumatic lifting methods, namely CGL (Continuous Gas Lift) and IGL (Intermittent Gas Lift), develop a comparative analysis between the two methods, highlighting the principal differences, advantages, and disadvantages, briefly presenting the impact that this method has on the production of these fields and emphasizing the significance of wells equipped with gas lift in their total production. Furthermore, a case analysis was performed on paraffin formation in production columns, possibly induced by an incorrect method selection. As a result, it was feasible to identify the well parameters that are most instrumental in determining the appropriate method between CGL and IGL, along with the primary characteristics of these methods. Additionally, it was demonstrated that currently, wells equipped with gas lift are accountable for approximately 42% of the total oil production and 13% of the total gas production in the fields