Aplicación de nuevas tecnologías en fluidos de perforación de reservorios RDF para maximizar la producción en pozos horizontales del Oriente Ecuatoriano

Abstract

In Ecuador, the drilling of horizontal wells use a traditional fluid, it is a challenge due to issues such as formation damage and the limited ability to restore permeability. Consequently, this project analyzed the application of new technologies in Reservoir Drilling Fluids (RDF) aimed at maximizing production in horizontal wells. The general objective was to design an RDF fluid that incorporates an emulsion preventer and an internal breaker, to reduce skin and optimize the productivity of a horizontal well. The working hypothesis proposed that the incorporation of these technologies would allow greater rock-fluid compatibility and a significant reduction in induced damage. The justification is based on the need to overcome the limitations of conventional drilling fluids in complex geological environments, such as those encountered in horizontal wells. The development of the project was carried out through laboratory formulation of fluids under API 13B standards, evaluating different additive concentrations and permeability return test. The results showed that the new RDF fluid increased flow return up to 96% and reduced cake removal time from 18 hours to 4 hours, highlighting in horizontal wells and thus constitutes a viable alternative for horizontal drilling operations in the Ecuadorian Basin. Keywords: drilling fluid, skin, horizontal well, RDF technology.