Metodología para la identificación de pozos con bajo rendimiento productivo en los Bloques 64 y 65 del Oriente Ecuatoriano

Abstract

In the first instance, a geological, petrophysical, pressure behavior, PVT data and current production of Blocks 64 and 65 are performed. The OFM ™ program is then introduced and the remaining oil reserves are estimated by the method of Decline Curve Analysis (DCA). Subsequently wells that have a low performance are selected, this is done using the four quadrants method (Heterogeneity Index and Completion Efficiency Analysis), once the selection is made, the wells are sorted according to their remaining reserves and those with the best opportunity to increase production are selected. From the candidate wells accumulated fluid graphs are performed, WOR behavior and its derivative are developed to detect problems of excessive water production, current mechanical state, and Build Up´s are analyzed to discard or confirm the presence of reservoir skin. Workover are recommended in order to increase crude oil production for which IPR curves are elaborated to quantify this increase. Finally, the project is evaluated economically through the calculation of indicators such as Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period, Benefit Cost Ratio (BCR), and then conclusions and recommendations are detailed.