FEL Method in One 3D Project to Develop an Oil Field in Los Perales, San Jorge Basin, Argentina

Abstract

Abstract This work shows the realization of a 3D static and dynamic model with feasibility analysis and conceptual planning in the field of "La Itala" in Los Perales. Incorporate in one unique project feasibility and conceptual model is the principal benefits of this method because until now we haven't this kind of project in this all field. To perform this project, it was used some basic data of the wells, like SP and resistivity and a petrophysical model. To do the feasibility analysis we use wells basics curves envelops. Combining with core analysis a static facies model was generated. Using averages of rock and fluid parameters along with the history of production and injection, a dynamic model was initialized. This model permits to do a "History Match" at field level. This allowed visualizing the evolution in time of displacement of fluids, product of the water injection. The conclusions of this model define continuity with the conceptual model using a complete petrophysical study (VCL-Phie and Sw). Combination of the results of SP and short resistivity envelopes yielded to a first approximation of a Vclay. From there a binary log was generated. Settle the same curve with a vertical proportion curve; reference levels used to separate the model in zones were defined. The study of cores fostered a relationship between facies and resistivity. To make a reliable 3D structural model the control was made by some surfaces created on well tops by correlation. In this static model were charged all wells data available (perforations, facilities, production and injection). Along with rock properties and fluid average, the model was initialized. At this stage of visualization, a quick historical setting, at field level, injection and production served to understand the behavior of fluids in the reservoir. This understanding in the changes of water saturation turns to be a very important input for the next phase of conceptualization. Having a static and dynamic visualization model purchase in both ways the conceptualization phase, whether or not pass to the next stage. Everything done in the first stage is the starting point of the next (Front End Loading - FEL). The FEL methodology is deeply rooted in the DNA of YPF. In this case, with software who allowed enhancing this work process, creating a unique project where all available parameters are incorporated, with the possibility of being used in the different phases of the study. At the same time, each analysis on the project, adds value to the next step. This work allowed to reservoir engineer of this field to improve the oil recuperation factor.