Generación de un Modelo Geológico de la Formación Hollín en un Campo del Bloque 61 de la Cuenca Oriente del Ecuador

Abstract

The present research project was proposed in order to generate an Tridimensional Geological Model for the Cretaceous Hollin Formation (Upper Aptian to Early Albian, 105 - 115 Ma.) in a Block 61 oilfield of the Ecuadorian Orient Basin and to define an updated geological framework of the main reservoir of the study area. The geological characterization of this reservoir was developed by the integration of models: structural, sedimentological, stratigraphic and petrophysical which were obtained of previous studies and by the interpretation of indirect information from 55 drilled wells: well logs, stratigraphic tops and geophysical data; and direct information from the sedimentological analysis of cores. Consequently, the necessary procedures were obtained using the modeling software Jewel Suite Subsurface Modeling and Petrel. After the 3D Geological Model was developed, static Original Oil in Place was quantified (OOIP) for Hollin reservoir which was calculated by the volumetric deterministic method and displayed a value of 301 MMBls; finally, the Original Recoverable Oil Reserves were updated for the field and displayed 88,61 MMBls. These data are indispensable to characterize the potential areas for optimization of hydrocarbon production.