Estudio para el incremento de la producción en yacimientos depletados de baja permeabilidad del bloque Gustavo Galindo Velasco mediante fracturamiento hidráulico

Abstract

The project was developed with the objective of carrying out a technical-economic study to increase the oil production from the Gustavo Galindo Velasco Block by applying the Hydraulic Fracturing technology in existing wells. The main reservoirs are Atlanta, Santo Tomas and Socorro, which are characterized by their low permeability (less than 1 md), and due to their extensive productive life, pressure has declined to minimum values. For this research we analyzed the last fractures campaigns that were not successful, it was determined that the main causes are: poor conditions in the wells mechanical state, cement poor quality, low reservoir pressure, presence of depleted layers near fractured areas, incomplete technical information on candidate wells, initial wells productivity overestimation, production decline in forecast were underestimated, for which reasons it was decided to look for zones where to implement infill wells and new areas for development. The Certeza area was selected where 13 new wells containing, among others, the Atlanta and Santo Tomas reservoirs were located, immediate hydraulic fracturing after drilling will allow the real potential of the wells to be achieved.