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ESTUDIO TÉCNICO-FINANCIERO PARA LA VIABILIDAD DE UN TRATAMIENTO DE FRACTURAMIENTO HIDRÁULICO EN CAMPO ESCUELA COLORADO

2014; University of Seville; Volume: 12; Issue: 1 Linguagem: Espanhol

2172-7775

J Jorge Leonardo Archila, MJ. Romero, G Fernando Enrique Calvete, A Sergio Andrés Ardila,

Oil and Gas Production Techniques

RESUMEN El objetivo del trabajo es presentar la evaluacion de factibilidad de realizar un trabajo de fracturamiento hidraulico en pozos de Campo Colorado. Para tal fin se considero que para que un tratamiento de fracturamiento sea exitoso se deben cumplir dos criterios: que la fractura sea tecnicamente ejecutable y economicamente viable. Mediante un modelo de produccion se seleccionaron los pozos que presentarian mayor potencial al disminuir el dano en cara de pozo. Posteriormente se realizo la evaluacion tecnica mediante la caracterizacion geomecanica de la formacion la cual permitio establecer: presion de poro, propiedades mecanicas y esfuerzos. Se seleccionaron los intervalos a intervenir con ayuda del modelo petrofisico. A estos intervalos se le evaluo la factibilidad de generar una fractura hidraulica mediante la determinacion del tipo de falla inicial de la roca, presencia de barreras de contencion de altura, gradiente de fractura y contraste de propiedades mecanicas. Mediante la metodologia del diseno unificado de fractura se diseno la geometria optima de fractura la cual maximizaria la productividad el pozo. Este potencial incremental de diseno fue utilizado para evaluar la viabilidad economica del tratamiento de fracturamiento el cual permite establecer si la inversion inicial y el costo operativo del tratamiento son recuperables durante el tiempo del tratamiento. Palabras clave: Fracturamiento hidraulico, Diseno unificado de fractura, Modelo geomecanico, Propiedades mecanicas, Contraste de esfuerzos, Criterio de falla. STUDY OF VIABILITY TECHNICAL- FINANCIAL FOR A HYDRAULIC FRACTURING TREATMENT IN COLORADO FIELD ABSTRACT The aim of this paper is to present the evaluation of feasibility of hydraulic fracturing job in Colorado Field wells. For this reason, it was considered for a hydraulic fracturing treatment in Colorado’s wells to be successful you must fulfill two criteria: the fracture has to be technically enforceable and economically feasible. With a production model there were selected the Wells that presented greater potential to reduce the damage in the wellbore. Later the technical evaluation was made by geomechanical characterization of lithological column which allowed setting: pore pressure, mechanical properties and stress. Intervals were selected to intervene using the petrophysical model. Within these intervals it was evaluated the feasibility of generating a hydraulic fracture by determining the type of initial failure of the rock, presence of high containment barriers of height, fracture gradient and contrast of mechanical properties. According to the Unified Fracture Design methodology it was designed the optimum fracture geometry which maximizes the well productivity. This potential incremental design was used to evaluate the economic feasibility of fracturing which allowed to establish whether the initial investment and operating cost of treatment were recovered during the treatment time. Keywords : Hydraulic fracturing, unified fracture design, geomechanical model, mechanical properties, stress differences, faulting criterion.