Publicación: Estimación de la Mínima Presión de Miscibilidad en las arenas basales del campo Colombia en Paz
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Universidad Industrial de Santander
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En el Campo Colombia en paz se visualiza la oportunidad de incrementar productividad mediante la implementación de métodos de recobro secundario. El proyecto apunta a las arenas basales debido a que la calidad de su fluido es mejor en comparación con las arenas superiores (30 ° API vs 20 ° API, de forma respectiva). El objetivo principal es evaluar el efecto de la reinyección de gas en la producción de petróleo.En la actualidad el campo dispone de una red de gas para levantamiento artificial (Gas Lift) con una presión disponible de 1,200 psi. Esta red se usaría para la implementación del proceso, tanto de manera cíclica como continua, con tasas de flujo entre 100 y 1,000 kscfpd (kilo standard cubic feet per day). Se espera que la producción de petróleo se incremente debido a la presurización en el área de drenaje del pozo e incremento de la movilidad por solubilidad parcial del gas en el crudo.En el Centro de Innovación y Tecnología - Instituto Colombiano del Petróleo se midió el recobro de crudo por la inyección de gas de producción. Para ello, se siguió el instructivo técnico de ensayo GTN-I-009 para realizar evaluaciones con gas de producción. Los ensayos se realizaron a temperatura de yacimiento de 138 ° F, Gas Oil Ratio (GOR) de 440 scf/STB y crudo con agua y sedimentos Basic Sediments and Water (BS&W) menor que 1 %, tal como lo exigen los protocolos experimentales.En laboratorio, la eficiencia de desplazamiento de crudo con gas de producción fue del 18 % a la presión máxima de operación del sistema Gas Lift de 1,600 psi. La Mínima Presión de Miscibilidad se estimó en 8,407 psi mediante extrapolación lineal debido a que se tomaron datos a dos presiones en el equipo Slim Tube.Palabras claves: Inyección de gas, Slim Tube, Mínima Presión de Miscibilidad.
In Colombia en paz Oil Field, the opportunity to increase productivity through the implementation of secondary recovery methods is visualized. The project aims at basal sands because the quality of its fluid is better compared to the upper sands (30 ° API vs 20 ° API, respectively). The main objective is to evaluate the effect of gas reinjection on oil production.Today, the field has a gas lift network (Gas Lift) with an available pressure of 1,200 psi. Which would be used for the implementation of the process both cyclic and continuous and with flow rates between 100 - 1,000 kscfpd (kilo standard cubic feet per day). Oil production is expected to increase due to pressurization in the well drainage area and increased mobility by partial solubility of the gas in the crude.At the Center of Innovation and Technology - Instituto Colombiano del Petróleo, the recovery of crude oil was measured by the injection of production gas. The technical standard GTN-I-009 was used to conduct runs with production gas. The tests were performed at 138 ° F reservoir temperature, 440 scf / STB Gas Oil Ratio and crude with Basic Sediments and Water (BS&W) less than 1% as required by the experimental protocols.At the laboratory, the total recovered crude with production gas was 18 % at the maximum operating pressure of 1,600 psi for the Gas Lift system. The Minimum Miscibility Pressure was estimated at 8,407 psi by linear extrapolation using experimental data taken from Slim Tube Equipment.Keywords: Gas injection, Slim Tube, Minimum Miscibility Pressure.
In Colombia en paz Oil Field, the opportunity to increase productivity through the implementation of secondary recovery methods is visualized. The project aims at basal sands because the quality of its fluid is better compared to the upper sands (30 ° API vs 20 ° API, respectively). The main objective is to evaluate the effect of gas reinjection on oil production.Today, the field has a gas lift network (Gas Lift) with an available pressure of 1,200 psi. Which would be used for the implementation of the process both cyclic and continuous and with flow rates between 100 - 1,000 kscfpd (kilo standard cubic feet per day). Oil production is expected to increase due to pressurization in the well drainage area and increased mobility by partial solubility of the gas in the crude.At the Center of Innovation and Technology - Instituto Colombiano del Petróleo, the recovery of crude oil was measured by the injection of production gas. The technical standard GTN-I-009 was used to conduct runs with production gas. The tests were performed at 138 ° F reservoir temperature, 440 scf / STB Gas Oil Ratio and crude with Basic Sediments and Water (BS&W) less than 1% as required by the experimental protocols.At the laboratory, the total recovered crude with production gas was 18 % at the maximum operating pressure of 1,600 psi for the Gas Lift system. The Minimum Miscibility Pressure was estimated at 8,407 psi by linear extrapolation using experimental data taken from Slim Tube Equipment.Keywords: Gas injection, Slim Tube, Minimum Miscibility Pressure.