Ajuste de la presión anular en pozos con bloqueo por gas para optimización de producción en el campo cira infantas
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Universidad Industrial de Santander
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La industria petrolera se ha caracterizado a lo largo de la historia por la evolución en la forma de desarrollo de los campos. Antiguamente, cuando los campos dejaban de ser económicamente viables debido a las bajas tasas de producción o a los altos costos de extracción, se abandonaban sin consideración. Hoy en día, existen ciertas alternativas para mejorar la producción a un costo viable. En el siguiente artículo se expone la metodología propuesta para contrarrestar un problema denominado “bloqueo por gas” en el campo La Cira-Infantas del Valle Medio del Magdalena, el cual surge cuando la presión de fondo fluyente es menor a la presión de burbuja, lo cual genera flujo multifásico en la cara de la formación, causando el descenso de las tasas de producción. Se elaboró una metodología práctica analizando y teniendo en cuenta el comportamiento histórico de producción y se comparó con un odelo de simulación en el software Pipesim. Finalmente se analizaron los resultados obtenidos y se propusieron los criterios para establecer los pozos candidatos a ser sometidos al mismo procedimiento.
The oil and gas industry has been traditionally recognized throughout history due to its facility to evolve in topics related to resources exploitation and development. Previously, an oil field could be considered non-profitable when it reaches low oil production rates or high operational expenses resulting in its abandonment. A useful starting point for this article is the study of the reservoir fluids behavior. According as a definite volume of fluids is extracted from the reservoir, the system progressively lost energy until the static bottom-hole pressure equals the saturation pressure. At this point, it is released the first bubble of gas and the multiphasic flow appears carrying out particular issues such as gas blockage that directly affects the oil productivity index. In this article, it is exposed a detailed methodology to diminish that concrete problem exhibited in several oil wells from the Cira-Infantas which significantly strikes the well performance. In fact, it was made up a practical methodology taking into count the fluids properties variations and the historic production performance in order to compare the results obtained against a thorough analysis generated by computational modeling in Pipesim flow simulator. Finally, the acquired results were meticulously processed and there were proposed several criteria to identify the suitable wells to be submitted for the same procedure.
The oil and gas industry has been traditionally recognized throughout history due to its facility to evolve in topics related to resources exploitation and development. Previously, an oil field could be considered non-profitable when it reaches low oil production rates or high operational expenses resulting in its abandonment. A useful starting point for this article is the study of the reservoir fluids behavior. According as a definite volume of fluids is extracted from the reservoir, the system progressively lost energy until the static bottom-hole pressure equals the saturation pressure. At this point, it is released the first bubble of gas and the multiphasic flow appears carrying out particular issues such as gas blockage that directly affects the oil productivity index. In this article, it is exposed a detailed methodology to diminish that concrete problem exhibited in several oil wells from the Cira-Infantas which significantly strikes the well performance. In fact, it was made up a practical methodology taking into count the fluids properties variations and the historic production performance in order to compare the results obtained against a thorough analysis generated by computational modeling in Pipesim flow simulator. Finally, the acquired results were meticulously processed and there were proposed several criteria to identify the suitable wells to be submitted for the same procedure.
Keywords
Annular, Pressure, Gas Blockage, Production, Optimization, Anular, Presión, Bloqueo por gas, Producción, Optimización