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Modelo mecanístico para predecir la eficiencia de separación natural en fondo de pozo Mechanistic model for predicting downhole natural separation efficiency

Authors: Richard Márquez; Mauricio Prado;

Modelo mecanístico para predecir la eficiencia de separación natural en fondo de pozo Mechanistic model for predicting downhole natural separation efficiency

Abstract

Este articulo presenta un modelo mecanístico para predecir la eficiencia de separación natural en el fondo del pozo. Basado sobre el modelo drift-flux, se desarrolló una formulación matemática para estimar la eficiencia de separación natural. El nuevo modelo considera la existencia de la velocidad de deslizamiento no solo en la dirección vertical, sino también en la dirección radial. El nuevo modelo es función de importantes variables, tales como: las características geométricas del fondo del pozo, la velocidad de deslizamiento en la dirección radial y vertical, y las tasas de gas y líquido. Se utilizó data experimental disponible para obtener una correlación para estimar el radio de arrastre de las burbujas, como una función de la tasa de gas. Las predicciones del modelo fueron comparadas y verificadas con data experimental, obteniéndose buenos resultados.This paper presents a mechanistic model to predict downhole natural separation efficiency. Based on drift-flux model, a new mathematical formulation was developed to estimate natural separation efficiency. The new model considers the existence of the slip velocity not only in the vertical direction, but also in the radial direction. The new and robust model is a function of important variables such as geometric characteristics of the bottomhole, slip velocity at both vertical and radial direction and the gas and liquid flow rates. Available experimental data was used to obtain a new correlation for the bubble drag radius, as a function of gas flow rate. Predictions of the model have been compared and verified against experimental data, showing good agreement.

Keywords

velocidad de deslizamiento, mechanistic model, free gas, levantamiento artificial, Natural separation, artificial lift, slip velocity, Engineering (General). Civil engineering (General), gas libre, T1-995, TA1-2040, Technology (General), Separación natural

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold