Difference between revisions of "Liquid loading"
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[[Liquid loading]] is a phemonenon when the gas phase does't provide sufficient transport energy to lift the liquids out of the well. | [[Liquid loading]] is a phemonenon when the gas phase does't provide sufficient transport energy to lift the liquids out of the well. | ||
| − | To avoid [[Liquid loading]] higher gas rate is required. The high gas rate is achieved with high gas velocity and low wellhead flowing pressure. | + | To avoid [[Liquid loading]] higher gas rate is required. |
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| + | The high gas rate is achieved with high gas velocity and low wellhead flowing pressure. | ||
=== Math & Physics === | === Math & Physics === | ||
Revision as of 13:12, 15 March 2017
Brief
Liquid loading is a phemonenon when the gas phase does't provide sufficient transport energy to lift the liquids out of the well.
To avoid Liquid loading higher gas rate is required.
The high gas rate is achieved with high gas velocity and low wellhead flowing pressure.
Math & Physics
The minimum gas velocity to remove the liquid equation:
The minimum gas rate to remove the liquid equation:
Nomenclature
= flow area, ft^2
= flowing wellhead pressure, psia
= gas rate, MMscf/d
= gas density, lbm/ft3
= liquid density, lbm/ft3
= surface tension, dyne/cm
= flowing temperature, °R
= gas velocity, ft/sec
= gas compressibility factor at flowing P & T, dimensionless
References
Turner, R. G., Hubbard, M. G., and Dukler, A. E. (1969) “Analysis and Prediction of Minimum Flow Rate for the Continuous Removal of Liquids from Gas Wells,” Journal of Petroleum Technology, Nov. 1969. pp. 1475–1482.
