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Abstract
ABSTRACT In this study, an integral bubble plume model is applied to simulate the behaviors of offshore gas well blowout under seawater. The numerical model simulation results are good in comparison with the field data. The bubble plume radius, upward velocity and buoyancy for different ambient fluid stratification and gas flow rate cases are calculated and investigated. Analysis of the calculated results reveal that: (1) The bubble plume radius increases but terminal rise height decreases when the gas flow rate decreases. (2) Ambient sea water with strong density stratification will inhibit the bubble plume rise and reduce its terminal rise height. (3) Sea water stratification effect on the bubble plume terminal rise height is more significant than that of gas flow rate in several orders of magnitude.
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