Stabilization of slugging in oil production facilities with or without upstream pressure sensors |
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Authors: | Florent Di Meglio Nicolas Petit Vidar Alstad Glenn-Ole Kaasa |
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Affiliation: | 1. Centre Automatique et systèmes, MINES ParisTech, 60 bd St-Michel, 75272 Paris Cedex 06, France;2. Statoil ASA, Research Center Porsgrunn, Heroya Forskningspark, 3908 Porsgrunn, Norway |
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Abstract: | This paper presents methods for suppressing the slugging phenomenon occurring in multiphase flow. The considered systems include industrial oil production facilities such as gas-lifted wells and flowline risers with low-points. Given the difficulty to maintain sensors in deep locations, a particular emphasis is put on observer-based control design. It appears that, without any upstream pressure sensor, such a strategy can stabilize the flow. Besides, given a measurement or estimate of the upstream pressure, we propose a control strategy alternative to the classical techniques. The efficiency of these methods is assessed through experiments on a mid-scaled multiphase flow loop. |
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