Steam and inflow control for SAGD wells

A downhole flow control configuration including a housing, a converging-diverging flow path in the housing. The flow path includes a first portion including an inlet, a converging section, and a throat section. The first portion preferentially passes a portion of a fluid having a greater subcool. Th...

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Bibliographische Detailangaben
Hauptverfasser: Moreno, Oscar Becerra, Kendall, Alexander, Gohari, Kousha
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A downhole flow control configuration including a housing, a converging-diverging flow path in the housing. The flow path includes a first portion including an inlet, a converging section, and a throat section. The first portion preferentially passes a portion of a fluid having a greater subcool. The converging-diverging flow path further includes a second portion comprising a diverging section that recovers fluid pressure lost in the converging section and the throat section, and an outlet and an elongated helical flow path connected to the outlet of the converging-diverging flow path, the helical flow path producing a pressure drop in a fluid flowing therein during use.