Steam and inflow control for sagd wells
AssigneeBaker Hughes Oilfield Operations LLC
InventorsKousha Gohari, Oscar Becerra Moreno, Alexander Kendall
Life of this patent
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Abstract
A downhole flow control configuration including a housing, a converging-diverging flow path in the housing, the flow path including a first portion including an inlet, a converging section, and a throat section, the first portion preferentially passing a portion of a fluid having a greater subcool, and the converging-diverging flow path further including 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.
Claims10
A downhole flow control configuration comprising:
- a housing;
- a converging-diverging flow path in the housing, the flow path including:
- a first portion comprising:
- an inlet,
- a converging section, and
- a throat section,
- the first portion preferentially passing a portion of a fluid having a greater subcool, and
- the converging-diverging flow path further including:
- 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.
A method for controlling fluid flow in a downhole tool comprising:
- flowing fluid into a subcool/steam quality part of the tool and preferentially passing fluid that is at a greater subcool;
- flowing fluid passed through the first portion of the tool into a length based pressure drop part of the tool;
- and
- dropping pressure of the fluid in the length based pressure drop part of the tool.
Dependencies are inferred from the claim text.