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US 11,794,134 B2Granted
Multiphase separation and pressure letdown method
AssigneeDeep Reach Technology, Inc.
InventorsSteven Rizea, James Wodehouse, Paul Smith, John Halkyard, Michael Rai Anderson
Life of this patent
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Abstract
A method and apparatus for the separation of gas and liquid-solid slurry under pressure, and passage of the liquid-solid slurry to an atmospheric discharge.
Claims18
An air-slurry separation system comprising:
- a separating tank pressure vessel;
- an air-slurry inlet to the separating tank pressure vessel from an airlift riser;
- a diffuser adapted to reduce air-slurry flow velocity through the inlet into the separating tank pressure vessel;
- an air release outlet located at or near the top of the separating tank pressure vessel;
- a fine slurry outlet located at a mid-level of the separating tank pressure vessel coupled to a fine slurry flowline;
- a screen on the fine slurry outlet limiting the maximum particle size that can enter the fine slurry flowline;
- and
- a coarse slurry outlet at or near the bottom of the separating tank pressure vessel coupled to a coarse slurry flowline.
5 more elements
An air-slurry separation system comprising:
- a first separating tank pressure vessel for separation of air and slurry;
- an air-slurry inlet to the first separating tank pressure vessel from an airlift riser;
- a diffuser adapted to reduce air-slurry flow velocity through the inlet into the first separating tank pressure vessel;
- an air release outlet located at or near the top of the first separating tank pressure vessel;
- a slurry outlet located at the bottom of the of the first separating tank pressure vessel coupled to a slurry flowline;
- a second separating tank pressure vessel for pressure letdown of slurry flowing through the slurry flowline;
- a fine slurry outlet located at or near the top of the second separating tank pressure vessel coupled to a fine slurry flowline;
- a screen on the fine slurry outlet limiting the maximum particle size that can enter the fine slurry flowline;
- and
- a coarse slurry outlet at or near the bottom of the second separating tank pressure vessel coupled to a coarse slurry flowline.
7 more elements
An air-slurry separation system comprising:
- a separating tank pressure vessel for separation of air and slurry;
- an air-slurry inlet to the separating tank pressure vessel from an airlift riser;
- a diffuser adapted to reduce air-slurry flow velocity through the inlet into the separating tank pressure vessel;
- an air release outlet located at or near the top of the first separating tank pressure vessel;
- a slurry outlet located at the bottom of the of the first separating tank pressure vessel coupled to a slurry flowline;
- and
- a crusher attached to the slurry flowline to limit the maximum particle size in a fine slurry flowline exiting the crusher.
4 more elements
Dependencies are inferred from the claim text.