Method and device for compressing a multiphase fluid
AssigneeTotal SA
InventorsPierre-Louis Dehaene, Jean-Louis Beauquin
Life of this patent
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Abstract
The invention relates to a method for increasing the pressure of a liquid/gas multiphase fluid, and a method for compressing a gaseous fluid, comprising: (b1) entrainment of the gaseous fluid using a motive liquid, to obtain a pressurized mixture of gas and motive liquid; (b2) separation of the pressurized mixture obtained in the preceding step in order to obtain, on the one hand, a compressed gas, and on the other hand, an auxiliary liquid. The invention further relates to devices for this purpose. Application to the production of hydrocarbons.
Claims14
A device for compressing a liquid/gas multiphase fluid, comprising:
- at least one first module comprising:
- a first liquid separation and compression unit;
- at least one second module comprising:
- a second liquid separation and compression unit;
- an ejector;
- a separator connected to the outlet of the ejector;
- a motive liquid intake line connected to the inlet of the ejector;
- a compressed gas fraction intake line and an auxiliary liquid intake line connected to the outlet of the separator;
- at least one liquid/gas multiphase fluid intake line feeding the first module;
- at least one compressed liquid fraction withdrawal line at the outlet of the first module;
- at least one gas fraction withdrawal line connecting an outlet of the first liquid separation and compression unit of the first module to an inlet of the ejector of the second module;
- and
- at least one compressed gas fraction withdrawal line at the outlet of the second module.
A gas compression device, comprising:
- an ejector;
- a gas feed line connected to the inlet of the ejector;
- a separator connected to the outlet of the ejector;
- a liquid separation and compression unit consisting of a dummy well;
- a compressed gas intake line and an auxiliary liquid intake line connected to the outlet of the separator and to the inlet of the liquid separation and compression unit;
- a compressed gas withdrawal line at the outlet of the liquid separation and compression unit;
- and
- a motive liquid intake line connected to the outlet of the liquid separation and compression unit and to the inlet of the ejector.
Dependencies are inferred from the claim text.