Process for pumping a multi-phase gas-liquid mixture by means of the use of a pump
AssigneesSnamprogetti S.p.A., AGIP S.p.A.
InventorGiovanni Orlando
Life of this patent
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Abstract
A process is disclosed, for pumping a multi-phase gas-liquid mixture by using a pump as the thrusting machine, and at least two pumping vessels alternatively performing functions of intake and functions of compression/delivery.
Claims9
A process for pumping a multi-phase gas-liquid mixture through a delivery line at a delivery line pressure comprising
- a) feeding said multi-phase mixture from a pressurized intake line, under the pressure of said intake line, to a first vessel full of liquid, separating the multi-phase mixture in said first vessel into a gaseous phase and a liquid phase;
- b) simultaneously with the gas-liquid separation sending the liquid present in said first vessel and the liquid separated inside the first vessel to a pump, by means of which the liquid is pumped into a second vessel, full of gas under the intake line pressure, causing said gas contained inside said second vessel to be compressed by said liquid initially present in said first vessel, until said gas reaches a pressure equal to that of said delivery line;
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- c) causing the compressed gas and compressing liquid to leave the second vessel and enter said delivery line by introducing more liquid from said first vessel into said second vessel through said pump, the amount of liquid leaving said second vessel being the same as that of the liquid entering the first vessel.
A process for pumping a multi-phase gas-liquid mixture through a delivery line at a delivery line pressure comprising passing the mixture into a first vessel full of liquid from an intake line under pressure, separating liquid from said liquid gas mixture in said first vessel, simultaneously passing said liquid in said first vessel and said separated liquid through an operating pump to create a liquid piston, passing the liquid piston into a gas containing second vessel to build pressure within said vessel to said delivery line pressure and releasing said gas and liquid into said delivery line at said delivery line pressure.
A process for pumping a multi-phase gas-liquid mixture through a delivery line at a delivery line pressure comprising
- a) feeding the multi-phase mixture from a pressurized intake line, under the pressure of said intake line, to a gas-liquid phase separator full of liquid, separating the multi-phase mixture in said gas-liquid phase separator into a gaseous phase and a liquid phase;
- b) passing the gas phase to an empty first vessel until the pressure reaches the intake line pressure;
- c) simultaneously with the gas-liquid separation sending the liquid present in said gas-liquid phase separator and the liquid separated inside the gas-liquid phase separator to a pump, by means of which the liquid is pumped into a second vessel, full of gas under the intake line pressure, causing the gas contained inside said second vessel to be compressed by said liquid initially present in said gas-liquid phase separator, until said gas reaches a pressure equal to that of said delivery line;
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- d) causing the compressed gas and compressing liquid to leave the second vessel and enter said delivery line by introducing more liquid from said gas-liquid phase separator into said second vessel through said pump, the amount of liquid leaving said second vessel being the same as that of the liquid entering the gas-liquid phase separator.
A process for pumping a multi-phase gas-liquid mixture through a delivery line at a predetermined pressure comprising
- a) feeding the multi-phase mixture from a pressurized intake line, under the pressure of said intake line, to a first vessel full of liquid, separating the multi-phase mixture in said first vessel into a gaseous phase and a liquid phase;
- b) simultaneously with the gas-liquid separation sending the liquid present in said first vessel and the liquid separated inside the first vessel to a pump, by means of which the liquid is pumped to a second vessel, full of gas under a delivery line pressure,
- c) causing a portion of aid gas in said second vessel under delivery line pressure to flow into a third vessel under intake line pressure until delivery line pressure is reached in said third vessel while simultaneously maintaining delivery line pressure in said second vessel by pumping the liquid from said first vessel into said second vessel;
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- d) causing the compressed gas and compressing liquid to leave the second vessel and enter said delivery line by introducing more liquid from said first vessel into said second vessel through the pump, the amount of liquid leaving said second vessel being the same as that of the liquid entering the first vessel.
Dependencies are inferred from the claim text.