E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/12 (2006.01)
Patent
CA 2198030
An artificial lift system and method for lifting fluids from an underground formation. The artificial lift system comprising a production tubing (40) through which the fluid is carried from the formation to the surface and a pressure reducer (14), such as a venturi, fluidly connected to the production tubing to artificially raise the level of the fluid in the production tubing. The method comprises reducing the pressure in the production tubing at an upper portion thereof to increase the pressure differential between the uppper portion of the production tubing and a lower portion of the production tubing to increase the level of liquid in the production tubing for subsequent removal in an artificial lifting step.
Système d'extraction artificiel (et procédé associé) d'extraction de fluides provenant de formations souterraines comportant un tube de production (40) transportant le fluide de la formation jusqu'à la surface, et un réducteur de pression (14), par exemple un venturi, relié au tube de production pour y accroître artificiellement le niveau du fluide. Le procédé consiste à réduire la pression dans la partie haute du tube, ce qui accroît le différentiel de pression entre le haut et le bas du tube et y relève le niveau du fluide en vue d'une extraction ultérieure lors d'une étape d'extraction artificielle.
Borden Ladner Gervais Llp
Hershberger Michael D.
LandOfFree
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