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1. WO1996006263 - GAS-LIFT SYSTEM FOR REMOVING LIQUID FROM GAS WELLS

Publication Number WO/1996/006263
Publication Date 29.02.1996
International Application No. PCT/US1995/010056
International Filing Date 09.08.1995
Chapter 2 Demand Filed 14.03.1996
IPC
E21B 43/12 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
CPC
E21B 43/122
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
121Lifting well fluids
122Gas lift
E21B 43/124
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
121Lifting well fluids
124Adaptation of jet-pump systems
Applicants
  • HERSHBERGER, Michael, D. [US/US]; US
Inventors
  • HERSHBERGER, Michael, D.; US
Agents
  • McGARRY, John, E.; Varnum, Riddering, Schmidt & Howlett L.L.P. Bridgewater Place P.O. Box 352 Grand Rapids, MI 49501-0352, US
Priority Data
08/293,38419.08.1994US
08/393,13421.02.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) GAS-LIFT SYSTEM FOR REMOVING LIQUID FROM GAS WELLS
(FR) SYSTEME D'EXTRACTION AU GAZ POUR ELIMINER LES LIQUIDES D'UNE SOURCE DE GAZ NATUREL
Abstract
(EN)
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.
(FR)
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.
Also published as
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