Artificial lift system
OwnerTerry Bulleninventor
Life of this patent
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Abstract
An artificial lift system provides an artificial lift design specifically for the pumping of liquids from natural gas wells, but not limited to this application. In doing so, production rates and reserves recovered can be significantly increased. The artificial lift system uses small diameter continuous tubing to run the pump in the hole and deliver small volumes of high pressure dry gas as a power fluid to the pump. This power fluid forces liquid that has been drawn into the pump from the bottom of the wellbore to surface. By removing the liquids from the wellbore the natural gas can flow unrestricted to surface. The design and equipment allow for a cost effective artificial lift alternative.
Claims5
An artificial lift system, comprising:
- (a) a gas compressor;
- (b) a gas pump seated downhole in a well;
- (c) a power conduit extending along the well and providing a fluid connection between the gas pump and the gas compressor;
- (d) a pressure actuated fill valve and a pressure regulating check valve, together operating as a three-way valve, disposed between the gas pump and the power conduit;
- (e) a bleed valve and a bleed valve control line, connected to the power conduit between the pressure actuated fill valve and the pressure regulating check valve;
- and
- (f) a vent orifice connected to the bleed valve control line, for relieving the pressure difference actuating the bleed valve.
Dependencies are inferred from the claim text.