Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Variable orifice gas lift valve assembly for high flow rates with detachable power source and method of using same










Image Number 5 for United States Patent #5971004.

The present invention is a surface controlled gas lift valve designed for high flow rates and used in a subterranean well, comprising: a valve and actuating assembly for sealable insertion in a mandrel. The valve has a variable orifice which alternately permits, prohibits, or throttles fluid flow into the valve, and a detachable and/or remote actuator are disclosed. The valve may be actuated using momentary bursts of hydraulic pressure to the actuating assembly. Variable orifice opening settings are achieved by providing successive bursts of hydraulic pressure to the actuating assembly, which cause a cylindrical cam within the actuating assembly to be indexed between multiple support positions. The orifice valve and the actuator while operatively connected, may be separately installed in or retrieved from the mandrel by either wireline or coiled tubing intervention methods.








 
 
  Recently Added Patents
Sensing device and electronic apparatus
Semiconductor memory device, test circuit, and test operation method thereof
Model matching for trace link generation
Wristband with detachable labels
Neurostimulation system
Detection system and method for mobile device application
Display screen or portion thereof with icon
  Randomly Featured Patents
Photodiode, optical receiver device including the same, and method of making the photodiode
Composite oxides of A-site defect type perovskite structure as catalysts
Developing unit with gripper that covers developer filling opening
Button panel
Access assembly
Methods and apparatus for performing a memory management technique
Electronic timepiece
Etching composition and use thereof
Vertical centrifugal hydraulic pump assembly
Up-set shrinker for producing thick wall steel pipe