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
Method and apparatus for providing spin-home function for mobile communication terminal
Lifting apparatus
Health monitoring of applications in a guest partition
Compression molding method and reinforced thermoplastic parts molded thereby
Media identification system with fingerprint database balanced according to search loads
All-angle light emitting element having high heat dissipating efficiency
Nucleic acid sequences encoding strictosidine synthase proteins
  Randomly Featured Patents
Section insulators of electric traction systems
Method and apparatus for producing power for an induction heating source
Random access memory with apparatus for reducing power consumption
Optimal sync for rapid spanning tree protocol
Preparation of cyclohexane dicarboxylic acids
Systems and methods for powering circuits for a communications interface
Automatic jumper wire feeder
Method and apparatus for testing light-emitting device
Non-impact printer
Multi-hulled vessel