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
Handheld electronic communication device having sliding display
Switchable solvents and methods of use thereof
System and method for providing program recommendations through multimedia searching based on established viewer preferences
Messenger bag
Method of transmitting and receiving a paging message in a mobile communication system
Method for providing interactive site map
Solid-state image pickup element, method of manufacturing the same, and image pickup apparatus including the same
  Randomly Featured Patents
Magnetoresistive power amplifier
Interconnect assembly and Z-connection method for fine pitch substrates
Bubble memory disk emulation system
Ceramic multilayer electrical capacitors
Integrated circuit with upstanding stylus
Plate positioning and feeding system for a punch
Impedance blocking filter circuit for digital subscriber line communication systems
Thermostable iron oxide pigments, processes for their production, as well as their use
Cell adhesion promoting agent and method of promoting cell adhesion
Fused compounds that inhibit vanilloid receptor subtype 1 (VR1) receptor