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 device for determining a set of frequencies that can be used for transmitting information between radio transceivers of a network operating with frequency hopping
Electric power steering apparatus
Method for dropping packet data, radio communication device, and mobile communication system
Ionic compound, anti-static pressure-sensitive adhesive and polarizer comprising the same
Wrench
Stool
Push-up bar
  Randomly Featured Patents
Ratchet-type lever mechanism for seat lifter
Billiard cue tip
Spiroketone process
Automotive refinish primer surfacer containing acetoacetate functional polyesterpolyol, a polyacrylate, and an amine functional epoxy resin
Abnormality detecting device of electric power converting device and abnormality detecting method
Secure restoration of data selected based on user-specified search criteria
Muscle strength assessment system
Multi-directional rolling massager
Optical transmitter and method for generating a digital optical signal sequence
Flexible switch and method for producing the same