Resources Contact Us Home
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
Constant low-flow air source control system and method
Vehicle, toy, and/or replicas thereof
System and method for document orientation detection
Isolated Australian coral reef fluorescent proteins and cell-based kinase or phosphatase platforms for cancer drug development
Alleviation of laser-induced damage in optical materials by suppression of transient color centers formation and control of phonon population
Human and mouse targeting peptides identified by phage display
Integrated process for the manufacture of fluorinated olefins
  Randomly Featured Patents
Sea cleaning and oil recovery vessel termed "scor-vessel"
Closed loop compressed gas system with oil mist lubricated screw compressor
In-vivo imaging device, optical system and method
Shipment pallet for heavy and sensitive equipment
Laundry iron
Soybean cultivar 98164635
Electrode array
Connector for framing system
Fingernail enhancement
Server systems