135619 ⎘
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Methods or apparatus for controlling the flow of the obtained fluid to or in wells; Lifting well fluids; Gas lift Gas lift valves
Inserts with Swellable Elastomer Seals for Side Pocket Mandrels
#302Gas lift valve assembly and method of using
#303Gas-lift valve and method of use
#304FLYING VALVE FOR FREE PISTON
#305Downhole waterflood regulator
#306Well Tool Latching System
#307System and method for plugging a side pocket mandrel using a swelling plug
#308Gas lift system
#309Monitoring of downhole parameters and tools utilizing fiber optics
#310Gas lift apparatus for flushing and snubbing well
#311Fluid injection device
#312Flapper gas lift valve
#313Fluid injection device
#314Injection valve and method
#315Method of injecting lift gas and gas lift flow control device
#316Flexible matrix composite actuator for use in subsurface wellbores
#317Gas lift chamber purge and vent valve and pump systems
#318Gas lift valve for high pressure operation
#319Gas lift valve assembly
#320Adjustable venturi valve
#321Barrier orifice valve for gas lift
#322Injection valve and method
#323Downhole non-return valve and method
#324Wellbores utilizing fiber optic-based sensors and operating devices
#325Gas lift apparatus and method for producing a well
#326Mandrel for a gas lift valve
#327Providing a light cell in a wellbore
#328Gas lift device having nozzle with spiraling vane
#329Remotely operated three position spool valve
#330Plunger lift system
#331Dome cap and tailplug assembly
#332Gas injection valve with pressure-isolated bellows
#333Gas lift systems and methods for producing liquids from a well
#334Gas pump system
#335Double barrier gas lift flow control device
#336Double barrier gas lift flow control device
#337Downhole gas control valve having belleville washers
#338Gas lift system
#339Dynamic positioning gas lift (DPGL) system
#340Gas pump system
#341Split bobbin clutch for bypass plungers
#342Gas-lift plunger
#343Self-stabilizing gas lift valve
#344Retrievable gas lift valve system