Inventor

PRINGLE RONALD E

US122 patents

⚠️ This page may combine multiple inventors who share the name “PRINGLE RONALD E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PRINGLE RONALD E

CAMCO INT

Variable orifice gas lift valve for high flow rates with detachable power source and method of using

Bottom hole drilling assembly

Sidepocket mandrel with orienting feature

Spoolable coiled tubing completion system

Well orienting tool and/or thruster

Spoolable coiled tubing completion system

Wellbore flow control device

Variable orifice gas lift valve for high flow rates with detachable power source and method of using

Spoolable flexible hydraulic controlled coiled tubing safety valve

Communication conduit in a well tool

Spoolable flexible hydraulically set, straight pull release well packer

Method and apparatus for the downhole metering and control of fluids produced from wells

Full bore variable flow control device

Method and apparatus for remote control of multilateral wells

Method and apparatus for remote control of multilateral wells

Spoolable flexible sliding sleeve

Spoolable coiled tubing mandrel and gas lift valves

Coiled tubing concentric gas lift valve assembly

Spoolable flexible hydraulic controlled annular control valve

Spoolable flexible hydraulic controlled coiled tubing safety valve

Spoolable flexible hydraulically set, straight pull release well packer

Movable joint bent sub

Multiple use well packer

Electrically operated well completion apparatus and method

Electrically actuated well annulus safety valve

Electrically actuated well packer

Equalizing means for a subsurface well safety valve

Combination side pocket mandrel flow measurement and control assembly

Electro-hydraulic well tool actuator

CAMCO INC

Piston actuated high temperature well packer

Well flow control device

Subsurface well safety valve with curved flapper and method of making

Method and apparatus for recompleting wells with coil tubing

Liquid level actuated sleeve valve

Balance line hydraulically operated well safety valve

Method and apparatus for locking a subsurface safety valve in the open position

Hydraulic control fluid communication nipple

Pump out sub

Deep set piston actuated well safety valve

Fluid displacement well safety valve

Piston actuated well safety valve

Piston actuated well safety valve

SCHLUMBERGER TECHNOLOGY CORP

Apparatus and method for controlling fluid flow

Downhole valve

Communicating with devices positioned outside a liner in a wellbore

Wellbore flow control device

Apparatus and method for communicating with devices positioned outside a liner in a wellbore

Variable orifice gas lift valve for high flow rates with detachable power source and method of using

(unassigned)

Simplified sealing and anchoring device for a well tool

CAMCO INTERNATIONA INC

Electrically operated safety release joint