Differential gas lift valve

Patent · Tue Dec 25 00:00:00 EST 1984

OSTI ID:6017885

Canalizo, C R; Fisher, Jr, E P

A gas lift valve device of the differentially operated type, having a straight, non-tortuous flow passage therethrough, with a hollow valve stem providing a portion of such passage, said device having a floating seat which automatically moves to valve engaging position to check backflow, the area of said seat being larger than the area of a piston on said stem and arranged so that the valve will close at a first predetermined differential pressure and will open at a second predetermined differential pressure which is lower than the first.

• Assignee: Otis Engineering Corporation
• Patent Number(s): US 4489743
• OSTI ID: 6017885
• Resource Relation: Patent File Date: Filed date 29 Jul 1982; Other Information: PAT-APPL-403285
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
GAS LIFTS
PNEUMATIC CONTROLLERS
VALVES
ENHANCED RECOVERY
GAS INJECTION
PISTONS
ARTIFICIAL LIFTS
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID INJECTION
RECOVERY
WELLS
020300* - Petroleum- Drilling & Production