Liquid level actuated sleeve valve

Patent · Tue Sep 20 04:00:00 EDT 1988

OSTI ID:6638469

Pringle, R E; Morris, A J

This patent describes a liquid level actuated sleeve value for use in a well tubing in a well casing comprising: a body having connections at each end for connection in a well tubing. The body has a first port in communication between the bore and the outside of the body, and a movable seal energizer sleeve telescopically engaging the body, the sleeve having a second port generally aligned with the first port, a movable sleeve piston telescopically engaging the seal energizer sleeve. The piston includes a third port for opening and closing the first and second ports. The sleeve piston being exposed on a first side to fluid pressure outside of the body acting in a direction to move the sleeve piston to a closed port position, a pressurized gas chamber in the body in communication with the sleeve piston on a second side and acting in a direction to move the sleeve piston to an open port position, first seal means between the seal energizer sleeve and the sleeve piston, and between the seal energizer sleeve and the body, second seal means between the body and the sleeve piston and engagable by the seal energizer sleeve, and coacting shoulders on the sleeve piston and the seal energizer sleeve for moving the seal energizer sleeve and compressing the second seal means when the sleeve piston moves to the close position.

• Assignee: Camco, Inc., Houston, TX
• Patent Number(s): US 4771831
• OSTI ID: 6638469
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONCENTRATORS
CONTROL EQUIPMENT
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FLOW REGULATORS
LEVELS
NATURAL GAS WELLS
OIL WELLS
PIPES
PISTONS
SEALS
SLEEVES
VALVES
WELL CASINGS
WELLS