Lubricator valve apparatus
A lubricator valve assembly comprises a reciprocably rotatable ball valve which is operated between open and closed positions solely through the selective application of control pressures and/or tubing pressure above the valve to a double acting sleeve type actuating piston. One end of the actuating piston has a valving piston formed thereon which cooperates with a seal bore in the housing to effect the opening or closing of a bypass fluid passage extending from a region below the ball valve to a region above the ball valve. Such valving piston also functions as part of a lost motion connection between the actuating sleeve piston and a reciprocable actuator for rotating the ball valve. In opening the ball valve, the valving piston first moves upwardly to establish a fluid bypass around the closed ball valve and then establishes contact with the actuator to rotate the ball valve to an open position. The same fluid bypass may be utilized to pump through fluid around the closed ball valve by applying fluid pressure above the ball valve. Improved sealing elements for the ball valve are also provided.
- Assignee:
- Baker Oil Tools Inc.
- Patent Number(s):
- US 4476933
- OSTI ID:
- 6043628
- Resource Relation:
- Patent File Date: Filed date 11 Apr 1983; Other Information: PAT-APPL-484090
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
NATURAL GAS WELLS
FLUID FLOW
VALVES
OIL WELLS
ACTUATORS
BYPASSES
FIELD PRODUCTION EQUIPMENT
PISTONS
PRESSURE CONTROL
PUMPING
CONTROL
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing