Retrievable fluid control valve and method
Patent
·
OSTI ID:5144393
A normally closed retrievable valve assembly for positioning within a tubing string located in a borehole is described. The valve assembly includes a piston for compressing a spring carried by the valve body. The piston is responsive to the pressure of the fluid in the tubing string above the valve assembly. A valve member is positioned in the valve body and is responsive to the pressure of fluid in the tubing string above the valve assembly. The fluid pressure moves the valve member from the normally closed position to an open position against the bias of the spring when a predetermined valve-opening pressure is met or exceeded by the fluid in the tubing string. The valve assembly includes means for unseating and retrieving the valve assembly from its operating position within a tubing string. A method of employing the valve assembly in treating an oil well or the like is described. (12 claims)
- Assignee:
- Halliburton Co
- Patent Number(s):
- US 3847223
- OSTI ID:
- 5144393
- Country of Publication:
- United States
- Language:
- English
Similar Records
Retrievable density control valve
Tubing drain valve
Retrievable fluid control valve with damping
Patent
·
Tue Jul 11 00:00:00 EDT 1972
·
OSTI ID:6024767
Tubing drain valve
Patent
·
Mon Feb 23 23:00:00 EST 1987
·
OSTI ID:6759409
Retrievable fluid control valve with damping
Patent
·
Tue Sep 18 00:00:00 EDT 1990
·
OSTI ID:6469959