Submersible pump safety systems
Patent
·
OSTI ID:7001413
A production system is described for a petroleum well comprising: well packer means; vent passageway means through the packer means; vent valve means responsive to control fluid pressure and controlling flow through the vent passageway means; tubing means extending through the packer means; a safety valve in the tubing comprising, tubular body means, flowway means through the body means, tubular valve actuator means slidably telescoped in the body means and providing a part of the flowway means, piston means carried by the actuator means and having a sliding seal with the body means and responsive to control fluid pressure for moving the actuator means in a downward direction, resilient means urging the actuator means in an upward direction, main valve seat means surrounding the passageway means and positioned below the lower end of the actuator means when the resilient means is extended, flapper valve means in the path of the actuator means and engageable with the main valve seat means to control flow through the passageway means, port means in the body means below the main valve seat means providing a flowpath between the flowway means and the exterior of the body means when the flapper valve means is in engagement with the main valve seat means, actuator seat means below the port means engaged by the actuator means when the actuator means is in its full valve open position responsive to control fluid pressure, and seal means carried by one of the actuator seat means and the actuator means for sealing therebetween when the actuator means engages the actuator seat means to prevent flow through the port means; and pump means in the tubing below the safety valve.
- Assignee:
- Otis Engineering Corp., Carrollton, TX
- Patent Number(s):
- US 4632184
- OSTI ID:
- 7001413
- Country of Publication:
- United States
- Language:
- English
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