Wells – Above ground apparatus – With valve on cap or head
Patent
1980-10-31
1983-03-22
Novosad, Stephen J.
Wells
Above ground apparatus
With valve on cap or head
166 88, E21B 3306, E21B 3402
Patent
active
043772064
ABSTRACT:
The invention provides a device for preventing well blowouts in sucker rod pumping systems and particularly for sensing the parting of the polish rod from the stuffing box and preventing fluid flow through the stuffing box to the atmosphere. The device (200) includes a valve body (220) inserted between the stuffing box (70) and the production-tee (30), a valve (310, 320) which is selectively capable of being opened or closed in the valve body (220), means (230, 232) for actuating the valve (320), and a wear block (330) abutting against a polish rod (50) for sensing when the polish rod (50) parts from the stuffing box (70). When the polish rod (50) parts from the stuffing box (70), the lever (230) causes the valve (320) to rapidly close to prevent blowout of the fluid in the well bore (80). When the wear block (330) wears down to a predetermined amount, the lever (230) senses and effectuates a signaling system (240 ) to indicate that the wear block (330) should be replaced.
REFERENCES:
patent: 1463103 (1923-07-01), Thorsten
patent: 1572394 (1926-02-01), Krebs
patent: 1627945 (1927-05-01), Wigle
patent: 2124840 (1938-07-01), Wrigley
patent: 3144876 (1964-08-01), Frye
patent: 3468374 (1969-09-01), Reeves
patent: 3532163 (1970-10-01), Ecuer
patent: 4109713 (1978-08-01), Clow
Falk Joseph
Hummel Jack L.
Marathon Oil Company
Novosad Stephen J.
LandOfFree
Well blowout prevention device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Well blowout prevention device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well blowout prevention device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1866213