Oil well blow-out preventer and sealing device

Details Oil well blow-out preventer and sealing device Oil well blow-out preventer and sealing device

1996-11-12

1998-05-05

Fox, John

Fluid handling

Systems

Flow path with serial valves and/or closures

251 13, E21B 3306

Patent

active

057462496

ABSTRACT:
An oil well blow-out preventer and sealing device for use on an oil well equipped with a well casing, a wellhead, a production tubing string, and a pump rod receivable within the production tubing string. The blow-out preventer and sealing device comprises a central housing member that includes a flow passageway and a pump rod passageway, blow-out prevention means and pump rod passageway sealing means, both contained within the central housing member. The flow passageway is in communication with the production tubing string and provides a means for fluid to be removed from the well while the pump rod passageway provides a means for entry of the pump rod into the well. The blow-out prevention means includes a pair of rams that are adjustable to seal around the pump rod to prevent the accidental loss or spillage of oil or fluid from the well. The pump rod passageway sealing means prevents the spillage of fluids from the oil well upon the breakage or removal of the pump rod from said pump rod passageway.

REFERENCES:
patent: 1967417 (1934-07-01), Martin
patent: 2375432 (1945-05-01), Miller et al.

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