Oil well blow-out preventer

Details Oil well blow-out preventer Oil well blow-out preventer

1997-04-04

1999-03-02

Suchfield, George

Wells

Above ground apparatus

With assembly or disassembly means

166 781, 166 801, 166 843, 166 951, 166 971, 251 13, 13761419, E21B 3306

Patent

active

058758410

ABSTRACT:
An oil well blow-out preventer 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 comprises a central housing member that includes a flow passageway and a pump rod passageway and a blow-out preventer contained within the central housing member. The flow passageway is in communication with the production tubing string and provides a mechanism for fluid to be removed from the well while the pump rod passageway provides an opening for entry of the pump rod into the well. The blow-out preventer 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 device may also include an integrated pump rod passageway sealing device, to prevent the spillage of fluids from the oil well upon the breakage or removal of the pump rod, and an integrated production tubing string rotator.

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