Blow-out protector and fire control system for petroleum explora

Details Blow-out protector and fire control system for petroleum explora Blow-out protector and fire control system for petroleum explora

1986-04-14

1987-10-06

Novosad, Stephen J.

Wells

Above ground apparatus

Releasable seal or cleaner disengaged by projection on inner...

166 84, 166 88, 166387, 166196, E21B 3303, E21B 3306

Patent

active

046976396

ABSTRACT:
A blow-out protector and fire control system is located in a rotating Kelly flange assembly and flange housing. The blow-out protector is based upon compressing a rubber Kelly bushing and seal positioned around a rotating Kelly by upward movement of a catch ring on the rotating Kelly. The catch ring forces a compressor ring positioned below the rubber bushing upward causing the rubber bushing to form a seal between the Kelly and the rotating Kelly flange assembly. The fire control system involves injecting an inert gas through an opening in the Kelly flange housing into the well casing, and removing high pressure fluid sequentially through the same opening. As an alternative, high pressure fluid can be removed from the well pipe simultaneously. The high pressure fluid is piped to a location remote from the well for storage or flaring.

REFERENCES:
patent: 3692106 (1972-09-01), Basham et al.
patent: 3840072 (1974-10-01), Hutchinson
patent: 4326584 (1982-04-01), Watkins
patent: 4440236 (1984-04-01), LeMoine

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