Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid spray
Patent
1999-03-26
1999-11-30
Dang, Hoang
Boring or penetrating the earth
With above-ground means for handling drilling fluid or cutting
Fluid spray
175207, 166 901, 169 69, E21B 2106
Patent
active
059925442
ABSTRACT:
In a well drilling system a fire suppression apparatus includes a pressure rated bell nipple or enclosure member mounted on the blowout preventer and including an elongated central passage opening at one end to an enlarged bore portion adjacent a restabbing flange. Diametrically opposed convergent nozzles open into the enlarged bore portion and are connected to a source of pressure water and/or a source of pressure fire extinguishing fluid by way of a manifold and respective remotely controllable shut off valves and check valves. The enclosure replaces a conventional bell nipple and provides an added measure of fire suppression protection in the event of uncontrolled flow of well fluids from the well. Branch conduit sections are connected to the main conduit section of the enclosure to provide a cuttings evacuation fluid flow line and a fill up or well fluid diversion line.
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