Method and assembly for controlling blow-outs in oil wells

摘要: The disclosure herein describes a new method of sealing off wells, such as those producing oil and gas in the event blowout; consists tapping well-head with branch line connected to supply liquid carbon dioxide or nitrogen under pressure. introduction CO2 into high-pressure rig-pipe has double purpose; first, if introduced sufficient quantity, it freezes pipe and, secondly, being mixed flammable combustible fluid, renders fluid inert, i.e., non-flammable noncombustible.