Non-cryogenic production of nitrogen for on-site injection in downhole drilling
DCFirst Claim
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1. A method for drilling for oil or gas or a geothermal well in which a compressed inert gas is delivered to a drilling region within a downhole, the improvement comprising:
- (a) removing at least a substantial portion of the oxygen contained within a feed stream of air at the site of said drilling to produce an inert rich gas and an oxygen enriched waste gas; and
(b) delivering the inert rich gas to the drilling region within the downhole.
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Abstract
There is disclosed a method for oil or gas drilling or the drilling of a geothermal well and the like in which a compressed inert gas, produced by the non-cryogenic separation of air is delivered to the drilling region of the downhole.
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9 Claims
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1. A method for drilling for oil or gas or a geothermal well in which a compressed inert gas is delivered to a drilling region within a downhole, the improvement comprising:
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(a) removing at least a substantial portion of the oxygen contained within a feed stream of air at the site of said drilling to produce an inert rich gas and an oxygen enriched waste gas; and (b) delivering the inert rich gas to the drilling region within the downhole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification