Wells – Processes – Heating – cooling or insulating
Patent
1982-07-14
1984-06-26
Suchfield, George A.
Wells
Processes
Heating, cooling or insulating
166 57, 166 64, 166 75R, 166308, E21B 4324, E21B 4326
Patent
active
044560699
ABSTRACT:
Process and apparatus in which a hydrocarbon-bearing well formation, penetrated by a borehole, is treated with apparatus located outside the well by injecting gases into the well to elevate the pressure and temperature within the well formation so as to stimulate the formation through the effects of thermal stress and high pressure gas flow. The apparatus includes a gas generator of the type in which a reactant, such as hydrogen peroxide, is decomposed by a catalyst to form high temperature decomposition gases, such as steam and oxygen, and an air compressor for injecting compressed air into the well to aid in raising the pressure within the well formation so as to stimulate the formation, thereby increasing the permeability of the formation and the subsequent flow of fluids from the formation into the well after stimulation.
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