Method for producing viscous hydrocarbon using steam and carbon dioxide
First Claim
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1. A method for producing hydrocarbons from a reservoir, comprising:
- positioning a burner having a combustion chamber in a first well;
supplying a fuel, an oxidant, and one of water or steam from the surface to the burner in the first well;
supplying a viscosity-reducing gas from the surface to the reservoir in a conduit separate from the fuel;
igniting the fuel and the oxidant in the combustion chamber to generate heat and steam in the burner;
injecting the viscosity-reducing gas and steam into the reservoir to reduce the viscosity of and heat hydrocarbons within the reservoir; and
recovering hydrocarbons from the reservoir.
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Abstract
A method for producing hydrocarbons from a reservoir. The method includes positioning a burner having a combustion chamber in a first well, supplying a fuel, an oxidant, and one of water or steam from the surface to the burner in the first well, supplying a viscosity-reducing gas from the surface to the reservoir in a conduit separate from the fuel, igniting the fuel and the oxidant in the combustion chamber to generate heat and steam in the burner, injecting the viscosity-reducing gas and steam into the reservoir to reduce the viscosity of and heat hydrocarbons within the reservoir, and recovering hydrocarbons from the reservoir.
88 Citations
32 Claims
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1. A method for producing hydrocarbons from a reservoir, comprising:
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positioning a burner having a combustion chamber in a first well; supplying a fuel, an oxidant, and one of water or steam from the surface to the burner in the first well; supplying a viscosity-reducing gas from the surface to the reservoir in a conduit separate from the fuel; igniting the fuel and the oxidant in the combustion chamber to generate heat and steam in the burner; injecting the viscosity-reducing gas and steam into the reservoir to reduce the viscosity of and heat hydrocarbons within the reservoir; and recovering hydrocarbons from the reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for producing hydrocarbons from a reservoir, comprising:
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positioning a burner comprising a combustion chamber in a first well; supplying a fuel, an oxidant, and one of water or steam from the surface to the burner in the first well; supplying a viscosity-reducing gas from the surface to the reservoir in a conduit separate from the fuel; igniting the fuel and the oxidant in the combustion chamber to generate heat and steam in the burner; injecting the viscosity-reducing gas and steam into the reservoir to reduce the viscosity of and heat hydrocarbons within the reservoir; and recovering hydrocarbons from the reservoir through a second well that is spaced from or intersects the first well. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification