Method of direct steam generation using an oxyfuel combustor
First Claim
1. A method for direct steam and CO2 mixed gas generation and utilization, including the steps of:
- providing a gas generator having a combustion chamber, an oxygen inlet leading into the combustion chamber, a fuel inlet leading into the combustion chamber, a plurality of water inlets leading into the gas generator and a steam and CO2 mixture outlet from the combustion chamber;
configuring the gas generator to include multiple adjacent chambers with separate water inlets passing into the gas generator between the adjacent chambers, such that temperatures in the adjacent chambers are progressively lower as distance from the combustion chamber increases;
coupling the steam and CO2 mixture outlet of the gas generator to an inlet of a steam and CO2 utilizing processor;
configuring the processor to be in the form of a steam assisted gravity drain site including a hydrocarbon containing subterranean space and a well extending into the subterranean space, the well coupled to the steam and CO2 mixture outlet of the gas generator;
recirculating at least a portion of water and hydrocarbons exiting from a drain of the steam assisted gravity drain site to the water inlets of the gas generator; and
combusting at least a portion of the hydrocarbons contained within the water within the gas generator.
2 Assignments
0 Petitions
Accused Products
Abstract
A gas generator is provided with a combustion chamber into which oxygen and a hydrogen containing fuel are directed for combustion therein. The gas generator also includes water inlets and an outlet for a steam and CO2 mixture generated within the gas generator. The steam and CO2 mixture can be used for various different processes, with some such processes resulting in recirculation of water from the processor back to the water inlets of the gas generator. In one process a hydrocarbon containing subterranean space is accessed by a well and the steam and CO2 mixture is directed into the well to enhance removability of hydrocarbons within the subterranean space. Fluids are then removed from the subterranean space include hydrocarbons and water, with a portion of the hydrocarbons then removed in a separator/recovery step. The resulting hydrocarbon removal system can operate with no polluting emissions and with no water requirements.
12 Citations
6 Claims
-
1. A method for direct steam and CO2 mixed gas generation and utilization, including the steps of:
-
providing a gas generator having a combustion chamber, an oxygen inlet leading into the combustion chamber, a fuel inlet leading into the combustion chamber, a plurality of water inlets leading into the gas generator and a steam and CO2 mixture outlet from the combustion chamber; configuring the gas generator to include multiple adjacent chambers with separate water inlets passing into the gas generator between the adjacent chambers, such that temperatures in the adjacent chambers are progressively lower as distance from the combustion chamber increases; coupling the steam and CO2 mixture outlet of the gas generator to an inlet of a steam and CO2 utilizing processor; configuring the processor to be in the form of a steam assisted gravity drain site including a hydrocarbon containing subterranean space and a well extending into the subterranean space, the well coupled to the steam and CO2 mixture outlet of the gas generator; recirculating at least a portion of water and hydrocarbons exiting from a drain of the steam assisted gravity drain site to the water inlets of the gas generator; and combusting at least a portion of the hydrocarbons contained within the water within the gas generator. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification