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US 2020/0347707 A1Published application
Enhanced Oil Recovery with Geothermal Power Generation
AssigneeSigl-G, LLC
InventorsKenneth Bowdon, A. Judson Hill, David Rounds
Life of this patent
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Abstract
An enhanced oil recovery method in which carbon dioxide is injected into a well to pressure the well or add lift a production flow from the well recaptures the injected carbon dioxide for reinjection into the well for lift or into another well in a group of for pressuring the well or adding lift to the production flow from the well. Geothermal energy in the production stream can be converted to electrical power for use in the recapturing of the carbon dioxide or other operations at the well site.
Claims23
A method for enhancing oil recovery from a well, comprising:
- pressurizing a closed well by injecting a gas into the well;
- allowing the pressurized well to soak;
- opening the well to production flow;
- converting geothermal energy stored the production flow to electrical power;
- recapturing at least some of the gas injected into the well to pressurize the well from the production stream;
- and
- powering the recapturing of at least some of the gas with electrical power converted from geothermal energy stored in the production flow from the well or another well.
4 more elements
A method of enhancing oil recovery comprising:
- injecting into a first well in a group of two or more wells a gas to pressurize the well and allowing the well to soak;
- after soaking, opening the first well and separating from the production flow at least some of the gas injected into the well;
- reinjecting into a second well in the group of wells the gas injected into the first well and separated from the production flow from the first well.
Dependencies are inferred from the claim text.