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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0188545 (2014-02-24) |
등록번호 | US-9784140 (2017-10-10) |
발명자 / 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 532 |
A method for generating steam for hydrocarbon production is provided. The method includes producing steam using heat from an exhaust stream from a gas turbine system. A water stream is condensed from combustion products in the exhaust stream, and the water stream is used as a make-up water for produ
A method for generating steam for hydrocarbon production is provided. The method includes producing steam using heat from an exhaust stream from a gas turbine system. A water stream is condensed from combustion products in the exhaust stream, and the water stream is used as a make-up water for production of the steam.
1. A method for generating steam for hydrocarbon production, comprising: substantially stoichiometrically combusting a compressed oxidant and a fuel in a combustion chamber in a gas turbine system in the combined cycle power plant, thereby generating an exhaust stream containing combustion products;
1. A method for generating steam for hydrocarbon production, comprising: substantially stoichiometrically combusting a compressed oxidant and a fuel in a combustion chamber in a gas turbine system in the combined cycle power plant, thereby generating an exhaust stream containing combustion products;producing steam using heat from the exhaust stream;injecting at least a portion of the steam into a hydrocarbon reservoir;obtaining hydrocarbons and reproduced water from the hydrocarbon reservoir using a thermal recovery process;condensing a water stream from the combustion products in the exhaust stream; andusing the water stream and at least a portion of the reproduced water as a make-up water for production of the steam. 2. The method of claim 1, comprising: recirculating at least a portion of the exhaust stream to the combustion chamber as a diluent for combustion;chilling the diluent prior to introduction into the combustion chamber to condense a second water stream;combining the water stream and the second water stream to form a combined water stream; andusing the combined stream and the at least a portion of the reproduced water as the make-up water. 3. The method of claim 2, comprising extracting a portion of the diluent to offset the amount of fuel and oxidant added. 4. The method of claim 3, comprising separating the extracted portion of diluent into a carbon dioxide rich stream and a carbon dioxide lean stream. 5. The method of claim 4, comprising injecting the carbon dioxide rich stream into a hydrocarbon reservoir for enhanced oil recovery. 6. The method of claim 4, comprising injecting the carbon dioxide rich stream into a subterranean formation for carbon sequestration. 7. The method of claim 4, comprising injecting the carbon dioxide lean stream into a hydrocarbon reservoir for pressure maintenance. 8. The method of claim 1, comprising using at least a second portion of the steam to drive a steam turbine. 9. The method of claim 8, wherein the steam turbine produces additional shaft power on a shaft of the gas turbine system. 10. The method of claim 8, wherein the steam turbine produces blowdown, and wherein the method comprises using the blowdown as additional make-up water for production of the steam. 11. The method of claim 1, wherein the thermal recovery process is a cyclic steam stimulation process. 12. The method of claim 1, wherein the thermal recovery process is a steam assisted gravity drainage process. 13. The method of claim 1, wherein the thermal recovery process is a Clark hot water extraction process. 14. The method of claim 1, comprising using at least a portion of the steam in a utility heating process, a process heating process, or a steam stripping process, or any combinations thereof. 15. The method of claim 1, comprising treating the water stream prior to using the water stream as part of the make-up water. 16. The method of claim 15, comprising adjusting the pH of the water stream to between about 7 and about 9 pH units. 17. The method of claim 15, comprising steam stripping the water stream to remove dissolved gases. 18. The method of claim 15, comprising treating the water stream with an oxygen scavenger. 19. The method of claim 1, comprising generating a high quality steam comprising 90 wt % or more water vapor and a low quality steam comprising less than 90 wt % water vapor. 20. The method of claim 19, comprising using the high quality steam to drive a steam turbine. 21. The method of claim 19, comprising: treating the reproduced water. 22. The method of claim 19, comprising using the low quality steam in the thermal recovery process. 23. A method for using exhaust from a combined cycle plant in hydrocarbon production, comprising: substantially stoichiometrically combusting a fuel and an oxidant in a gas turbine system in the combined cycle plant to produce an exhaust stream;producing steam using exhaust heat from the exhaust stream;injecting at least a portion of the steam into a hydrocarbon reservoir;obtaining hydrocarbons and reproduced water from the hydrocarbon reservoir using a thermal recovery process;condensing a water stream from the exhaust stream;using the water stream and at least a portion of the reproduced water as a make-up stream for the steam production; anddriving a steam turbine with at least a second portion of the steam. 24. The method of claim 23, wherein the portion of steam driving the steam turbine is adjusted based at least in part on a level of output power demanded from the combined cycle plant. 25. The method of claim 23, wherein the thermal recovery process is cyclic steam stimulation. 26. The method of claim 23, wherein the thermal recovery process is steam assisted gravity drainage. 27. The method of claim 23, comprising: producing a blowdown stream from the steam turbine; andproviding the blowdown stream as additional make-up feed water for the production of the steam. 28. The method of claim 23, comprising using the steam in a Clark hot water extraction system, a utility heating system, a process heating system, or a steam stripping system, or any combinations thereof. 29. A system for generating power and thermally recovering hydrocarbons from a reservoir, comprising: a gas turbine system configured to produce a hot exhaust stream as a byproduct of substantially stoichiometric combustion of a compressed oxidant and a fuel;a heat recovery steam generator (HRSG) configured to produce a steam stream using the hot exhaust stream, wherein the HRSG delivers at least a portion of the steam stream to the thermal recovery system and produces a condensate stream from the combustion products in the hot exhaust stream;a hydrocarbon thermal recovery system configured to use at least a portion of the steam stream in a thermal recovery process and produce hydrocarbons and reproduced water; anda feed system configured to use the condensate stream and at least a portion of the reproduced water as make-up water provided to the HRSG to generate the steam stream. 30. The system of claim 29, comprising at least one of: (a) a steam turbine configured to use at least a second portion of the steam stream to generate mechanical power cyclic steam stimulation system, wherein the steam turbine produces additional shaft power on a shaft of the gas turbine system;(b) an electrical generator driven by the mechanical power;(c) a steam assisted gravity drainage system;(d) a Clark hot water extraction system;(e) a water purification system for the condensate stream;(f) a steam stripper configured to decrease dissolved gases in the condensate stream;(g) a pH adjustment system configured to bring the pH of the condensate stream to between about 7 and about 9 pH units; and(h) a filtration system.
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