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논문 기본 정보

자료유형
학술저널
저자정보
김영배 (고등기술연구원) 정기진 (고등기술연구원) 정우현 (고등기술연구원) 정석우 (고등기술연구원)
저널정보
한국지열·수열에너지학회 한국지열·수열에너지학회논문집 한국지열·수열에너지학회논문집 제18권 제4호
발행연도
2022.12
수록면
12 - 21 (10page)

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초록· 키워드

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Steam assisted gravity drainage(SAGD) is a process that drills well in the underground oil sands layer, injects high-temperature steam, lowers the viscosity of buried bitumen, and recovers it to the ground. Recently, direct contact steam generator(DCSG) is being developed to maximize steam efficiency for SAGD process. The DCSG requires high technology to achieve pressurized combustion and steam generation in accordance with underground pressurized conditions. Therefore, it is necessary to develop a combustion technology that can control the heat load and exhaust gas composition. In this study, process analysis of high-pressurized DCSG was conducted to apply oxygen enrichment technology in which nitrogen of the air was partially removed for increasing steam production and reducing fuel consumption. As the process analysis conditions, methane as the fuel and normal air or oxygen enriched air as the oxidizing agent were applied to high-pressurized DCSG process model. A simple combustion reaction program was used to calculate the property variations for combustion temperature, steam ratio and residual heat in exhaust gas. As a major results, the steam production efficiency of DCSG using the pure oxygen was about 6% higher than that of the normal air due to the reducing nitrogen in the air. The results of this study will be used as operating data to test the demonstration device.

목차

Abstract
1. 서론
2. DCSG 효율평가를 위한 연소프로그램의 타당성 검증
3. DCSG 해석모델
4. 해석 결과 및 고찰
4. 결론
References

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