| DOI: | 10.1016/j.jcou.2017.03.019
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| Scopus记录号: | 2-s2.0-85017433332
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| 论文题名: | CO2-based heavy oil recovery processes for post-CHOPS reservoirs |
| 作者: | Haddad A.S.; Gates I.
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| 刊名: | Journal of CO2 Utilization
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| ISSN: | 22129820
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| 出版年: | 2017
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| 卷: | 19 | | 语种: | 英语
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| 英文关键词: | CO2 injection
; Cold production of heavy oil with sand
; Follow-up recovery processes
; Heavy oil
; Post-CHOPS
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| Scopus关键词: | Carbon dioxide
; Crude oil
; Fossil fuels
; Heavy oil production
; Oil fields
; Oil well flooding
; Petroleum reservoir engineering
; Petroleum reservoirs
; Recovery
; Thermal oil recovery
; Water
; Water injection
; Well flooding
; Appropriate designs
; Cold production
; Energy and emissions
; Enhanced oil recovery
; Heavy oil recovery process
; Heavy oil reservoirs
; Post-CHOPS
; Recovery process
; Enhanced recovery
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| 英文摘要: | Cold Heavy Oil Production with Sand (CHOPS) is currently the process of choice for recovery from unconsolidated solution-gas rich heavy oil reservoirs. Compared to waterflood and thermal recovery processes, primary processes such as CHOPS have relatively low energy and emission intensities; in other words, they can be considered as relatively ‘clean’ fossil fuel energy recovery processes. However, with recovery factors between 5 and 15% at the end of its economic life, there is a search for follow-up processes that yield additional oil from these reservoirs with continued low energy and emission intensities. One option is CO2-based enhanced oil recovery (EOR) processes - CO2 can lower oil viscosity and if some fraction of the injected CO2 is sequestered in the reservoir, then the process can be considered a CO2 storage process in addition to an oil follow-up recovery process. Here, we evaluate the energy return and CO2 sequestered in cyclic CO2 and cyclic CO2-hot water injection processes in a post-CHOPS heavy oil field. The results reveal that overall recovery factors can be raised through appropriate design of the CO2 follow-up process. Cyclic CO2 injection achieves an incremental 2.4% recovery factor (over four years of operation) with high energy return ratio whereas CO2-hot water processes achieve higher recovery factors with lower energy return ratios. In these processes, the amount of CO2 that remains sequestered in the reservoir is small, typically less than 5%. Thus, these EOR processes are not strong candidates for CO2 sequestration. © 2017 Elsevier Ltd. |
| 资助项目: | Petroleum Technology Research Centre
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/52737
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| Appears in Collections: | 影响、适应和脆弱性
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| Recommended Citation: | |
Haddad A.S.,Gates I.. CO2-based heavy oil recovery processes for post-CHOPS reservoirs[J]. Journal of CO2 Utilization,2017-01-01,19
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