气候变化领域集成服务门户(CCPortal): Effects of variable injection rate on reservoir responses and implications for CO2 storage in saline aquifers

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DOI	10.1002/ghg.1888
	Effects of variable injection rate on reservoir responses and implications for CO2 storage in saline aquifers
	Li C.; Maggi F.; Zhang K.; Guo C.; Gan Y.; El-Zein A.; Pan Z.; Shen L.
发表日期	2019
ISSN	21523878
起始页码	652
结束页码	671
卷号	9 期号:4
英文摘要	Past reservoir simulations of carbon dioxide (CO2) storage in saline aquifers have shown that the injection procedure can influence CO2 storage efficiency and injectivity. To investigate the influence of injection rate and timing on reservoir dynamics and storage performance, scenarios of continuous and intermittent injections were devised for storing 1 million tonnes of CO2 per year for 30 years and were assessed through numerical simulations on saline aquifers constructed with real field data. Our results show that almost all the intermittent injections need higher injection pressure than the constant injection for the same targeted amount of CO2. Only one intermittent injection showed the potential to have a lower injection pressure than the constant injection. The injectivity for the constant injection consistently declines over the years, while the intermittent injections result in an injectivity above a reference value for some years, with the number of years that maintain the injectivity linearly increasing with the length of the injection break. The injectivity for an intermittent injection peaks a few years later after the injection starts. Intermittent injections improve the residual and solubility trapping by up to 15% only in the first few years of injection, but the differences in trapping efficiencies among all the injections are within a few percent in the long term. Therefore, the intermittent injections would be useful for a CO2 storage project to make the best use of a reservoir in 5–10 years under the injection pressure restrictions. Society of Chemical Industry and John Wiley & Sons, Ltd. Society of Chemical Industry and John Wiley & Sons, Ltd.
英文关键词	CO2 storage; injectivity; intermittent injection; saline aquifers; trapping efficiency
scopus关键词	Aquifers; Chemical industry; Digital storage; Efficiency; Hydrogeology; CO2 storage; Injectivity; Intermittent injection; Saline aquifers; Trapping efficiencies; Carbon dioxide; aquifer pollution; carbon dioxide; carbon emission; carbon sequestration; numerical model; solubility
来源期刊	Greenhouse Gases: Science and Technology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176379
作者单位	School of Civil Engineering, The University of SydneyNSW, Australia; Institute of Groundwater and Earth Sciences, Jinan UniversityGuangzhou, China; Chinese Academy of Geological SciencesBeijing, China; CSIRO Energy Business Unit, Clayton South, VIC, Australia
推荐引用方式 GB/T 7714	Li C.,Maggi F.,Zhang K.,et al. Effects of variable injection rate on reservoir responses and implications for CO2 storage in saline aquifers[J],2019,9(4).
APA	Li C..,Maggi F..,Zhang K..,Guo C..,Gan Y..,...&Shen L..(2019).Effects of variable injection rate on reservoir responses and implications for CO2 storage in saline aquifers.Greenhouse Gases: Science and Technology,9(4).
MLA	Li C.,et al."Effects of variable injection rate on reservoir responses and implications for CO2 storage in saline aquifers".Greenhouse Gases: Science and Technology 9.4(2019).