An insight into CO2 sequestration and EGR in Longmaxi and Niutitang shale formations via experimental analysis
文献类型：期刊论文
| 作者 | Ukaomah, Chima Finnian; Sun, Mengdi; Pan, Zhejun; Ostadhassan, Mehdi; Liu, Bo; Xu, Yanran; Madaki, Agwom Istifanus; Umeobi, Happiness Ijeoma; Aminu, Mohammed Dahiru; Yang, Baolin |
| 刊名 | FUEL
 |
| 出版日期 | 2022-09-15 |
| 卷号 | 324 |
| ISSN号 | 0016-2361 |
| 关键词 | CO2 sequestration Methane adsorption Pore structure Longmaxi Shale Niutitang Shale |
| 英文摘要 | In the global effort toward climate change mitigation, geologic storage of CO2 in shale plays is becoming critical while it can improve production from these reservoirs. In this study, the gas storage capacity and CO2 sequestration suitability of the Longmaxi and Niutitang shale gas reservoirs is investigated and compared via XRD analysis, programmed pyrolysis, low pressure N-2 and CO2 adsorption, high pressure CH4 adsorption, and MICP analysis. Results showed that clay and TOC controls on micropore heterogeneity and connectivity happens only within the Longmaxi Formation. Furthermore, both components play a role in the adsorbed quantities of gas in the formation which revealing a higher storage capacity in mesopore-macropores. This was verified by a positive correlation between adsorbed volume within the mesopore-macropore space. The Longmaxi Formation was also found to own better pore connectivity and PSD homogeneity of mesopore-macropores, indicating easier pathways for CO2 movement channels within the pore network. Furthermore, the samples from the Longmaxi exhibited a positive relationship between adsorbed volume with the CO2 breakthrough pressure and median pore diameter, alike between the mesopore-macropore volume and CO2 breakthrough pressure. This means, the injected CO2 will displace adsorbed methane within the mesopore-macropore and will be adsorbed and stored in such pores. Overall, superiority of the Longmaxi shale over the Niutitang for CO2 storage and EGR would be significant for future operations in similar shale gas reservoirs in China and around the globe. |
| 学科主题 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000861450900003 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35554]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Northeast Petroleum University; 2.China University of Geosciences; University of Kiel; 3.Ferdowsi University Mashhad; 4.University of Jos; Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Ukaomah, Chima Finnian,Sun, Mengdi,Pan, Zhejun,et al. An insight into CO2 sequestration and EGR in Longmaxi and Niutitang shale formations via experimental analysis[J]. FUEL,2022,324. |
| APA | Ukaomah, Chima Finnian.,Sun, Mengdi.,Pan, Zhejun.,Ostadhassan, Mehdi.,Liu, Bo.,...&Yang, Baolin.(2022).An insight into CO2 sequestration and EGR in Longmaxi and Niutitang shale formations via experimental analysis.FUEL,324. |
| MLA | Ukaomah, Chima Finnian,et al."An insight into CO2 sequestration and EGR in Longmaxi and Niutitang shale formations via experimental analysis".FUEL 324(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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