气候变化领域集成服务门户(CCPortal): Machine-learning predictions of solubility and residual trapping indexes of carbon dioxide from global geological storage sites

CCPortal

DOI	10.1016/j.eswa.2023.119796
	Machine-learning predictions of solubility and residual trapping indexes of carbon dioxide from global geological storage sites
	Davoodi, Shadfar; Thanh, Hung Vo; Wood, David A.; Mehrad, Mohammad; Rukavishnikov, Valeriy S.; Dai, Zhenxue
发表日期	2023
ISSN	0957-4174
EISSN	1873-6793
卷号	222
英文摘要	Ongoing anthropogenic carbon dioxide (CO2) emissions to the atmosphere cause severe air pollution that leads to complex changes in the climate, which pose threats to human life and ecosystems more generally. Geological CO2 storage (GCS) offers a promising solution to overcome this critical environmental issue by removing some of the CO2 emissions. The performance of GCS projects depends directly on the solubility and residual trapping effi-ciency of CO2 in a saline aquifer. This study models the solubility trapping index (STI) and residual trapping index (RTI) of CO2 in saline aquifers by applying four robust machine learning (ML) and deep learning (DL) algorithms. Extreme learning machine (ELM), least square support vector machine (LSSVM), general regression neural network (GRNN), and convolutional neural network (CNN) are applied to 6811 compiled simulation records from published studies to provide accurate STI and RTI predictions. Employing different statistical error metrics coupled with supplementary evaluations, involving score and robustness analyses, the prediction ac-curacy of the models proposed is comparatively assessed. The findings of the study revealed that the LSSVM model delivers the lowest RMSE values: 0.0043 (STI) and 0.0105 (RTI) with few outlying predictions. Presenting the highest STI and RTI prediction scores the LSSVM is distinguished as the most credible model among all the four models studied. The models consider eight input variables, of which the time elapsed and injection rate displays the strongest correlations with STI and RTI, respectively. The results suggest that the proposed LSSVM model is best suited for monitoring CO2 sequestration efficiency from the data variables considered. Applying such models avoids time-consuming complex simulations and offers the potential to generate fast and reliable assessments of GCS project feasibility. Accurate modeling of CO2 storage trapping indexes guarantees successful geological CO2 storage operation, which is, in fact, the cornerstone of properly controlling and managing environmentally polluting gases.
英文关键词	Machine learning; Geological carbon dioxide storage; Solubility trapping index; Residual trapping index; Least square support vector machine
语种	英语
WOS研究方向	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic ; Operations Research & Management Science
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000955613200001
来源期刊	EXPERT SYSTEMS WITH APPLICATIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281579
作者单位	Tomsk Polytechnic University; Van Lang University; Van Lang University; Jilin University
推荐引用方式 GB/T 7714	Davoodi, Shadfar,Thanh, Hung Vo,Wood, David A.,et al. Machine-learning predictions of solubility and residual trapping indexes of carbon dioxide from global geological storage sites[J],2023,222.
APA	Davoodi, Shadfar,Thanh, Hung Vo,Wood, David A.,Mehrad, Mohammad,Rukavishnikov, Valeriy S.,&Dai, Zhenxue.(2023).Machine-learning predictions of solubility and residual trapping indexes of carbon dioxide from global geological storage sites.EXPERT SYSTEMS WITH APPLICATIONS,222.
MLA	Davoodi, Shadfar,et al."Machine-learning predictions of solubility and residual trapping indexes of carbon dioxide from global geological storage sites".EXPERT SYSTEMS WITH APPLICATIONS 222(2023).