Reformability evaluation of blasting-enhanced permeability in in situ leaching mining of low-permeability sandstone-type uranium deposits

Wei Wang; Xuanyu Liang; Qinghe Niu; Qizhi Wang; Jinyi Zhuo; Xuebin Su; Genmao Zhou; Lixin Zhao; Wei Yuan; Jiangfang Chang; Yongxiang Zheng; Jienan Pan; Zhenzhi Wang; Zhongmin Ji

Nuclear Engineering and Technology (Aug 2023)

Reformability evaluation of blasting-enhanced permeability in in situ leaching mining of low-permeability sandstone-type uranium deposits

Wei Wang,
Xuanyu Liang,
Qinghe Niu,
Qizhi Wang,
Jinyi Zhuo,
Xuebin Su,
Genmao Zhou,
Lixin Zhao,
Wei Yuan,
Jiangfang Chang,
Yongxiang Zheng,
Jienan Pan,
Zhenzhi Wang,
Zhongmin Ji

Affiliations

Wei Wang: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China
Xuanyu Liang: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China
Qinghe Niu: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China; Corresponding author. Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China.
Qizhi Wang: Innovation Center of Disaster Prevention and Mitigation Technology for Geotechnical and Structural Systems of Hebei Province (Preparation), Shijiazhuang, 050018, China; Corresponding author. School of Civil Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
Jinyi Zhuo: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China
Xuebin Su: Department of In Situ Leaching Technology, Beijing Research Institute of Chemical Engineering and Metallurgy, Tongzhou District, Beijing, 101149, China
Genmao Zhou: Department of In Situ Leaching Technology, Beijing Research Institute of Chemical Engineering and Metallurgy, Tongzhou District, Beijing, 101149, China
Lixin Zhao: Department of In Situ Leaching Technology, Beijing Research Institute of Chemical Engineering and Metallurgy, Tongzhou District, Beijing, 101149, China
Wei Yuan: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China
Jiangfang Chang: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China
Yongxiang Zheng: Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang, 050043, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China; Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines, Shijiazhuang, 050043, China
Jienan Pan: School of Resources & Environment, Henan Polytechnic University, Jiaozuo, 454000, China
Zhenzhi Wang: School of Resources & Environment, Henan Polytechnic University, Jiaozuo, 454000, China
Zhongmin Ji: School of Resources & Environment, Henan Polytechnic University, Jiaozuo, 454000, China; School of Civil Engineering, Zhengzhou University of Technology, Zhengzhou, 450044, China

Journal volume & issue: Vol. 55, no. 8
pp. 2773 – 2784

Abstract

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It is essential to evaluate the blasting-enhanced permeability (BEP) feasibility of a low-permeability sandstone-type uranium deposit. In this work, the mineral composition, reservoir physical properties and rock mechanical properties of samples from sandstone-type uranium deposits were first measured. Then, the reformability evaluation method was established by the analytic hierarchy process-entropy weight method (AHP-EWM) and the fuzzy mathematics method. Finally, evaluation results were verified by the split Hopkinson Pressure Bar (SHPB) experiment and permeability test. Results show that medium sandstone, argillaceous sandstone and siltstone exhibit excellent reformability, followed by coarse sandstone and fine sandstone, while the reformability of sandy mudstone is poor and is not able to accept BEP reservoir stimulation. The permeability improvement and the distribution of damage fractures before and after the SHPB experiment confirm the correctness of evaluation results. This research provides a reformability evaluation method for the BEP of the low-permeability sandstone-type uranium deposit, which contributes to the selection of the appropriate regional and stratigraphic horizon of the BEP and the enhanced ISL of the low-permeability sandstone-type uranium deposit.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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