TY  - JOUR
AU  - Wang, W.
AU  - Liang, X.
AU  - Niu, Q.
AU  - Wang, Q.
AU  - Zhuo, J.
AU  - Su, X.
AU  - Zhou, G.
AU  - Zhao, L.
AU  - Yuan, W.
AU  - Chang, J.
AU  - Zheng, Y.
AU  - Pan, J.
AU  - Wang, Z.
AU  - Ji, Z.
PY  - 2023//
TI  - Reformability evaluation of blasting-enhanced permeability in in situ leaching mining of low-permeability sandstone-type uranium deposits
JO  - Nuclear Engineering and Technology
SP  - 2773
EP  - 2784
VL  - 55
IS  - 8
KW  - Analytic hierarchy process-entropy method
KW  - Fuzzy mathematics method
KW  - Mechanical property
KW  - Mineral composition
KW  - Pore structure
KW  - Split Hopkinson pressure bar
N2  - 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.
SN  - 1738-5733
UR  - https://www.sciencedirect.com/science/article/pii/S1738573323001432
N1  - exported from refbase (http://www.uhydro.de/base/show.php?record=194), last updated on Fri, 26 Jan 2024 13:19:04 +0100
ID  - Wang_etal2023
ER  -