Research of in-situ hydraulic test method by using double packer equipment |
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| Authors: | JI Rui-li ZHANG Ming SU Rui GUO Yong-hai ZHOU Zhi-chao LI Jie-biao |
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| Affiliation: | 1Beijing Research Institute of Uranium Geology, CNNC Key Laboratory on Geological Disposal of High-level Radioactive Waste, Beijing 100029, China. |
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| Abstract: | Double packer equipment for hydraulic test can be used to measure pressure of test zone directly, and it is frequently used to perform many kinds of hydraulic tests and take groundwater sample from borehole. The test method of this equipment mainly includes the test design, implementation, interpretation and synthetic analysis. By adopting the double packer equipment for hydraulic test, the parameter distribution of rock permeability along borehole can be acquired, as well as the connectivity, water conductivity and water bearing capacity of the disclosed structure and the chemical characteristics of the deep groundwater. It is a necessary method for the research and evaluation of the complex hypotonicity terrace site selection under geological conditions. This method is not only suitable for the geological disposal of high level radioactive waste, but also can be used in the site selection of underground facilities such as storage of petroleum and carbon dioxide. Meanwhile, it has a good application prospect in other hydrogeological investigation fields. |
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| Keywords: | Lower permeability rock Double packer equipment Borehole In-situ test method |
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