Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8127065 | Journal of Petroleum Science and Engineering | 2014 | 5 Pages |
Abstract
In this paper, a quantitative method using the precursory radon decline as a tracer to estimate fracture porosity is presented with the help of a case study. In a fractured confined aquifer of limited recharge, the in-situ volatilization of dissolved radon could cause a decline of radon in groundwater precursory to an earthquake. Based on the mechanisms of in-situ radon volatilization and rock-dilatancy, a mathematical model has been developed to correlate the radon decline with fracture porosity and volumetric strain change in the aquifer rocks.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
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Authors
T. Kuo, F. Tsunomori,