Title:

Estimation of Fracture Porosity and Permeability Using Radon as a Tracer

Authors:

T. KUO

Key Words:

Fracture porosity; Permeability; Radon; Strain; Earthquake

Conference:

Stanford Geothermal Workshop

Year:

2019

Session:

Tracers

Language:

English

Paper Number:

Kuo3

File Size:

880 KB

View File:

Abstract:

A quantitative method using the precursory radon decline as a tracer to estimate fracture porosity and permeability is presented with the help of a case study. In an undrained fractured aquifer, the in-situ volatilization of dissolved radon could cause a decline of groundwater radon precursory to an earthquake. Based on the mechanisms of in-situ radon volatilization, mathematical models have been developed to correlate the radon decline with fracture porosity and permeability in the aquifer rocks.


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