[1]WEI Jianmin,HAN Xiaolei,LI Bin,et al.Time Series Analysis of Porosity and Permeability Coefficients Based on Digital Water Level in Sichuan and Yunnan Region[J].Journal of Seismological Research,2017,40(03):449-457.
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Time Series Analysis of Porosity and Permeability Coefficients Based on Digital Water Level in Sichuan and Yunnan Region
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
40
Number of periods:
2017 03
Page number:
449-457
Column:
自投稿专栏
Public date:
2017-07-20
- Title:
- Time Series Analysis of Porosity and Permeability Coefficients Based on Digital Water Level in Sichuan and Yunnan Region
- Keywords:
- digital water level; porosity; permeability coefficient; time series characteristics; Sichuan and Yunnan region
- CLC:
- P315.723
- DOI:
- -
- Abstract:
- Using the pressure coefficient and the wave tide factor of the 12 wells of the Sichuan and Yunnan area,the permeability coefficient and porosity of each well are obtained under undrained condition.Quantitative analysis of the time series variation characteristics of these parameters is achieved.The results show that the porosity and permeability coefficient of each well have obvious anomalies before strong earthquakes,and the porosity and permeability coefficient have better synchronization,showing the regional tectonic stress changes.During the porosity and pore pressure change caused by the aquifer stress state change process,when the aquifer medium pressure deforms and pore pressure increase,the porosity and permeability coefficients reduce equally,and vice versa.
- References:
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Last Update:
2017-07-20