Relationship of Porosity and Volume Compression Coefficient of Solid Skeleton and Water in Artesian Well Aquifer
Ding Fenghe
Han Xiaolei
Ha Yuanyuan
Dai Yong
Liang Yin
Abstract：The study of porosity and rock compressibility etc has important application value in the evaluation of the elastic ca-pacity and dynamic geological reserves of the reservoir.Water level digital data of 8 wells provided by the National Earthquake Precursor Network Center are studied to explore the relationship of porosity and volume compression coefficient between solid skeleton and water in artesian well aquifer medium under undrained condition.The results show that there exists a power func-tion relation between the porosity and the solid skeleton volume compression coefficient and water volume compression coeffi-cient in the aquifer.In the first quadrant,each well aquifer solid skeleton volume compression coefficient increases with increas-ing porosity,whereas the volume compression coefficient of water decreases with the increase of porosity,with one of two quadratic polynomial relationships between the solid skeleton and water volume compression coefficient in the aquifer.The vol-ume compression coefficient of water in the aquifer is larger than that of the solid skeleton,and water is more easily com-pressed.In addition,the compression coefficient of limestone skeleton is relatively smaller than that of sandstone.
Keywords：well water levelartesian well-aquifer systemvolume compression coefficientporositygroundwater
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1248-1253 )