TY - JOUR
T1 - Hydraulics of horizontal wells in fractured shallow aquifer systems
AU - Park, Eungyu
AU - Zhan, Hongbin
PY - 2003/9/25
Y1 - 2003/9/25
N2 - An analysis of groundwater hydraulic head in the vicinity of a horizontal well in fractured or porous aquifers considering confined, leaky confined, and water-table aquifer boundary conditions is presented. Solutions for hydraulic heads in both leaky confined and water table aquifers are provided. The fracture model used in this study is the standard double-porosity model. The aquitard storage is included in the formula. Solutions for the confined and unconfined conditions, fractured and porous conditions, wellbore storage, and skin effect are compared. Several findings of this study are, (1) the influence of wellbore storage and skin upon the drawdown for a fractured confined aquifer is similar to that for a porous confined aquifer, (2) aquitard storage affects the intermediate time the most by delaying the drawdown, and (3) there is a significant difference between the type curves of fractured and porous confined aquifers in most aquifer boundary conditions because of the contribution of matrix storage, and such a difference disappears at the later time.
AB - An analysis of groundwater hydraulic head in the vicinity of a horizontal well in fractured or porous aquifers considering confined, leaky confined, and water-table aquifer boundary conditions is presented. Solutions for hydraulic heads in both leaky confined and water table aquifers are provided. The fracture model used in this study is the standard double-porosity model. The aquitard storage is included in the formula. Solutions for the confined and unconfined conditions, fractured and porous conditions, wellbore storage, and skin effect are compared. Several findings of this study are, (1) the influence of wellbore storage and skin upon the drawdown for a fractured confined aquifer is similar to that for a porous confined aquifer, (2) aquitard storage affects the intermediate time the most by delaying the drawdown, and (3) there is a significant difference between the type curves of fractured and porous confined aquifers in most aquifer boundary conditions because of the contribution of matrix storage, and such a difference disappears at the later time.
KW - Fractured aquifer
KW - Horizontal well
KW - Leaky confined aquifer
KW - Skin effect
KW - Water table
KW - Wellbore storage
UR - http://www.scopus.com/inward/record.url?scp=0142022671&partnerID=8YFLogxK
U2 - 10.1016/S0022-1694(03)00206-3
DO - 10.1016/S0022-1694(03)00206-3
M3 - Article
AN - SCOPUS:0142022671
SN - 0022-1694
VL - 281
SP - 147
EP - 158
JO - Journal of Hydrology
JF - Journal of Hydrology
IS - 1-2
ER -