Pumping well in a vertical fracture
Assumptions:
✓aquifer is confined, isotropic, of infinite lateral extent;
✓fracture of a limited length has a height equal to the aquifer thickness;
✓pumping well fully penetrates the aquifer is in the center of the fracture;
✓observation well fully penetrates the aquifer;
✓flow towards the fracture is pseudoradial or linear (normal to fracture);
✓storage capacity of the fracture is not taken into account.
Well intersecting a vertical fracture. The figure above shows the cross-section, the figure below – 3D and plan view.
Pseudoradial flow towards fracture (left) and linear flow towards fracture.
Lp – horizontal distance from the observation well the fracture specified in the "Boundary" column of the "Well" editor.
Unsteady-state flow equations
1. Pseudoradial flow towards fracture
2. Linear flow towards fracture
Estimated parameters: transmissivity (T) and hydraulic diffusivity (a) of confined aquifer. The fracture length (Lf) is a supplementary parameter to be specified.