Table

Thickness (m), hydraulic conductivity (m/d) and storage coefficient (dimensionless) of aquifers and aquitards.

Pumping rate for aquifers. A zero pumping rate for aquifer implies the absence of well screen in this interval.

Rows white color – aquifers. Rows brick color  – aqutards.

Tooltips:

"Index" column – leaky factor (m) for aquifer (if pumping rate for aquifer more zero)

"m" column – total thickness from top of system

"k" column – transmissivity (m2/d) and hydraulic diffusivity (m2/d) of aquifer or aquitard

"S" column – specific storage (1/m) of aquifer or aquitard

"Configurator" frame

Number of aquifers (form 1 to 5) and boundary conditions on the top and the bottom of system

"t, day" text box

Time for which drawdown is calculated

"r, m" text box

Horizontal Distance from the pumping well to an observation well

"z, m" text box

Vertical distance form top of aquitard to observation point in this aquitard (from 0 m to thickness of aquitard)

"si, m" or "si', m"  text box

This field shows calculated drawdown in the selected aquifer or aquitard

List

Select the layer (aquifer or aquitard) in which calculated drawdown

"Boundaries" option

Setting boundary conditions

"I", "II" options at the top of the frame "Boundary conditions"

Semi-infinite system with boundary condition I kind or II kind

"I - I", "II - II", "I - II" options

Two boundaries. For strip, wedge-shaped and U-shaped system. For U-shaped system it is parallel boundaries

"Lp, m" text box

Horizontal distance from observation well to boundary

"Lw, m" text box

Horizontal distance from pumping well to boundary

"L, m" text box

Width of strip system or U-shaped system

"Wedge-shaped" option

Wedge-shaped system. Angle is selected in list "θ, degree"

"U-shaped" option

U-shaped system

"I", "II" options near with "U-shaped" option

Boundary conditions on the third boundary for U-shaped system

"Lp', m" text box

Horizontal distance from observation well to the second boundary of wedge-shaped system or the third boundary of U-shaped system. For wedge-shaped system it is distance calculated from r, Lw, Lwc и Lw'

"Lw', m" text box

Horizontal distance from pumping well to the second boundary of wedge-shaped system or the third boundary of U-shaped system

"θ, degree" list

List of angles: 1, 2, 3, 4, 5, 6, 9, 10, 15, 20, 30, 45 or 90 degrees. For mixed boundaries conditions (I - II) angles 4, 20 and 60 degrees are missing

"Storage" option

Сalculation takes into account wellbore capacity

"Skin" option

Сalculation takes into account pumping well skin-effect

"rw, m" text box

Pumping well radius

"rc, m" text box

Casing radius

"k_skin, m/day" text box

Hydraulic conductivity of pumping well skin

"m_skin, m" text box

Thickness of pumping well skin

"HP" button

For wedge-shaped system and U-shaped system show picture with plan

"Distribute discharge rate" frame

Automatically distribute pumping rate, specified in "Q" text box, for the selected aquifers in the list

n – number of aquifers with pumping well screen,

Q – total pumping rate ("Q" text box),

Ti – transmissivity of i-aquifer,

Tmax – maximum transmissivity of aquifer.