Aquifer Loss given Drawdown Solution

STEP 0: Pre-Calculation Summary
Formula Used
Aquifer loss = Total Drawdown in Well-Head Loss in well
BQ = st-CQn
This formula uses 3 Variables
Variables Used
Aquifer loss - (Measured in Meter) - Aquifer loss is product of discharge and aquifer loss coefficient.
Total Drawdown in Well - (Measured in Meter) - The Total Drawdown in Well is defined as the reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test.
Head Loss in well - (Measured in Meter) - The Head Loss in well is essentially the difference between the head of the aquifer immediately outside and in the well a head inside because of all these losses.
STEP 1: Convert Input(s) to Base Unit
Total Drawdown in Well: 0.83 Meter --> 0.83 Meter No Conversion Required
Head Loss in well: 0.091 Meter --> 0.091 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
BQ = st-CQn --> 0.83-0.091
Evaluating ... ...
BQ = 0.739
STEP 3: Convert Result to Output's Unit
0.739 Meter --> No Conversion Required
FINAL ANSWER
0.739 Meter <-- Aquifer loss
(Calculation completed in 00.004 seconds)

Credits

Created by Suraj Kumar
Birsa Institute of Technology (BIT), Sindri
Suraj Kumar has created this Calculator and 2200+ more calculators!
Verified by Ishita Goyal
Meerut Institute of Engineering and Technology (MIET), Meerut
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7 Aquifer Loss Calculators

Coefficient of Permeability given Aquifer Loss Coefficient
Go Coefficient of Permeability = (log((Radius of Influence/Radius of Well in Eviron. Engin.),e))/(2*pi*Aquifer Loss Coefficient*Aquifer Thickness)
Aquifer Loss Coefficient
Go Aquifer Loss Coefficient = (log((Radius of Influence/Radius of Well in Eviron. Engin.),e))/(2*pi*Coefficient of Permeability*Aquifer Thickness)
Radius of Well given Aquifer Loss Coefficient
Go Radius of Well in Eviron. Engin. = Radius of Influence in Eviron. Engin./exp(Aquifer Loss Coefficient*2*pi*Coefficient of Permeability*Aquifer Thickness)
Aquifer Loss given Drawdown
Go Aquifer loss = Total Drawdown in Well-Head Loss in well
Drawdown given Well Loss
Go Total Drawdown in Well = Aquifer loss+Head Loss in well
Aquifer Loss given Aquifer Loss Coefficient
Go Aquifer loss = Aquifer Loss Coefficient*Discharge
Discharge given Aquifer Loss
Go Discharge = Aquifer loss/Aquifer Loss Coefficient

Aquifer Loss given Drawdown Formula

Aquifer loss = Total Drawdown in Well-Head Loss in well
BQ = st-CQn

What is Well Loss?

When water is pumped out of a well, the total drawdown caused includes not only that of the logarithmic drawdown curve at the well face, but also drawdown caused by flow through well screen and axial movement within the well. The latter drawdown is called well loss.

How to Calculate Aquifer Loss given Drawdown?

Aquifer Loss given Drawdown calculator uses Aquifer loss = Total Drawdown in Well-Head Loss in well to calculate the Aquifer loss, The Aquifer Loss given Drawdown is defined as the value of aquifer loss when we have prior information of other parameters used. Aquifer loss is denoted by BQ symbol.

How to calculate Aquifer Loss given Drawdown using this online calculator? To use this online calculator for Aquifer Loss given Drawdown, enter Total Drawdown in Well (st) & Head Loss in well (CQn) and hit the calculate button. Here is how the Aquifer Loss given Drawdown calculation can be explained with given input values -> 0.01 = 0.83-0.091.

FAQ

What is Aquifer Loss given Drawdown?
The Aquifer Loss given Drawdown is defined as the value of aquifer loss when we have prior information of other parameters used and is represented as BQ = st-CQn or Aquifer loss = Total Drawdown in Well-Head Loss in well. The Total Drawdown in Well is defined as the reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test & The Head Loss in well is essentially the difference between the head of the aquifer immediately outside and in the well a head inside because of all these losses.
How to calculate Aquifer Loss given Drawdown?
The Aquifer Loss given Drawdown is defined as the value of aquifer loss when we have prior information of other parameters used is calculated using Aquifer loss = Total Drawdown in Well-Head Loss in well. To calculate Aquifer Loss given Drawdown, you need Total Drawdown in Well (st) & Head Loss in well (CQn). With our tool, you need to enter the respective value for Total Drawdown in Well & Head Loss in well and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Aquifer loss?
In this formula, Aquifer loss uses Total Drawdown in Well & Head Loss in well. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Aquifer loss = Aquifer Loss Coefficient*Discharge
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