Well Loss for Total Drawdown Calculator

✖Total Drawdown is 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.ⓘ Total Drawdown [s_t]			+10% -10%
✖Change in Drawdown in the Aquifer is a term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow.ⓘ Change in Drawdown [s]			+10% -10%

✖Well loss is defined as the head loss in well.ⓘ Well Loss for Total Drawdown [CQⁿ]

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Formula

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Well Loss for Total Drawdown

Formula

`"CQ"^{"n"} = "s"_{"t"}-"s"`

Example

`"5m"="5.1m"-"0.10m"`

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Well Loss for Total Drawdown Solution

STEP 0: Pre-Calculation Summary

Formula Used

Well loss = Total Drawdown-Change in Drawdown
CQⁿ = s_t-s
This formula uses 3 Variables

Variables Used

Well loss - (Measured in Meter) - Well loss is defined as the head loss in well.
Total Drawdown - (Measured in Meter) - Total Drawdown is 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.
Change in Drawdown - (Measured in Meter) - Change in Drawdown in the Aquifer is a term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow.

STEP 1: Convert Input(s) to Base Unit

Total Drawdown: 5.1 Meter --> 5.1 Meter No Conversion Required
Change in Drawdown: 0.1 Meter --> 0.1 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

CQⁿ = s_t-s --> 5.1-0.1

Evaluating ... ...

CQⁿ = 5

STEP 3: Convert Result to Output's Unit

5 Meter --> No Conversion Required

FINAL ANSWER

5 Meter <-- Well loss

(Calculation completed in 00.004 seconds)

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 2000+ more calculators!

Verified by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

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< 5 Single-Well Tests Calculators

Drawdown in aquifer caused by pumping at any point in aquifer

Go Possible Drawdown in Confined Aquifer = Pumping Rate*Time Period/(Transmissivity*Storage Coefficient*Distance from Pumping Well^2)

Total Drawdown in Pumping Well expressed given Factors related to Hydraulic Characteristics

Go Total Drawdown = Factors related to Hydraulic Characteristics*Pumping Rate+(Factors related to Characteristics of the Well*Pumping Rate^2)

Drawdown in aquifer for total drawdown

Go Change in Drawdown = Total Drawdown-Well loss

Total Drawdown in Pumping Well

Go Total Drawdown = Change in Drawdown+Well loss

Well Loss for Total Drawdown

Go Well loss = Total Drawdown-Change in Drawdown

Well Loss for Total Drawdown Formula

Well loss = Total Drawdown-Change in Drawdown
CQⁿ = s_t-s

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 Well Loss for Total Drawdown?

Well Loss for Total Drawdown calculator uses Well loss = Total Drawdown-Change in Drawdown to calculate the Well loss, The Well Loss for Total Drawdown is the drawdown caused by flow through well screen and axial movement within the well. Well loss is denoted by CQⁿ symbol.

How to calculate Well Loss for Total Drawdown using this online calculator? To use this online calculator for Well Loss for Total Drawdown, enter Total Drawdown (s_t) & Change in Drawdown (s) and hit the calculate button. Here is how the Well Loss for Total Drawdown calculation can be explained with given input values -> 5 = 5.1-0.1.

FAQ

What is Well Loss for Total Drawdown?

The Well Loss for Total Drawdown is the drawdown caused by flow through well screen and axial movement within the well and is represented as CQⁿ = s_t-s or Well loss = Total Drawdown-Change in Drawdown. Total Drawdown is 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 & Change in Drawdown in the Aquifer is a term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow.

How to calculate Well Loss for Total Drawdown?

The Well Loss for Total Drawdown is the drawdown caused by flow through well screen and axial movement within the well is calculated using Well loss = Total Drawdown-Change in Drawdown. To calculate Well Loss for Total Drawdown, you need Total Drawdown (s_t) & Change in Drawdown (s). With our tool, you need to enter the respective value for Total Drawdown & Change in Drawdown and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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