Unsteady-state
flow equations
1. Superposition principle:
2. Green’s function:
3. Green’s function:
where
Methods of analysis and parameters being estimated
Plot
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Method
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Parameters
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Comments
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straight
line
2)
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matching
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matching
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matching by
separate points
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matching
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matching by
separate points
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matching
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type line
1)
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matching
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type line
1)
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matching
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straight
line
3)
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matching
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matching
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straight
line
2)
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matching
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bisecting
line
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Analysis is
based either on superposition principle or on Green’s
function.
1) method is
applied for drawdown analysis only;
2) for
steady-state (the transmissivity value calculated using Green’s
function would be twice lower);
3) method is
applied for drawdown analysis only (the graph is plotted only for
the equation based on superposition principle)
Applying
superposition principle gives:
Applying Green’s
function gives:
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