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| Exponential | Harmonic | Hyperbolic | Power Loss |
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| b = 1 | b = 0 | 0 < b < 1 | | LaTeX Math Inline |
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| body | D=D_{\infty} + \frac{t^{n-1}}{\tau^{n}} |
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| LaTeX Math Block |
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| q(t)=q_{i} \exp \left( -D \, t \right) |
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| q(t)=\frac{q_{i}}{1+D \, t} |
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| q(t)=q_{i} \cdot \left( 1+b \cdot D \cdot t \right)^{-1/b} |
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| q(t)=q_{i} \exp \left( -D_{\infty}t- \left( t/\tau \right)^{n} \right) |
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| Q(t)=\frac{q_{i}-q(t)}{D} |
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| Q(t)=\frac{q_{i}}{D} \, \ln \left[ (\frac{q_{i}}{q(t)}) \right] |
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| LaTeX Math Block |
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| Q(t)=\frac{q_{i}}{D \, (1-b)}( \, \left[ q_{i}^{1-b}-q(t)^{1-b}) \right]
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Exponential decline has a clear physical meaning of pseudo=-steady state production with finite drainage volume.
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