GLOSSARY

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q(t)=q_0 \cdot \exp \left[ -D_0 \cdot \left( t+ a \cdot t^nt^{-n}\right)  \right]



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D(t) = D_0 \cdot ( 1 + a\cdot (1-n+1) \cdot t^nt^{-n} )


where

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bodyq_0 = q(t=0)

Initial production rate of a well (or groups of wells)

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body--uriencoded--D_0 %7B\infty%7D > 0

initial the trend value of Production Decrement  at infinite time

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bodya

model parameter characterizing deceleration of production decline

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bodyn > 0

model parameter characterizing production decline

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body--uriencoded--\displaystyle D(t) =- \frac%7Bdq%7D%7BdQ%7D

Production Decrement (the higher the

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bodyD
the stronger is decline)

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body--uriencoded--\displaystyle Q(t)=\int_0%5et q(t) dt

cumulative production

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