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Reservoir EngineeringReserves and Recovery

Modified Hyperbolic Decline Rate

q(t)=qi(1+bDith)−1/b×e−Dt(t−th)th=min⁡(t,ts)ts=Di−DtbDiDt\begin{aligned}q(t)&=q_i(1+bD_it_h)^{-1/b}\\&\quad\times e^{-D_t(t-t_h)}\\t_h&=\min(t,t_s)\\t_s&=\frac{D_i-D_t}{bD_iD_t}\end{aligned}

Tabular solver

Run the same equation across multiple cases and compare results in one table.

Caseq_iSTB/dayD_i1/dayD_t1/daybdimensionlesstdayResultAction
1Pending
2Pending
3Pending