Fracture conductivity during bilinear flow

Input(s)

Q: Flow Rate (STB/day)

B: Formation Volume Factor (bbl/STB)

μ\mu: Viscosity (cP)

mbfm_{b f}: Slope of Bilinear Flow during Build-up Test (psi/cycle)

h: Thickness (ft)

\emptyset: Porosity (fraction)

ctc_{t}: Total Compressibility (1/psi)

k: Permeability (mD)(\mathrm{mD})

Output(s)

FCF_{C}: Fracture Conductivity (mDft)(\mathrm{mD} \mathrm{ft})

Formula(s)

FC=(44.1QμBmbfh(ϕμctk)0.25)2F_{C}=\left(\frac{44.1 * Q * \mu * B}{m_{b f} * h *\left(\phi * \mu * c_{t} * k\right)^{0.25}}\right)^{2}

Reference(s)

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 1, Page: 95.


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