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Naturally Fractured Reservoirs Equations

Browse 18 naturally fractured reservoirs petroleum engineering equations with formulas, inputs, outputs, units, and sources.

Naturally Fractured Reservoirs equations group related upstream petroleum engineering formulas by workflow so engineers can find the right calculation faster.

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Geomechanics and FracturingNaturally Fractured Reservoirs

Areal Fracture Intensity from Trace Length

P_{21}=\frac{L_t}{A_s}

Geomechanics and FracturingNaturally Fractured Reservoirs

Average Fracture Spacing from Linear Intensity

S_f=\frac{1}{P_{10}}

Geomechanics and FracturingNaturally Fractured Reservoirs

Cubic Matrix Block Interporosity Flow Coefficient

\lambda=\frac{60}{L_m^2}r_w^2\frac{k_m}{k_f}

Geomechanics and FracturingNaturally Fractured Reservoirs

Fracture Permeability from Hydraulic Aperture Cubic Law

k_f=\frac{b_h^2}{12}

Geomechanics and FracturingNaturally Fractured Reservoirs

Fracture Porosity from Aperture and Volumetric Intensity

\phi_f=b_fP_{32}

Geomechanics and FracturingNaturally Fractured Reservoirs

Fracture Storativity

\omega = \frac{\phi_f h_f c_{tf}}{\phi_f h_f c_{tf} + \phi_m h_m c_{tm}}

Geomechanics and FracturingNaturally Fractured Reservoirs

Kazemi Rectangular Matrix-Block Shape Factor

\alpha=4\left(\frac{1}{L_{mx}^2}+\frac{1}{L_{my}^2}+\frac{1}{L_{mz}^2}\right)

Geomechanics and FracturingNaturally Fractured Reservoirs

Lim-Aziz Anisotropic Rectangular Matrix-Block Shape Factor

\alpha=\frac{\pi^2}{k_{mg}}\left(\frac{k_x}{L_{mx}^2}+\frac{k_y}{L_{my}^2}+\frac{k_z}{L_{mz}^2}\right)

Geomechanics and FracturingNaturally Fractured Reservoirs

Linear Fracture Intensity from Scanline Count

P_{10}=\frac{N_f}{L_s}

Geomechanics and FracturingNaturally Fractured Reservoirs

Matrix Block Shape Factor from Surface Area

\alpha=\frac{A}{V_mx}

Geomechanics and FracturingNaturally Fractured Reservoirs

Matrix-Block Shape Factor from Dimensionless Constant

\alpha=\frac{\sigma_D}{L_m^2}

Geomechanics and FracturingNaturally Fractured Reservoirs

Parallel Fracture Set Permeability from Cubic Law

k_{set}=\frac{b_h^3}{12s_f}

Geomechanics and FracturingNaturally Fractured Reservoirs

Single-Fracture Flow Rate from Cubic Law

Q=\frac{Wb_h^3\Delta p}{12\mu L}

Geomechanics and FracturingNaturally Fractured Reservoirs

Slab Matrix Block Interporosity Flow Coefficient

\lambda=\frac{12}{h_s^2}r_w^2\frac{k_m}{k_f}

Geomechanics and FracturingNaturally Fractured Reservoirs

Spherical Matrix Block Interporosity Flow Coefficient

\lambda=\frac{15}{r_m^2}r_w^2\frac{k_m}{k_f}

Geomechanics and FracturingNaturally Fractured Reservoirs

Volumetric Fracture Intensity from Fracture Area

P_{32}=\frac{A_f}{V_r}

Geomechanics and FracturingNaturally Fractured Reservoirs

Warren-Root Interporosity Flow Coefficient

\lambda=\alpha r_w^2\frac{k_m}{k_f}

Geomechanics and FracturingNaturally Fractured Reservoirs

Warren-Root Shape Factor from Fracture Sets

\alpha=\frac{4n(n+2)}{L_m^2}