PetroCalcHubFree

Free engineering reference

Petroleum Engineering Calculators

Back to equations

13 indexed pages

Injection Wells Equations

Browse 13 injection wells petroleum engineering equations with formulas, inputs, outputs, units, and sources.

Injection Wells equations group related upstream petroleum engineering formulas by workflow so engineers can find the right calculation faster.

13

Formulas

Free

No sign-in

Sources

Reviewable

Production EngineeringInjection Wells

Cumulative Hall Plot Pressure Integral

H=H_{prev}+\Delta H

Production EngineeringInjection Wells

Cumulative Water Injected for Hall Plot

W_i=W_{prev}+q_i\Delta t

Production EngineeringInjection Wells

Hall Injectivity Change Ratio from Slopes

R_C=\frac{C_{new}}{C_{base}}=\frac{m_{base}}{m_{new}}

Production EngineeringInjection Wells

Hall Injectivity Coefficient from Slope

C_H=\frac{1}{m_H}

Production EngineeringInjection Wells

Hall Plot Pressure-Time Increment

\Delta H=(P_{iwf}-P_{avg})\Delta t

Production EngineeringInjection Wells

Hall Plot Slope from Two Surveillance Points

m_H=\frac{H_2-H_1}{W_{i2}-W_{i1}}

Production EngineeringInjection Wells

Injected Hydrocarbon Pore Volumes

HCPV_{inj}=\frac{W_iB_{wi}}{7758Ah\phi S_o}

Production EngineeringInjection Wells

Injectivity Index

I_i = \frac{q_i}{P_{wf} - P_r}

Production EngineeringInjection Wells

Radial Water Injection Rate

q_w=\frac{0.00708k_{rw}kh(P_{iwf}-P_e)}{\mu_wB_w[\ln(r_e/r_w)+s]}

Production EngineeringInjection Wells

Radial Water Injectivity Index

I_w=\frac{0.00708k_{rw}kh}{\mu_wB_w[\ln(r_e/r_w)+s]}

Production EngineeringInjection Wells

Voidage Replacement Ratio

VRR=\frac{W_iB_{wi}+G_iB_{ginj}}{N_pB_o+W_pB_{wp}+B_g(GOR-R_s)N_p}

Production EngineeringInjection Wells

Water Injection Bottom-Hole Pressure from Radial Flow

P_{iwf}=P_e+\frac{q_w\mu_wB_w[\ln(r_e/r_w)+s]}{0.00708k_{rw}kh}

Production EngineeringInjection Wells

Waterflood Mobility Ratio

M=\frac{k_{rw}/\mu_w}{k_{ro}/\mu_o}