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Reservoir Volumetrics Equations

Browse 19 reservoir volumetrics petroleum engineering equations with formulas, inputs, outputs, units, and sources.

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

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Reservoir EngineeringReservoir Volumetrics

Gross Rock Volume from Area and Gross Thickness

Vgrv=43560AhgV_{grv}=43560Ah_g
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Reservoir EngineeringReservoir Volumetrics

Gross Rock Volume in Acre-Feet from Area and Thickness

Vgrv,af=AhgV_{grv,af}=Ah_g
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Reservoir EngineeringReservoir Volumetrics

Gross Rock Volume in Reservoir Barrels

Vgrv,bbl=7758AhgV_{grv,bbl}=7758Ah_g
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Reservoir EngineeringReservoir Volumetrics

Hydrocarbon Pore Volume - Volumetric Method

HCPV=7758Ahϕ(1−Swi)HCPV = 7758 A h \phi(1 - S_{wi})
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Reservoir EngineeringReservoir Volumetrics

Hydrocarbon Pore Volume from Pore Volume and Water Saturation

HCPV=PV(1−Swi)HCPV=PV(1-S_{wi})
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Reservoir EngineeringReservoir Volumetrics

Net Pay Thickness from Gross Thickness and Net-to-Gross

h=hgNTGh=h_gNTG
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Reservoir EngineeringReservoir Volumetrics

Net Reservoir Rock Volume from Net-to-Gross

Vnrv=43560AhgNTGV_{nrv}=43560Ah_gNTG
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Reservoir EngineeringReservoir Volumetrics

Net Rock Volume in Reservoir Barrels from Net-to-Gross

Vnrv,bbl=7758AhgNTGV_{nrv,bbl}=7758Ah_gNTG
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Reservoir EngineeringReservoir Volumetrics

Original Condensate In Place from Gas In Place and Liquid Content

Nc=GYc106N_c=\frac{GY_c}{10^6}
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Reservoir EngineeringReservoir Volumetrics

Original Condensate In Place with Net-to-Gross

Nc=43560AhgNTGϕ(1−Swi)Yc106BgiN_c=\frac{43560Ah_gNTG\phi(1-S_{wi})Y_c}{10^6B_{gi}}
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Reservoir EngineeringReservoir Volumetrics

Original Gas in Place - Volumetric Method

G=43560Ahϕ(1−Swi)BgiG = \frac{43560 A h \phi (1 - S_{wi})}{B_{gi}}
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Reservoir EngineeringReservoir Volumetrics

Original Gas In Place with Net-to-Gross

G=43560AhgNTGϕ(1−Swi)BgiG=\frac{43560Ah_gNTG\phi(1-S_{wi})}{B_{gi}}
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Reservoir EngineeringReservoir Volumetrics

Original Oil in Place - Volumetric Method

N=7758Ahϕ(1−Swi)BoiN = \frac{7758 A h \phi (1 - S_{wi})}{B_{oi}}
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Reservoir EngineeringReservoir Volumetrics

Original Water In Place with Net-to-Gross

W=7758AhgNTGϕSwiBwiW=\frac{7758Ah_gNTG\phi S_{wi}}{B_{wi}}
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Reservoir EngineeringReservoir Volumetrics

Pore Volume from Net Rock Volume and Porosity

PV=Vnrv,bblϕPV=V_{nrv,bbl}\phi
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Reservoir EngineeringReservoir Volumetrics

Reservoir Gas Volume from Gas In Place and Gas FVF

Vgi=GBgiV_{gi}=GB_{gi}
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Reservoir EngineeringReservoir Volumetrics

Reservoir Oil Volume from Stock Tank Oil and Oil FVF

Voi=NBoiV_{oi}=NB_{oi}
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Reservoir EngineeringReservoir Volumetrics

Reservoir Pore Volume - Volumetric Method

PV=7758AhϕPV = 7758 A h \phi
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Reservoir EngineeringReservoir Volumetrics

Stock Tank Oil Initially In Place with Net-to-Gross

N=7758AhgNTGϕ(1−Swi)BoiN=\frac{7758Ah_gNTG\phi(1-S_{wi})}{B_{oi}}
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