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Petroleum Reservoir Volumetric Original Oil in Place (OOIP / STOIIP) Calculator

Easily calculate and compute petroleum reservoir volumetric original oil in place (ooip / stoiip) calculator with accurate equations, live formulas, and expert guidance.

Typical Boi is 1.1 to 1.6 reservoir barrels per stock tank barrel.

Calculated Result
24,130,483 STB

Original Oil in Place

Original Oil in Place

24,130,483 STB

Original Oil In Place Stb

24130483

Million Stock Tank Barrels Mmbo

24.13

Total Hydrocarbon Pore Volume Bbl

30163104

Acre Feet Rock Volume

28800

24,130,483 — STB

Calculation Breakdown

  1. Applied FormulaEstimates total initial hydrocarbons residing in a newly discovered petroleum reservoir using the classic 7758 acre-foot volumetric formula.\text{OOIP} = \frac{7758 \cdot A \cdot h \cdot \phi (1 - S_w)}{B_{oi}}

Volumetric OOIP / STOIIP Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.06032.6k12065.2k18097.9k24130.5kOriginal Oil in Place

What Is the Petroleum Reservoir Volumetric Original Oil in Place (OOIP / STOIIP) Calculator?

This tool computes petroleum reservoir volumetric original oil in place (ooip / stoiip) calculator with high precision arithmetic.

How Does the Petroleum Reservoir Volumetric Original Oil in Place (OOIP / STOIIP) Calculator Work?

Estimates total initial hydrocarbons residing in a newly discovered petroleum reservoir using the classic 7758 acre-foot volumetric formula.

Petroleum Reservoir Volumetric Original Oil in Place (OOIP / STOIIP) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

OOIP=7758⋅A⋅h⋅ϕ(1−Sw)Boi\text{OOIP} = \frac{7758 \cdot A \cdot h \cdot \phi (1 - S_w)}{B_{oi}}

Estimates total initial hydrocarbons residing in a newly discovered petroleum reservoir using the classic 7758 acre-foot volumetric formula.

How to Use the Petroleum Reservoir Volumetric Original Oil in Place (OOIP / STOIIP) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Petroleum Reservoir Volumetric Original Oil in Place (OOIP / STOIIP) Calculator Example

Input Values:

reservoirAreaAcres:640
netPayThicknessFeet:45
averagePorosityPct:18
initialWaterSaturationPct:25
initialOilFormationVolumeFactorBoi:1.25
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required STB.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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