Petroleum Recovery Factor Gas Calculator
Audit actual produced gas against independently established original/remaining stock inventory, recovery>1 and signed mismatch retained; not reserve recovery-factor prediction. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
Observed gas recovery compares cumulative stock production with an independently established original inventory.
Observed gas recovery compares cumulative stock production with an independently established original inventory.1
This audit also reconciles a separate remaining inventory, keeping ratios above one and signed discrepancies visible.
When to use Petroleum Recovery Factor Gas Calculator
Use this tool when you need to calculate the stated measurement summary or conditional model from matched observations. Prepare completed matched measurements, SI or explicitly stated oilfield units, and independent evidence for the selected branch or calibration.
How to use Petroleum Recovery Factor Gas Calculator and understand its results
- Prepare completed matched measurements, SI or explicitly stated oilfield units, and independent evidence for the selected branch or calibration.
- Enter observedCumulativeProducedStockGasM3, callerIndependentlyEstablishedOriginalStockGasM3, observedIndependentRemainingStockGasM3, following the field table and calculation rules below, then run the tool.
- Read observedGasProductionRecoveryFraction, signedRemainingGasBalanceDiscrepancyM3. For result objects, inspect the nested output fields below, including any missing evidence or selected indices.
- Correct any input issues and run again. Before using a successful result, review its units, signs, evidence coverage, and stated model or reference assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedCumulativeProducedStockGasM3 | Observed cumulative produced stock gas m3 | number | Required |
| callerIndependentlyEstablishedOriginalStockGasM3 | Caller independently established original stock gas m3 | number | Required |
| observedIndependentRemainingStockGasM3 | Observed independent remaining stock gas m3 | number | Required |
Require nonnegative cumulative produced and independently remaining stock volumes and a positive original stock volume. Divide produced by original and subtract original−produced from the measured remaining amount. Use one stock-condition basis; no recovery-factor forecast is fitted.
recovery=produced/original; discrepancy=remaining−(original−produced) Read these symbols with the field meanings and branch or reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedGasProductionRecoveryFraction | Observed gas production recovery fraction | number |
| signedRemainingGasBalanceDiscrepancyM3 | Signed remaining gas balance discrepancy m3 | number |
{
"input": {
"observedCumulativeProducedStockGasM3": 20,
"callerIndependentlyEstablishedOriginalStockGasM3": 100,
"observedIndependentRemainingStockGasM3": 75
},
"output": {
"observedGasProductionRecoveryFraction": 0.2,
"signedRemainingGasBalanceDiscrepancyM3": -5
}
}Limitations and assumptions
Measurements, unit conventions, branch identity, and model applicability must be independently established. The result does not infer a complete reservoir or flow model, operational settings, or a reserve classification.
Missing required fields, unknown fields, wrong types, and violated calculation rules return input issues. Numeric values must be finite; nonfinite numeric outputs are rejected.
Alternative or Complementary methods
For a related task, use Petroleum Original Gas In Place OGIP Calculator: Original in-place stock volume can be estimated by summing independently delineated reservoir patches. This gas calculator uses area, net thickness, porosity, water saturation, and a matched formation-volume factor for each nonoverlapping patch. For a complementary step, use Petroleum Material Balance Gas Calculator: For a verified closed dry-gas balance, pressure divided by gas Z factor can be fitted against cumulative stock production. This tool uses the supplied Z observations and extrapolated line intercept to calculate the reduced balance’s original gas volume.
References
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Petroleum Recovery Factor Gas Calculator — tool.io
Similar or alternative tools
- Petroleum Original Gas In Place OGIP Calculator
Original in-place stock volume can be estimated by summing independently delineated reservoir patches. This gas calculator uses area, net thickness, porosity, water saturation, and a matched formation-volume factor for each nonoverlapping patch.
- Petroleum Material Balance Gas Calculator
For a verified closed dry-gas balance, pressure divided by gas Z factor can be fitted against cumulative stock production. This tool uses the supplied Z observations and extrapolated line intercept to calculate the reduced balance’s original gas volume.