Petroleum Formation Volume Factor Water Calculator
Infer measured water formation-volume factor from same-parcel reservoir/stock volumes after independently measured gas-envelope correction, no generic liquid density ratio or universal PVT correlation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
Water formation-volume factor compares a parcel’s reservoir volume with its volume at stated stock conditions.
Water formation-volume factor compares a parcel’s reservoir volume with its volume at stated stock conditions.1
This audit subtracts a separately measured gas-envelope correction before dividing matched same-parcel volumes.
When to use Petroleum Formation Volume Factor Water 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 Formation Volume Factor Water 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 observedReservoirWaterVolumesM3, observedSameParcelStockWaterM3, observedIndependentDissolvedGasCorrectionM3, following the field table and calculation rules below, then run the tool.
- Read gasCorrectedObservedWaterFvf. 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 |
|---|---|---|---|
| observedReservoirWaterVolumesM3 | Observed reservoir water volumes m3 | list of number | Required |
| observedSameParcelStockWaterM3 | Observed same parcel stock water m3 | list of number | Required |
| observedIndependentDissolvedGasCorrectionM3 | Observed independent dissolved gas correction m3 | list of number | Required |
Require nonempty aligned nonnegative reservoir volumes and gas corrections, with positive stock-water volumes. Each reservoir volume minus its gas correction must remain strictly positive; divide that corrected amount by stock volume. No pressure/temperature correlation or density-ratio shortcut is applied.
Bw_i=(reservoirWater_i−gasCorrection_i)/stockWater_i Read these symbols with the field meanings and branch or reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| gasCorrectedObservedWaterFvf | Gas corrected observed water fvf | list of number |
{
"input": {
"observedReservoirWaterVolumesM3": [
2,
3
],
"observedSameParcelStockWaterM3": [
1,
2
],
"observedIndependentDissolvedGasCorrectionM3": [
0.1,
0.2
]
},
"output": {
"gasCorrectedObservedWaterFvf": [
1.9,
1.4
]
}
}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. Arrays must be dense, with no missing cells. Numeric lists allow at most 10000 entries, subject to smaller tool-specific bounds above.
Alternative or Complementary methods
For a related task, use Petroleum Solution Gas Oil Ratio Bubble Point Calculator: Solution gas-oil ratio at the bubble point concerns gas released from the same oil parcel at specified stock conditions. This audit pools only independently confirmed bubble-point parcels and keeps unassessed parcel counts separate. For a complementary step, use Petroleum Material Balance Oil Calculator: A reduced solution-gas oil material balance compares measured withdrawal and modeled fluid expansion on a matched stock/reservoir basis. This calculator exposes that reduced model and retains signed inconsistencies rather than implying a complete reservoir balance.
References
Similar or alternative tools
- Petroleum Solution Gas Oil Ratio Bubble Point Calculator
Solution gas-oil ratio at the bubble point concerns gas released from the same oil parcel at specified stock conditions. This audit pools only independently confirmed bubble-point parcels and keeps unassessed parcel counts separate.
- Petroleum Material Balance Oil Calculator
A reduced solution-gas oil material balance compares measured withdrawal and modeled fluid expansion on a matched stock/reservoir basis. This calculator exposes that reduced model and retains signed inconsistencies rather than implying a complete reservoir balance.