Petroleum Volumetric Sweep Efficiency Calculator
Integrate actually assessed3D pore-cell contacted fractions with unknown volume bounds, not product of marginal areal/vertical efficiencies or assumed spatial independence. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
Volumetric sweep measures the contacted fraction of a three-dimensional pore-volume inventory.
Volumetric sweep measures the contacted fraction of a three-dimensional pore-volume inventory.1
This tool pools assessed cells and bounds the effect of unknown cells, without multiplying unrelated areal and vertical percentages.
When to use Petroleum Volumetric Sweep Efficiency 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 Volumetric Sweep Efficiency 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 observedCellPoreVolumesM3, observedContactedVolumeFractions, knownContactedCellFlags, following the field table and calculation rules below, then run the tool.
- Read knownVolumetricSweepFraction, wholeVolumeSweepLowerBound, wholeVolumeSweepUpperBound. 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 |
|---|---|---|---|
| observedCellPoreVolumesM3 | Observed cell pore volumes m3 | list of number | Required |
| observedContactedVolumeFractions | Observed contacted volume fractions | list of number | Required |
| knownContactedCellFlags | Known contacted cell flags; binary 1 means assessed and 0 means unknown. | list of number | Required |
Require nonempty aligned positive pore-cell volumes, contacted fractions in [0,1], and binary known flags. Sum total volume T, known volume K, and known contacted volume C; require K>0. Return C/K on assessed volume, C/T as a whole-volume lower bound, and (C+T−K)/T as an upper bound. Unknown entries’ numeric fractions are ignored after validation.
known=C/K; lower=C/T; upper=(C+T−K)/T Read these symbols with the field meanings and branch or reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| knownVolumetricSweepFraction | Known volumetric sweep fraction | number |
| wholeVolumeSweepLowerBound | Whole volume sweep lower bound | number |
| wholeVolumeSweepUpperBound | Whole volume sweep upper bound | number |
{
"input": {
"observedCellPoreVolumesM3": [
1,
2,
3
],
"observedContactedVolumeFractions": [
1,
0.5,
0
],
"knownContactedCellFlags": [
1,
1,
0
]
},
"output": {
"knownVolumetricSweepFraction": 0.6666666666666666,
"wholeVolumeSweepLowerBound": 0.3333333333333333,
"wholeVolumeSweepUpperBound": 0.8333333333333334
}
}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 Sweep Efficiency Vertical Calculator: Sweep efficiency describes how much of an exposure inventory was contacted by displacement. This vertical audit separates assessed contact from unassessed exposure and returns bounds for the complete inventory. For a complementary step, use Petroleum Sweep Efficiency Areal Calculator: Sweep efficiency describes how much of an exposure inventory was contacted by displacement. This areal audit separates assessed contact from unassessed exposure and returns bounds for the complete inventory.
References
Similar or alternative tools
- Petroleum Sweep Efficiency Vertical Calculator
Sweep efficiency describes how much of an exposure inventory was contacted by displacement. This vertical audit separates assessed contact from unassessed exposure and returns bounds for the complete inventory.
- Petroleum Sweep Efficiency Areal Calculator
Sweep efficiency describes how much of an exposure inventory was contacted by displacement. This areal audit separates assessed contact from unassessed exposure and returns bounds for the complete inventory.