Petroleum Flow Efficiency Calculator

ActualwellflowefficiencyPIactual/independentundamagedPIref,no inventskin/remediationefficacy;ratioabove1retained.

Description

Flow efficiency compares observed well productivity with an independently established undamaged reference.

Flow efficiency compares observed well productivity with an independently established undamaged reference.1

A value above one is retained and may reflect the reference or measurement context.

When to use Petroleum Flow Efficiency Calculator

Use this tool to apply the stated petroleum flow efficiency calculator operation with an explicit input and unit basis.

How to use Petroleum Flow Efficiency Calculator and how it works

  1. Establish the measurement basis and units described above.
  2. Enter actualMeasuredProductivityIndex, callerIndependentUndamagedReferenceProductivityIndex and run the tool.
  3. Read result.value using the output meanings below.
  4. If input is rejected, correct the stated type, range, ordering or alignment issue and rerun; review successful results under the declared convention.
Input fieldMeaningValue typeRequirement
actualMeasuredProductivityIndexMeasured productivity index, on the basis specified in the algorithm.numberrequired; finite; nonnegative; further conditions in the algorithm
callerIndependentUndamagedReferenceProductivityIndexUndamaged reference productivity index, on the basis specified in the algorithm.numberrequired; finite; strictly positive; further conditions in the algorithm

Require nonnegative observed PI and positive reference PI. Divide observed by reference; output is a ratio rather than a percentage.

flow efficiency = actual PI / reference PI

Apply the declared units, ordering and branch conditions.

Output fieldMeaningValue type
resultObject containing the declared output fields.object
result.valueDimensionless actual/reference productivity ratio, not percent.number
json
{
  "input": {
    "actualMeasuredProductivityIndex": 1,
    "callerIndependentUndamagedReferenceProductivityIndex": 2
  },
  "output": {
    "result": {
      "value": 0.5
    }
  }
}

Limitations and assumptions

The output applies the declared operation to the values you supply. Establish the measurement basis, units, coefficients and any caller-selected rules before interpreting it. The tool does not independently collect or verify observations or decide whether a model or reference applies.

Supply explicit required fields with the documented types and dense aligned arrays. Unknown fields, wrong types and nonfinite numbers are rejected. Branch-specific constraints are explained above. A successful false boolean, negative signed difference, empty slice or unresolved tie is distinct from an input error. Very large inputs or outputs may be rejected by shared resource limits.

Alternative or Complementary methods

For a related operation, use Petroleum Well Test Radius Of Investigation Calculator. A well-test investigation-radius reference depends on flow regime, storage, geometry and the chosen interpretation criterion.

For a related operation, use Petroleum Productivity Index PI Calculator. Productivity index relates an observed steady flow rate to its pressure drawdown.

References

  1. Petroleum Flow Efficiency Calculator — tool.io

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