Petroleum Cuttings Transport Ratio Calculator
Audit vertical dilute cuttings transport ratio1−slip/liquid speed from independently observed slip, negative settling evidence retained; no deviated-well bed transport model or prescribed circulation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
A dilute vertical cuttings model compares independently observed slip speed with upward annular liquid speed.
A dilute vertical cuttings model compares independently observed slip speed with upward annular liquid speed.1
This audit returns one minus their ratio and retains negative apparent transport evidence.
When to use Petroleum Cuttings Transport Ratio 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 Cuttings Transport Ratio 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 observedVerticalAnnularLiquidSpeedsMSecond, callerIndependentCuttingsSlipSpeedsMSecond, following the field table and calculation rules below, then run the tool.
- Read observedApparentCuttingsTransportRatios. 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 |
|---|---|---|---|
| observedVerticalAnnularLiquidSpeedsMSecond | Observed vertical annular liquid speeds m second | list of number | Required |
| callerIndependentCuttingsSlipSpeedsMSecond | Caller independent cuttings slip speeds m second | list of number | Required |
Require nonempty aligned positive liquid speeds and nonnegative slip speeds in m/s. Compute 1−slip/liquid for each pair. Slip greater than liquid produces a negative ratio, and no clamping or deviated-well bed model is applied.
transportRatio=1−slipSpeed/liquidSpeed Read these symbols with the field meanings and branch or reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedApparentCuttingsTransportRatios | Observed apparent cuttings transport ratios | list of number |
{
"input": {
"observedVerticalAnnularLiquidSpeedsMSecond": [
2,
3
],
"callerIndependentCuttingsSlipSpeedsMSecond": [
0.5,
1
]
},
"output": {
"observedApparentCuttingsTransportRatios": [
0.75,
0.6666666666666667
]
}
}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 Equivalent Circulating Density ECD Calculator: Equivalent circulating density combines the hydrostatic contribution of a fluid column with an additional friction pressure. This audit uses vertical layer lengths and independent friction to return an equivalent density at their summed vertical depth. For a complementary step, use Petroleum Torque On Bit Calculator: Surface torque includes contributions beyond the bit and may need a matched off-bottom correction. This audit subtracts the supplied baseline and applies an independently measured transmission fraction, retaining a signed apparent bit torque.
References
Similar or alternative tools
- Petroleum Equivalent Circulating Density ECD Calculator
Equivalent circulating density combines the hydrostatic contribution of a fluid column with an additional friction pressure. This audit uses vertical layer lengths and independent friction to return an equivalent density at their summed vertical depth.
- Petroleum Torque On Bit Calculator
Surface torque includes contributions beyond the bit and may need a matched off-bottom correction. This audit subtracts the supplied baseline and applies an independently measured transmission fraction, retaining a signed apparent bit torque.