Geology Effective Porosity Calculator
Connected tracer volume excluding independently resolved dead ends, unlike total pore/grain-density porosity. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.
Description
Effective porosity excludes independently estimated dead-end volume from a supplied connected pore volume.
Effective porosity excludes independently estimated dead-end volume from a supplied connected pore volume.1
The distinction between total, connected and effective porosity depends on the adopted transport and measurement protocol. Use this tool to calculate effective porosity from the supplied measurements and assumptions.
When to use Geology Effective Porosity Calculator
Use this tool to calculate effective porosity from the supplied measurements and assumptions. Establish the measurement units, sampled interval, calibration or model edition and geological assumptions before entering data.
How to use Geology Effective Porosity Calculator and understand its results
- Establish the measurement units, sampled interval, calibration or model edition and geological assumptions before entering data.
- Enter coreBulkVolume, connectedTracerVolume, independentDeadEndVolume, using the field meanings and rules below, then run the tool.
- Read effectivePorosity, connectedPorosity. Interpret the fields using their units, signs and evidence conventions below.
- If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| coreBulkVolume | Core bulk volume | number | Required |
| connectedTracerVolume | Connected tracer volume | number | Required |
| independentDeadEndVolume | Independent dead end volume | number | Required |
Require positive bulk volume and nonnegative connected and dead-end volumes with deadEnd≤connected≤bulk. Return connected/bulk and (connected−deadEnd)/bulk on the same declared volume basis. No pore-connectivity measurement or transport simulation is performed.
connectedPorosity=connected/bulk; effectivePorosity=(connected−deadEnd)/bulk Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| effectivePorosity | Effective Porosity; follow the units, sign, ordering and evidence convention stated above | number |
| connectedPorosity | Connected Porosity; follow the units, sign, ordering and evidence convention stated above | number |
{
"input": {
"coreBulkVolume": 100,
"connectedTracerVolume": 20,
"independentDeadEndVolume": 5
},
"output": {
"effectivePorosity": 0.15,
"connectedPorosity": 0.2
}
}Limitations and assumptions
The distinction between total, connected and effective porosity depends on the adopted transport and measurement protocol. Interpretation depends on the units, sampling scope and exact model described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.
Alternative or Complementary methods
Use Geology Specific Yield Gravity Drainage Calculator for this related task: Specific yield is the fraction of a bulk sample volume that drains under a defined gravity-drainage protocol.
Use Geology Fracture Porosity Calculator when its separate inputs and assumptions fit the question: Fracture porosity compares an estimated fracture void volume with the bulk volume containing it.
References
-
Geology Effective Porosity Calculator — tool.io
Similar or alternative tools
- Geology Specific Yield Gravity Drainage Calculator
Specific yield is the fraction of a bulk sample volume that drains under a defined gravity-drainage protocol.
- Geology Fracture Porosity Calculator
Fracture porosity compares an estimated fracture void volume with the bulk volume containing it.