# Gas Viscosity at Atmospheric Pressure

The viscosity of a gas can be thought of as a measure of its resistance to flow it is usually measured in centipoises (cp).

It generally ranges from 0.01 to 0.03 cp at standard and reservoir conditions, reaching up to 0.1 cp for near-critical gas condensates.

Reference: Phase Behavior, Curtis H. Whitson and Michael R. Brule

### Correlations

- 1-Lee-Gonzalez-Eakin
- 2-Londonoetal
- 3-Standing
- 4-Lucas

### Input Parameters

Name | Input Value - Unit | Converted Value | Validity | Link to Calculation Page | |||
---|---|---|---|---|---|---|---|

Temperature | 599.67 | °R | |||||

Average Surface Gas Specific Gravity | 0.72 | SG | Average Surface Gas Gravity (ɣ_{g}) | ||||

Pseudo Properties Calculation Method | 2 | ||||||

Pseudo Critical Properties Correction Method | 2 | ||||||

N2 Content | 0 | % | |||||

CO2 Content | 5 | % | |||||

H2S Content | 10 | % | |||||

CALCULATE | |||||||

## Results | |||||||

Correlation | Calculated Value | Warnings | Remarks | ||||

1-Lee-Gonzalez-Eakin | 0.01178 | cp | |||||

2-Londonoetal | 0.01164 | cp | |||||

3-Standing | 0.01175 | cp | |||||

4-Lucas | 0.01103 | cp |