PetrophysicsRock Properties

Relative Centrifugal Force Formula

RCF=\left(\frac{RPM}{265}\right)^2d

Relative Centrifugal Force calculates relative centrifugal force for rock properties workflows in petrophysics.

Calculate

How engineers use this formula

Use this formula when the listed inputs (RPM, d) are known and the assumptions behind the cited rock properties relationship match the engineering case being checked.

Assumptions

Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
The declared units match the field-unit constants used in the formula.
The cited formula applies to the selected petroleum engineering workflow.

Limitations

The calculation does not replace a full engineering model or operating procedure.
Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.

Common mistakes

Mixing unit systems without converting the inputs.
Using default example values as field recommendations.
Applying the formula outside the source assumptions.

Default example

Using the default inputs, RCF equals 768.956924 g.

RPMrpm

3000

din

Inputs

RPM

rpm

Centrifuge Speed

d

Diameter Between Opposed Tubes

Outputs

RCF

Relative Centrifugal Force

RPM

rpm

Centrifuge Speed

d

Diameter Between Opposed Tubes

Source and review

reviewed

Petroleum and Natural Gas Laboratory Course Notes, I-Fluid Properties, Mihcakan, I. M., Alkan, K. H., Ugur, Z. (2001)

Mihcakan, I. M., Alkan, K. H., and Ugur, Z. 2001. Petroleum and Natural Gas Laboratory Course Notes, I-Fluid Properties, ITU Petroleum and Natural Gas Engineering, Page 3-2.

source conflict

Source