Production EngineeringWell Performance
Suspension Property of Static Fluids (Completion and Workover Fluids) Formula
Suspension Property of Static Fluids (Completion and Workover Fluids) calculates particle settling velocity for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (d, rho_p, rho_f, g, mu) are known and the assumptions behind the cited well performance 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, v equals 0.020734 in/s.
dmicrometer
100
rho_pg/cm3
2.65
rho_fg/cm3
1.2
gft/s2
32.174
mucP
5
Inputs
d
micrometerParticle Diameter
rho_p
g/cm3Solid Particle Density
rho_f
g/cm3Fluid Density
g
ft/s2Acceleration due to Gravity
mu
cPFluid Viscosity
Outputs
v
in/s
Particle Settling Velocity
d
micrometer
Particle Diameter
mu
cP
Fluid Viscosity
rho_p
g/cm3
Solid Particle Density
rho_f
g/cm3
Fluid Density
Source and review
reviewedBridges, K.L. 2000. Completion and Workover Fluids, Vol. 19, Society of Petroleum Engineers, Page 49.
SourceRelated formulas and calculators
Effective Wellbore Radius of a Well in Presence of Uniform Flux Fractures
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Effective Wellbore Radius of a Horizontal Well – Method 1 (Anisotropic Reservoirs)
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Effective Wellbore Radius of a Horizontal Well – van der Vlis et al. Method
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