Reservoir EngineeringWaterflooding and EOR
Slug Size in Polymer Floods Formula
Slug Size in Polymer Floods calculates polymer slug size for waterflooding and eor workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (A_ads, rho_r, phi, C_poly) are known and the assumptions behind the cited waterflooding and eor 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, S_slug equals 0.795 dimensionless.
A_adsg polymer/g rock
0.0002
rho_rg/cc
2.65
phifraction
0.25
C_polyg/cc
0.002
Inputs
A_ads
g polymer/g rockPolymer Adsorption
rho_r
g/ccRock Density
phi
fractionPorosity
C_poly
g/ccPolymer Concentration
Outputs
S_slug
dimensionless
Polymer Slug Size
A_ads
g polymer/g rock
Polymer Adsorption
rho_r
g/cc
Rock Density
phi
fraction
Porosity
C_poly
g/cc
Polymer Concentration
Source and review
reviewedEhrlich, Enhanced Recovery lecture notes, PTE 531 Oil Recovery, University of Southern California.
Source