Table 3.
Factors controlling polymer viscoelasticity (positive refers to the viscoelasticity increment, while negative is its decrease).
| No | Factors | Effect on Polymer Viscoelasticity |
|---|---|---|
| 1 | Polymer Molecular Weight (Mw) | Positive
|
| 2 | Polymer Concentration (Cp) | Positive with threshold
|
| 3 | Temperature | Negative
|
| 4 | Brine Salinity (TDS) | Inconclusive
|
| 5 | Brine Hardness | Inconclusive
|
| 6 | Permeability | Negative
|
| 7 | Nanoparticles | Positive
|
| 8 | Residual Oil Saturation | Dual
|
| 9 | Degree of Hydrolysis | Positive with threshold
|
| 10 | Injection Rate | Positive
|
| 11 | Pre-shearing | Negative
|