TY  - JOUR
T1  - Evaluation of One Factor at A Time (OFAT) Technique in
Viscosity Modeling of Polymer Solution
AU - Akbari, Saeed AU - Mahmood, S.M. AU - M. Tan, Isa AU - J. Adeyemi, Bamikole 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 17
SP  - 4313
EP  - 4319
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.4313.4319
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.4313.4319
KW  - UTCHEM
KW  -polymer flooding
KW  -viscosity
KW  -One Factor at A Time (OFAT)
KW  -Design Of Experiment (DOE)
KW  -Perak
AB  - Viscosity has been identified as the main solution property in polymer flooding applications.
Currently UTCHEM simulator is claimed to be more robust than CMG-STARS and ECLIPSE, since it takes into
account salinity and hardness effects on polymer viscosity other than polymer concentration and shear rate
effects. However, UTCHEM model was developed using One-Factor-at-A-Time (OFAT) approach. The major
disadvantage of the OFAT strategy is that it fails to consider any possible interactions between the factors.
In this research, it has been showed that interactions between factors in polymer studies are very common and
they lead to producing poor results by OFAT strategy and consequently by the viscosity model. This study
evaluates the viscosity model of UTCHEM simulator for predicting bulk viscometric data. UTCHEM Model was
compared to experimental data to evaluate its predictive accuracy. Although, UTCHEM Model accurately
predicted polymer viscosity at zero shear rate, it gave inaccurate results at increased shear rate. Results showed
that there exist interaction among the various factors involved in polymer studies. Consequently, Design Of
Experiment (DOE) is proposed for improved model for predicting polymer viscosity.
ER  -