10.25394/PGS.7416461.v1
Pratik Kiranrao Naik
Pratik Kiranrao
Naik
History matching of surfactant-polymer flooding
Purdue University Graduate School
2019
history matching
surfactant-polymer flooding
bayesian history matching
polynomial chaos expansion
Genetic algorithm
optimization
Mechanical Engineering
2019-01-17 13:48:10
Thesis
https://hammer.purdue.edu/articles/thesis/History_matching_of_surfactant-polymer_flooding/7416461
This thesis presents a framework for history matching and model calibration of surfactant-polymer (SP) flooding. At first, a high-fidelity mechanistic SP flood model is constructed by performing extensive lab-scale experiments on Berea cores. Then, incorporating Sobol based sensitivity analysis, polynomial chaos expansion based surrogate modelling (PCE-proxy) and Genetic algorithm based inverse optimization, an optimized model parameter set is determined by minimizing the miss-fit between PCE-proxy response and experimental observations for quantities of interests such as cumulative oil recovery and pressure profile. The epistemic uncertainty in PCE-proxy is quantified using a Gaussian regression process called Kriging. The framework is then extended to Bayesian calibration where the posterior of model parameters is inferred by directly sampling from it using Markov chain Monte Carlo (MCMC). Finally, a stochastic multi-objective optimization problem is posed under uncertainties in model parameters and oil price which is solved using a variant of Bayesian global optimization routine.
<br>