The Development And Application Of Rapid Evaluation Software For Enhanced Oil Recovery Potential

In oil field,we need to evaluate enhanced oil recovery potential before applying a new technology,and we also need economic analysis.While there are hundreds of reservoirs in an oil field,so a reliable and rapid evaluated model is needed.This paper establishes rapid evaluating models for gas flooding,foam flooding,surfactant flooding and microbial flooding while adopting poromechanics theory,reservoir numerical simulation,Buckley-Leverett theory.For gas flooding,this paper applying new method calculating minimum miscible pressure,which corrects relative permeability curve by the factor of minimum miscible pressure.For foam flooding,considering adsorption and foam attenuation,corrects mobility ratio by mobility reducing factor.In surfactant model,this paper simulates mechanism of surfactant flooding by considering surfactant adsorption and applying virial expansion,interface tension computational formula,relative permeability modified model.By comparing the result with commercial software Eclipse,verifies the reliability of the new model.this model is not only fast,but also reliable,can be used for enhanced oil recovery potential evaluation on large scale.