... empirical observations from certain ongoing water floods in the field suggesting that varying of injection and production rates can lead to improvement in production performance. We speculate that variable rate water floods involving frequent flow perturbations can lead to redistribution of water and oil...

... realizations are treated as initial models. A probability perturbation method is used to locally change the facies connectivity to approximate production data. Based on previous study, such method uses a 1D gradient-based optimization method within a maximum of 9 iteration runs. 3. A quadratic response...

... of flow, transport and reaction is performed using first- order perturbations. The reaction front propagation in the heterogeneous medium is then analyzed and field-scale expressions are obtained for the coefficients in reaction rate, effective flow velocity and longitudinal macrodispersivity...

... fraction diffusion permeability perturbation aquifer equation 1 PAPER 2004-151 Modelling of Convective Mixing in CO2 Storage H. HASSANZADEH, M. POOLADI-DARVISH, D.W. KEITH University of Calgary This paper is to be presented at the Petroleum Society s 5th Canadian International Petroleum Conference...

... the invariant or stationary probability distribution characterizing the reservoir permeability field. An initial random field is perturbed successively following a Gibbs sampling procedure. The updated values at the perturbed node are obtained by sampling from the corresponding kriged distribution...