Some scientific research results are presented on this Web page.

Non-stationary well production process in multilayered reservoir is considered. Fluid and rock matrix is deformable, bulk in a reservoir strata is not available. Wellbore fluid crossflow between layers during production shutting-in and start is leakage studied numerically. Predicted volume and time of such crossflow are comparable with parameters of well chemical treatment. The main conclusion of the research is the availability of wellbore crossflow usage for selective well treatment. Methods of variation of inflow volume in particular layer during non-stationary wellbore crossflow are considered.

Non-stationary well production and injection process in multilayered reservoir is considered. Fluid and rock matrix is deformable, bulk in a reservoir strata is not available. The method for selective treatment by reagents in low or high permeability layer, which based on regimen change of well is presented. For particular layer presented selective method allows injecting fixed reagent volume in low or high permeability layer, the value of this volume depends on layers parameters and initial flow rate. The example of proposed method is presented with acid selective injection in low permeability layer. The comparison of traditional and presented methods shows high efficiency of proposed method in case of water- saturated reservoir.