Numerical Simulation Of Flow Field In Injection Allocation With Concentric Annuli With Ring Slots On The Inner Cylinder

Because of the heterogeneous reservoirs in Daqing Oilfield the strata more serious, it is particularly important to carry out zonal injection technology of polymer flooding. the key of seperated layer polymer injection technology is the shape and size of the core, as a savings component, which can reach the scene called for pressure to reduce expenditure as much as possible so that the viscosity loss of the smallest, As to the problem mentioned above, a injection allocation with concentric annulus with ring slots on the inner cylinder was invented.In this paper, Navier-Stokes fundamental equations, the k-εturbulence model and the solid-wall-surface functional method; FLUENT6.3 of CFD software are used for numerical simulation, the flow field characteristics of water in injection allocation with concentric annuli with ring slots on the inner cylinder were simulated, then the distribution of velocity, pressure and turbulent kinetic energy were reserched, and the effect of the size of core convective injection field were analyzed; as an example of HPAM aqueous solution which is regarded as Non-Newtonian power-law fluid, including simulated power-law fluid pipe band with the empty slot ring injection device in the flow of the flow field characteristics, then the distribution of velocity, pressure and apparent viscosity were researched, and the effect of the size of core convective injection field were analyzed; The simulation results Experiments show power-law fluid, including pipe band ring empty slot allocation Note inside the flow.The results mentioned above are of theoretical meaning for the optimizing of geometrical size and flow parameter of concentric annuli with ring slots on the inner cylinder.