Robustness to formation geological heterogeneities of the limited entry technique for multi-stage fracturing of horizontal wells is investigated. It is necessary to simulate the complete process of initiation and propagation of multiple hydraulic fractures, accounting for fluid flow in the wellbore together with perforation friction and stress interaction between fractures, to fully investigate the robustness of the limited entry technique. A newly developed model is used for accounting for all these features, assuming that all fractures remain radial, transverse to the wellbore. The simulations carried out are focused on fracture initiation and radial propagation to provide insight into the initial and crucial stage of fracture growth before proppant is injected into the fractures.