Today hydraulic fracturing is proved to be the most reliable and effective method of well stimulation. Specialists of NGDU are performing hydraulic fracturing efficiently, taking into account the quality of wells selection, introducing mode of treatment in order to provide an optimal geometry of fracture and get the highest production index from every well.

In spite of the fact that repeated hydraulic fracturing is widely spread and used, all works are narrow directed. Considering either treatment results or, vice versa, describe process design. In this work we tried to identify treatment mode dependence, which allows generating required geometry of the fracture in accordance with different factors and then, estimate obtained results of well production increase and incremental ultimate recovery. Refractured wells were chosen for qualitative assessment of hydraulic fracturing to estimate correctness of project modes and treatment result more exactly. It will also allow improving efficiency not only from refracturing, but also from first treatments.

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