*3.2.2 The engineering factors.*


3.Fracturing scale. The impact of fracturing scale can be seen on the production scale, as large amounts of the fracturing fluid volume are pumped; the longer the total length of fracture network, the more complex the resulted fracture network, and the higher the corresponding well production. Using large fracturing scale is an important measure to increase the SRV, which is essential to improve stimulation effect in the shale fracturing, where the bigger the SRV is, the higher the production.

The essential goal for the treatment is to get the most out of each stage and each cluster in the fracturing network. The optimization of fracturing fluid and minding the aforementioned factors can help achieving even flow distribution and network efficiency, both of which can help contribute to increased production. The practices over have realized that, in most cases where it has been measured, only 30–60% of the fractured clusters in a wellbore are providing measurable production [36].
