Abstract
The significance of fracture face matrix damage in fractured shale gas wells is not clear. A new mathematical model was developed to predict the effect of fracture face matrix damage on productivity of fractured gas wells in shale gas reservoirs. Results of the model analyses were sensitized to reservoir properties and facture face matrix skin properties determined by the fracturing fluid properties and treatment conditions. The authors conclude that fracture face matrix damage is strongly affected by the properties of fracturing fluids. Using the lowest possible leak-off coefficient and spurt-loss coefficient can significantly reduce fracture face matrix damage and retain gas well productivity.
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