Discrete Element Analysis for Hydraulic Fracture Propagations in Laminated Reservoirs with Complex Initial Joint Properties

Figure 13

Distributions of the fracture type under different tensile-to-shear strength ratios. (In the upper right corner of each picture, those two numbers represent approach angle and the tensile-to-shear strength ratio. Red color is matrix shear cracks (Pbs). Green color is matrix tensile cracks (Pbt). Orange color is shear cracks which occur in bedding planes (Sjs). Blue color is tensile cracks in bedding planes (Sjt). For the interpretation of the references to color in this figure, the reader needs to refer to the web version of this article).

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