Using a fluid flow to find the crack path

What is it about?

The velocity of flow, permeability, and pressure distribution have been considered in this work. The transient simulation of a porous rock block has been carried out. Specific storage and Darcy's constants have been used as input parameters to investigate the material's behavior. Physically, the Darcy's constant and the storability are used to indicate the permeability in this simulation. Hence, the transient porous analysis was selected in this model using LISA FE software.

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Photo by Kuba Regulski on Unsplash

Photo by Kuba Regulski on Unsplash

Why is it important?

This model describes the simulation of the fluid movement (velocity potential) using the injection of the fluid in a central hole of a block. In addition, the production well hole was simulated. Dramatically, the injection of fluid will produce the fracture surface. Hence, the flow behavior of a fractured surface was investigated in porous rock. Then the nature of the cracking surface and direction can be estimated using the flow map. Hence, Franc2D was used to simulate the crack path based on the fluid pressure. The crack direction was verified with experiments from the literature. By considering the fluid direction from LISA (i.e., velocity map) and fracturing from Franc2D, the location of cracks and direction can be estimated.

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