# Well size influence

As on the field, a well implementation is hugely expensive and a mistake could lead to huge economical losses. It's important to know the best dimensions and the most adapted to the problem before drilling.

We tested in this part three well dimensions. And we studied the behavior of the flow as a function of the well diameter that we have called D.

The solver used is a solver without anisotropy, moreover the permeability will be equal to $K=7.10 {-7} \ m^2$.

# Influence of the well size on the velocity field

Velocity field D=0.2 m

Velocity field D=0.5 m

Velocicty field  D=1 m

We observe that an increasing in the well diameter  leads to a decreasing of the maximum velocity magnitud.

# Influence of the well size on the pressure field

Pressure field D=0.2 m

Pressure field D= 0.5 m

Pressure field D= 1 m

We observe that an increasing in the well diameter leads to a increasing of the maximum negative pressure.