Applying fluid removal/fluid pressure in a geomechanical model

[Dessem]

Hello

I am trying to model a production well in Abaqus FE. The setup is for now a simple geometry of three horizontal pore pressure layers. To model the removal of the fluid I am using a concentrated pore fluid load at a node (or group of nodes) in the middle layer. According to the abaqus manual (16.9.21 of CAE user's manual) the unit of the magnitude of this load is LT^-1. In my case that would be m/s. My problem is that is have no clue what the relationship is between the volume (m³/s) of fluid removed and the value of this magnitude (m/s). Any help on this would be much appreciated.

If you know another way to model fluid removal from a section, that would probably help me out as well.

Thanks in advance

 

[Dessem]

For those interested, this is my solution (it's fairly obvious, in retrospect):

The answer is that the load applied here is a flux (q) (and not a 'velocity' as I first assumed) which has units (m³/s)/m² = m/s. Abaqus assumes unit area then applies darcy's law [1] to convert this flux to a pressure gradient, which is used when running the model. Using the same assumption of unit area, your volume discharge Q (m³/s) is equal to q.

[1]

http://en.wikipedia.org/wiki/Darcy's_law