This what i think...your choke ID is to small, which lead to higher friction losses, ..then BHP will exceed your FG.
Solutions play around with our choke ID and length..it might help


Quote Originally Posted by Bassey View Post
Hi guys,

I am currently carrying out a simulation for my thesis on Drillbench. However, after inputting my values on the Kick module, this message keeps coming up..."Warning : The choke is not large enough to keep the constant bottom hole pressure mode."....followed by this..."Warning : Fracture pressure exceeded"

Please, any help in this regard would be helpful.

Thanks in advance.