Skonki
commented
1 year ago Dear Alex,
First of all, sorry for our significantly delayed reply!
From this information only, it is hard to guess what is going on exactly. I can only state that the pressure is supposed to decrease for classical hydraulic fracture propagation at a constant rate. PyFrac has reproduced these limiting solutions very well, and a study on the arrest for finite volume injections was also conducted successfully (recently validated by experiments).
I suppose your lab experiments have a non-constant rate and/or are influenced by boundary effects. To help you reproduce the experiments, we need to know precisely what you want to model and what you currently have as input files.
Again sorry for letting you wait, and you are welcome to add information on the experiments you were modeling and your input file for us to provide better assistance.
I want to realize HF modeling in pyfrac. The input data was chosen by the real laboratory experiment on a granite sample. Finally, i want to obtain the same pnet curve as was obtained from the real experiment for the radial fracture. Unfortunately, the pnet is decreasing with a time on pyfrac model while the real pnet values are roughly equal to the constant value. Can you guess, what is the reason of such decreasing? Radial model, toughness dominated regime, Newtonian liquid.