XFEM quick question
Nadia Shafie Zadeh shafieza <at> ualberta.ca [Abaqus] <Abaqus <at> yahoogroups.com>
2016-07-15 16:48:23 GMT
I am modeling hydraulic fracturing test for in situ stress measurement in clay shale (small scale with limited injection fluid) using XFEM method. before injection the fracturing fluid into the test interval, I have two cycles of sleeve fracture (pressuring packer, like pressuremeters or dilatometers to create a tensile crack and prevent any premature fracturing at the packer level during the HF test), now my question is when I apply the packer pressure on the test interval as distributed pressure or concentrated force (I tried both), I could not see displacements of test interval or induced stress though I have 25 and 26 MPa for the fist and second cycle respectively. How can I get the displacement/induced stress applied on the same test interval for hydraulic fracturing before the injection the fluid into the test interval for hydraulic fracturing?
It would be highly appreciated if you share your experience/idea for solving this problem, Thanks in advance.
Posted by: Nadia Shafie Zadeh <shafieza <at> ualberta.ca>
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