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XiaoMao

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  1. In my conceptual model, geochemical reaction will produce some clay minerals, and then the clay minerals swelling will clog or block porosity in the reservoir . so, I am not sure if Petrasim can simulate this process?
  2. There are three ways to set a constant boundary in Petrasim, First, set the boundary cells to fixed state; Second, set the boundary cells to 1E50 or more Third, set an extra cell which has large or very large volume, and then connect the extra cell to boundary cell. Actually, I am a beginner for Petrasim, so I am not sure whether these three ways are right. Please let me know if I make mistake, THANKS! My question is that there is a large lake, and my model domain is the bottom of the lake, so what type should I use when I set the top boundary? I focus on pressure, saturation and temperature, I do not know what type boundary is more appropriately. Thank you very much!
  3. wa, Tom Thanks a lot I will try to convert it by gwb. I am doing some model by gwb.. Thansk again. Xiao
  4. I exported permeability vlaues from Plot Line, they should 1E-12, 1E-13 1E-15 However, All of these are Zero. How to solve this problem? Permeabi. 0 0 0 0
  5. OH, can I calculate them by myself ? CO2, H2S and H2 consist of mixed gases. They are injected into my model. I can get them CO2(g), H2S(g), and H2(g), so can I calculate by some method to convert them to aqueous?
  6. I have run my model which describes a process of injection of mixed gases. However, I only get the results of CO2(g), H2S(g). How can I convert them form gas to aqueous? I wish I can get the result of CO2(aq) and H2S(aq).
  7. When I run my model, after 3.4 days, the DT is always 0.01s . Should I wait´╝č Or How can I adjust model parameters? Do you have any suggestions?
  8. Recently, I would like to model the Mixed gases injection process. I have used a Extra Cell as a injection source. However, I do not know how to determine the Air Mass Fraction. Actually, I want to inject a hot mixed gases into a aquifer, and I have known the temperature, but I do not know the partial pressure. Only I known is that the concentration of gas in final water, CO2 is 17mmol/kg. So, How can I set the initial condition at the Extra Cell? When I set the Air Mass Fraction is 0.5 or 0.55, it will stop. The model can run if I set the Air Mass Fraction is 0.6, but it can not reach the final time I set.
  9. Yes you are right The model can run when I change the sg from 0 to 1. but the DT will become 0.01 after run 10 days do u know how to solve this problem? by the way, can the air mass fraction be 0.5 when I want to inject mixed gases?
  10. u Could you help me to modify my model to simulate a process that can inject NaCl and hot mixed gases from Extra Cells? Thank you very much
  11. The results of my model show that the extra cell can inject heat, but it can not inject solute and gas. I do not know why.. Could anyone tell me?
  12. According to Alison's suggestion, I used the Extra Cells to inject a mixed gases which include CO2 and H2S. In my model, the Extra Cell was set as followed : no sources/sinks, and the pressure was set a little bit higher than connected cell, and the density of material was set 1E99. Gas zone: CO2=120, H2S=120 However, the results show that CO2 ranges from 9.72E-6 to 0.000913, and H2S ranges from 0 to 1.20E-24. can anyone tell me how to get a more higher CO2 and H2S?
  13. Thanks I am trying to use the EXTRA cells to implement. I would post my results to share with you if I achieve it .
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