[Error message: Newton-Raphson didn't converge after 999 iterations, max residual = 0.000991, Xi = 0.0000 Largest residual(s)]

Hi Jia, 

 

Thank you so much for your help and replies. 

I will work on them now and try applying your recommendation. 

I do intend to supress minerals only. thank you for this notice.

Many thanks,

Nourah

[Error message: Newton-Raphson didn't converge after 999 iterations, max residual = 0.000991, Xi = 0.0000 Largest residual(s)]

Hi Jia,

Thank you for your reply. 

I am trying to model CO2-Rock-water interaction. I have the basis as the water analysis data and the kinetics are the mineralogy input with their surface area and rate constant. and I reacted 3.5 mol of CO2 and the set the time for 0.2 yr. Then I picked up the fluid to simulate the CO2 for 30yr with the same basis and mineralogy. however, I want the CO2 to be stable in the 30 yrs. so I swapped the H+ to CO2 partial pressure and set to 1100 psi in the basis and fixed the CO2 in the reactant pane to make it stable. 

I am also interested to see the effect on mineral dissolution and precipitation.

I have attached my input files. and I hope what I explain makes sense of what I am trying to model.

The CO2-N1 is the initial successful reaction. The N1 pickup is the one with the error. 

 

Many thanks for your help in advance. 

Nourah

 

 

CO2-N1-supressed-0.2 yr.rea N1-pickup.rea

[Error message: Newton-Raphson didn't converge after 999 iterations, max residual = 0.000991, Xi = 0.0000 Largest residual(s)]

Hello,

I am having trouble with my model. For start, the reaction model was successful when I reacted CO2 partial pressure with the water analysis data and minerals for one month, then I picked up the fluid and saved them, when I opened the picked-up script, I only swapped the pH to the CO2 partial pressure and increased the time to 30 yrs.

I Keep getting the same error message: Newton-Raphson didn't converge after 999 iterations, max residual =    0.000991, Xi = 0.0000 Largest residual(s).

I tried playing with parameters (CL, HCO3), I have also tried changing the charge balance to Na., But it does not work.

please can you help me figure this out and solve it. 

[How can I use REACT to flush CO2 in a model to demonstrate the CO2-water-rock interaction ?]

Hello,

I am trying to use react to model the reaction of CO2 with water and rock. 

I was able to demonstrate the affect of CO2 partial pressure with pH by sliding the CO2 fugacity .

however I am more interested into the reaction model of co2-water-rock. 

Could you please help me or direct  me , my knowledge in the software is very limited. 

 

Best wishes,

Nourah