meshmaker error, increments problem

There are a bunch of lines at the start of your input file that TOUGH does not understand.  That is what the message "input conversion error" is telling you.  For MESHMAKER, the input file should start with one line that is the title line and contains whatever you want.  Then the next line has MESHM in columns 1-5.  This is a keyword that invokes MESHMAKER.  The next line has XYZ in columns 1-3, and the remainder of your input file should be okay.  EXCEPT, that you have tabs separating entries instead of spaces in some places.  TOUGH cannot read tabs.  I modified your input file to make it legal, and it runs for me.  See if it works for you.  I did not check that it is actually creating the grid you want - just that it runs.  Christine

You are on the right track with your GENER block, but there are a couple of things to check.

First, if you want to inject heat (units Watts, like with an underground heater), you use the HEAT keyword in GENER, but if you want to inject heated water, you use the keyword COM1, which means you are injecting water.  To make the water hot, you either specify the enthalpy (J/kg) in the next 10 columns after the mass injection rate (kg/s).  The alternative is to make the specific heat of the injection elements huge (so their temperature will never change), and set the desired injection temperature as an initial condition in INCON.  You do this by making the injection elements a distinct material in ROCKS, with a specific heat of something like 1.E30.

Now, to use the NSEQ and NADD option, you need to see how your grid is ordered.  With the built-in MESHMAKER in TOUGH3, the elements are ordered by Z, so your NADD would be 1.  But, I think you must be using the MESHMAKER in TOUGHio-dash, which might order the grid differently, so check that adding 89 to the element order gets you to the next well element.  Also, I think NSEQ should be 158=254-96?  I actually haven't used the NSEQ/NADD option for a long time, so you should check the GENER output and make sure the code is doing what you want.

Also, with the built-in MESHMAKER, you would have to specify your wells by hand.   If the TOUGHio-dash MESHMAKER assigns wells for you, you should check with @Keurfon_Luu if it is not working for your second well, or you could just assign it by hand, the way you have in your GENER block.  Usually a production well does not need to have a distinct material in ROCKS.

I hope this helps.  For a problem like this it is usually a good idea to just run a few timesteps at first, and check the output carefully to make sure that the code is doing what you want.  For example, I would expect pressure to be increasing around your injection well and decreasing around your production well.  Another good thing to look at is the flow rates between the well elements and their neighbors, to make sure flow is going in the correct direction.  To include flow rates in the output file, you need to be sure KDATA>1 in the PARAM block.