Any pump set at ground level will only lift water from a well about 28-29-feet depth when new--less at it wears. Same limitation for 'jet-type' pump.
This applies to PTO-driven roller- or gear-type pump too.
When you talk about submersible pump you're limited to 120-vac (extremely shallow, low volume) and more commonly 240-vac for any depth at all.
You mention using a 12-vdc pump that I know nothing about nor do you address the depth of your well. You need to check the head pressure against which that submersible pump will be working. If your well is very deep you may find that the pipe or hose standing full of water on 'top' of the pump discharge will be such that the pump can't push it out. Water exerts about 0.5-psi for every foot of depth. If the pump has 20-psi output and the well's water level is 40-ft deep it won't pump water out of the hole.
Solar pump manufacturers offer 12-vdc submersible pumps but most if not all are designed for low-rate virtually continuous pumping instead of producing any appreciable volume (high gallons per minute rate).
You could look into running a 120-vac submersible off an inverter hooked to your tractor battery but I think you'd find the total package cost prohibitive.
Use this to determine power requirements:
Volts x Amps = Watts
so----Amps = Watts divided by Volts
Example using 0.5-hp motor where 1-hp = 746-Watts
Amps = (746 x 0.5) divided by 12-volts = 31-Amps from 12-vdc system
I think this would overload the charging system and battery pretty fast if used more than a few minutes---if no fuses or links blew.
If trying an inverter, you'd have to just about double the electrical draw due to inefficiencies of how inverters work.
You may want to consider one of the less expensive solar pumping systems (and maybe a black plastic storage tank). If the solar pump moves 0.5-gal per minute for 12-hrs of sunlight you'd have 360-gals of water produced.
For an extreme, depending on your needs, you could run a PTO-driven generator to power a submersible pump.
Any any case you need to evaluate the productivity of your waterwell. You may find it only makes a few gallons per minute no matter how hard you pump it. Which if run dry would kill most pumps very quickly.
Please advise back how you proceed that we may all learn.
