Swedish to English Tech/Engineering Construction / Civil Engineering

Hello

I've really tried on this.

Once again no context but it's a kind of hollow rod driven into the ground through which water can then rise.

I wanted to say "pump well" but I'm not sure as I can't see any pumps in my searches for the Swedish term. I have the impression

I also wondered if it could be some kind of "fountain well"" but they seem to be more natural than the Swedish device.

Does anyone know please?

Thanks