Sorry I don't have time for a detailed reply now unfortunately.
I think it is important to realise that the injection of fluid doesn't *cause* the production well to produce steam or pressured brine, it simply closes the loop by returning the used fluid from a well doublet back into the ground so that the fluid reservour is not diminished. The returned fluid then percolates through the hot rocks and hopefully returns to the original temperature and pressure to get dragged up the production well/s.
The production of steam depends effectively on releasing the energy in superheated water. This fluid being way over 100 degrees escapes and flashes into steam at surface which is what drives the turbines. This steams cools down and is re-injected into the well as cool brine/water. The energy balance is thus that the energy required to inject has to be LESS than the energy generated in the turbine. So I think you need either a really high temperature OR really high pressure (or preferably both) to get a decent energy output.
If there is no *natural production* of steam to the surface there is nothing that can be done to speed up the flow except using more energy to raise deep pressure to force out the steam, but the energy required to build up the pressure would be less than the resultant energy output- we are heading to perpetual motion machine territory otherwise.
What is worrying is that GDY were unable to demonstrate a viable process in the various (sometimes ill fated) Habanero tests. PTR seem to have shown both a much lower temperature and a much lower pressure than GDY.
Again, please believe I am genuainely sad to be a doom-sayer.
PTR Price at posting:
9.5¢ Sentiment: Sell Disclosure: Not Held
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