David, <You could stick gas turbines at the well head to generate electricity and push part of the exhaust back down into the well?>
Yes, but mostly oil is not produced where it is to be consumed. It needs to be moved, usually thousands of kilometres, which means the electricity can't be generated at the wellhead.
<[since liquid CO2 is a LOT more in quantity than the hydrocarbon which produced it due to the O2 being added from the atmosphere].
It is more massive but the gas volume would be no more than the methane extracted? I don't know what happens when liquified.... >
Carbon Dioxide needs 400 metres of water pressure to keep it a liquid at ambient temperatures. It can be a solid at atmospheric pressure if kept cold enough, which is what "dry ice" is.
I was thinking of using the liquid CO2 dumped down a well to displace oil, not gas. The quantity of CO2 liquid is several times the quantity of the liquid hydrocarbons which produced it, due to the large oxygen atoms being added, replacing the hydrogen.
<Here's another one, diesel plus 3% methanol [or ethanol] plus [approximately] 3% de-ionized water
Water in fuel?>
Yes, 3% is no problem at all. It improves the combustion process. The thermal loss is negligible. Even at 30% water, as in Orimulsion, the thermal losses are small. Orimulsion is burned with the water still in it. orimulsionfuel.com
<Volcanism is heated by radioactivity which is what keeps the interior of the Earth warm.>
But the gases, which make the bang, come from subducted hydrocarbons, water, etc. Some lavas have no gas and just run gently out of a volcano. Others, such as pumice eruptions, are mostly gas and really go with a bang, such as Taupo in New Zealand. The column of magma turns gaseous as the pressure comes off after the eruption starts, like a geyser, shooting the column 10 km high, which then collapses back down, sending a surge of molten, frothy hot stuff out in a hundreds of kilometres per hour tsunami of molten pumice.
As the hydrocarbons come out of the ground, super hot in contact with red hot magma, they mix and burn in the air, making for pyrotechnics in a big way, with much noise and drama. The radioactive action keeps it all hot and runny and able to flow.
Okay, back to the regular programme of financial collapse [though if I lived in Taupo or Rotorua, I'd be more worried about magma than markets].
Mqurice |