Ah, yes, the deep earth hydrocarbon hypothesis. The Swedish deep bore showed nothing.
"T. Gold once said, "In choosing a hypothesis, there isn't any virtue in being timid." Neither have the Swedes been timid in following Gold's lead by drilling for natural gas in the granite of central Sweden. All the experts predicted this quest would come to naught, because there are no source rocks in the area containing biological materials from which the gas could have been generated. But Gold does not believe that the methane in natural gas comes from buried organic debris. Rather, most methane is primordial and abiogenic, a legacy left deep in the earth's crust when our planet was formed.
The 72-kilometer-diameter Siljan Ring in central Sweden is generally believed to be of meteoric origin. The granite here has been shattered, perhaps to a depth of 40 kilometers. If Gold's hypothesis about the origin of methane is correct, methane might well be found seeping up through this wound in the earth's outer skin. Further, the shattered granite might prove to be a gigantic reservoir of valuable methane. The Swedes decided to drill.
After three years and the expenditure of $40 million, drilling at the Siljan Ring has been terminated. The drill penetrated to 6.8 kilometers before it got stuck. No significant methane had been found."
http://www.science-frontiers.com/sf069/sf069g09.htm
Yet more evidence (as if any more evidence is needed) that humans are self deluded.
The Russians drill for oil to depths as much as six miles, well beyond "fossil fuel" depths. They are more accepting of Gold, and they profit accordingly.
Ah, yes, the deep earth hydrocarbon hypothesis. The Swedish deep bore showed nothing. They did pull up some oil though...from an interview with Gold:
We were not able to produce commercial quantities of oil, because of the bacteriological content which clogged up the wells, but the bacteria which were living there were on the oil that was coming up. The bacteria that were captured at the various levels were just exactly those that would only reproduce at the elevated temperatures that, of course, occur at the various levels. There was no question that these were microbes from down there that were living, in fact, on the oil and gas as their principal food source and that this was their supply of energy.
Let me tell you why I was convinced. We first pulled up 80 barrels of oil, so this was not just trace amounts. Yet, I had been told by I don’t know how many traditionalists that this was an absolutely mad place to look for oil.