Monday, July 26, 2010

Where is oil forming today?

From what I know - Oil is formed over millions of years, by animal life which sinks and is covered with silt, which becomes rock, and then a clay layer to cap it, Them more rock etc untill it becomes buried up to 5 mles deep within the earths crust.


So where in the world is this process continuing at the moment?


If it is not constant, then what would cause milions of species to become extinct like this in one go ?Where is oil forming today?
oil is forming anywhere in the Earth's sedimentary layers where lipid-rich organic matter is being heated to over 100 degres celsius. ther are many areas where this is happening right now. An example is the organic-rich Cretaceous and Jurassic age shales in some areas of the Gulf of Mexico. As the oil is generated it expands, fracturing the overlying sediments and the buoyancy of the oil pushes it up into porous sand beds where it accumulates in quantities large enough to produce. There is a lot of information about this process in the web.Where is oil forming today?
It is obviously an ongoing process which not many of us will need to worry over because its' production takes ages to bear fruit, slower than we are consuming it.


As oil becomes more and more scarce it will force us to go NUCLEAR or buy from the unreliable Russia gas field suppliers for our energy needs.


Russian Gas is NOT a very good way to rebuilt a flagging economy that the Bankers and greedy have caused.


Nuclear is the future and needs to be placed in the hands of knowledgeable people who will not abuse it's safe output for the sake of profit or bullying stupidity as happened at Chernobyl.
When i was younger i could never understand why we would run out of oil eventually (i'm currently 21 and doing a geophysics degree) if there were layers of rock under the earth continuously producing oil. What i found out when i was older was that oil wasn't being continuously produced. Rocks need to get to a certain depth and a certain temperature to produce oil. Last term at university we studied one of these rocks the Lias in the area of the isle of white. Now this rock needed to be at a depth of over 2000 odd meters to produce oil in any significant amounts on the geophysical surveys i looked at only two points could be seen to have had oil production there due to the depth which is needed from samples taken in a well in the area. Most rocks don't produce oil and there were only two others in the stratigraphic which would produce oil when found deep enough but neither of those rocks were ever deep enough to produce oil.





What company's are finding when they find a new reservoir of oil is exactly that an area of oil which has been produced by a rock below the one it is trapped in and has then been trapped in a rock due to certain conditions and as such has produced an oil reserve. Usable oil reserves are limited because a rock can be producing oil and the oil can just escape due to there being no trap structure nearby to the oil producer.





Oil can be being produced anywhere where the rocks are hot and deep enough to produce oil we dont know where they are producing it but we can look at geophysical surveys and try and find a layer which we believe produces oil and then find a nearby trap which could contain oil.





The layers of rock have been laied down in years and years but only rocks with organic contents can produce oil and most rocks dont have that.
In every cemetery in the world. New regulations require underground (lined?) vaults to contain the liquid and keep it from contaminating the ground water. Our decomposed bodies will power the cars of the future.

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