reply to post by aorAki
I used to do oil & gas reservoir stuff in Calgary, Alberta, Canada
and Shell (Royal Dutch Shell Group) has reports in their own library
of the abiotic origin of SOME oil within the geostrata of today's
When drilling from the Top (topmost layer of soil or rock) to the
Bottom (Precambrian formations) , Biotic oil is a byproduct
of the carboniferous era which saw the enormous uptake of
carbon by the giant flora and fauna of the day.
Dead flora and fauna + time + layers of sediment + pressure =
heat = decomposition = coal = biotic oil.
That is a scientific fact where the above ingredients WILL
eventually get you oil (hydrocarbons)
Abiotic Oil is not oil in the organic-origin sense but rather
infused carbon within the lower geostratigraphic layers
(that has little flora and fauna-based biomass) which has
had hydrogen molecules added by way of chemical processes
more related to vulcanism and molecular integration
rather than the biomass disintegration found in the
upper layers of Earth strata.
On a chemical basis, if I take gaseous hydrogen (mostly as
sulfides) and infuse carbon into it with lots of heat, pressure
and crustal movement deep within the earth, i'll eventually get
long chains of hydrocarbons that will in themselves decompose
into shorter chains giving me methane gas, pentanes, hexanes, etc.
The longer Hydrocarbon chains that survive the geo-forces
will eventually collect into pools within deep formations
which can be drilled for. These HC (Hydrocarbon) formations
are at MUCH HIGHER pressures and FAR GREATER depths than
biomass-based HC formations so they are economically
unfeasible until prices go higher than the $150/barrel range.
In some estimates made by friends in the industry,
there could be from 4 to 12 TRILLION barrels of Abiotic oil
at levels that are located near or BELOW the Precambrian
strata, mostly near crustal boundaries (i.e. deep underneath
the pacific coastal Ring of Fire) and deep into areas
near magma chambers that have LOTS of gaseous hydrogen
sulfide and infused carbon within hard rock formations.
When volcanic cracks form near the magma chambers,
the hydrogen will diffuse into exposed rock containing
loosely bound carbon molecules to first form long HC chains
that break down under heat and pressure to form the
shorter chains. If the cracks seal quickly enough, the longer
HC chains will survive and cool enough to form liquid hydrocarbon
at a quality rating of LIGHT SWEET CRUDE (i.e. less than 0.5%
Sulphur and almost no sedimentary biomass) which pool into
many smaller reservoirs up to a few hundred or thousand cubic
metres in size that can then aggregate into large reservoirs
that can be cubic kilometers in size as tectonic plate movement
forces individual pools to merge.
While very deep, these pools are very viable in that they are
actually full blown pools of liquid hydrocarbon and NOT widely
diffused within the sedimentary layers requiring the usual and
expensive well injection to get it out. It's own pressure will
move the liquid HC to where we want to collect it.
This type Abiotic oil would be MOST COMMON in areas of high
vulcanism and rigid igneous (not sedimentary) rock formations.
Mostly right off the coasts of British Columbia, Washinston state,
Southern Alaska, Indonesia, Eastern Japan and anywhere else
DEEP and near crustal boundaries:
See the black lines and red dots on this tectonic
plate boundary photo to find likely places for Abiotic Oil:
See this page for a primer on Abiotic Oil (also known as
Abiogenic Origin Oil:
Depth estimates would be in the area of
8 km to 40 km down for Abiotic oil which is quite
a bit further down than the usual 1500 feet to
20,000 feet for many modern oil & gas wells.
It's a matter of economics, but one poster is correct that
there are ENORMOUS SUPPLIES of such oil down there but
it is currently NOT FINANCIALLY PRACTICAL to drill down
to 8 to 40 km.
For a more localized source of Abiotic oil, I suggest near the large
Caldera in Wyoming under Yellowstone Park at around
25,000 metres (78,000 feet or so) down.
I would expect that there would be in excess of a trillion barrels
of Abiotic Light Sweet Crude Oil within that area alone!
Now whether it's a GOOD IDEA to continue to BURN hydrocarbons
as fuel is a whole 'nother question in itself. But if we really,
really want and need it, it's there!
[edit on 2009/11/18 by StargateSG7]
[edit on 2009/11/18 by StargateSG7]