What Happens When America No Longer Needs Middle East Oil?
An oil tanker is seen off the port of Bandar Abbas, southern Iran, on July 2, 2012.Full Story
“Geologist [I'm Climate Change]”
Since: Mar 07
#1 Dec 5, 2012
Hmm. There may still be a demand for classical mideast crude as it is barely mature oil in a very large very porous reservior.
The resulting classical Saudi style crude is absolutely lousy for pertoleum and not all that good for diesel, but as a result of its high wax and aromatic wax tars content it makes absolutely brilliant asphalt blacktop.
Natural examples outcropping in Kuwait & the S. Iraqui shoreline after gulf war 2 (the Iraq invasion of Kuwait) provide excellent examples of this blacktop when mixed with the local sand.
For road infrastucture projects, the mideast crude will still be in demand, they may not run out for milennia @ that demand rate.
Modern road tarmac often uses a byproduct of classical Petroleum grade light oil which has a high aromatic content and few wax oils. Problem as shown in UK is that this oil with its high aromatic content has a high annealing temperature and tends in most cases to become brittle in cold weather. The result of usage of this type of asphalt is that it generates potholes very rapidly and all cut through hole edges never anneal and ultimately will break up.
An American similar example may be the Athabasca tar sands where the bugs digesting the oil left the aromatics behind, in many cases the aromatic content is high but too high a melting temperature producing brittle non annealing behaviour,(all the wax fraction was digested out); so the Mideast goop with the wax oil fraction remaining is more useful for blacktop.
A further oil grade typical for petroleum is overmature (cooked) oil fields which were deeply buried and cracked. This type produces high benzenoid content petroleum grade oils, and a lot of short chain (c2-c6) petroleum gas. The cracked fraction in this case contains an overabundance of polybenzenoid asphalt dissolved in the light fraction petroleum grade oil. Once the light oils are gone the reservior produces asphaltic tar, which again will be brittle. There are a number of these fields now present (such as Oman) and tar from these fields will not produce decent blacktop but will be rather handy for polybenzenoid raw materials (styrene etc.) if a cracking process can be found that works. Also good for athabasca tar if the same in plant cracking & refining technique works out.
Hope this is useful for future usage of mideast crude, & its proper place.
Have a nice day: Ag
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