Crude-By-Rail Expected to Triple as New Oil Pipelines are Beset with
Protests and Regulatory Hurdles: Why Pipeline Transport of Oil is Safer,
Cleaner, Cheaper, and More Sensible
It is considerably more expensive to ship crude oil by rail
compared to pipelines. Pipelines are also a much safer way to transport crude
than by rail. However, due to the time constraints in building oil pipelines due
to regulatory hurdles and considerable public opposition to them, both in the
U.S. and in Canada, it is inevitable that more and more North American crude
will by shipped by rail. Shipping by rail also requires the burning of massive
quantities of diesel fuel compared to pipelines which only utilize pumping
every few hundred miles. This makes the carbon footprint much higher for
crude-by-rail vs. pipelines. The possibility for spills and accidents is higher
for the trains, and although the spills are smaller than for pipelines, the
accidents can be devastating.
It has recently been reported that shipping crude by rail is
expected to double in 2018 compared to 2017 and triple in the coming years and much
of that crude will be heavy oil from Canada’s Alberta tar sands fields and
Western basins and be shipped to the U.S. Gulf Coast. One analyst predicts that
Canadian crude exports via rail will increase from 200,000 barrels per day to
600,000 barrels per day by 2021. Crude is still in high demand in North America
and is expected to remain that way for a while so the assertions by some
economists that Canadian heavy crude, especially tar sands crude, is not in
demand due to its quality, are simply incorrect. However, I do know that transporting
heavy tar sands oil via pipeline requires the addition of diluting agents,
basically lighter hydrocarbons such as natural gasoline and condensates. This
helps to decrease the viscosity of the heavy crude so that it can flow more
readily in pipelines. Some have argued that the heavy crude is more likely to spill from pipelines but this is not born out by statistics. It may be harder to clean up after a spill though, but I am not sure of that either. Despite the higher cost to ship via rail the heavy Canadian
crude can more than make up that cost by shipping to the U.S. Gulf Coast where
it is in high demand. The Canadian issue is the need to get crude to the higher
price markets in the U.S. even if the cost to ship by rail is $15-19 per barrel
compared to $7 per barrel if transported by pipeline. The gridlock in the
construction of the Keystone XL pipeline has been lifted somewhat by Trump’s approval
of the project but for now the only solution is to ship by train.
While pipeline spills are often much higher volume spills
than those by train or truck, there are far more spills via train and truck.
There is also the concerning issue of the flammable nature of the crude. Bakken
crude from North Dakota in particular has been quite explosive in accidents.
Requirements for better built tanker cars and vapor pressure limits to decrease
volatility before shipping may help to prevent future explosions. Train speed
limits may also help.
This is another situation where anti-pipeline activist
environmentalists are actually causing more potential environmental damage, more
pollution, more carbon emissions, as well as hindering profits by blocking and
delaying the safest way to transport a product in high demand. While they also
seek to limit crude-by-rail, referring to them as “bomb trains,” at the same
time they are enabling more trains by opposing pipelines.
References:
Cenovus to move 100,000 bpd of oil by rail to Gulf Coast – by Nelson
Bennett, in BIV.com, Sept. 27, 2018
No comments:
Post a Comment