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Academic Articles on Shale & Coal Seam Gas
National Academy of Sciences of the
United States of America
November 25, 2013 - Government estimates for
total US methane emissions may be biased by
50%, and estimates of individual source sectors are even more uncertain.
We find greenhouse gas emissions from agriculture and fossil
fuel extraction and processing (i.e., oil and/or natural gas) are
likely a factor of two or greater than cited in existing studies.
August 19, 2013
This work reports direct measurements of methane emissions at 190
onshore natural gas sites in the United States.
These measurements will help inform policymakers,
researchers, and industry, providing information about some of the sources of
methane emissions from the production of natural gas, and will better inform and
advance national and international scientific and policy discussions with
respect to natural gas development and use.
Greater focus needed on methane leakage from
natural gas infrastructure
February 13, 2012
There is a need for the natural
gas industry and science community to help
obtain better emissions
data and for increased efforts to reduce methane leakage in order to
minimize the climate footprint of natural gas.
Increased stray gas abundance in a subset of drinking
water wells near Marcellus shale gas extraction
June 3, 2013
We analyzed 141 drinking water wells across the Appalachian
Plateaus physiographic province of northeastern
natural gas concentrations and isotopic signatures with proximity to
shale gas wells.
Methane was detected in 82% of drinking water samples, with
average concentrations six times higher for homes <1 km from natural
gas wells (P = 0.0006).
At what rate will the new hydrofractured horizontal wells in shales continue to produce gas?
October 2, 2013
We analyze the simplest model of gas production consistent
with basic physics of the extraction process.
Its exact solution produces a nearly universal scaling law
for gas wells in each shale play, where
production first declines as
1 over the square root of time and then exponentially.
Shale gas development impacts on surface water
quality in Pennsylvania
January 8, 2013
Concern has been raised in the scientific literature about the
environmental implications of extracting natural gas from deep shale
formations, and published studies suggest that shale gas development
may affect local groundwater quality.
Methane contamination of drinking water
accompanying gas-well drilling and hydraulic fracturing
April 14, 2011 In aquifers overlying the
Marcellus and Utica shale formations of northeastern Pennsylvania
and upstate New York, we document
systematic evidence for methane
contamination of drinking water associated with shale-gas
We conclude that greater
stewardship, data, and—possibly—regulation are needed to ensure the
sustainable future of shale-gas extraction and to improve public
confidence in its use.
Potential well water contaminants
highest near natural gas drilling, UT Arlington
A new study of 100 private water wells in and near the Barnett
Shale showed elevated levels of potential
contaminants such as arsenic and selenium closest to natural gas extraction
sites, according to a team of researchers at UT Arlington.
Groundwater Contamination May End the
12 September 2013 -
Scientific American - In Pennsylvania, the closer you live to a well used to
hydraulically fracture underground shale for natural gas, the more likely it is
that your drinking water is contaminated with methane.
This conclusion, in a study published in
the Proceedings of the National Academy of Sciences USA in July, is a first step
in determining whether fracking in the Marcellus Shale underlying much of
Pennsylvania is responsible for tainted drinking water in that region.
Renewables to surpass gas by 2016 in
the global power mix
26 June 2013 -
Power generation from hydro, wind, solar and other renewable sources
worldwide will exceed that from gas and be twice that from nuclear
by 2016, the International Energy Agency (IEA) said in its
second annual Medium-Term Renewable Energy Market Report (MTRMR).
IEA sees growth of natural gas in power
generation slowing over next 5 years
20 June 2013 -
Natural gas will continue to increase its share of
the global energy mix, growing at 2.4% per year between now and
2018, the IEA said in its Medium-Term Gas Market Report (MTGMR)
However, this projected growth rate is
lower than the IEA's forecast last year of 2.7%, due to persistent demand
weakness in Europe as well as difficulties in upstream production growth in the
Middle East and Africa.
IEA sets out the “Golden Rules” needed
to usher in a Golden Age of Gas
29 May 2012 - Exploiting the world’s vast resources of
unconventional natural gas holds the key to a golden age of gas, but
for that to happen governments, industry and other stakeholders must
work together to address legitimate public concerns about the
associated environmental and social impacts.
But if the social and environmental impacts
are not addressed properly, there is a very real
possibility that public opposition to drilling for shale gas and other types of
unconventional gas will halt the unconventional gas revolution in its
IEA report sees bright future for
natural gas over next 5 years
5 June 2012 - Natural gas is well on its way to a bright future,
according to a new report from the International Energy Agency (IEA)
that projects China will more than double consumption over the next
five years while lower prices from the unconventional gas revolution
will continue to benefit the United States.
Global gas trade will expand by 35%, driven
by LNG and pipeline gas exports from the FSU region; most of this expansion
occurs from 2015 onwards, following a period of further tightening of global gas
IEA report sees scope for
transformation of Asia-Pacific natural-gas market
6 February 2013 - Asia is expected to become the world’s
second-largest gas market by 2015. And yet this
market is dominated
by long-term contracts in which the price of gas is linked, or
indexed, to that of oil.
In recent years, this has helped keep Asian
gas prices much higher than those in other parts of the world, leading to
serious questions about the sustainability of the system and its effects on
gas exports raise prices for consumers?
Oil and gas companies already
envision construction of about 17 new LNG shipping terminals, which
could export LNG equivalent to fully one-third of current domestic
consumption. The article discusses conflicting views on how
exports on such a massive scale might affect prices paid by
consumers, including the chemical industry, which uses natural gas
as a mainstay raw material.
The Powder River Basin
The information available indicates that
currently hydraulic fracturing is not widely used in this region due to
about the potential for increased groundwater flow into the coalbed methane
production wells and the consequent collapse of open hole wells in coal upon
Wyoming Department of Environmental Quality
While no one can guarantee that an accident
or equipment failure will not occur, the Niobrara Shale play is an extremely
high profile development and both the industry and
regulatory agencies are
watching the development carefully to insure environmental protection
requirements are being met.
It should be noted that fracking has been a
common practice in the oil & gas industry for many decades. It is fracking of
shale formations which is a relatively new development.