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The shale gas controversy
Transcript of The shale gas controversy
shale gas development will
help reduce greenhouse
use of a 20-year time horizon for global warming potential of methane is
"too short period to be appropriate for policy analysis." production is non-economical
production volumes are far below original estimates
Investment-> quantity produced
shale gas may result in the release of more greenhouse gases
shale gas emits larger amounts of methane- greenhouse gas, than does conventional gas.
Methane- very powerful - stays in the atmosphere 1/10 as long a period of carbon dioxide. If you want to rule the
world do you need
to control gas? Geology Economy: What is the strategy? History 1821- shale gas was first extracted (Fredonia, NY) shallow, low-pressure fractures.
1930- first horizontal drilling
1970- industrial-scale shale gas production,
declining production potential from conventional gas => invest in R&D and demonstration projects
led to directional and horizontal drilling and massive hydraulic fracturing
U.S. government's Energy Information Administration predicts that
by 2035 46% of the United States' natural gas supply will come from shale gas
Persuade other countries to extract shale gas China is estimated to have the world's largest shale gas reserves. Could shale gas production in the US help prevent Russia from dictating higher prices for the gas they export to European countries.
Is it possible that gas consumption will become more significant than oil consumption? Shales have insufficient permeability
To allow significant fluid flow to a well bore
=> create maximum surface area in contact with the shale
Horizontal drilling is often used, with lateral lengths up to 3 km within the shale.
shale gas boom
Modern technology in hydraulic fracturing (fracking) to create extensive artificial fractures around well bores.
shale gas has been produced for more than 100 years in US
wells were often marginally economical.
==>higher natural-gas prices in recent years
==>advances in hydraulic fracturing and horizontal drilling
Have made shale-gas wells more profitable.
Shale gas tends to cost more to produce than gas from conventional wells
UK gas consumption of 3.5 trillion cubic feet
cost of extracting this gas with existing technology would be probably be more than $200 per barrel
UK North Sea oil prices were about $120 per barrel Aubrey K. McClendon, CEO of Chesapeake Energy Barack Obama, USA Texas geologist Arthur Berman Promote shale gas as a natural gas
Persuade other countries to extract shale gas
technological background and experience
most of the countries have to cooperate with them to extract
control of extraction and profits
Costs of shale gas are getting lower
People choose cheaper goods
Shale gas more profitable than conventional gas and oil? In November 2009, US President Barack Obama agreed to share US gas-shale technology with China, and to promote US investment in Chinese shale-gas development. The Organisation for Economic Co-operation and Development (OECD) What are the perspectives? If you want to rule the
world do you need
to control gas? Could shale gas production in the US help prevent Russia and Persian Gulf countries from dictating higher prices for the gas they export to European countries.
Is it possible that gas consumption will become more significant than oil consumption? Conclusions What are the obstacles? South Africa The Karoo Basin,
contains areas of volcanic => risks of shale gas exploration
opposition of environmentalists, farmers and local residents
Quebec Minister of Environment Pierre Arcand stated that
“We are committed to making sure that it is done properly or it won’t be done at all”
India the government-issued law=>
do not include unconventional sources such as shale gas
France French government has suspended gas exploration permits
François Hollande canceled seven permits for shale gas drilling. He declared
"In the current state of art, no one can tell that shale gas and oil extraction by hydraulic fracturing, the only technique known today, is exempt from heavy risks for health and environment."