The Natural Gas in North America
October 14th, 2008
The disadvantage of natural gas, it’s its transport. Two solutions: 1 ° The pipeline, North America has an extensive network of pipeline but cut off from the rest of the world by oceans. If natural gas shortage in Canada or the USA, the network is connected neither to Africa or the Middle East or Russia. 2 ° The second solution, the LNG and liquefied natural gas (LNG) to fill the peak demand of industrial, commercial and individuals in winter.
The natural gas in North America : production and consumption
A. U.S. production and consumption of natural gas.
The USA are the largest producers and consumers of natural gas in North America. In 2007, consumption of natural gas was 652.9 billion cubic metres (bcm), or 63.2 billion cubic feet of natural gas (bcf). The gas production was 545.9 billion cubic metres of natural gas (52.8 bcf). The gap between production and consumption was 107 billion bcm in 2007. The missing natural gas is imported via pipeline from Canada and the LGN (Liquefied Natural Gas) of the Caribbean, Africa and the Middle East by LNG.
B. Canada: production and consumption of natural gas.
The situation in Canada is the inverse of USA. The production exceeds consumption. In 2007, gas production was 183.7 billion cubic feet of natural gas for consumption by 94 billion cubic feet of natural gas. Canada is in a surplus of 89.7 billion cubic feet of gas exported to the U.S. by pipeline.
C. Mexico: production and consumption of natural gas.
Mexico produces 46.2 billion cubic feet of gas (4.5 bcf) for a consumption of 54.1 billion cubic feet of natural gas (5.2 bcf). Mexico as U.S.A are deficient in terms of natural gas production. Mexico imported 7.9 bcm, USA by pipeline and Africa in the form of LGN.
Evolution of natural gas consumption
With 81%, the USA are the biggest consumers of natural gas in North America. Their situation is therefore crucial to the balance of natural gas prices (U.S. Henry Hub).
A. North American consumption of natural gas.
Looking at the chart of production and consumption of natural gas in North America since 1970, we see that consumption was below the production until 1989, then she slightly exceeded production and from the 1994 consumption takes a little distance with the production.
B. The U.S. consumption of natural gas.
The graph of the natural gas production in North America hide situation of the USA since 1987, which increases the gap between production and consumption. The U.S. oil production is finding it increasiLNGy difficult to meet the growing demand. The number of individuals who consume natural gas in the U.S. rose from 47.7 million to 64.3 million from 1987 to 2006.
Despite higher natural gas prices since 2000, the production can not keep up with rising demand.
Imports of natural gas USA
The U.S. bridge the difference between production and consumption with natural gas imports from Canada via pipeline and LNG of the Caribbean, Africa and the Middle East.
A. Canada :
Even if production in Canada is much lower than that of the United States, it has a crucial role. The Canadian production is three times less important than the USA, but the big difference lies in the fact that Canada consumes unless it produces, this allows him to have a natural gas production and export rest to USA pipeline 107 billion cubic metres of natural gas.
B. LGN: Africa and Middle East.
To transport natural gas over a long distance in the absence of pipeline we transform natural gas to liquid that contains only methane. We remove a portion of its component unnecessary (water, Helium, hydrocarbons…), then submit it to a high pressure and it is cooled to -163 degrees. This transformation requires large facilities initially for transforming natural gas to LNG, and upon arrival to transform the LGN natural gas. Then a few thousand kilometres are covered in very expensive LNG, this is more complex and more expensive than using pipelines. Despite imports from Canada, U.S. need to import LGN (9.6% Liquefied Natural Gas in the World) by tankers from Africa (2.11 bcm Algeria, Egypt 3.24 bcm, 0.5 bcm Equatorial Guinea and Nigeria 2.69 bcm) Middle East (Qatar 0.52,) and Caribbean (Trinidad & Tobago 12.76 bcm).
The situation is simple: a network of gas pipeline (North
America) cut the rest of the world with a big consumer, the USA, which have a
lower production to consumption and a neighbour, Canada, which has a natural
gas production surplus which meets 15% of natural gas demand U.S.. The peak
consumption during winter are filled by imports of LNG (3.2% of total
consumption) to offset the problems of storage of natural gas (limited storage
in depleted fields, salt mines and aquifers).
Dr Thomas Chaize
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