Major Characteristics
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- Natural gas is a
colourless, odourless, environment friendly energy source. It is a gas
consisting primarily of methane. It is found associated with fossil
fuels, in coal beds, as methane clathrates, and is created by
methanogenic organisms in marshes, bogs, and landfills. Natural gas is
commercially produced mostly from oil fields and natural gas fields.
- Before natural gas
can be used as a fuel, it must undergo extensive processing to remove
almost all materials other than methane. The by-products of that
processing include ethane, propane, butanes, pentanes and higher
molecular weight hydrocarbons, elemental sulfur, carbon dioxide, and
sometimes helium and nitrogen.
- The major difficulty
in the use of natural gas is transportation and storage. While,
pipelines are used for inland transport, it cannot be used under
oceans, which is essential for global trade. Liquified Natural Gas
(LNG) is a proven commercial technology for transporting natural gas
across oceans. However, as special ships and separate LNG receiving
terminals are required, LNG projects are highly capital intensive in
nature.
- The major
applications of natural gas are:
- Fuel source for
power generation
- Domestic /
Commercial utilization for cooking, warming as piped natural gas
- Industrial uses:
fuel source for boilers, ovens, air conditioners etc
- Feed source for
fertilizer manufacture
- Compressed Natural
Gas (CNG) is being widely used as an alternative automobile fuel
- Production of
petrochemicals like methanol etc.
- The other
fractions obtained in natural gas processing like butane and propane
are used in manufacture of LPG (LIquified Petroleum Gas)
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Global Scenario
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- The world's proven
natural gas reserves as on January 1, 2009 are estimated at 185.2
trillion cubic metre, of which almost three-quarters are located in
the Middle East and Eurasia. Russia, Iran, and Qatar together account
for about 57% of the total reserves.
- Natural gas
consumption has increased strongly over the past decade. However,
despite this rising consumption, reserves-to-production ratios for
most regions are substantial. Worldwide, the reserves-to-production
ratio is estimated at 63 years.
- The total global
production of natural gas in 2008 is estimated to be 3065.6 billion
cubic metre with the main producing countries being Russia Federation
(602 billion cubic metre), US (582 bcm), Canada (175 bcm) and Iran
(116 bcm).
- The total global
consumption of natural gas in 2008 is estimated to be 3018.7 billion
cubic metre with the main consuming countries being US (657 bcm),
Russia Federation (420 billion cubic metre), Iran (117 bcm), Canada
(100 bcm) are the major consumers.
- Globally, industries
consume the largest portion of natural gas, followed by the power
sector. Industrial consumption is expected to be around 40% of total
global consumption by 2030 as projected by Energy Information
Administration.
- The total global
trade in 2008 as piped natural gas and as LNG is reported to be 587.3
bcm and 226.5 bcm. While major exporters of piped natural gas are
Russia (154 bcm), Canada (103 bcm) and Norway (93 bcm), the major
importers are US (104 bcm), Germany (87 bcm) and Italy (75 bcm). The
major exporters of CNG are Qatar (40 bcm), Malaysia (29 bcm),
Indonesia (27 bcm) and the major importers are Japan (92 bcm), South
Korea (36 bcm) and Spain (30 bcm).
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World Natural Gas Markets
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- Chicago Mercantile
Exchange (CME), which has acquired New York Mercantile Exchange
(NYMEX), runs the world's most liquid natural gas derivative market.
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Indian Scenario
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- Natural gas has
gained prominence in India too as in the rest of the world over the
last decade. India has consumed around 41.4 bcm of natural gas in
2008, of which domestic production is 30.6 bcm and imports as LNG has
been 10.79 bcm.
- The share of imports
is expected to increase in the coming years and cross 30%, from
current level of around 25%.
- Fertilizer (41%) and
power (37%) are the major users of natural gas in India. The
fertilizer sector in India is highly subsidized by the Government and
it fixes the rate at which natural gas is provided to the fertilizer
manufacturing units.
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Market Influencing Factors
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- Natural gas prices,
too like that of any other commodity are a function of market supply
and demand. As there are limited alternatives for changing consumption
or production in the short run, changes in supply or demand over a
short period often result in large price movements.
- Strength of economy,
weather and crude oil prices are the major demand-side factors
influencing price. Severe winter in developed countries can increase
demand for domestic and commercial heating and is a major influencing
factor.
- The supply side
factors influencing prices are variations in natural gas production,
imports and storage levels. Hurricanes and severe weather can disrupt
supply.
- Macro-economic
factors like exchange rates, interest rates and other economical
indicators do influence natural gas prices.
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Measurement
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1 mmBTU (million British Thermal Units) =25.2 SCM
(Standard Cubic Metre)
1 SCM = 1 cubic metre at 1 atmospheric pressure and 15°C
1 TCF (Trillion Cubic Feet) = 4 MMSCMD (million metric standard cubic metre
per day)
1 MMTPA (Million tonne per Annum) of LNG = 4 MMSCMD
1 MT of LNG = 1300 SCM
Power from 1 MMSCMD gas = 220 MW (Mega Watt)
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