Page 42 - Introduction to Petroleum Engineering
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26 THE FUTURE OF ENERGY
Dry natural gas consumption
30000
United States China Japan
Russia Iran
25000
Billion cublic feet per year 15000
20000
10000
5000
0
2000 2002 2004 2006 2008 2010 2012 2014 2016
End of year
FIGURE 2.4 Top five dry natural gas‐consuming nations as of 2014. (Source: U.S. Energy
Information Administration Petroleum (2015); BP, 2015.)
High concentration
Easy to extract
Small amount
Quality of resource Cost of extraction
Low concentration
Difficult to extract
Large amount
FIGURE 2.5 Illustration of a resource triangle.
