Peak oil?
http://pubs.usgs.gov/fs/2009/3028/pdf/FS09-3028.pdf
http://pubs.usgs.gov/fs/2009/3028/pdf/FS09-3028.pdf
Venezuela has long been known to hold some of the worldâs biggest deposits of oil sands â thick bituminous resources that require substantial investments and refining methods to develop.
In a new assessment (PDF), government geologists with the United States Geological Survey have provided a dramatic new estimate of how much oil is âtechnically recoverableâ from these oil sands, in an area known as the Orinoco oil belt: 513 billion barrels of heavy oil.
The tally far exceeds previous estimates of around 235 billion barrels, and it represents âthe largest accumulation ever assessedâ by the U.S.G.S.
The Orinoco is a critical component of Venezuelaâs claim to holding the worldâs biggest oil reserves, ahead of Saudi Arabiaâs 264 billion barrels. But while most of the oil found in the Middle East can be extracted relatively easily through traditional production methods, the Orinocoâs oil sands are tougher to produce.
Saudi officials, meanwhile, claim that their potential resource base far exceeds their official reserves.
Venezuelaâs government has outlined grand plans to bring foreign companies, including Chinese and Indian firms, to invest in the region, but it has also been mired in contract disputes with former American partners.
Petroleos de Venezuela, the countryâs state-owned company, has estimated that the Orinoco belt held a total resource base of 1.3 trillion barrels of oil, but said only a fraction of that could be produced economically.
