The Saudi new fields aren't of the same quality as the old ones, so more refining etc etc
So production and that's what peak oil is about not reserves or quantity.
"The heritage supergiants are those mature fields that together with Ghawar and Abqaiq have made up Saudi production for the last 50 years. These include Safaniyah, Berri, Shaybah, Qatif, Marjan, Zuluf, Abu Safah and the Hawtah trend fields. These fields are much less mature than Ghawar and it is difficult to estimate their future performance. The oil in Safaniyah, Zuluf and Marjan is very sour (contains high sulphur content) which creates refining and hence marketability problems. I consider it likely that these fields are not producing flat out but are production constrained owing to poor marketability of their oil. The Saudis are taking steps to increase their own refining capacity to deal with this problem."
Same for Tar Sands they have been at it since the 70's to get to 1.5 to 2 MBPD
It can't be ramped up quickly at all , and now lots of environmental backlash against the projects.
Brazil?
http://www.planetark.org/daily...newsid/50267/story.htm
BRAZIL: September 18, 2008
RIO DE JANEIRO - Technological advances will help oil giant Petrobras and its foreign partners tap huge subsalt reserves off Brazil's coast, but a shortage of skilled workers and tight equipment supplies pose challenges.
High oil prices, previous under-investment in training by the energy industry, and increasingly hard-to-access reserves have driven up the cost of the complex equipment and skilled engineers needed for major oil projects.
"Perhaps our single greatest hurdle lies in the hiring and training of people," said Mark Riding, the deep-water theme director for oil field services supplier Schlumberger Ltd, during a seminar at the biennial Rio Oil and Gas conference this week.
"Years of under-investment in talent have led to a limited and aging pool of skilled workers."
Again lots of oil, big challenges to produce it in any meaningfull numbers