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Pré-sal do Brasil contém 176 bilhões de barris de petróleo e gás <posted by macaense>


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#1 macaense

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Posted 25 February 2016 - 08:56 PM

Pré-sal do Brasil contém 176 bilhões de barris de petróleo e gás, diz estudo Estudo foi feito no Instituto Nacional de Óleo e Gás da UERJ.
Polígono pode ter óleo não descoberto suficiente para 5 anos no mundo.

Da Reuters

 
 
 

O polígono do pré-sal do Brasil, uma área marítima que já resultou em algumas das maiores descobertas recentes de petróleo, pode conter ainda óleo e gás não descobertos suficientes para suprir as atuais necessidades do mundo por mais de cinco anos, disseram pesquisadores.

O polígono, que cobre a maior parte das bacias marítimas sedimentares de Campos e Santos, contém ao menos 176 bilhões de barris de recursos não descobertos e recuperáveis de petróleo e gás natural (barris de óleo equivalente), de acordo com um estudo publicado semana passada por Cleveland Jones e Hernane Chaves, do Instituto Nacional de Óleo e Gás da Universidade Estadual do Rio de Janeiro (UERJ).

Isso é quatro vezes mais do que os 30 bilhões a 40 bilhões de barris que já foram descobertos na área.

"Essa é uma estimativa conservadora, com uma alta probabilidade de se tornar verdade, 90%, na verdade. Em tese, o total que ainda não foi descoberto de recursos recuperáveis no polígono do pré-sal pode ser tão grande quanto 273 bilhões de barris, mas o número mais alto só tem uma certeza estatística de dez por cento," disse Jones.

A estimativa do INOG é a única grande avaliação do potencial do polígono do pré-sal.

A estimativa de 2015 é 54% maior que a de 2010, feita pelo INOG, que variava de 114 a 288 barris de óleo equivalente.

A pesquisa coloca a probabilidade de uma estimativa mais baixa, de 90%, e a previsão mais alta, de 10%. Ao contrário de outros países democráticos produtores de petróleo como os Estados Unidos, Canadá, Grã-Bretanha e Noruega, a agência reguladora de petróleo do governo (ANP) não publica estimativas de potenciais recursos marítimos do Brasil.

"O Brasil tem sido descuidado por não tornar esses números públicos", disse John Forman, um ex-diretor da ANP. Ele adicionou que a estimativa do INOG é a única estimativa pública confiável que está disponível e que usa métodos aceitáveis pela indústria.

 

 


Edited by macaense, 25 February 2016 - 09:40 PM.

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#2 macaense

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Posted 25 February 2016 - 09:41 PM

Markets | Mon Aug 10, 2015 4:14pm EDT
Related: Energy
Brazil offshore subsalt holds 176 bln bbls of oil, gas -study
 
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Aug 10 Brazil's Subsalt Polygon, an offshore area that has already yielded some of the world's largest recent oil finds, may hold enough undiscovered petroleum and gas to supply the world's current oil needs for more than five years, researchers said.

The Polygon, which covers most of Brazil's Santos and Campos offshore sedimentary basins, contains at least 176 billion barrels of undiscovered, recoverable resources of oil and natural gas (barrels of oil equivalent), according to study released last week by Cleveland Jones and Hernane Chaves of the National Institute of Oil and Gas (INOG) at Rio de Janeiro-State University.

That is more than four times the 30 billion to 40 billion boe already discovered in the area.

"This is a conservative estimate with a high probability of coming true, 90 percent in fact," Jones said. "In theory, total undiscovered, recoverable resources in the Subsalt Polygon could be as high as 273 billion barrels, but the higher number only has a statistical certainty level of 10 percent."

Subsalt refers to oil trapped far beneath the Earth's surface or seabed by a layer of mineral salts. The Polygon is a Brazilian legal district that covers an offshore area near Rio de Janeiro and Sao Paulo where Brazil already gets about 85 percent of its oil and gas.

The INOG's estimate is the only major public assessment of the Subsalt Polygon's potential. The 2015 estimate is 54 percent bigger than the INOG's 2010 estimate of 114 to 288 billion boe. That survey put the probability of the lower estimate at 90 percent and the higher outlook at 10 percent.

Unlike other democratic, oil-producing countries such as the United States, Canada, Britain and Norway, Brazil's government and petroleum regulator ANP does not publish estimates of potential Brazilian offshore resources.

"Brazil has been remiss in not making such numbers public," said John Forman, a former director of Brazil's oil regulator ANP. He added that the INOC estimate is the only reliable public estimate available and that it uses industry-accepted methods.

Taken individually, the average size of undiscovered fields within the Subsalt Polygon is 246 million boe, according to the 2015 study's most conservative estimate.

Recoverable resources are exploitable using current technology, but may not be viable depending on the price of oil, the cost of equipment and the financial health of the companies that own the rights to produce them. Resources can only become reserves if they economically exploitable. (Reporting by Jeb Blount; Editing by Marguerita Choy)


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#3 macaense

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Posted 25 February 2016 - 10:12 PM

Aproximadamente 120.000 resultados (0,63 segundos) 
Dica: Pesquisar apenas resultados em português (Brasil). Especifique seu idioma de pesquisa em Preferências
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Brazil offshore subsalt holds 176 bln bbls of oil, gas -study ...
www.reuters.com/.../brazil-oil-estimate-idUSL1N10...
10 de ago de 2015 - "In theory, total undiscovered, recoverable resources in the Subsalt Polygon could be as high as 273 billion barrels, but the higher number only ...
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Brazil's pre-salt contains 176 billion barrels of oil and gas ...
www.costdrivers.com › Home › Noticias › 2015 › Agosto
11 de ago de 2015 - The polygon of the pre-salt layer of Brazil, a maritime area that has already resulted in some of the largest recent oil discoveries, may contain oil ...
Brazil's pre-salt contains 176 billion barrels of oil and gas ...
www.datamark.com.br/.../brazil-s-pre-salt-contains-1...
11 de ago de 2015 - The polygon of the pre-salt layer of Brazil, a maritime area that has already resulted in some of the largest recent oil discoveries, may contain oil ...
Researchers say pre-salt may hold 176 billion oil barrels ...
rio-negocios.com/researchers-say-pre-salt-may-hold-...
14 de ago de 2015 - A new study has pointed to the existence of at least 176 billion barrels of undiscovered and recoverable oil and gas resources in the pre-salt ...
Challenging Legitimacy at the Precipice of Energy Calamity
Debra J. Davidson, ‎Mike Gismondi - 2011 - ‎Science
as 176 billion barrels). One reporter referred to “the vast ocean of tar-like goo in the northern part of the province [and] By most estimates, there is more oil in the ...
Study: Brazil Offshore Subsalt Holds 176 Billion Barrels Of ...
eplglobalus.com/study-brazil-offshore-subsalt-holds-...

10 de ago de 2015 - Brazil's Subsalt Polygon may hold enough undiscovered petroleum and gas to supply the world's current oil needs for more than 5 years, .


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#4 macaense

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Posted 26 February 2016 - 05:40 PM

Bill to open Brazil’s offshore oil to foreign firms faces fierce opposition
Feb 26 2016, 10:39 ET | By: Carl Surran, SA News Editor mail_icon.png

Legislation to open offshore oil fields in Brazil to foreign firms took a major step forward earlier this week, but still faces fierce resistance from opponents who consider the measure an affront to the country’s control of a prized natural resource, WSJ reports.

The proposed bill would change part of the law that requires state-run Petrobras (PBR -0.8%) to be the lead operator and hold at least a 30% share of any drilling projects; instead, PBR would be offered the right of refusal to control and drill each field before it was put up for auction, which proponents say could help attract fresh capital from foreign oil companies, many of whom balked at the old rules, and bring in more oil revenue for Brazil’s government.

Yet the company is a symbol of national pride for many Brazilians, and most of Pres. Rousseff's Workers’ Party strongly opposes the bill, portraying it as theft or sabotage of a national resource that belongs solely to Brazilians.

The bill could go to the lower house as soon as next week, although it could be months before a final vote is taken; it then would go to Rousseff's desk.


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