Khai thác dầu ngoài khơi (offfshore drilling) rẻ hơn so với dầu đá phiến Mỹ (shale)

Theo nghiên cứ dưới đây thì khai thác dầu ngoài khơi (offshore drilling) vẫn rẻ hơn so với dầu đá phiến khai thác trên bờ (shale gas) ở Mỹ/Canada. Như vậy với giá dầu trên 60$ thì offshore oil & gas vẫn có nhiều tiềm năng.

[h=1]Offshore still cheaper than shale while oil sands struggle: Rystad[/h]STAVANGER, Norway -- Offshore resources remain attractive for new production with a breakeven price within the range of $60-65/bbl, concludes Rystad Energy’s in-depth October study of more than 20,000 non-producing liquid fields.
Offshore holds about one third of the global non-developed resources, where most of the resources are located in the Middle East, Brazil and Norway. These regions have benefitted from large offshore commercial discoveries, such as Lula and Libra (Brazil), Hamur (Saudi Arabia) and Johan Sverdrup (Norway).
“Brazil is an example of this; here we have observed the development wells for new fields performing better than expected and ultimately making the fields more commercial,” Espen Erlingsen, V.P. of analysis at Rystad Energy, said. “In addition, several of these countries’ currencies have weakened against the dollar, resulting in lower costs measured in dollars.”


Shale
North America shale remains more expensive than offshore, with a breakeven price of just below $70/bbl. The breakeven price has fallen considerably over recent years. Rystad Energy estimates the breakeven price for wells drilled this year may be 30% lower than the wells drilled in 2014. This is because only the best acreage is drilled combined with efficiency gains and lower unit prices. However, due to high price differentials and the fact that many of the resources are outside the core areas for many of the shale plays, the average breakeven still remains high.
The non-producing oil sands projects have a resource potential of 40 Bbbl of oil, but require an average Brent oil price of around $80/bbl to be commercial. The high breakeven oil price is a combination of high development and operational costs in addition to the high price differential between realized prices for oil sand as compared to Brent; currently, Western Canadian Select is traded more than $15/bbl lower than Brent.
“The fact that only onshore Middle East projects have an average breakeven price of below $50/bbl illustrates that the current oil level is not sustainable in the long run. To develop projects needed to balance supply and demand in the long-term, the oil price has to be close $100/bbl,” Erlingsen added.

Source: http://www.worldoil.com/news/2015/1...er-than-shale-while-oil-sands-struggle-rystad