Скачать с ютуб Cenovus Energy: Understanding Steam-Assisted Gravity Drainage в хорошем качестве

Cenovus Energy: Understanding Steam-Assisted Gravity Drainage

You may have seen images of the oil sands mining operations on TV or in magazines. It's unlikely, though, that you've seen oil sands drilling operations. What's the difference between mining and drilling in the oil sands? Mining is used when the oil is close to the surface. About 20% of the oil in the oil sands is close enough to the surface that it has to be mined. Drilling is used when the oil is deeper under the ground. About 80% of the oil in the oil sands is so deep underground that it has to be drilled. Drilling projects don't require tailings ponds and disturb very little land. Cenovus has no mining projects. In fact, the oil on all of Cenovus's approximately 1.3 million net acres of land leases in the oil sands (includes 0.3 million net acres that we have exclusive rights to lease) is deep underground, which means it requires specialized technology, like steam-assisted gravity drainage (SAGD), to drill and pump the oil to the surface. http://www.cenovus.com/news/a-differe...