However, most of undeveloped new blocks are low-grade reservoirs with many development difficulties such as super heavy oil, low permeability, thin bed and deep pay.
而尚未开发的新区大多属于超稠油、低渗、薄层或深层等开采难度较大的低品位油藏。
2
Bohai 36 1 crude is classified to low sulfur naphthenic base crude oil, which is a good feedstock for producing high grade road asphalt.