Section 1 petroleum 1石油的化学组成 Chemical Composition of Petroleum 2石油的分类( Classification of petroleum) 3海陆相石油的基本区别( Basic difference of marine and Continental Petroleum) 4石油的物理性质( Physical Properties of Petroleum)Section 1 Petroleum • 1 石油的化学组成(Chemical Composition of Petroleum) • 2 石油的分类(Classification of Petroleum) • 3 海陆相石油的基本区别(Basic Difference of Marine and Continental Petroleum) • 4 石油的物理性质(Physical Properties of Petroleum)