[Notes] Petroleum Geology Part 4

 Basic Component

- Mixture of hydrocarbons

- Hydrocarbons series

        * paraffine or methane series

        *naphthene series

Natural Gas

- Hydrocarbons not condensable at 20 degrees C

3 Distinct Origins of Natural Gas

- By-product of the generation of oil

- modification of coal

- formed by low-temperature alteration of organic matter (marsh gas)

API Gravities

>30            light

30-22        medium

<22            heavy

Again, sorry for this. Really weird fragments of notes.