Usually people for oil imagination is like this: oil buried underground great depth, the liquid with
"oil river" or "oil sea" form of existence, the oil well drill to the ground and people will come up
the draw. Completely wrong. In the oil of the first stop manager in the exhibition hall, a group
of excellent exhibits can help you know how oil exist: here are from China 10 oil field petroleum
samples and core samples, including daqing oil field, xinjiang oil field, the east China sea oil
field, jiangsu oilfield, etc. Different oilfield production of oil "character" is different, some dark
brown is thick, some are golden brown is lightsome. Core samples tell you: in fact, oil is mostly
to penetrate a trickle in rock porosity and empty, or a full.