Changes

'''Pyrolysis gas chromatography''' (Py-GC) is anhydrous thermal decomposition of a material that leads to the conversion of kerogen to hydrocarbon compounds. Py-GC can be conducted on whole rock or isolated kerogen samples to obtain a visual signature or “fingerprint” of the organic material present.

'''Pyrolysis gas chromatography''' (Py-GC) is anhydrous thermal decomposition of a material that leads to the conversion of kerogen to hydrocarbon compounds. Py-GC can be conducted on whole rock or isolated kerogen samples to obtain a visual signature or “fingerprint” of the organic material present.

When kerogen is pyrolyzed and the products are analyzed by [[gas chromatography]], those products can be similar to those present in oils. One can compare the pyrolysis products either with the products of natural generation (oil) or with the products of laboratory pyrolysis of the asphaltenes from oils. Both comparisons are useful for oil–[[source rock]] correlations. Oil–oil correlations can also be carried out by comparing products of asphaltene pyrolysis from the various oils.

When kerogen is pyrolyzed and the products are analyzed by [[gas chromatography]], those products can be similar to those present in oils. One can compare the pyrolysis products either with the products of natural [[Petroleum generation|generation]] (oil) or with the products of laboratory pyrolysis of the asphaltenes from oils. Both comparisons are useful for oil–[[source rock]] correlations. Oil–oil correlations can also be carried out by comparing products of asphaltene pyrolysis from the various oils.

==Dry vs hydrous pyrolysis==

==Dry vs hydrous pyrolysis==