Changes

==How to apply HI==

==How to apply HI==

[[Petroleum generation|Hydrocarbon generation]] zones can be indicated in the HI data for a uniform source section when HI decreases with depth. Inconsistencies due to changes in organic facies or the chemistry of the [[source rock]] can produce shifts in the HI data which are not indicative of [[maturation]] trends. Therefore, be sure the source is of uniform character when applying this concept.

[[Petroleum generation|Hydrocarbon generation]] zones can be indicated in the HI data for a uniform source section when HI decreases with depth. Inconsistencies due to changes in [[organic facies]] or the chemistry of the [[source rock]] can produce shifts in the HI data which are not indicative of [[maturation]] trends. Therefore, be sure the source is of uniform character when applying this concept.

[[:file:evaluating-source-rocks_fig6-14.png|Figure 1]] shows a decreasing HI trend for a source rock beginning to generate hydrocarbons at a depth of approximately [[depth::2200 m]].

[[:file:evaluating-source-rocks_fig6-14.png|Figure 1]] shows a decreasing HI trend for a source rock beginning to generate hydrocarbons at a depth of approximately [[depth::2200 m]].

[[Category:Critical elements of the petroleum system]]  

[[Category:Critical elements of the petroleum system]]  

[[Category:Evaluating source rocks]]

[[Category:Evaluating source rocks]]