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* Providing input data for volumetric calculations
* Providing input data for volumetric calculations
* Providing data for development geology
* Providing data for development geology
==Parameters==
These parameters are of three types:
* Elemental—the bulk composition of a sample
* [[Wikipedia:Isotope geochemistry|Isotopic]]—ratios of one stable isotope to another in a sample
* Molecular—the presence and relative or absolute abundance of certain specific molecules in a sample
Molecular parameters are the most important because they provide the most specific data, including data that can sometimes be used for estimating ages of oils or source rocks.
===Selection of correlation parameters===
As wide a range of data types as possible should be used in correlations. Particular emphasis should be placed on molecular and isotopic parameters because they carry much more information than do elemental parameters.
==Determining data reliability==
==Determining data reliability==
* [[Limitations of oil correlations]]
* [[Limitations of oil correlations]]
* [[Practical suggestions for oil correlation]]
* [[Practical suggestions for oil correlation]]
* [[Elemental parameter data for oil–oil and oil–source rock correlations]]
* [[Isotopic parameter data for oil–oil and oil–source rock correlations]]
* [[Molecular parameter data for oil–oil and oil–source rock correlations]]
==References==
==References==