Changes

* ''Total combustible hydrocarbons'' from gas trap, mud, cuttings blender tests, and nonformational borehole gas events such as trip gas, carbide lag checks, and connection gas are recorded.

* ''Total combustible hydrocarbons'' from gas trap, mud, cuttings blender tests, and nonformational borehole gas events such as trip gas, carbide lag checks, and connection gas are recorded.

* ''Hydrocarbon chromatograph'' with gaseous alkanes (methane, ethane, propane, butanes, and pentanes) are plotted as individual tracks. Chromatograph calibration checks are also included, providing they do not obscure well data.

* ''Hydrocarbon chromatograph'' with gaseous alkanes (methane, ethane, propane, butanes, and pentanes) are plotted as individual tracks. Chromatograph calibration checks are also included, providing they do not obscure well data.

* ''Oil evaluation'' includes subjective and qualitative evaluation of oil staining and solvent-cut oil. (Many mudloggers include these data in the lithology track.) This evaluation can also include qualitative analysis of oil fluorimetry, refractometry, and geochemistry.

* ''Oil evaluation'' includes subjective and qualitative evaluation of oil staining and solvent-cut oil. (Many mudloggers include these data in the lithology track.) This evaluation can also include qualitative analysis of oil fluorimetry, refractometry, and [[geochemistry]].

===Track 6: geological and lithological evaluation===

===Track 6: geological and lithological evaluation===

[[Category:Wellsite methods]]

[[Category:Wellsite methods]]

[[Category:Petrophysics and well logs]]

[[Category:Petrophysics and well logs]]