Application Note

Model 8900 Well Logging Gas Analyzer

Source: Baseline Inc.

The Model 8900 Well Logging Gas Analyzer combines the selectivity of gas chromatography with the sensitivity, broad dynamic range and hydrocarbon selectivity of a flame ionization detector (FID) providing fast analysis of C1-C5 hydrocarbons required in Mud Logging for Oil & Gas exploration.

The 8900 WL Analyzer uses a dual column configuration with timed backflush to vent which is used to strip of moisture and C6 hydrocarbons. A pre-cut column is used in series with the analytical column. At sample injection a fixed sample volume is carried to the pre-cut column. Backflush of the pre-cut column is timed from sample injection so that only C1-C5 hydrocarbons are eluted from the pre-cut column to the analytical column. C6 hydrocarbons on the pre-cut column are then vented. C1-C5 hydrocarbons are separated on the analytical column and elute to the flame ionization detector (FID) for analysis.

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