• Provides both qualitative and quantitative measurements

• Measures light hydrocarbon gases within the  C1 – C5 range

• Samples are from shallow auger holes-onshore

This proprietary method analyses soils and sediments for light hydrocarbon gases (C1 through C5+). The method is believed to represent a short-term record of hydrocarbon microseepage, days to weeks. The method uses 0.1 g of sample heated in a 250º C in quartz.  The extracted gases are trapped by an absorber, and then desorbed into a cryogenic concentrator on a capillary GC.  Results are reported in ppbw (parts per billion by weight of dry sample).E&P GeoFS uses this analytical method primarily (1) when surface conditions do not favor the preservation of sorbed soil gas, such as when soil pH is less than 5-5.5, and (2) for soils rich in plant organic matter such as may be found in swamps, muskeg or associated with peat deposits. Like with “AE” the strength of this technique is its qualitative measurements which help predicting the nature of the migrating hydrocarbons “the source of the microseepage gases” (i.e., oil or gas, condensate,)