Method is alternative to soil gas for detecting seepage anomalies

Through the years, many geochemical methods have been developed for the detection of near surface hydrocarbon seepage anomalies. The methods most often used require the capture and analysis of gas phase hydrocarbons. This has proven to be difficult and expensive, requiring the use of special drilling rigs and sample containers.Other methods, usually termed as indirect, have the ability to detect hydrocarbons but are less frequently used due to the incorrect assumption they do not directly detect seepage anomalies.Methods are now available that directly detect hydrocarbons but do not require gas capture or special sampling tools.GC detectionNear surface geochemical exploration is the appli...

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