Tracking hydrocarbon seepage in Argentina’s Neuquén basin ///

Surface indications of hydrocarbon seepage have been influential in the discovery of oil and gas fields since the beginning of petroleum exploration. To this end, detailed geochemical and microbial surveys are an important means of detecting overlooked oil and gas reservoirs. The technique involves analyzing shallow, surface soil samples for hydrocarbon oxidizing microbes. As depleted reservoirs quickly lose their associated microbial anomalies, such surveys can subsequently detect non-depleted reservoirs.

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