Geochemical Imaging/Seep detection

Enovation is investigating the potential of Geochemical Imaging which involves detection of minute levels of hydrocarbon compounds emanating from a reservoir that migrate to the surface. Typically samples are taken at the surface via modules inserted in the soil. Offshore samples can be taken via ocean bottom cores.

Differentiation of petroleum phases including gas, condensate and oil is possible with advanced analytical techniques.

The method is suitable for either Frontier or Prospect evaluation and looking for by-passed pay.

The technique can be combined with Seismic or EM techniques to reduce risk. Normally onshore acquisition is more cost effective. Offshore another option is seep detection to identify HC presence indicative of deeper reserves and to reduce source risk. This is typically based on satellite or airborne imagery.