Extraction & Group Type Separation

Understand the richness of your source rocks

Extractable organic matter (EOM) from source and reservoir rock samples provides an indication of richness. The laboratory quantifies the asphaltenes plus saturates, aromatics and polar fractions using medium pressure liquid chromatography (MPLC). We are also able to obtain the Group type distributions (SARA) using TLC by Iatroscan.

Group type separation

De-asphaltening - Prior to medium pressure liquid chromatography (MPLC) asphaltenes are precipitated from rock extracts and oils.

MPLC – Measurement of saturated, aromatic and polar fractions, which can be run for isotopes, gas chromatography (GC) and gas chromatography - Mass spectrometry (GC-MS).

Solvent extraction

Crushed samples are run through the Soxtec Tecator instrument to determine the amount of extractable organic matter.

More details on how this is carried out can be found in the Glossary.

To discuss APT's geochemistry services please contact: