Takaaki Sakaguchi - Hideki Matsubayashi and Kunihiro Tsuchida (Japan Oil, Gas and Metals National Corporation)
Susumu Okubo - Hideki Matsubayashi and Kunihiro Tsuchida (Japan Oil, Gas and Metals National Corporation)
Keiko Hatatno - Hideki Matsubayashi and Kunihiro Tsuchida (Japan Oil, Gas and Metals National Corporation)

Since hydrocarbon-bearing fluid inclusions in reservoir rocks retain information on hydrocarbon migration and charge history in a basin, characterizing fluid inclusions is an important key to understand petroleum systems. In terms of hydrocarbon composition, it was very difficult to analyze trapped hydrocarbon compounds in individual inclusions because extraction method of trapped hydrocarbon was not established. Japan Oil, Gas and Metals National Corporation developed Laser Micropyrolysis Gas Chromatograph/Mass Spectrometer (LMP-GC/MS) and applied the device to extract and analyze hydrocarbons such as biomarkers preserved in each fluid inclusion. Applying LMP-GC/MS coupled with conventional methods in a certain oil field, we recognized that several charge events existed in the field and different types of hydrocarbon were charged to the reservoir at each event.

hydrocarbon fluid inclusion, laser extraction, biomarker, hydrocarbon charge, GC/MS