Pétrographie et inclusions fluides

Contact : ►Vanessa DYJA - vanessa.dyja@univ-lorraine.fr  Tél. +33 3 83 68 47 46 Supervisor : Jacques PIRONON

PETROGRAPHY

• Transmission – reflexion – UV-Epifluorescence
• SEM
• Hot and cold cathodoluminescences
• Application to diagenesis (carbonates, sandstones , evaporites ,…)

FLUID INCLUSIONS ANALYSIS (aqueous and petroleum inclusions)

• Description of different fluid inclusion populations with respect to their locations (overgrowth, fractures), content (water, gas or petroleum) and relations ( contemporaneous or not contemporaneous aqueous and petroleum inclusions).

Microthermometry (Th, Tm)

• Salinity and minimal temperature of entrapment

Raman microspectrometry (aqueous inclusions)

• Salinity, dissolved gases (CH₄, CO₂, H₂S,…)
• CH₄ concentration

FT-IR microspectrometry (petroleum inclusions)

• CH₄, CO₂ and alkane molar concentrations

Confocal laser scanning microscopy

• Volume, Gas/Liquid ratio

UV fluorescence spectrometry

P-V-T-X-t MODELING

• Thermodynamic modeling of aqueous and petroleum inclusions

INTEGRATION OF FLUID INCLUSIONS STUDY IN 1D BASIN MODELING

• History of hydrocarbon reservoir charge or discharge
• Estimate of fluid overpressure episodes
• Timing of fluid events

The analyses are performed at GeoRessources laboratory (Nancy, France)