GEOCHEMICAL ANALYSIS – SOURCE ROCK
Purposes of geochemical research of source rock:
- Content of organic matter
- Genetic type of kerogen
- Maturity of organic matter
- Hydrocarbon potential
- Simulation of hydrocarbon generation and expulsion processes (hydrous pyrolysis)
- Determination of kinetic parameters of kerogen by hydrous pyrolysis for modeling of petroleum processes (1D, 2D, 3D)
- Influence of secondary processes:
- biodegradation
- water washing
- evaporation fractionation
- thermal cracking
- α radiation
- Correlation oil – source rock
Source rock – geochemical study:
- Rock sampling (core, outcrop, cuttings) and sample preparation
- Rock-Eval Analysis (ver. II and 6)
- Bitumen extraction (Soxtec i Soxhlet)
- Bitumen fractions composition:
- saturated hydrocarbons
- aromatic hyrdocarbons
- resins
- asphaltenes
- Biomarkers:
- GC bitumens
- GC–MS (saturated hydrocarbons)
- GC–MS (aromatic hydrocarbons)
- GC–MS–MS
- Isolation of kerogen
- Elemental composition of the kerogen (C, H, O, N, S)
- Iron composition in the isolated kerogen and Sorg calculation
- Elementary composition of the asphaltens (C, H, O, N, S)
- Sulfur composition: Stotal, Spyr, Ssulfate
- Hydrous pyrolysis
- Determination of kinetic parameters of kerogen (Ea and Ao) based on hydrous pyrolysis
- Indirect method – determination of kinetic parameters of kerogen (Ea and Ao) based on Sorg
- Indirect method – determination of kinetic parameters of kerogen (Ea and Ao) based on single hydrous pyrolysis experiment
- Stable isotopes in bitumens, saturated hydrocarbons, aromatic hydrocarbons, resins, asphaltenes, kerogen
- Carbon and oxygen stable isotopes in carbonates
- Sulfur stable isotopes: bitumens-resins-kerogen
- Content U, Th, Co, Pb, Zn, Cu, V, W, Mo, etc. in bitumens
- Content U, Th, Co, Pb, Zn, Cu, V, W, Mo, etc. in bulk rock
- Vitrinite reflectance
- Macerals composition