Abstract:

Hydrogen flow rate, scan speed and chromatobar activity have influence on repeatabilityof sample analysis results. When hydrogen flow rate (L) is 180ml per min, scan speed is 30s each time, then control humidity and temperature to certain condition, and keep the activityof the chromatobar, choose different correction factor values according to different crudeoils. The analysis results show that relative deviation is less than 10%. This has proved thefeasibility of TLC-FID chromatobar analysis. The authors applide this technique in describing the geochemistry of Tazhong-4 structural oil reservoir, discovered a bitumne-rich layer inthe reservoir, and determined the present oil-water boundary of the reservoir.