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.