Application Of Chromatographic Fingerprint Technology In Reservoir Fluid Connectivity In The Southwestern Guizhou Oilfield

Instructions according to the principle of reservoir geochemical basis, fine oil composition change other geochemical indicators, such as biomarkers and carbon isotopes of crude oil, crude oil index of nitrogen compounds, etc. Can also be used for reservoir connectivity, background interference, especially in the chromatographic fingerprint of crude oil are biodegradable serious circumstances, the application of these new indicators should be faster and more accurate than the chromatographic fingerprints of instructions.This topic to Wei southwestern weizhou 12-1 oilfield, B4 wellblock B19Sc well and B25 well, block in weizhou 11-1 oilfield A8S1 Wells and the surrounding well A10 A2, A3, A6, crude oil physical properties of crude oil into the experimental analysis, the total hydrocarbon chromatographic fingerprint analysis of crude oil, crude oil, crude oil composition analysis of saturated hydrocarbon biomarkers, nitrogen compounds of crude oil analysis such as earth chemistry experiment, and is mainly used in analysis of crude oil chromatographic fingerprint technology using biomarkers nitrogen compounds, carbon isotopes of crude oil, crude oil index analysis of weizhou 12-1 oilfield, B4 wellblock B19Sc well and B25 well, block in weizhou 11-1 oilfield A8S1 Wells and the surrounding well A10 A2, A3, A6, differences between the microscopic properties of crude oil, used to determine B19Sc weizhou 12-1 oil field Wells and B25 well, weizhou 11-1 oilfield A8S1 well and reservoir fluid connected well A10, study suggests:B25 weizhou 12-1 oil field and B19 well crude oil total hydrocarbon chromatography fingerprint characteristics have obvious difference, the fingerprint peaks of coincidence rate is 50%, show that these two Wells with poor connectivity; Weizhou 11-1 oilfield, the four Wells well crude oil total hydrocarbon chromatography fingerprint characteristic differences vary, fingerprint peak part of the A2 well with A8S1 well, coincidence rate was 63%, the two well connectivity medium; A3 well with A8S1 well fingerprint peaks are in good agreement, coincidence rate was 88%, the two well connectivity is better; Fingerprint peaks of the A6 well with A8S1 well differences, coincidence rate was 50%, the two well connectivity is poor.