MIGRATION AND ACCUMULATION OF CRUDE OILS FROMTAZHONG FILED, TARIM BASIN
Received date: 2003-05-19
Revised date: 2003-08-22
Online published: 2003-12-20
The absolute amounts and relative distributions of neutral nitrogen compounds of crude oils in Tazhong field showed clearer migration fractionation vertically and laterally. From deeper reservoir to slower reservoir in C-Ⅲ oil leg in Tazhong structure, the ratios of 1，8-dimethylcarbazole to 1，6-dimethylcarbazole，1，8dimethylcarbazole to 2，7dimethylcarbazole and 1，8dimethylcarbazole to 2，5-dimethylcarbazole increased from 2.06，2.54，6.83 to 2.87，3.92，14.71. In contract, migration fractionation of neutral nitrogen compounds of crude oils from C-Ⅰ oil leg and C-Ⅲ oil leg in Tazhong field weren't obvious based on migration parameters of neutral nitrogen compounds. Crude oils of C-Ⅰ oil leg and C-Ⅲ oil leg in Tazhong structure migrated laterally from well TZ411 to well TZ421 and well TZ402.
WU Zhang-wu, ZHANG Min, ZHANG Jun, FENG Min . MIGRATION AND ACCUMULATION OF CRUDE OILS FROMTAZHONG FILED, TARIM BASIN[J]. Natural Gas Geoscience, 2003 , 14(6) : 480 -483 . DOI: 10.11764/j.issn.1672-1926.2003.06.480
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