31 1 2012 3 GLOBAL GEOLOGY Vol. 31 No. 1 Mar. 2012 1004 5589 2012 01 0139 09 1 1 2 1 1 1 1. 130061 2. 130061 - P168. 130. 2 A doi 10. 3969 /j. issn. 1004-5589. 2012. 01. 017 Reserch on hydrocarbon accumulation condition and distributive regulation of Siberian platform Russia TAO Gao-qiang 1 DONG Qing-shui 1 2 NIE Hui 1 ZHANG Kai-wen 1 LOU Ren-xing 1 1. College of Earth Sciences Jilin University Changchun 130061 China 2. Oil-shale Laboratory Center Jilin University Changchun 130061 China Abstract Siberian platform of Russia has tremendous potential prediction in hydrocarbon but poor in exploration research. The platform is one of the important target areas of overseas hydrocarbon exploration and for the CNPC. On the basis of the types of tectonic units the comprehensive analysis results of hydrocarbon accumulation condition trap type and hydrocarbon distribution characteristics show that the key factors that controlling the hydrocarbon distribution of Siberian platform are tectonic action and the characteristics of strata and source rocks the model of hydrocarbon accumulation is characterized by being generated and reserved indigenously. Hydrocarbon reservoirs mainly distributed in uplifted areas of cratonic margin without shield and depressions of continental margin the former hydrocarbon enriched layer lay in Permian- Jurassic and the latter in Vendian-Cambrian. The main type of hydrocarbon reservoir is stratigraphical-structural composite. Key words Siberian platform hydrocarbon accumulation condition distribution rule accumulation model 0 78 ~ 120 E 55 ~ 80 N 2011-10-27 2012-02-13 GT-YQ-QQ-2008-2-07 1963-. E-mail dqs9518@ 163. com
140 31 6. 3 10 6 km 2 1 1. 1 1 1 19 20 1 20 20 30 2 50 60 t 2 4 Fig. 1 1 2 Tectonic divisions of Siberian platform
1 141 6 2 000 ~ 4 000 m 3 4 1 4 000 m - 6 500 m 5 1. 2 16 ~ 6. 5 a 6. 5 ~ 5. 7 a 6 7 6 000 ~ 8 000 m 7 8 9-3 7 600 m 10 000 ~ 14 000 m 7 000 m 2 1 400 m 50 m 2. 1 1 300 ~ 2 200 m 290 ~ 1 860 m 768 10 ~ 1 781 m 2. 1. 1 50 ~ 845 m 100 ~ 2 000 m 2 1 500 ~ 3 000 m 0. 5% ~ 3% Ro > 0. 85%
142 31-150 6 000 m ~ 2 000 m 0. 2% ~ 1% ~ 10% Ro > 0. 5% 1% Ro 0. 57% ~ 1. 18% 2% 0. 1% ~ 1% Ro 0. 1% ~ 1% Ro 0. 45% ~ 1. 15% 0. 76% ~ 1. 18% 195 ~ 330 m 0. 1% ~ 0. 5% Ro 0. 45% ~ 0. 85% Fig. 2 2 Distribution of hydrocarbon source rocks in Lifei System of Siberian platform 2. 1. 2 < 0. 2% Ro 0. 57% ~ 0. 76% - 2. 1. 3 125 ~ 750 m 0. 05% ~ 0. 5% Ro 0. 5% ~ 0. 86%
1 143 2. 2. 2 3 749 m 1% ~ 2% Ro 0. 54% ~ 0. 76% 930 m 0. 12% ~ 0. 6% 168 ~ 2 250 m 0. 5% ~ 1. 08% 370 ~ 1 397 m 0. 52% ~ 1. 07% 2% ~ 20% 1 ~ 100 10-3 μm 2 2. 2 5% ~ 20% 1 ~ 100 10-3 μm 2 2. 2. 1 2. 2. 3 - - 11. 2% ~ 5. 5% 25% < 100 10-3 μm 2 1. 5% ~ 18% 2% ~ 7% 10% ~ 12% 20% 20 ~ 30 10-3 μm 2-1 ~ 88 10-3 μm 2 15 ~ 20 m 2. 5% ~ 23. 6% 1 ~ 72. 4 10-3 μm 2 153 ~ 240 m 2. 7% ~ - 28. 2% 350 10-3 μm 2 6. 8% ~ 23. 9% 5. 5 ~ 15 2. 3 10-3 μm 2 6. 5% ~ 16% 63 2% ~ 15% 1 1 ~ 10 10-3 μm 2-52 1% ~ 15% 1 ~ 10 10-3 μm 2 17. 5% 11 3% ~ 14% - 22 ~ 56 m 2. 3% ~ 23. 7% 82. 5%
144 31 Table 1 1 Trap types of founded oil and gas fields in Siberian platform - - - - - 3 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 19 2 0 1 0 0 30 3 0 0 0 2 3 0 2 1 0 0 0 6 3 0 0 0 0 0 12 0 0 0 0 0 24 2 0 0 0 0 0 10 0 0 0 0 0 52 4 1 1 2 3 63 30 21 47. 6% - 24 38% - - 3 2. 4 3 1 000 ~ 2 000 m 3 3. 1 1 63 30 24
1 145 1-2 14 km 13 3. 2 12 1 63 52-4 3 - - 2-3. 3-1 91% 15 1 16 4-14 2 63 1 93% - 3
146 31 Fig. 3 3 East-west regional geological cross-section of Siberian platform Fig. 4 4 Hydrocarbon reservoir formation model of Siberian platform 4 1 2 3
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