Vol 27 No4 ABSTRACT 15 study on formation of gas pool is the quantitative modelling of gas and many large scale structures formed, the hydrocarbon generating generation, migration, dispersion, and accumulation. Whether a of the source rocks co forming a number of pools.The hydrocarbon pool can form or not depends on its dynam basic magmatism during late Permian and Triassic had a significant mulation influence on the generation and expulsion of oil olume is greater than its dispersion amount, gas pool will form. heading: Siberian platform, Proterozoic era, Formation, Oil and On the contrary, it will not. Songliao basin is the largest gas accumulation zone, Oil and gas origin, Geologic history continental-petroliferous basin of China. Based on a large amount of Reservoir formation, Geologic analogy method, Talimu basin fault depression of Songliao basin, studies of regional structure The analytical model of oil migration in water aturated media and volution, fault distribution, characteristics of depositional result analysis. KANG Yong-shang; et al.( University of stratigraphy and trap characters of source rock, reservoir roc Petroleum, Beijing 102249, P. R China). Shiyou Kantan Yu ock and gas migration as well as their simulation matches are Kaifa 2000, 27(4),92-01. On the assumption that the conducted in the paper. On the basis of these abo ve, the quantities geonietricai shape of petroleum migration channel is regular, the lue, diff sion disper si n and accumalation distribution of permeability is well-proportioned and migration are calculated by the means of new geological modelling and channel is water saturated, an analytical model of petroleur relevant mathematical modelling. From these results, we can get migration is established in order to evaluate the relationship between the possible largest accumulation quantity. The results of modelling petroleum distance and time under the unfirm that gas pool at the regional structural high is a residual gas situation of different migration channels. It can be obviously field, the amount of gas generated is large, but preservation concluded from our research that, the higher the oil s viscosity condition is poor. From now on, the focal point of prospecting the less the oil s migration quantity is; the shorter the migration would be searching for various low-relief structural-lithologic gas distance, the slower the speed of petroleum migration ar pools, so that the study and prospecting of stratigraphic traps in quicker the decrement of migration speed. At the same time, the lower places should be strengthene Subject heading: Oil and gas bigger the pressure difference is, the larger the oil ' s migration migration,Quantitative, Dynamic-equilibrium of accumulation and quantity is; the longer the migration distance, the faster the speed dispersion, Percolation, Diffusion, Geologic model, Mathematical of petroleum migration and the slower the decrement of migration model, Non-structural reservoir Deed. Subject heading: Oil and gas migration, Percolation Analytical method, Mathematical model, Basin evolution An approach to the multi-stage formation of oil-gas pools in Numerical simulation Yurubcheno-Tokhomo accumulation zone of Siberian platform. LI Guo-du, et al.( University of Petroleum, Beijing 102249, P. R. A comparison study on the effectiveness of using biomarker and China). Shiyou Kantan Yu Kaifa 2000, 27(4),87-91. Th nitrogenous compound as indexes indicating oil and gas migration paper gives a overview of the geological characteristics, under which LI Su-mei; et al.(The Geological Survey of Canada, Calgary the giant Yurubcheno-Tokhomo zone of oil and gas accumulation Canada). Shiyou Kantan Yu kaifa 2000, 27(4),95-98.A formed in the Riphean formation on the southwestern Siberian correlation study of pyrrolic nitrogen compounds with hydrocarbon Platform. The formative process of Yurubcheno- Tokhomo zone is compounds(mainly steranes and terpanoids)in oils generated from discussed through analyzing the iphean, Vendian and Cambrian- marine and salt-lake source rocks is carried out. Results indicate Permian burial history. It is shown that the first time when oil and that differences in biomarkers of hydrocarbons between the two gas pools formed in Riphean formation is in the middle of the late different types of oil are obvious; however, the difference in the Riphe, but these pools were destroyed or transformed at the end of distribution patterns of pyrrolic nitrogen compounds of the oils iphean period when the folding and uplifting movements remain remarkably constant, indicating the impact of source organic occurred. The second hydrocarbon generation occurred from matter and maturity on pyrrolic nitrogen compound is possibly lower Cambrian to Permian periods. During these periods, although the than on hydrocarbon compounds. Results of oil migration study area underwent differential uplifting movements with small scale show that the migration fractionation effect of pyrrolic nitrogen 201994-2007chinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net