| 江汉盆地海相地层油气勘探前景的包裹体证据 |
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| 关键词:organic inclusions oil gas exploration petroleum prospects marine strata Jianghan basin |
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| Petroteum Prospects for Marine Strata in the Jianghan Basin——Evidence from Fluid Inclusions |
| Fluid inclusions of marine strata in the Jianghan ba1sin can be classified,according to diagenetic succession and paragenesis,into 6 stages and related 5 association types,of which the 2nd to 5th association types,i.e.from the 3th to 6th stages,with homogenization temperatures of 105～180℃,salinities of 8～20ω (NaCl) eq %, an organic inclusion abundance of 67.3%,and average total hydrocarbon content of 0.29×10 -6 and a ratio of CH 4/CO 2 of 1.32,are closely related to the generation, migration and accummulation of petroleum. According to the various parameters of the inclusions combined with other organic geochemical data,it has been demonstrated that the petroleum prospects of the Permian and Trassic marine strata in the Jianghan basin is promising because of its:①good type of kerogen,②high abundance of organic matter,③high maturity of hydrocarbon evolution,④occurrence and migration and accummulation of oil and gas synchronous with the formation of traps,and ⑤ well preserved oil gas reservoirs. |
| TAN Jian-xiong,LIU Xiu-feng,LI Yu-sheng,HUANG Ke-nan,KE Xiao-ping.1999.Petroteum Prospects for Marine Strata in the Jianghan Basin——Evidence from Fluid Inclusions[J].Acta Geoscientica Sinica,20(1):55-62. |
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