| 松辽盆地西斜坡水动力场与油气的聚集成藏 |
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| 关键词:Songliao Basin hydropower hydrocarbon accumulation degree of mineralization favorable area for exploration |
| 基金项目:国家“973”重大基础研究项目(编号:2006CB202300) |
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| 摘要: |
| Hydrodynamic Field and Hydrocarbon Accumulation on the West Slope of the Songliao Basin |
| Based on abundant data of hydrochemical analyses, drillings and geochemical materials and utilizing planar and vertical investigation, in combination with hydrodynamic field calculation, the authors found that the Sartu oil layer and the Gaotazi oil layer are quite comparable to each other in hydrochemical characteristics and distribution.Such comparability shows the probable existence of some windows between the two oil layers, through which the phreatic fluids migrated. This to some extent resulted in the situation that the Gaotaizi oil layer is smaller than the Sartu oil layer in size.Compaction flow and permeable flow constitute the main formation waters on the west slope, and they converge from the outer parts to the center. In hydrodynamics, mudstone expulses the fluid upwards and downwards, whereas sandstone makes the fluid flow upwards along the bedding surface. The favorable exploration positions seem to be areas where compaction flow and permeable flow converge, especially areas with high degrees of mineralization.This paper holds that the areas from the south Fuyu structural belt to the central Taikang uplifted belt for the Gaotaizi oil layer, and from Qiqihar to Pingyang for the Sartu oil layer are ideal targets for further exploration. |
| KANG De-jiang,PANG Xiong-qi,LÜ Yan-fang,FU Guang.2008.Hydrodynamic Field and Hydrocarbon Accumulation on the West Slope of the Songliao Basin[J].Acta Geoscientica Sinica,29(2):205-212. |
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