| 沉积盆地地下水动力场特征研究①——以松辽盆地为例 |
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| 引用本文： | 楼章华,程军蕊,金爱民.沉积盆地地下水动力场特征研究①——以松辽盆地为例[J].沉积学报,2006,24(2):193-201. |
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| 作者姓名： | 楼章华 程军蕊 金爱民 |
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| 作者单位： | 浙江大学海洋系 杭州 310028 |
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| 基金项目： | 国家“973”重点基础研究发展规划项目(2001CB209104)资助 |
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| 摘 要： | 盆地地下水动力场的形成演化与油气运移、聚集关系密切。由多个水动力体系组成的松辽盆地地下水动力场的形成与演化在平面上具有明显的不对称性，总体上盆地北部为大气水下渗向心流区；中央坳陷区为离心流区和越流泄水区；盆地南部以地下水的越流—蒸发泄水浓缩为主要特征，盆地边缘和隆起剥蚀区的局部地区为大气水下渗区。且形成在地层压力、流动方向、流体势、垂直压力梯度等方面各具特征的局部水动力单元。同时，地下水动力场的形成与演化具有阶段性，其水动力强度在纵向上具有分带性，由浅到深，可以划分出强、弱、停滞3个带。
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| 关 键 词： | 松辽盆地 地下水动力场 局部水动力单元 油气运聚 |
| 文章编号： | 1000-0550（2006）02-0193-09 |
| 收稿时间： | 2005-04-11 |
| 修稿时间： | 2005-08-02 |
Origin and Evolution of the Hydrodynamics in Sedimentary Basins--A case study of the Songliao Basin |
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| LOU Zhang-hua,CHENG Jun-rui,JIN Ai-min.Origin and Evolution of the Hydrodynamics in Sedimentary Basins--A case study of the Songliao Basin[J].Acta Sedimentologica Sinica,2006,24(2):193-201. |
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| Authors: | LOU Zhang-hua CHENG Jun-rui JIN Ai-min |
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| Institution: | Department of Ocean Sciences, Zhejiang University, Hangzhou 310028 |
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| Abstract: | Origin andevolution of the hydrodynamicshas important relationship with the migration and accumulation of petroleum in sedimentary basins. The hydrodynamicsmade of several hydrodynamic systemsin the Songliao basin is asymmetrical obviously, with the characteristics of gravity-induced centripetal flow recharged by meteoric water mainly at its northern and northeastern regions, centrifugal flow and cross-formational flow at the basin center area, as well as cross-formational flow-evaporation at its southern area. And every hydrodynamicunit of the hydrodynamics in the Songliao basin has its own characters in aspects of stratum pressure, the water-flow direction, potential level and vertical pressure grads. Meanwhile, the origin and evolution of the hydrodynamics is characterized by stages, and itsintensity has the property of vertical zonation, withthe depth increasing, strong, weak and stagnant water-zones could be divided. |
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| Keywords: | Songliao basin hydrodynamics local hydrodynamic units petroleum migration and accumulation |
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