Origin and Evolution of the Hydrodynamics in Sedimentary Basins——A case study of the Songliao Basin
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2006-04-10
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Key words:
- Songliao basin /
- hydrodynamics /
- local hydrodynamic units /
- petroleum migration and accumulation
Abstract: Origin and evolution of the hydrodynamics has important relationship with the migration and accumulation of petroleum in sedimentary basins. The hydrodynamics made of several hydrodynamic systems in the Songliao basin is asymmetrical obviously, with the characteristics of gravityinduced centripetal flow recharged by meteoric water mainly at its northern and northeastern regions, centrifugal flow and crossformational flow at the basin center area, as well as crossformational flowevaporation at its southern area. And every hydrodynamic unit of the hydrodynamics in the Songliao basin has its own characters in aspects of stratum pressure, the waterflow direction, potential level and vertical pressure grads. Meanwhile, the origin and evolution of the hydrodynamics is characterized by stages, and its intensity has the property of vertical zonation, with the depth increasing, strong, weak and stagnant waterzones could be divided.
Citation: | LOU Zhanghua. 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. |