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Zha Ming. The Dynamic Models and Numerical Simulation of Secondary Petroleum Migration in Compactional Flow Basins— An Example From the Dong Ying Depression[J]. Acta Sedimentologica Sinica, 1997, 15(4): 86-90.
Citation: Zha Ming. The Dynamic Models and Numerical Simulation of Secondary Petroleum Migration in Compactional Flow Basins— An Example From the Dong Ying Depression[J]. Acta Sedimentologica Sinica, 1997, 15(4): 86-90.
shu

The Dynamic Models and Numerical Simulation of Secondary Petroleum Migration in Compactional Flow Basins— An Example From the Dong Ying Depression

  • Dept of Petroleum Resources Science,University of Petrleum,Dongying 257062

  • Received Date: 1996-10-30
  • Publish Date: 1997-12-10
  • The conceptual model of paleo- hydrodynamics and mathematical model of pseudo-3D nonstationaryflow for the Es3 member were built according to "centrifugal flow" characteristics of the fluid potentialfield of compactional flow basin as well as to expelling style of fluids from mudstones.Isostatic nets ofpaleo-hydrodynamical field were superimposed on nodal nets of compaction-displacement fluids,and thediffential equations of hydrodynamics were writen by means of Darcy' s law and hydraulic isostation,which provides a numerical method for simulating paleo-hydrodynamics, paleo-fluid potential field andsecondary hydrocarbon migration.The results of numerical simulation showed that the high potentialvalues(Max.59000m 2 /s 2 ) were located in the centre of the Lijing and Niuzhang areas and descended to-wards edges of the depression at 25Ma(late Dongying).Oil migrated from higher potential belts to low-er ones in "centrifugal flow", which was the regional dynamic condition of controlling petroleum accu-mulation and distribution.The simulations also revealed that migrating velocities are 30～40km /Ma at5Ma, 5～10km /Ma at 25Ma and 5～10km /Ma at present in the Es 3 member, respectively.The main driv-ing forces of secondary migration were different in geologic times and spaces.
  • [1] (1)Coustau, H.Formation Water and Hydrodynamics.Journal ofGeochemical Exploration, 1977, 7: 213～241.

    (2)杨绪充.含油气盆地温压环境.东营: 石油大学出版社, 1993.

    (3)查明,陈发景,张一伟.压实流盆地流体势场与油气运聚关系— 以东营凹陷为例,现代地质, 1996, 1: 102～110.

    (4) Toth,J.Cross - Fo rmational Gravity - Flow of Groundwater: AM echanism of the Transport and Accumulation of Petroleum(the Generalized Hydrolic Theory of Petroleum Migration).AAPG, Studies in Geolog y 10: Problems of Petroleum Mig ra-tion.1980, 121～167.

    (5) Hubbert, M.K.Entrapment of Petroleum under HydrodynamicConditions.AAPG Bull.1953, 37(8): 1954～2026.

    (6)陈崇希,唐仲华.地下水流动问题数值模拟.武汉: 中国地质大学, 1990
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  • Received:  1996-10-30
  • Published:  1997-12-10

The Dynamic Models and Numerical Simulation of Secondary Petroleum Migration in Compactional Flow Basins— An Example From the Dong Ying Depression

  • Dept of Petroleum Resources Science,University of Petrleum,Dongying 257062
  • Received Date: 1996-10-30
  • Publish Date: 1997-12-10

Abstract: The conceptual model of paleo- hydrodynamics and mathematical model of pseudo-3D nonstationaryflow for the Es3 member were built according to "centrifugal flow" characteristics of the fluid potentialfield of compactional flow basin as well as to expelling style of fluids from mudstones.Isostatic nets ofpaleo-hydrodynamical field were superimposed on nodal nets of compaction-displacement fluids,and thediffential equations of hydrodynamics were writen by means of Darcy' s law and hydraulic isostation,which provides a numerical method for simulating paleo-hydrodynamics, paleo-fluid potential field andsecondary hydrocarbon migration.The results of numerical simulation showed that the high potentialvalues(Max.59000m 2 /s 2 ) were located in the centre of the Lijing and Niuzhang areas and descended to-wards edges of the depression at 25Ma(late Dongying).Oil migrated from higher potential belts to low-er ones in "centrifugal flow", which was the regional dynamic condition of controlling petroleum accu-mulation and distribution.The simulations also revealed that migrating velocities are 30～40km /Ma at5Ma, 5～10km /Ma at 25Ma and 5～10km /Ma at present in the Es 3 member, respectively.The main driv-ing forces of secondary migration were different in geologic times and spaces.

Zha Ming. The Dynamic Models and Numerical Simulation of Secondary Petroleum Migration in Compactional Flow Basins— An Example From the Dong Ying Depression[J]. Acta Sedimentologica Sinica, 1997, 15(4): 86-90.
Citation: Zha Ming. The Dynamic Models and Numerical Simulation of Secondary Petroleum Migration in Compactional Flow Basins— An Example From the Dong Ying Depression[J]. Acta Sedimentologica Sinica, 1997, 15(4): 86-90.
shu

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