A three-dimensional integrated model is developed for simulating transport and final fate of oil spills in seas.The model contains two main modules,flow and transport-fate modules.The flow module uses an unstructured ...A three-dimensional integrated model is developed for simulating transport and final fate of oil spills in seas.The model contains two main modules,flow and transport-fate modules.The flow module uses an unstructured finite-volume wave-ocean coupling model.Using unstructured meshes provides great flexibility for modeling the flow in complex geometries of tidal creeks,barriers and islands.In the transport-fate module the oil dispersion is solved using a particle-tracking method.Horizontal diffusion is simulated using random walk techniques in a Monte Carlo framework,whereas the vertical diffusion process is solved on the basis of the Langeven equation.The model simulates the most significant processes that affect the motion of oil particles,such as advection,surface spreading,evaporation,dissolution,emulsification and turbulent diffusion as well as the interaction of the oil particles with the shoreline,sedimentation and the temporal variations of oil viscosity,density and surface tension.The model simulates either continuous or instantaneous oil spills,and also other toxic matter.This model has been applied to simulate the oil spill accident in the Bohai Sea.In comparison with the observations,the numerical results indicate that the model is reasonably accurate.展开更多
Study on the residual oil distribution regularity is the important thing during the middle and later stage of the oilfield.With understanding and development of oilfield,the research methods of remaining oil are varie...Study on the residual oil distribution regularity is the important thing during the middle and later stage of the oilfield.With understanding and development of oilfield,the research methods of remaining oil are varied.Well block A is a low permeability oilfield and complex relationship between injection wells and production wells.The well pattern has low control of sand body.Based on the characteristics and the geological and dynamic data,technology of integrated 3-D geological modeling with reservoir numerical simulation is ensured to study the residual oil.Finally,deposition facies and flowing units are studied to analyze the residual oil distribution regularity.As a result,the types of residual oil were confirmed and the basis for the following development adjustment of the well block is provided.展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 50839001)the National Basic Research Program of China ("973"Program)(Grant No. 2005CB724202)the Scientific Research Foundation of the Higher Education Institutions of Liaoning Province (Grant No. 2006T018)
文摘A three-dimensional integrated model is developed for simulating transport and final fate of oil spills in seas.The model contains two main modules,flow and transport-fate modules.The flow module uses an unstructured finite-volume wave-ocean coupling model.Using unstructured meshes provides great flexibility for modeling the flow in complex geometries of tidal creeks,barriers and islands.In the transport-fate module the oil dispersion is solved using a particle-tracking method.Horizontal diffusion is simulated using random walk techniques in a Monte Carlo framework,whereas the vertical diffusion process is solved on the basis of the Langeven equation.The model simulates the most significant processes that affect the motion of oil particles,such as advection,surface spreading,evaporation,dissolution,emulsification and turbulent diffusion as well as the interaction of the oil particles with the shoreline,sedimentation and the temporal variations of oil viscosity,density and surface tension.The model simulates either continuous or instantaneous oil spills,and also other toxic matter.This model has been applied to simulate the oil spill accident in the Bohai Sea.In comparison with the observations,the numerical results indicate that the model is reasonably accurate.
文摘Study on the residual oil distribution regularity is the important thing during the middle and later stage of the oilfield.With understanding and development of oilfield,the research methods of remaining oil are varied.Well block A is a low permeability oilfield and complex relationship between injection wells and production wells.The well pattern has low control of sand body.Based on the characteristics and the geological and dynamic data,technology of integrated 3-D geological modeling with reservoir numerical simulation is ensured to study the residual oil.Finally,deposition facies and flowing units are studied to analyze the residual oil distribution regularity.As a result,the types of residual oil were confirmed and the basis for the following development adjustment of the well block is provided.
