北京大学工学院能源与资源工程系学术报告（ 报告人：黄海）
发布时间: 2009-04-16 09:25:00
题目：An Overview of Oil Shale Research at the U.S. Idaho National Laboratory with a focus on Modeling of Fracturing and Oil Recovery
报告人 黄海 博士
Idaho National Laboratory, Idaho Falls, United States
时 间：4月17日（周五）下午2:00
地 点：方正大厦301会议室
报告内容摘要：
The principal mission of the Idaho National Laboratory (INL), which is part of the U.S. Department of Energy national laboratory system, is to “…ensure the nation's energy security with safe, competitive, and sustainable energy systems…” Through scientific advancements and innovative technologies, in the framework of a hybrid-energy systems approach, the INL is contributing to the advancement of new and existing energy sources, which include nuclear, unconventional fossil, advanced wind, geothermal, conventional fossil, biomass and innovative methods to convert energy into marketable forms. Areas of current research activity and growth include: 1) Physical Testing and Coupled Processes; 2) Subsurface Manipulation; 3) Performance Monitoring, Analysis, and Control; 4) Carbon and Water Management; and 5) System Process Simulation.
As part of its secure clean-energy mission, INL researchers are engaged in developing a fundamental understanding of energy recovery from oil shale and other unconventional energy resources in the Western Energy Corridor in an environmentally, socially, and economically responsible manner. The goals of this research are to help optimize production with an ability to anticipate, prevent, control and mitigate environmental consequences. The results of these efforts will aid the public in making informed choices affecting future generations and help industries that contribute to the Nation's energy security. The INL has several research projects addressing the quality of oil recovered from oil shale development and concerns over the potential environmental impacts from large scale development of this resource. An overview will be given of these research projects.
A primary focus of the INL research program is understanding how heat applied to in-situ oil shale resources will create fractures, how the fractures will evolve during the heating process and how the permeability of the host rock will change in response to fracturing. The thermochemical decomposition of high molecular weight organic material in very low permeability shales and mudstones produces large amounts of hydrocarbon and other fluids.
This is a challenging problem from a computational modeling and simulation point of view because of the coupling between chemical phenomena, fluid flow, material deformation (elastic deformation and creep) and material failure (fracturing) in a complex heterogeneous system. Our approach to this challenge is based on the coupling of discrete element models (DEMs) for material deformation and failure with computational fluid dynamics (CFD). We have investigated the application of both continuum and particle CFD models for these applications. The coupling between fluid generation, mechanical phenomena and fluid flow is important in a number of important geotechnology applications including primary migration and the recovery of oil from “shale”, and the application of DEM/CFD/chemical-kinetics models to these problems will be described. Essentially the same approach can be applied to fundamental and applied problems for which linear and nonlinear poroelastic phenomena and/or fracturing are important. These include compaction in sedimentary systems, carbon sequestration and the recovery of natural gas from tight gas reservoirs.
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报告人 黄海 博士
Idaho National Laboratory, Idaho Falls, United States
时 间：4月17日（周五）下午2:00
地 点：方正大厦301会议室
报告内容摘要：
The principal mission of the Idaho National Laboratory (INL), which is part of the U.S. Department of Energy national laboratory system, is to “…ensure the nation's energy security with safe, competitive, and sustainable energy systems…” Through scientific advancements and innovative technologies, in the framework of a hybrid-energy systems approach, the INL is contributing to the advancement of new and existing energy sources, which include nuclear, unconventional fossil, advanced wind, geothermal, conventional fossil, biomass and innovative methods to convert energy into marketable forms. Areas of current research activity and growth include: 1) Physical Testing and Coupled Processes; 2) Subsurface Manipulation; 3) Performance Monitoring, Analysis, and Control; 4) Carbon and Water Management; and 5) System Process Simulation.
As part of its secure clean-energy mission, INL researchers are engaged in developing a fundamental understanding of energy recovery from oil shale and other unconventional energy resources in the Western Energy Corridor in an environmentally, socially, and economically responsible manner. The goals of this research are to help optimize production with an ability to anticipate, prevent, control and mitigate environmental consequences. The results of these efforts will aid the public in making informed choices affecting future generations and help industries that contribute to the Nation's energy security. The INL has several research projects addressing the quality of oil recovered from oil shale development and concerns over the potential environmental impacts from large scale development of this resource. An overview will be given of these research projects.
A primary focus of the INL research program is understanding how heat applied to in-situ oil shale resources will create fractures, how the fractures will evolve during the heating process and how the permeability of the host rock will change in response to fracturing. The thermochemical decomposition of high molecular weight organic material in very low permeability shales and mudstones produces large amounts of hydrocarbon and other fluids.
This is a challenging problem from a computational modeling and simulation point of view because of the coupling between chemical phenomena, fluid flow, material deformation (elastic deformation and creep) and material failure (fracturing) in a complex heterogeneous system. Our approach to this challenge is based on the coupling of discrete element models (DEMs) for material deformation and failure with computational fluid dynamics (CFD). We have investigated the application of both continuum and particle CFD models for these applications. The coupling between fluid generation, mechanical phenomena and fluid flow is important in a number of important geotechnology applications including primary migration and the recovery of oil from “shale”, and the application of DEM/CFD/chemical-kinetics models to these problems will be described. Essentially the same approach can be applied to fundamental and applied problems for which linear and nonlinear poroelastic phenomena and/or fracturing are important. These include compaction in sedimentary systems, carbon sequestration and the recovery of natural gas from tight gas reservoirs.
欢迎广大师生参加！