A thorough discussion of practical aspects of the subjects is presented in a consistent manner, and the level of treatment is rigorous without being unnecessarily abstract. Tough2 is set up with a modular architecture, in which the main flow and transport module interfaces with an equationofstate eos module describing the thermophysical. The flow of multiphase fluids in fractured porous media affects a large number of industries that exploit geological resources, such as petroleum, co 2 sequestration, geological disposal of nuclear waste, mining and tunnelling. Multiphase fluid flow through porous matrix and complex deformable fracture system matrixmatrix,matrixfracture and fracturefracture multiphase fluid transfer complex fracture network pressure gradient. Spe 122612 simulation of multiphase nondarcy flow in. Multiphase fluid flow in porous and fractured reservoirs. Coupled hydromechanical simulation of multiphase fluid. Spe173222ms geomechanics coupling simulation of fracture. Fundamentals 9 all of the properties of fluids and their behavior in the vicinity of solid surfaces can, in principle, be understood in. The multiphase fluid flow in porous media is an interesting subject in the earth science and technology. With fluents streamlined workflow, novice and expert users can set up complex multiphase simulations. It is also prevalent in many natural phenomena these phases may consist of one chemical component e.
Numerical simulation of singlephase and multiphase. The modeling of fluid flow in the reservoir and aquifer is very practical in petroleum engineering and. Six key points, including the end points and the crossover. Nondarcy flow, numerical reservoir simulation, well tests, multiphase flow, porous. In fluid mechanics, multiphase flow is the simultaneous flow of materials with two or more thermodynamic phases. Wide fracture multiphase flow measurements a steadystate oilbrine relative permeability test was conducted using the wide fracture flow cell and a fracture width of 0. The book includes twenty problems, along with detailed. Yet, this zone between the land surface and the saturated.
A single, tabbed panel organizes multiphase setups into a logical, stepbystep flow that saves time. Multiphase fluid flow in porous and fractured reservoirs wu. Request pdf upscaling multiphase fluid flow in naturally fractured reservoirs hydrocarbon recovery from fractured porous reservoirs is difficult to predict as it depends on the focusing of the. Hydrocarbon recovery from fractured porous reservoirs is difficult to predict as it depends on the focusing of the flow and the local balance of viscous, gravitational, and capillary forces. Multiphase fluid flow in porous and fractured reservoirs by wu, yushu and publisher gulf professional publishing. The main objective of this work is to gain a general understanding of the performance of tight oil reservoirs during transient linear twophase flow producing at constant flowing pressure. Naturally fractured reservoirs exist throughout the world and represent significant amounts of oil and gas reserves, water, and other natural resources on earth. These flows are also of scientific interest with respect to fracturing, faults, stress interaction and underground flows. Multiphase fluid flow in porous and fractured reservoirs discusses the process of modeling fluid flow in petroleum and natural gas reservoirs, a practice that has become increasingly complex. Pdf a numerical method as well as a theoretical study of nondarcy fluid flow through porous and fractured reservoirs is described. The governing equations for multiphase fluid and heat flow have the same mathematical form, regardless of the nature and number of fluid phases and components present. Fluid flow includes both flow in pipes and flow in porous media. Upscaling multiphase fluid flow in naturally fractured.
Save up to 80% by choosing the etextbook option for isbn. A modeling approach for analysis of coupled multiphase fluid flow, heat transfer, and deformation in fractured porous rock. Investigation of multiphase fluid flow through fractured and fissured porous media existing in rock and soil layers plays a key role in diverse applications of geotechnical engineering and energy engineering zienkiewicz et al. The multiphase flow behaviour of naturally fractured reservoirs. Rigorous upscaling of multiphase flow in fractured systems. The partitioning of the flow domain into computational volume elements is based on the criterion of approximate thermodynamic equilibrium at all. Brine and oil permeabilities when the cell was completely saturated with each fluid were 72,600 darcys and 55,700 darcys respectively. Numerical simulation of singlephase and multiphase nondarcy flow in porous and fractured reservoirs. Multiphase fluid flow in porous and fractured reservoirs 1st edition. Pdf a practical method for modeling fluid and heat flow.
The nondarcy behavior is handled in a threedimensional, multiphase flow reservoir simulator, while the model formulation incorporates the forchheimer equation for describing singlephase or multiphase nondarcy flow and displacement. To model flow in porous media with complex networks of fractures calls for adequate. Fluid dynamics in naturally fractured tectonic reservoirs. A new method is proposed that unifies these two approaches for modelling fluid flow processes in fractured. In this model, vuggy fractured rock is conceptualized as a tripleor multiplecontinuum medium, consisting of 1 highly permeable fractures, 2 lowpermeability rock matrix, and 3 varioussized vugs. Cfd and stress analysis finite element method, fem are seamless integrated.
Numerical simulation of singlephase and multiphase non. Hectometre scale subvolumes of fractured oil reservoirs contain thousands of fractures with highly variable flow properties, dimensions and orientations. Burns earth resources laboratory department of earth, atmospheric, and planetary sciences massachusetts institute of technology cambridge, ma 029 abstract the purpose of this study is to analyze fluid flow in fractured reservoirs. Spe spe145096pp a practical compositional method for. A numerical method as well as a theoretical study of nondarcy fluid flow of through porous and fractured reservoirs is described. To achieve this, we provide a theoretical basis to explain the effect of different parameters on the behavior of solutiongasdrive unconventional reservoirs. Numerical methods for modelling fluid flow in highly. Pdf numerical simulation of singlephase and multiphase. Countercurrent imbibition occurs when a watersaturated fracture surrounds a matrix block containing oil.
Download multiphase fluid flow in porous and fractured. A numerical method as well as a theoretical study of nondarcy fluid flow through porous and fractured reservoirs is described. Prediction of relative permeability for multiphase flow in. Spe members abstract a numerical simulation model is developed for characterizing threedimensional multiphase fluid flow phenomena in naturally fractured reservoirs. In this compositional simulation method, the kvalue correlation improved by almehaideb et al. In hydrology, the flow of water and air creates twophase flow and in petroleum engineering, the flow of water and oil creates twophase flow mcwhorter and sunada, 1990. Computational methods for multiphase flows in porous media. Yushu wu, in multiphase fluid flow in porous and fractured reservoirs, 2016. Node control volume finite element method to model fluid flow in.
Multiphase flows in fractured media are of great importance and engineering interest in geothermal development and environmental protection. In the past halfcentury, the study of fluid flow and transport processes in fractured porous media has received great attention and has. Multiphase flow in such reservoirs adds to the complexity and has been studied extensively over the last few years. Spatiotemporal variability of methane ebullition from lake sediments pdf, 5mb peter kang, phd 2014. The general flow model applied in different simulators is based on the solution of the conservation equations of momentum, mass and energy. For flow in porous media, the darcy equation has been applied.
Numerical simulation of singlephase and multiphase nondarcy. Multiphaseflow properties of fractured porous media article in journal of petroleum science and engineering 54. Rock fractures or joints often form highpermeable flow pathways and therefore dominate single or multiphase fluid transports in fractured porous media in geothermal reservoirs. This new model treats the reservoir as a double porosity medium consisting of hete. Multiphase linear flow in tight oil reservoirs onepetro. A generalized numerical approach for modeling multiphase flow. Download flow through porous media or read online books in pdf, epub, tuebl, and mobi format. Stallman abstract studies of the occurrence of surface water and ground water are commonly made with little or no regard to the unsaturated zone. Introduction darcys law has been used exclusively in studies of porousmedium flow in reservoirs, however, there is considerable. Rigorous upscaling of multiphase flow in fractured systems 4 procedure to account for flow in geometrically complex systems to date all the analysis has assumed a simplistic fracture geometry. Fluid flow model in fractured rock by finite volume black. Nondarcy flow, numerical reservoir simulation, well tests, multiphase flow, porous and fractured reservoirs. Multiphase flow in fractured reservoirs springerlink. In a benchmark gasliquid pipe flow simulation, the setup proved 25% faster and eliminated the need to access 17 scattered software places.
Multiphase fluid flow in porous and fractured reservoirs discusses the process of modeling fluid flow in petroleum and natural gas reservoirs, a practice that has become increasingly complex thanks to multiple fractures in horizontal drilling and the discovery of more unconventional reservoirs and resources the book updates the reservoir engineer of today with the latest developments in. Multiphase fluid flow in fractured porous rock is an important process because 60% of the worlds remaining oil reserves reside in fractured formations 1 and fractures are a ubiquitous feature of the shallow subsurface influencing water extraction, infiltration, and. This method is a generalization of the doubleporosity concept. The model was developed based on a wellknown fixedstress split, which is unconditionally stable. In this paper, a fully coupled geomechanics and multiphase fluid flow model is.
Prediction of relative permeability for multiphase flow. Virtually all processing technologies from cavitating pumps and turbines to papermaking and the construction of plastics involve some form of multiphase flow. A multiplecontinuum approach for modeling multiphase flow. Anomalous transport through porous and fractured media pdf, 10mb. Multiphase flow properties of fractured geothermal rocks. Fluid flows in fractured geological formations are often modeled with a.
The nondarcy behavior is handled in a threedimensional, multiphase. Flow through porous media download ebook pdf, epub. Fluid flow simulation in fractured reservoirs sudipta sarkar, m. Multiphaseflow properties of fractured porous media. An improved dual porosity model for simulation of multiphase flow in fractured reservoirs is discussed. A multiple interacting continua method minc is presented which is applicable for numerical simulation of heat and multiphase fluid flow in multidimensional, fractured porous media. Multiphase fluid flow in porous and fractured reservoirs discusses the process of modeling fluid flow in petroleum and natural gas reservoirs, a practice that has become increasingly complex thanks to multiple fractures in horizontal drilling and the discovery of more unconventional reservoirs and resources. Naturally fractured reservoirs represent a complex class of reservoirs. Pdf numerical simulation of singlephase and multiphase non. Numerical simulation and reservoir characterization of. International journal of rock mechanics and mining sciences, 394, 429442. Modeling and simulation of porescale multiphase fluid. Fluid dynamics in naturally fractured tectonic reservoirs nelson barrosgalvis1 v. Fluid flow in fractured shale reservoirs using distinct element method.
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