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. A multiplecontinuum approach for modeling multiphase flow. Coupled hydromechanical simulation of multiphase fluid. In this compositional simulation method, the kvalue correlation improved by almehaideb et al. 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. The multiphase fluid flow in porous media is an interesting subject in the earth science and technology. Numerical simulation of singlephase and multiphase non. A single, tabbed panel organizes multiphase setups into a logical, stepbystep flow that saves time. In fluid mechanics, multiphase flow is the simultaneous flow of materials with two or more thermodynamic phases. 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. Pdf a practical method for modeling fluid and heat flow. 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. International journal of rock mechanics and mining sciences, 394, 429442.
Fundamentals 9 all of the properties of fluids and their behavior in the vicinity of solid surfaces can, in principle, be understood in. 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. Six key points, including the end points and the crossover. 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. A generalized numerical approach for modeling multiphase flow. Multiphase flow in fractured reservoirs springerlink. 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. Save up to 80% by choosing the etextbook option for isbn. To model flow in porous media with complex networks of fractures calls for adequate. Hectometre scale subvolumes of fractured oil reservoirs contain thousands of fractures with highly variable flow properties, dimensions and orientations. Pdf a numerical method as well as a theoretical study of nondarcy fluid flow through porous and fractured reservoirs is described.
Download multiphase fluid flow in porous and fractured. 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. 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. A numerical method as well as a theoretical study of nondarcy fluid flow of through porous and fractured reservoirs is described. For flow in porous media, the darcy equation has been applied. Yushu wu, in multiphase fluid flow in porous and fractured reservoirs, 2016. Multiphase fluid flow in porous and fractured reservoirs 1st edition.
Multiphase flows in fractured media are of great importance and engineering interest in geothermal development and environmental protection. Fluid flow model in fractured rock by finite volume black. 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 general flow model applied in different simulators is based on the solution of the conservation equations of momentum, mass and energy. 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. Pdf numerical simulation of singlephase and multiphase. Numerical simulation of singlephase and multiphase nondarcy. 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. The modeling of fluid flow in the reservoir and aquifer is very practical in petroleum engineering and. Multiphaseflow properties of fractured porous media article in journal of petroleum science and engineering 54. Multiphase flow simulation through porous media with.
Numerical simulation of singlephase and multiphase. Download flow through porous media or read online books in pdf, epub, tuebl, and mobi format. Fluid dynamics in naturally fractured tectonic reservoirs. Multiphase fluid flow in porous and fractured reservoirs by wu, yushu and publisher gulf professional publishing. Cfd and stress analysis finite element method, fem are seamless integrated. These flows are also of scientific interest with respect to fracturing, faults, stress interaction and underground flows. Countercurrent imbibition occurs when a watersaturated fracture surrounds a matrix block containing oil. In this study, pressure and stress distribution due to depletion in a highly fractured reservoir are predicted using our coupled fluid flow and geomechanics model with embedded discrete fracture model edfm.
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. It presently appears that the large computer will be required to investigate multiphase. Stallman abstract studies of the occurrence of surface water and ground water are commonly made with little or no regard to the unsaturated zone. Prediction of relative permeability for multiphase flow in. Rock fractures or joints often form highpermeable flow pathways and therefore dominate single or multiphase fluid transports in fractured porous media in geothermal reservoirs. Spe173222ms geomechanics coupling simulation of fracture. Multiphase fluid flow in porous and fractured reservoirs. Fluid flow in fractured shale reservoirs using distinct element method. In the past halfcentury, the study of fluid flow and transport processes in fractured porous media has received great attention and has. 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 flow in such reservoirs adds to the complexity and has been studied extensively over the last few years. Purchase multiphase fluid flow in porous and fractured reservoirs 1st edition.
Numerical methods for modelling fluid flow in highly. Pdf numerical simulation of singlephase and multiphase non. Upscaling multiphase fluid flow in naturally fractured. Naturally fractured reservoirs exist throughout the world and represent significant amounts of oil and gas reserves, water, and other natural resources on earth. A porous multiphase flow toolbox for openfoam mafiadoc. Numerical simulation of singlephase and multiphase nondarcy flow in porous and fractured reservoirs. 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. Node control volume finite element method to model fluid flow 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.
Computational methods for multiphase flows in porous media. Multiphase flow in highly fractured shale gas reservoirs. Multiphaseflow properties of fractured porous media. The book includes twenty problems, along with detailed. Numerical simulation and reservoir characterization of. Modeling and simulation of porescale multiphase fluid. 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. Multiphase flow properties of fractured geothermal rocks. Multiphase fluid flow in porous and fractured reservoirs wu. The model was developed based on a wellknown fixedstress split, which is unconditionally stable. This method is a generalization of the doubleporosity concept.
This article is published with open access at abstract this study presents analytical models for. Special topics such as the dualporosity model for fractured reservoirs, and fluid flow in gas reservoirs, are also covered. It is also prevalent in many natural phenomena these phases may consist of one chemical component e. Brine and oil permeabilities when the cell was completely saturated with each fluid were 72,600 darcys and 55,700 darcys respectively.
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. The nondarcy behavior is handled in a threedimensional, multiphase. Fluid flow includes both flow in pipes and flow in porous media. With fluents streamlined workflow, novice and expert users can set up complex multiphase simulations. Yet, this zone between the land surface and the saturated. Spatiotemporal variability of methane ebullition from lake sediments pdf, 5mb peter kang, phd 2014. To achieve this, we provide a theoretical basis to explain the effect of different parameters on the behavior of solutiongasdrive unconventional reservoirs. In this paper, a fully coupled geomechanics and multiphase fluid flow model is. A modeling approach for analysis of coupled multiphase fluid flow, heat transfer, and deformation in fractured porous rock. A new method is proposed that unifies these two approaches for modelling fluid flow processes in fractured. Fluid flow simulation in fractured reservoirs sudipta sarkar, m. Spe 122612 simulation of multiphase nondarcy flow in. This new model treats the reservoir as a double porosity medium consisting of hete.
Fluid dynamics in naturally fractured tectonic reservoirs nelson barrosgalvis1 v. Pdf elsevier, gulf professional publishing description about book. Spe spe145096pp a practical compositional method for. Naturally fractured reservoirs represent a complex class of reservoirs. Anomalous transport through porous and fractured media pdf, 10mb. Nondarcy flow, numerical reservoir simulation, well tests, multiphase flow, porous. Fluid flows in fractured geological formations are often modeled with a.
Nondarcy flow, numerical reservoir simulation, well tests, multiphase flow, porous and fractured reservoirs. Prediction of relative permeability for multiphase flow. The multiphase flow behaviour of naturally fractured reservoirs. To model flow in porous media with complex networks of fractures calls for. Multiphase fluid flow through porous matrix and complex deformable fracture system matrixmatrix,matrixfracture and fracturefracture multiphase fluid transfer complex fracture network pressure gradient. Virtually all processing technologies from cavitating pumps and turbines to papermaking and the construction of plastics involve some form of multiphase flow. The partitioning of the flow domain into computational volume elements is based on the criterion of approximate thermodynamic equilibrium at all. 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 linear flow in tight oil reservoirs onepetro.
304 1055 974 865 585 1507 620 787 1305 543 1611 80 524 118 1596 18 1124 732 1644 1091 982 285 1475 1252 174 374 770 409 937 1058 750 1449 186 970 995 1208 707 1431 1328 898