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Flow and Transport Properties of Unconventional Reservoirs 2018

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ISBN: 9783039211166 9783039211173 Year: Pages: 364 DOI: 10.3390/books978-3-03921-117-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Abstract

Unconventional reservoirs are usually complex and highly heterogeneous, such as shale, coal, and tight sandstone reservoirs. The strong physical and chemical interactions between fluids and pore surfaces lead to the inapplicability of conventional approaches for characterizing fluid flow in these low-porosity and ultralow-permeability reservoir systems. Therefore, new theories and techniques are urgently needed to characterize petrophysical properties, fluid transport, and their relationships at multiple scales for improving production efficiency from unconventional reservoirs. This book presents fundamental innovations gathered from 21 recent works on novel applications of new techniques and theories in unconventional reservoirs, covering the fields of petrophysical characterization, hydraulic fracturing, fluid transport physics, enhanced oil recovery, and geothermal energy. Clearly, the research covered in this book is helpful to understand and master the latest techniques and theories for unconventional reservoirs, which have important practical significance for the economic and effective development of unconventional oil and gas resources.

Keywords

fracturing fluid --- rheology --- chelating agent --- viscosity --- polymer --- fluid-solid interaction --- velocity profile --- the average flow velocity --- flow resistance --- pore network model --- shale gas --- volume fracturing --- finite volume method --- production simulation --- multi-scale flow --- multi-scale fracture --- shale gas reservoir --- fractured well transient productivity --- succession pseudo-steady state (SPSS) method --- complex fracture network --- multi-scale flow --- analysis of influencing factors --- tight sandstones --- spontaneous imbibition --- remaining oil distributions --- imbibition front --- imbibition recovery --- NMR --- slip length --- large density ratio --- contact angle --- pseudo-potential model --- lattice Boltzmann method --- micro-fracture --- dissolved gas --- experimental evaluation --- reservoir depletion --- recovery factor --- tight oil --- Lucaogou Formation --- tight oil --- pore structure --- prediction by NMR logs --- tight oil reservoir --- SRV-fractured horizontal well --- multiporosity and multiscale --- flow regimes --- productivity contribution degree of multimedium --- equilibrium permeability --- non-equilibrium permeability --- matrix–fracture interaction --- effective stress --- coal deformation --- porous media --- non-linear flow --- conformable derivative --- fractal --- hydraulic fracturing --- tight reservoirs --- fracture diversion --- extended finite element method --- fracture network --- gas adsorption capacity --- shale reservoirs --- influential factors --- integrated methods --- sulfonate gemini surfactant --- thickener --- temperature-resistance --- clean fracturing fluid --- low-salinity water flooding --- clay mineral composition --- enhanced oil recovery --- wetting angle --- pH of formation water --- fractional diffusion --- fractal geometry --- analytical model --- shale gas reservoir --- carbonate reservoir --- petrophysical characterization --- pore types --- pore structure --- permeability --- fractal dimension --- reservoir classifications --- deep circulation groundwater --- groundwater flow --- geothermal water --- faults --- isotopes --- shale permeability --- local effect --- global effect --- matrix-fracture interactions --- nanopore --- pore structure --- shale --- tight sandstone --- mudstone --- nitrogen adsorption --- fractal --- enhanced geothermal system --- well-placement optimization --- fracture continuum method --- 0-1 programming --- unconventional reservoirs --- petrophysical characterization --- fluid transport physics

Computational Methods for Fracture

Author:
ISBN: 9783039216864 9783039216871 Year: Pages: 404 DOI: 10.3390/books978-3-03921-687-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Computer Science
Added to DOAB on : 2019-12-09 11:49:16
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This book offers a collection of 17 scientific papers about the computational modeling of fracture. Some of the manuscripts propose new computational methods and/or how to improve existing cutting edge methods for fracture. These contributions can be classified into two categories: 1. Methods which treat the crack as strong discontinuity such as peridynamics, scaled boundary elements or specific versions of the smoothed finite element methods applied to fracture and 2. Continuous approaches to fracture based on, for instance, phase field models or continuum damage mechanics. On the other hand, the book also offers a wide range of applications where state-of-the-art techniques are employed to solve challenging engineering problems such as fractures in rock, glass, concrete. Also, larger systems such as fracture in subway stations due to fire, arch dams, or concrete decks are studied.

Keywords

plate --- FSDT --- HSDT --- Mindlin --- incompatible approximation --- fracture --- screened-Poisson model --- gradient-enhanced model --- damage-plasticity model --- implicit gradient-enhancement --- rock --- shear failure --- elastoplastic behavior --- extended scaled boundary finite element method (X-SBFEM) --- stress intensity factors --- fracture process zone (FPZ) --- thermomechanical analysis --- moderate fire --- finite element simulations --- metallic glass matrix composite --- finite element analysis --- shear band --- microstructure --- ductility --- peridynamics --- fatigue --- rolling contact --- damage --- rail squats --- cracks --- steel reinforced concrete frame --- reinforced concrete core tube --- progressive collapse analysis --- loss of key components --- self-healing --- damage-healing mechanics --- super healing --- anisotropic --- brittle material --- Brittle Fracture --- cell-based smoothed-finite element method (CS-FEM) --- Phase-field model --- ABAQUS UEL --- the Xulong arch dam --- yielding region --- cracking risk --- overall stability --- dam stress zones --- concrete creep --- prestressing stress --- compressive stress --- FE analysis --- force transfer --- grouting --- fracture network modeling --- numerical simulation --- fluid–structure interaction --- bulk damage --- brittle fracture --- rock fracture --- random fracture --- Mohr-Coulomb --- Discontinuous Galerkin --- EPB shield machine --- conditioned sandy pebble --- particle element model --- parameters calibration --- geometric phase --- photonic orbital angular momentum --- topological insulator --- topological photonic crystal --- fatigue crack growth --- surface crack --- crack shape change --- three-parameter model --- LEFM --- XFEM/GFEM --- SBFEM --- phase field --- n/a

Mathematical Modeling of Fluid Flow and Heat Transfer in Petroleum Industries and Geothermal Applications

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ISBN: 9783039287208 / 9783039287215 Year: Pages: 470 DOI: 10.3390/books978-3-03928-721-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-06-09 16:38:57
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Geothermal energy is the thermal energy generated and stored in the Earth's core, mantle, and crust. Geothermal technologies are used to generate electricity and to heat and cool buildings. To develop accurate models for heat and mass transfer applications involving fluid flow in geothermal applications or reservoir engineering and petroleum industries, a basic knowledge of the rheological and transport properties of the materials involved (drilling fluid, rock properties, etc.)—especially in high-temperature and high-pressure environments—are needed. This Special Issue considers all aspects of fluid flow and heat transfer in geothermal applications, including the ground heat exchanger, conduction and convection in porous media. The emphasis here is on mathematical and computational aspects of fluid flow in conventional and unconventional reservoirs, geothermal engineering, fluid flow, and heat transfer in drilling engineering and enhanced oil recovery (hydraulic fracturing, CO2 injection, etc.) applications.

Keywords

dynamic hydraulic-fracturing experiments --- dynamic crack tip --- fluid front kinetics --- energy conservation analysis --- cost-effective --- frequency conversion technology (FCT) --- ventilation --- methane removal --- computational fluid dynamic (CFD) --- spatiotemporal characteristics --- capacitance-resistance model --- aquifer support --- inter-well connectivity --- production optimization --- karst carbonate reservoir --- tight reservoir --- huff-‘n-puff --- fracture simulation --- enhanced oil recovery --- CO2 diffusion --- percolation model --- fractal theory --- microstructure --- critical porosity --- conductivity --- permeability --- tight oil reservoirs --- fracture compressibility --- numerical simulation --- flowback --- fracture uncertainty --- enhanced geothermal systems --- multiple parallel fractures --- semi-analytical solution --- main gas pipeline --- pressure fluctuations --- unsteady process --- multifractal theory --- fractal theory --- pore structure --- mercury intrusion porosimetry --- pore size distribution --- natural gas --- pipeline network --- continuity/momentum and energy equations coupled --- efficient simulation --- enhanced gas recovery --- longitudinal dispersion coefficient --- injection orientation --- supercritical CO2 --- CO2 permeability --- Coal excavation --- coal and rock fracture --- multiple structural units (MSU) --- energy dissipation --- AE energy --- cement --- non-Newtonian fluids --- rheology --- variable viscosity --- diffusion --- underground coal gasification (UCG) --- economics --- cost of electricity (COE) --- techno-economic model --- methanol --- ammonia --- carbon capture and storage (CCS) --- carbon capture and utilization (CCU) --- electricity generation --- process simulation --- fractal --- slippage effect --- Knudsen diffusion --- surface diffusion --- apparent permeability --- wellbore temperature --- bottom-hole pressure --- multi-pressure system --- comprehensive heat transfer model --- leakage and overflow --- GSHP (ground source heat pump) --- heat transfer --- coupled heat conduction and advection --- nest of tubes --- three-dimensional numerical simulation --- sloshing --- real-scale --- highly viscous fluids --- Navier-Stokes equations --- impact pressure --- flowback --- complex fracture network --- shale oil --- porous media --- fractal theory --- particles model --- permeability --- tube bundle model --- cement slurries --- non-Newtonian fluids --- rheology --- constitutive relations --- viscosity --- yield stress --- thixotropy --- mathematical modeling --- computational fluid dynamics (CFD) --- drilling --- porous media --- multiphase flow --- hydraulic fracturing --- geothermal --- enhanced oil recovery

Fluid Flow in Fractured Porous Media

Authors: ---
ISBN: 9783039214235 9783039214242 Year: Volume: 1 Pages: 578 DOI: 10.3390/books978-3-03921-424-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Abstract

The fluid flow in fracture porous media plays a significant role in the assessment of deep underground reservoirs, such as through CO2 sequestration, enhanced oil recovery, and geothermal energy development. Many methods have been employed—from laboratory experimentation to theoretical analysis and numerical simulations—and allowed for many useful conclusions. This Special Issue aims to report on the current advances related to this topic. This collection of 58 papers represents a wide variety of topics, including on granite permeability investigation, grouting, coal mining, roadway, and concrete, to name but a few. We sincerely hope that the papers published in this Special Issue will be an invaluable resource for our readers.

Keywords

scanning electron microscope (SEM) images --- permeability --- high temperature --- Darcy’s law --- confining pressures --- chemical grouts --- grain size of sand --- initial water contained in sand --- grouted sand --- macroscopic mechanical behaviors --- microstructure characteristics --- ductile failure --- gas concentration --- gob-side entry retaining (GER) --- limestone roof --- roof-cutting resistance --- roadside backfill body (RBB) --- solid backfill coal mining --- goaf --- water soaked height --- loose gangue backfill material --- deformation --- crushing ratio --- fracture grouting --- cement–silicate grout --- geophysical prospecting --- seepage --- Yellow River Embankment --- contiguous seams --- water-dripping roadway --- roadway deformation --- bolt support --- pervious concrete --- permeability coefficient --- porosity --- pore distribution characteristics --- strength --- soil–structure interface --- internal erosion --- critical hydraulic gradient --- orthogonal tests --- Pseudo Steady-State (PPS) constant --- finite-conductivity fracture --- conductivity-influence function --- normalized conductivity-influence function --- circular closed reservoir --- glutenite --- gravel --- hydraulic fracture --- numerical simulation --- propagation --- glauberite cavern for storing oil &amp --- gas --- thermal-hydrological-chemical interactions --- temperature --- brine concentration --- microstructure --- micro-CT --- damage --- cyclic heating and cooling --- physical and mechanical parameters --- failure mode --- acoustic emission --- anisotropy --- bedding plane orientation --- coal --- gas --- adsorption–desorption --- laboratory experiment --- pore pressure --- hydro-mechanical coupling --- fracture closure --- constitutive model --- effective stress --- debris flow --- dynamic characteristics --- numerical analysis --- debris-resisting barriers --- coal measures sandstone --- creep characteristics --- seepage pressure --- seepage-creep --- microscopic morphology --- Darcy flow --- heterogeneity --- numerical manifold method --- high-order --- refraction law --- hydraulic fracture network --- cohesive element method --- coal seams --- fracture propagation --- discontinuous natural fracture --- secondary fracture --- fault water inrush --- coupled THM model --- nonlinear flow in fractured porous media --- numerical model --- warning levels of fault water inrush --- bentonite-sand mixtures --- differential settlement --- deformation --- hydraulic conductivity --- crack --- geogrid --- enhanced permeability --- deviatoric stress --- mechanical behavior transition --- CH4 seepage --- volumetric strain --- strain-based percolation model --- rock-soil mechanics --- soft filling medium --- segmented grouting --- split grouting --- model experiment --- reinforcement mechanism --- longwall mining --- gob behaviors --- stress relief --- permeability --- gas drainage --- hard and thick magmatic rocks --- orthogonal ratio test --- similar simulation --- fracture --- bed separation --- disaster-causing mechanism --- artificial joint rock --- shear-flow coupled test --- hydraulic aperture --- roughness --- seepage pressure --- mixing --- conservative solute --- fractal --- roughness --- fracture --- transversely isotropic rocks --- failure mechanism --- particle flow modeling --- interface --- n/a --- fractured porous rock mass --- grouting experiment --- visualization system --- flow law --- layered progressive grouting --- sandstone and mudstone particles --- rheological deformation --- segmented rheological model --- rheological limit strain --- rheological test --- water-rock interaction --- dry-wet cycles --- slope stability --- laboratory experiment --- mechanical properties --- Xinjiang --- land reclamation --- management period --- soil particle size --- fluid flow in reclaimed soil --- effluents --- soil properties --- cohesive soils --- contamination --- time variation --- stabilization --- mixer --- viscoelastic fluid --- pore structure --- orthogonal test --- fluid–solid coupling theory --- similar-material --- regression equation --- optimum proportioning --- hydraulic fracturing --- gas fracturing --- oriented perforation --- fracture propagation --- damage mechanics --- fluid viscosity --- CO2 flooding --- supercritical CO2 --- CO2 geological storage --- tight sandstone gas reservoirs --- enhanced gas recovery --- flotation --- coal particle --- collision angle --- initial settlement position --- particle velocity --- adhesion efficiency --- green mining --- paste-like slurry --- XRD --- intelligent torque rheometer --- on-site monitoring --- cyclic wetting-drying --- deterioration --- sandstone --- mudstone --- elastic modulus --- uniaxial compressive strength --- permeability characteristics --- grading broken gangue --- compressive stress --- compression deformation --- mine shaft --- alternate strata --- surrounding rock --- shaft lining --- relief excavation --- consolidation process --- unsaturated soil --- semi-analytical solution --- impeded drainage boundary --- excess pore-pressures --- coalbed methane (CBM) --- soft coal masses --- pore structure --- fractal pore characteristics --- hydraulic fractures --- PPCZ --- multitude parameters --- propagation pattern --- stress interference --- naturally fracture --- filtration effects --- grout penetration --- unified pipe-network method --- two-phase flow --- fractured porous medium --- new cementitious material --- cement-based paste discharge --- XRD --- TG/DTG --- SEM --- MIP --- mechanical behaviors --- rock fracture --- shear-flow coupled test --- constant normal stiffness conditions --- transmissivity --- hydraulic aperture --- water inrush prevention --- backfill mining --- strata movement --- ground pressure --- floor failure depth --- water–rock interaction --- degradation mechanism --- mixed mode fracture resistance --- fracture criteria --- T-stress --- hydro-power --- high-steep slope --- fractured rock --- permeability --- seepage control --- gas-bearing coal --- electrical potential --- charge separation --- gas adsorption --- damage evolution --- Unsaturation --- chloride --- concrete --- coupling model --- numerical calculation --- debris flow --- forecasting --- rainfall-unstable soil coupling mechanism(R-USCM) --- scoops3D --- Jiaohe --- non-aqueous phase liquid --- finite element method --- two-phase flow --- mixed-form formulation --- FLAC --- pore structure --- movable fluid --- tight sandstones --- Ordos Basin --- tectonically deformed coal --- coal and gas outburst --- coal-like material --- mechanical properties --- deformation feature --- adsorption/desorption properties --- minerals --- mechanical properties --- uniaxial compressive strength --- crack distribution characteristics --- discrete element method --- lignite --- nitric acid modification --- pore structure --- surface characteristics --- adsorption performance --- n/a

Fluid Flow in Fractured Porous Media

Authors: ---
ISBN: 9783039214730 9783039214747 Year: Volume: 2 Pages: 492 DOI: 10.3390/books978-3-03921-474-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
License:

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Abstract

The fluid flow in fracture porous media plays a significant role in the assessment of deep underground reservoirs, such as through CO2 sequestration, enhanced oil recovery, and geothermal energy development. Many methods have been employed—from laboratory experimentation to theoretical analysis and numerical simulations—and allowed for many useful conclusions. This Special Issue aims to report on the current advances related to this topic. This collection of 58 papers represents a wide variety of topics, including on granite permeability investigation, grouting, coal mining, roadway, and concrete, to name but a few. We sincerely hope that the papers published in this Special Issue will be an invaluable resource for our readers.

Keywords

scanning electron microscope (SEM) images --- permeability --- high temperature --- Darcy’s law --- confining pressures --- chemical grouts --- grain size of sand --- initial water contained in sand --- grouted sand --- macroscopic mechanical behaviors --- microstructure characteristics --- ductile failure --- gas concentration --- gob-side entry retaining (GER) --- limestone roof --- roof-cutting resistance --- roadside backfill body (RBB) --- solid backfill coal mining --- goaf --- water soaked height --- loose gangue backfill material --- deformation --- crushing ratio --- fracture grouting --- cement–silicate grout --- geophysical prospecting --- seepage --- Yellow River Embankment --- contiguous seams --- water-dripping roadway --- roadway deformation --- bolt support --- pervious concrete --- permeability coefficient --- porosity --- pore distribution characteristics --- strength --- soil–structure interface --- internal erosion --- critical hydraulic gradient --- orthogonal tests --- Pseudo Steady-State (PPS) constant --- finite-conductivity fracture --- conductivity-influence function --- normalized conductivity-influence function --- circular closed reservoir --- glutenite --- gravel --- hydraulic fracture --- numerical simulation --- propagation --- glauberite cavern for storing oil &amp --- gas --- thermal-hydrological-chemical interactions --- temperature --- brine concentration --- microstructure --- micro-CT --- damage --- cyclic heating and cooling --- physical and mechanical parameters --- failure mode --- acoustic emission --- anisotropy --- bedding plane orientation --- coal --- gas --- adsorption–desorption --- laboratory experiment --- pore pressure --- hydro-mechanical coupling --- fracture closure --- constitutive model --- effective stress --- debris flow --- dynamic characteristics --- numerical analysis --- debris-resisting barriers --- coal measures sandstone --- creep characteristics --- seepage pressure --- seepage-creep --- microscopic morphology --- Darcy flow --- heterogeneity --- numerical manifold method --- high-order --- refraction law --- hydraulic fracture network --- cohesive element method --- coal seams --- fracture propagation --- discontinuous natural fracture --- secondary fracture --- fault water inrush --- coupled THM model --- nonlinear flow in fractured porous media --- numerical model --- warning levels of fault water inrush --- bentonite-sand mixtures --- differential settlement --- deformation --- hydraulic conductivity --- crack --- geogrid --- enhanced permeability --- deviatoric stress --- mechanical behavior transition --- CH4 seepage --- volumetric strain --- strain-based percolation model --- rock-soil mechanics --- soft filling medium --- segmented grouting --- split grouting --- model experiment --- reinforcement mechanism --- longwall mining --- gob behaviors --- stress relief --- permeability --- gas drainage --- hard and thick magmatic rocks --- orthogonal ratio test --- similar simulation --- fracture --- bed separation --- disaster-causing mechanism --- artificial joint rock --- shear-flow coupled test --- hydraulic aperture --- roughness --- seepage pressure --- mixing --- conservative solute --- fractal --- roughness --- fracture --- transversely isotropic rocks --- failure mechanism --- particle flow modeling --- interface --- n/a --- fractured porous rock mass --- grouting experiment --- visualization system --- flow law --- layered progressive grouting --- sandstone and mudstone particles --- rheological deformation --- segmented rheological model --- rheological limit strain --- rheological test --- water-rock interaction --- dry-wet cycles --- slope stability --- laboratory experiment --- mechanical properties --- Xinjiang --- land reclamation --- management period --- soil particle size --- fluid flow in reclaimed soil --- effluents --- soil properties --- cohesive soils --- contamination --- time variation --- stabilization --- mixer --- viscoelastic fluid --- pore structure --- orthogonal test --- fluid–solid coupling theory --- similar-material --- regression equation --- optimum proportioning --- hydraulic fracturing --- gas fracturing --- oriented perforation --- fracture propagation --- damage mechanics --- fluid viscosity --- CO2 flooding --- supercritical CO2 --- CO2 geological storage --- tight sandstone gas reservoirs --- enhanced gas recovery --- flotation --- coal particle --- collision angle --- initial settlement position --- particle velocity --- adhesion efficiency --- green mining --- paste-like slurry --- XRD --- intelligent torque rheometer --- on-site monitoring --- cyclic wetting-drying --- deterioration --- sandstone --- mudstone --- elastic modulus --- uniaxial compressive strength --- permeability characteristics --- grading broken gangue --- compressive stress --- compression deformation --- mine shaft --- alternate strata --- surrounding rock --- shaft lining --- relief excavation --- consolidation process --- unsaturated soil --- semi-analytical solution --- impeded drainage boundary --- excess pore-pressures --- coalbed methane (CBM) --- soft coal masses --- pore structure --- fractal pore characteristics --- hydraulic fractures --- PPCZ --- multitude parameters --- propagation pattern --- stress interference --- naturally fracture --- filtration effects --- grout penetration --- unified pipe-network method --- two-phase flow --- fractured porous medium --- new cementitious material --- cement-based paste discharge --- XRD --- TG/DTG --- SEM --- MIP --- mechanical behaviors --- rock fracture --- shear-flow coupled test --- constant normal stiffness conditions --- transmissivity --- hydraulic aperture --- water inrush prevention --- backfill mining --- strata movement --- ground pressure --- floor failure depth --- water–rock interaction --- degradation mechanism --- mixed mode fracture resistance --- fracture criteria --- T-stress --- hydro-power --- high-steep slope --- fractured rock --- permeability --- seepage control --- gas-bearing coal --- electrical potential --- charge separation --- gas adsorption --- damage evolution --- Unsaturation --- chloride --- concrete --- coupling model --- numerical calculation --- debris flow --- forecasting --- rainfall-unstable soil coupling mechanism(R-USCM) --- scoops3D --- Jiaohe --- non-aqueous phase liquid --- finite element method --- two-phase flow --- mixed-form formulation --- FLAC --- pore structure --- movable fluid --- tight sandstones --- Ordos Basin --- tectonically deformed coal --- coal and gas outburst --- coal-like material --- mechanical properties --- deformation feature --- adsorption/desorption properties --- minerals --- mechanical properties --- uniaxial compressive strength --- crack distribution characteristics --- discrete element method --- lignite --- nitric acid modification --- pore structure --- surface characteristics --- adsorption performance --- n/a

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