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This multidisciplinary book covers a wide range of topics addressing critical challenges for advancing the understanding and management of shale oil and shale gas resources. Both fundamental and practical issues are considered. By covering a variety of technical topics, we aim to contribute to building a more integrated perspective to meet major challenges faced by shale resources. Combining complementary techniques and examining multiple sources of data serve to advance our current knowledge about these unconventional reservoirs. The book is a result of interdisciplinary and collaborative work. The content includes contributions authored by active scientists with ample expertise in their fields. Each article was carefully peer-reviewed by researchers, and the editorial process was performed by an experienced team of Senior Editors, Guest Editors, Topic Editors, and Editorial Board Members. The first part is devoted to fundamental topics, mostly investigated on the laboratory scale. The second part elaborates on larger scales (at near-wellbore and field scales). Finally, two related technologies, which could be relevant for shale plays applications, are presented. With this Special Issue, we provide a channel for sharing information and lessons learned collected from different plays and from different disciplines.

fracture mode --- Multi Finger Caliper --- sensitivity analysis --- shale oil --- borehole stability --- shale reservoir --- XRD --- XRF --- shear deformation --- optimization --- DSC --- EDX --- imbibition --- oil shale --- shale --- pore size distribution --- seismic wavefield --- unconventional --- fracturing fluid --- shale gas reservoir --- elastomer seal --- oil production --- leaching --- elemental analysis --- Chang 7 reservoir --- shale reservoirs --- Wufeng-Longmaxi shale --- TGA --- fracturing --- solid-liquid extraction --- fuling gas field --- Niutitang formation --- isolated organic matter --- SEM --- safety levels of activity --- well integrity --- flowback fluid --- osmotic hydration --- anisotropy --- surface hydration --- ionic stabilizer --- quantitative evaluation --- tight oil recovery --- FTIR --- fluid-solid-heat coupling --- liner hanger --- dynamic crack initiation toughness --- Jordan --- numerical simulation --- organic matter pores --- shale drilling fluid --- finite element analysis --- multistage fracturing --- well --- negative extreme swelling ratio --- volume fracturing --- contact pressure --- NSCB specimen

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• Reference Manager
• EndNote
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The need for energy is increasing and at the same time production from the conventional reservoirs is declining quickly. This requires an economically and technically feasible source of energy for the coming years. Among some alternative future energy solutions the most approachable source is from unconventional reservoirs. As the name “unconventional” implies it requires different and challenging approach to characterize and to develop such a resource. This special issue covers some of the technical challenges for developing unconventional energy sources from shale gas/oil, tight gas sand, and coalbed methane.

Research & information: general --- Technology: general issues --- bedding fractures --- failure criterion --- lamina --- tight oil --- tight sandstone --- finite element simulation --- numerical simulation --- unconventional reservoir --- permeability --- group method of data handling --- artificial neural network --- well logs --- sensitivity analysis --- tight gas reservoir --- multi-fractured horizontal well (MFHW) --- unstable productivity model --- productivity forecast --- influencing factor analysis --- horizontal well with multiple finite-conductivity fractures --- elliptical-shaped drainage --- productivity index --- non-Darcy flow --- pressure-dependent conductivity --- reservoir properties --- void space structure --- porosity --- complex rocks --- NMR --- MICP --- CT --- SEM --- coal-bearing tight sandstone --- organic-rich clasts --- occurrence --- classifications --- formation mechanisms --- Ordos Basin --- hydraulic fracturing --- fracturing fluids --- fluids-rock interaction --- environmental implication --- history matching --- semianalytic model --- unconventional gas reservoirs --- multistage fractured horizontal wells --- fractal theory --- pore structure --- heterogeneity --- NMR measurements --- multifractal analysis --- shale reservoir --- elastic properties --- brittleness --- rock physics --- brittle spot identification --- shale gas --- reservoir characteristics --- gas content --- eastern Sichuan Basin --- the Da’anzhai member --- pulse decay method --- gas adsorption --- dual media --- unconventional core --- natural fracture --- influencing factor --- oil production --- carbonate rock --- basement reservoir --- Jizhong Sub-basin --- dynamic pore network modeling --- shale reservoirs --- water imbibition --- discrete element method --- modified fluid-mechanical coupling algorithm --- injection sequence --- well spacing --- stress shadow effect --- seismic location --- microseismic events --- waveform stacking --- induced seismicity --- CBM --- surfactant --- solid-free drilling fluid --- CBM reservoir wettability --- machine learning --- lithofacies --- umiat --- Alaska --- proppant transportation --- cross fractures --- CFD simulation --- dimensional analysis --- equilibrium proppant height --- coalbed methane --- Lattice Boltzmann method --- gas diffusion --- adsorption–desorption --- pore-scale --- clay minerals --- pore structures --- tight gas reservoirs --- Xujiaweizi Rift --- Northern Songliao Basin --- methane adsorption isotherm --- coal properties --- gradient boosting decision tree --- estimation model --- shale gas reservoir --- geology --- Gibbs excess adsorption --- supercritical adsorption --- gas viscosity --- high voltage spark discharge --- electrohydraulic effect --- electrical conductivity --- drilling --- rock damage --- pressure waves --- water fracturing --- turbulence effect --- Eulerian multiphase modeling --- proppant transport mechanism --- equilibrium height prediction model --- adaptive filtering --- complex noise canceling --- electromagnetic telemetry --- multifractured horizontal wells --- production analysis --- irregular stimulated region --- natural gas hydrate --- seismic modeling --- fractional derivatives --- gas geochemical characteristics --- noble gas --- shale gas evolution --- Large Igneous Province (LIP) --- gas loss --- geological structure --- gas controlling pattern --- neutral surface --- tectonic movement --- Bumu region --- seismic interpretation --- depositional environments characteristics --- Wheeler diagram --- seismic attributes --- heterogeneous sequence --- sample size --- neutron scattering --- mercury injection capillary pressure --- adsorption --- shale --- junggar basin --- hong-che fault zone --- carboniferous --- volcanic reservoir --- main controlling factors of hydrocarbon accumulation --- fracture --- vug --- micro CT --- carbonate --- wave velocity --- amorphous SiO2 --- X-ray diffraction --- X-ray fluorescence spectrometry --- scanning electron microscope --- quantitative analysis --- void ratio --- FEM --- ABAQUS --- matrix porosity --- kerogen porosity --- water saturation --- gas hydrate --- saturation --- deep learning --- recurrent neural network --- molecular simulation --- enhanced oil recovery --- methane --- shale petroleum --- technological development --- patent --- network analysis --- imbibition --- osmosis --- unconventional formations --- EOR --- water flooding --- bedding fractures --- failure criterion --- lamina --- tight oil --- tight sandstone --- finite element simulation --- numerical simulation --- unconventional reservoir --- permeability --- group method of data handling --- artificial neural network --- well logs --- sensitivity analysis --- tight gas reservoir --- multi-fractured horizontal well (MFHW) --- unstable productivity model --- productivity forecast --- influencing factor analysis --- horizontal well with multiple finite-conductivity fractures --- elliptical-shaped drainage --- productivity index --- non-Darcy flow --- pressure-dependent conductivity --- reservoir properties --- void space structure --- porosity --- complex rocks --- NMR --- MICP --- CT --- SEM --- coal-bearing tight sandstone --- organic-rich clasts --- occurrence --- classifications --- formation mechanisms --- Ordos Basin --- hydraulic fracturing --- fracturing fluids --- fluids-rock interaction --- environmental implication --- history matching --- semianalytic model --- unconventional gas reservoirs --- multistage fractured horizontal wells --- fractal theory --- pore structure --- heterogeneity --- NMR measurements --- multifractal analysis --- shale reservoir --- elastic properties --- brittleness --- rock physics --- brittle spot identification --- shale gas --- reservoir characteristics --- gas content --- eastern Sichuan Basin --- the Da’anzhai member --- pulse decay method --- gas adsorption --- dual media --- unconventional core --- natural fracture --- influencing factor --- oil production --- carbonate rock --- basement reservoir --- Jizhong Sub-basin --- dynamic pore network modeling --- shale reservoirs --- water imbibition --- discrete element method --- modified fluid-mechanical coupling algorithm --- injection sequence --- well spacing --- stress shadow effect --- seismic location --- microseismic events --- waveform stacking --- induced seismicity --- CBM --- surfactant --- solid-free drilling fluid --- CBM reservoir wettability --- machine learning --- lithofacies --- umiat --- Alaska --- proppant transportation --- cross fractures --- CFD simulation --- dimensional analysis --- equilibrium proppant height --- coalbed methane --- Lattice Boltzmann method --- gas diffusion --- adsorption–desorption --- pore-scale --- clay minerals --- pore structures --- tight gas reservoirs --- Xujiaweizi Rift --- Northern Songliao Basin --- methane adsorption isotherm --- coal properties --- gradient boosting decision tree --- estimation model --- shale gas reservoir --- geology --- Gibbs excess adsorption --- supercritical adsorption --- gas viscosity --- high voltage spark discharge --- electrohydraulic effect --- electrical conductivity --- drilling --- rock damage --- pressure waves --- water fracturing --- turbulence effect --- Eulerian multiphase modeling --- proppant transport mechanism --- equilibrium height prediction model --- adaptive filtering --- complex noise canceling --- electromagnetic telemetry --- multifractured horizontal wells --- production analysis --- irregular stimulated region --- natural gas hydrate --- seismic modeling --- fractional derivatives --- gas geochemical characteristics --- noble gas --- shale gas evolution --- Large Igneous Province (LIP) --- gas loss --- geological structure --- gas controlling pattern --- neutral surface --- tectonic movement --- Bumu region --- seismic interpretation --- depositional environments characteristics --- Wheeler diagram --- seismic attributes --- heterogeneous sequence --- sample size --- neutron scattering --- mercury injection capillary pressure --- adsorption --- shale --- junggar basin --- hong-che fault zone --- carboniferous --- volcanic reservoir --- main controlling factors of hydrocarbon accumulation --- fracture --- vug --- micro CT --- carbonate --- wave velocity --- amorphous SiO2 --- X-ray diffraction --- X-ray fluorescence spectrometry --- scanning electron microscope --- quantitative analysis --- void ratio --- FEM --- ABAQUS --- matrix porosity --- kerogen porosity --- water saturation --- gas hydrate --- saturation --- deep learning --- recurrent neural network --- molecular simulation --- enhanced oil recovery --- methane --- shale petroleum --- technological development --- patent --- network analysis --- imbibition --- osmosis --- unconventional formations --- EOR --- water flooding