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Book
Gas Hydrate: Environmental and Climate Impacts
Authors: --- --- ---
ISBN: 303921845X 3039218441 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue reports research spanning from the analysis of indirect data, modeling, and laboratory and geological data confirming the intrinsic multidisciplinarity of gas hydrate studies. The study areas are (1) Arctic, (2) Brazil, (3) Chile, and (4) the Mediterranean region. The results furnished an important tessera of the knowledge about the relationship of a gas hydrate system with other complex natural phenomena such as climate change, slope stability and earthquakes, and human activities.


Book
Mineralogy of Noble Metals and “Invisible” Speciations of These Elements in Natural Systems
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ISBN: 3039286358 303928634X Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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This Special Issue covers a broad range of topics related to the mineralogy of noble metals (Au, Ag, Pt, Pd, Rh, and Ru) and the occurrence, formation, and distribution of these elements in natural ore-forming systems. This collection of eleven research articles discusses various problems related to these topics. I hope this Special Issue will contribute to a better understanding of the genesis of gold, silver, and other noble metal deposits as well as the behavior of these elements in endogenic and supergene environments, and suggest ways forward to solving the problem of their full extraction from ores.

Keywords

Southeast Guizhou --- n/a --- Nibao gold deposit --- arsenopyrite --- gold selenide --- mineralization age --- thermodynamic modeling --- S)-oxides --- Cu-Fe-Ni-S system --- chlorargyrite --- colloids --- Fe-Sb(Te --- pyrite --- mustard gold --- Mössbauer Effect --- platinum --- gold mineralization --- nanoparticles --- magnetite veins --- dyscrasite --- chloride complexes --- calaverite --- metalloid elements --- maletoyvayamite --- gold ore deposits --- ligand surroundings --- platinum-group elements --- fractional crystallization --- fluid regime --- native gold --- Southern Urals --- monolithic and porous gold --- Rb–Sr isotopic composition --- Gaching ore deposit --- antigorite serpentinites --- Fennoscandian Shield --- zircon U–Pb age --- Ag --- karst cavities --- gold sulfoselenide --- Yunnan–Guizhou–Guangxi “Golden Triangle” region --- As)-oxides --- distribution --- sulfide minerals --- Tl tellurates and antimonates --- gold ore field --- valleriite --- gold --- Tl oxides (avicennite) --- nucleation --- drop-shaped inclusions --- As --- structural and surficial modes --- Kolmozero–Voronya belt --- gold source --- S --- Au --- non-equal positions --- ore genesis --- XPS --- liquid intermediates --- crystal lattice --- Chaoyangzhai gold deposit --- Au-Sb(Te --- Kagan ultramafic massif --- deposition --- invisible species --- noble metals --- in situ sulfur isotopes --- Se --- “invisible” gold --- Oleninskoe deposit --- ore-forming fluid --- Tl carbonates


Book
Use of Water Stable Isotopes in Hydrological Process
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Stable and radioactive isotopes in water are powerful tools in the tracking of the path of water molecules through the whole water cycle. In the last decade, a considerable number of studies have been published on the use of water isotopes, and their number is ever-growing. The main reason is the development of new measurement techniques (i.e., laser absorption spectroscopy) that allow measurements of stable isotope ratios at ever-higher resolutions. Therefore, this compilation of papers has been published to address the current state-of-the-art water isotope methods, applications, and interpretations of hydrological processes, and to contribute to the rapidly growing repository of isotope data, which is important for future water resource management. We are pleased to present here a book with new findings in thirteen original research papers and one review paper issued in the Water MDPI Special Issue (SI) “Use of Water Isotopes in Hydrological Processes”. The authors report the use of water isotopes in hydrological processes worldwide, including studies at both local and regional scales related to either precipitation dynamics or to different applications of water isotopes in combination with other hydrochemical parameters in investigations of surface water, snowmelt, soil water, groundwater and xylem water to identify the hydrological and geochemical processes.

Keywords

Research & information: general --- precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation --- precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation


Book
Fundamentals of Enhanced Oil Recovery
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

For many years, the trend of increasing energy demand has been visible. Despite the search for alternative energy sources, it is estimated that oil and natural gas will be the main source of energy in transport for the next several dozen years. However, the reserves of renewable raw materials are limited in volume. Along with the degree of depletion, oil recovery becomes more and more difficult, even though the deposits are not yet completely empty. Therefore, it is essential to find new methods to increase oil and gas recovery. Actions aimed at intensifying oil recovery are very rational use of energy that has not yet been fully used. Usually, an increase in oil recovery can be achieved by using extraction intensification methods. However, measures to increase oil recovery can be implemented and carried out at any stage of the borehole implementation. Starting from the well design stage, through drilling and ending with the exploitation of oil and gas. Therefore, in order to further disseminate technologies and methods related to increasing oil recovery, a special edition has been developed, entitled "Fundamentals of Enhanced Oil Recovery". This Special Issue mainly covers original research and studies on the above-mentioned topics, including, but not limited to, improving the efficiency of oil recovery, improving the correct selection of drilling fluids, secondary methods of intensifying production and appropriate energy management in the oil industry.

Keywords

Technology: general issues --- History of engineering & technology --- gas migration --- well cementing --- cement slurry --- cement sheath --- corrosion resistance --- gas outflows --- oil-based mud --- invert drilling fluid --- water phase --- oil phase --- emulsion stability --- emulsifier --- drilling mud --- oxidants --- enzymes --- filter cake --- improving the sealing of the borehole --- rational selection of drilling fluids --- cleaning the borehole --- adhesion --- spacer fluid --- CO2 and H2S geological sequestration --- acid gas reinjection --- acid gas migration --- bottomhole sampling --- isotopic composition --- gas and water chemical analysis --- soil gas analysis --- leakage risk analysis --- improved borehole sealing --- nanosilica --- cement stone --- mechanical parameters --- drilling fluids --- wash --- mud cake --- annular space --- borehole cleaning --- cementing --- wash contact time --- high temperature on corrosion of mining pipes --- water --- aggressive natural gas components --- L80-1 steel --- water shut-off treatment --- gas production --- water-gas ratio (WGR) --- formation permeability --- well logging data quality and quantity interpretation --- gas well ranking --- water flooding --- pore scale --- enhanced oil recovery --- viscosity --- capillarity --- jet pump --- oil --- well --- sucker-rod pump --- gas-water-oil mixture --- chrome coating --- unconventional resources --- shale gas --- oil gas --- total organic carbon (TOC) --- cluster analysis --- genetic type of kerogen --- WAG --- carbonate reservoir --- CO2 --- acid gas --- high-nitrogen natural gas --- water alternating gas --- EOR --- recovery factor --- genetic programming --- fine-grained material --- borehole sealing efficiency --- technological parameters --- gas migration --- well cementing --- cement slurry --- cement sheath --- corrosion resistance --- gas outflows --- oil-based mud --- invert drilling fluid --- water phase --- oil phase --- emulsion stability --- emulsifier --- drilling mud --- oxidants --- enzymes --- filter cake --- improving the sealing of the borehole --- rational selection of drilling fluids --- cleaning the borehole --- adhesion --- spacer fluid --- CO2 and H2S geological sequestration --- acid gas reinjection --- acid gas migration --- bottomhole sampling --- isotopic composition --- gas and water chemical analysis --- soil gas analysis --- leakage risk analysis --- improved borehole sealing --- nanosilica --- cement stone --- mechanical parameters --- drilling fluids --- wash --- mud cake --- annular space --- borehole cleaning --- cementing --- wash contact time --- high temperature on corrosion of mining pipes --- water --- aggressive natural gas components --- L80-1 steel --- water shut-off treatment --- gas production --- water-gas ratio (WGR) --- formation permeability --- well logging data quality and quantity interpretation --- gas well ranking --- water flooding --- pore scale --- enhanced oil recovery --- viscosity --- capillarity --- jet pump --- oil --- well --- sucker-rod pump --- gas-water-oil mixture --- chrome coating --- unconventional resources --- shale gas --- oil gas --- total organic carbon (TOC) --- cluster analysis --- genetic type of kerogen --- WAG --- carbonate reservoir --- CO2 --- acid gas --- high-nitrogen natural gas --- water alternating gas --- EOR --- recovery factor --- genetic programming --- fine-grained material --- borehole sealing efficiency --- technological parameters


Book
Use of Water Stable Isotopes in Hydrological Process
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Export citation

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Bookmark

Abstract

Stable and radioactive isotopes in water are powerful tools in the tracking of the path of water molecules through the whole water cycle. In the last decade, a considerable number of studies have been published on the use of water isotopes, and their number is ever-growing. The main reason is the development of new measurement techniques (i.e., laser absorption spectroscopy) that allow measurements of stable isotope ratios at ever-higher resolutions. Therefore, this compilation of papers has been published to address the current state-of-the-art water isotope methods, applications, and interpretations of hydrological processes, and to contribute to the rapidly growing repository of isotope data, which is important for future water resource management. We are pleased to present here a book with new findings in thirteen original research papers and one review paper issued in the Water MDPI Special Issue (SI) “Use of Water Isotopes in Hydrological Processes”. The authors report the use of water isotopes in hydrological processes worldwide, including studies at both local and regional scales related to either precipitation dynamics or to different applications of water isotopes in combination with other hydrochemical parameters in investigations of surface water, snowmelt, soil water, groundwater and xylem water to identify the hydrological and geochemical processes.

Keywords

Research & information: general --- precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation


Book
Fundamentals of Enhanced Oil Recovery
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Bookmark

Abstract

For many years, the trend of increasing energy demand has been visible. Despite the search for alternative energy sources, it is estimated that oil and natural gas will be the main source of energy in transport for the next several dozen years. However, the reserves of renewable raw materials are limited in volume. Along with the degree of depletion, oil recovery becomes more and more difficult, even though the deposits are not yet completely empty. Therefore, it is essential to find new methods to increase oil and gas recovery. Actions aimed at intensifying oil recovery are very rational use of energy that has not yet been fully used. Usually, an increase in oil recovery can be achieved by using extraction intensification methods. However, measures to increase oil recovery can be implemented and carried out at any stage of the borehole implementation. Starting from the well design stage, through drilling and ending with the exploitation of oil and gas. Therefore, in order to further disseminate technologies and methods related to increasing oil recovery, a special edition has been developed, entitled "Fundamentals of Enhanced Oil Recovery". This Special Issue mainly covers original research and studies on the above-mentioned topics, including, but not limited to, improving the efficiency of oil recovery, improving the correct selection of drilling fluids, secondary methods of intensifying production and appropriate energy management in the oil industry.

Keywords

Technology: general issues --- History of engineering & technology --- gas migration --- well cementing --- cement slurry --- cement sheath --- corrosion resistance --- gas outflows --- oil-based mud --- invert drilling fluid --- water phase --- oil phase --- emulsion stability --- emulsifier --- drilling mud --- oxidants --- enzymes --- filter cake --- improving the sealing of the borehole --- rational selection of drilling fluids --- cleaning the borehole --- adhesion --- spacer fluid --- CO2 and H2S geological sequestration --- acid gas reinjection --- acid gas migration --- bottomhole sampling --- isotopic composition --- gas and water chemical analysis --- soil gas analysis --- leakage risk analysis --- improved borehole sealing --- nanosilica --- cement stone --- mechanical parameters --- drilling fluids --- wash --- mud cake --- annular space --- borehole cleaning --- cementing --- wash contact time --- high temperature on corrosion of mining pipes --- water --- aggressive natural gas components --- L80-1 steel --- water shut-off treatment --- gas production --- water-gas ratio (WGR) --- formation permeability --- well logging data quality and quantity interpretation --- gas well ranking --- water flooding --- pore scale --- enhanced oil recovery --- viscosity --- capillarity --- jet pump --- oil --- well --- sucker-rod pump --- gas-water-oil mixture --- chrome coating --- unconventional resources --- shale gas --- oil gas --- total organic carbon (TOC) --- cluster analysis --- genetic type of kerogen --- WAG --- carbonate reservoir --- CO2 --- acid gas --- high-nitrogen natural gas --- water alternating gas --- EOR --- recovery factor --- genetic programming --- fine-grained material --- borehole sealing efficiency --- technological parameters --- n/a


Book
Fundamentals of Enhanced Oil Recovery
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

For many years, the trend of increasing energy demand has been visible. Despite the search for alternative energy sources, it is estimated that oil and natural gas will be the main source of energy in transport for the next several dozen years. However, the reserves of renewable raw materials are limited in volume. Along with the degree of depletion, oil recovery becomes more and more difficult, even though the deposits are not yet completely empty. Therefore, it is essential to find new methods to increase oil and gas recovery. Actions aimed at intensifying oil recovery are very rational use of energy that has not yet been fully used. Usually, an increase in oil recovery can be achieved by using extraction intensification methods. However, measures to increase oil recovery can be implemented and carried out at any stage of the borehole implementation. Starting from the well design stage, through drilling and ending with the exploitation of oil and gas. Therefore, in order to further disseminate technologies and methods related to increasing oil recovery, a special edition has been developed, entitled "Fundamentals of Enhanced Oil Recovery". This Special Issue mainly covers original research and studies on the above-mentioned topics, including, but not limited to, improving the efficiency of oil recovery, improving the correct selection of drilling fluids, secondary methods of intensifying production and appropriate energy management in the oil industry.

Keywords

gas migration --- well cementing --- cement slurry --- cement sheath --- corrosion resistance --- gas outflows --- oil-based mud --- invert drilling fluid --- water phase --- oil phase --- emulsion stability --- emulsifier --- drilling mud --- oxidants --- enzymes --- filter cake --- improving the sealing of the borehole --- rational selection of drilling fluids --- cleaning the borehole --- adhesion --- spacer fluid --- CO2 and H2S geological sequestration --- acid gas reinjection --- acid gas migration --- bottomhole sampling --- isotopic composition --- gas and water chemical analysis --- soil gas analysis --- leakage risk analysis --- improved borehole sealing --- nanosilica --- cement stone --- mechanical parameters --- drilling fluids --- wash --- mud cake --- annular space --- borehole cleaning --- cementing --- wash contact time --- high temperature on corrosion of mining pipes --- water --- aggressive natural gas components --- L80-1 steel --- water shut-off treatment --- gas production --- water-gas ratio (WGR) --- formation permeability --- well logging data quality and quantity interpretation --- gas well ranking --- water flooding --- pore scale --- enhanced oil recovery --- viscosity --- capillarity --- jet pump --- oil --- well --- sucker-rod pump --- gas-water-oil mixture --- chrome coating --- unconventional resources --- shale gas --- oil gas --- total organic carbon (TOC) --- cluster analysis --- genetic type of kerogen --- WAG --- carbonate reservoir --- CO2 --- acid gas --- high-nitrogen natural gas --- water alternating gas --- EOR --- recovery factor --- genetic programming --- fine-grained material --- borehole sealing efficiency --- technological parameters --- n/a


Book
Use of Water Stable Isotopes in Hydrological Process
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

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Bookmark

Abstract

Stable and radioactive isotopes in water are powerful tools in the tracking of the path of water molecules through the whole water cycle. In the last decade, a considerable number of studies have been published on the use of water isotopes, and their number is ever-growing. The main reason is the development of new measurement techniques (i.e., laser absorption spectroscopy) that allow measurements of stable isotope ratios at ever-higher resolutions. Therefore, this compilation of papers has been published to address the current state-of-the-art water isotope methods, applications, and interpretations of hydrological processes, and to contribute to the rapidly growing repository of isotope data, which is important for future water resource management. We are pleased to present here a book with new findings in thirteen original research papers and one review paper issued in the Water MDPI Special Issue (SI) “Use of Water Isotopes in Hydrological Processes”. The authors report the use of water isotopes in hydrological processes worldwide, including studies at both local and regional scales related to either precipitation dynamics or to different applications of water isotopes in combination with other hydrochemical parameters in investigations of surface water, snowmelt, soil water, groundwater and xylem water to identify the hydrological and geochemical processes.

Keywords

precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation

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