The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 03, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.752) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
Rankings
Enhanced Oil Recovery | Flow in Porous Media | Nano and Bio Technologies in Oil and Gas Industrie
H-Index Metrics
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H-Index71
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i10 Index255
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Citation Counts15,524
Rankings
Interfacial phenomena | EOR | Asphaltene | Machine Learning | Nan
H-Index Metrics
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H-Index54
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i10 Index197
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Citation Counts9,306
Rankings
Drilling Engineering | Drilling Fluid | Well Completion | Fluid Flow Through Porous Media | enhanced oi
H-Index Metrics
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H-Index42
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i10 Index123
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Citation Counts7,074
Rankings
Rankings
Rankings
Economic Geology | Mineral Expolration | Fractal | Geostatistic
H-Index Metrics
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H-Index39
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i10 Index131
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Citation Counts5,548
Rankings
Well logging | Formation evaluation | Petrophysics | Petroleum Geology | Carbonate reservoir
H-Index Metrics
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H-Index38
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i10 Index121
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Citation Counts5,198
Rankings
Rankings
Petroleum Geology | Reservoir Characterization | Reservoir Heterogeneity | Reservoir Geology | Petrophysic
H-Index Metrics
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H-Index36
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i10 Index70
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Citation Counts3,062
Rankings
petroleum | environment | advanced oxidation process | wax | asphalten
H-Index Metrics
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H-Index32
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i10 Index71
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Citation Counts2,750
Rankings
EOR | Asphaltene | Inhibitor | Smart Water | Surfactant & Polymer Floodin
H-Index Metrics
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H-Index31
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i10 Index69
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Citation Counts2,496
Rankings
Biomaterials | Polymer Chemistry | Polymerization | Sustainable Development | 3D printin
H-Index Metrics
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H-Index31
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i10 Index60
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Citation Counts2,738
Rankings
Rankings
Hydrogen Storage | Developing multiscale models for SMRs | Multicomponent Flow in Porous Medi
H-Index Metrics
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H-Index29
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i10 Index44
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Citation Counts2,094
Rankings
Rankings
Rankings
Rankings
EOR | Digital Rock Physics | Petrophysics | Formation Damage | Machine Learnin
H-Index Metrics
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H-Index28
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i10 Index40
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Citation Counts1,807
Rankings
Polymer composites/nanocomposites | Surface modification and Functionalization | Structure-property relationshi
H-Index Metrics
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H-Index28
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i10 Index43
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Citation Counts2,801
Rankings
Reservoir Engineering | Drilling Automation and Optimization | Well Test Analysi
H-Index Metrics
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H-Index26
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i10 Index47
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Citation Counts1,806
Rankings
Sedimentary Geology and Geochemistry | Carbonate Rocks | Sequence Stratigraphy | Geologica
H-Index Metrics
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H-Index25
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i10 Index34
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Citation Counts1,948
Rankings
Nanomaterials | Medical engineering | Bioengineering | Biomaterial
H-Index Metrics
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H-Index25
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i10 Index51
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Citation Counts1,753
Rankings
Applied Thermodynamics | Natural Gas Treatment | Ionic Liquid
H-Index Metrics
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H-Index26
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i10 Index36
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Citation Counts2,830
Rankings
Enhanced Oil Recovery | Reservoir Engineering | Artificial Intelligence | Data Mining | Optimizatio
H-Index Metrics
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H-Index25
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i10 Index45
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Citation Counts1,604
Rankings
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