World Scientist and University Rankings 2025
Engineering & Technology / Petroleum Engineering 2.274 Scientists Subject Rankings - 2025
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 6 years. As of Jun 19, 2025, 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 (0) 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].
* Total H Index Rankings
Rankings
4,637
World Rank
163
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Petroleum Engineering
Geochronology | Geochemistry | Petrology | Chemical geodynamic
Geochronology | Geochemistry | Petrology | Chemical geodynamic
H-Index Metrics
-
H-Index121
-
i10 Index331
-
Citation Counts57,440
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* Total H Index Rankings
Rankings
4,648
World Rank
42
Country Rank
9
University
Ranking Based On Selection:
2
* Total H Index Rankings
Rankings
9,129
World Rank
800
Country Rank
118
University
Ranking Based On Selection:
3
Engineering & Technology / Petroleum Engineering
element partitioning | planetary accretion | volcanic gases | experimental petrolog
element partitioning | planetary accretion | volcanic gases | experimental petrolog
H-Index Metrics
-
H-Index102
-
i10 Index246
-
Citation Counts32,091
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* Total H Index Rankings
Rankings
9,777
World Rank
4,390
Country Rank
32
University
Ranking Based On Selection:
4
Engineering & Technology / Petroleum Engineering
petroleum engineering | hydraulic fracturing | formation damage | water injection | production engineerin
petroleum engineering | hydraulic fracturing | formation damage | water injection | production engineerin
H-Index Metrics
-
H-Index100
-
i10 Index614
-
Citation Counts39,816
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* Total H Index Rankings
Rankings
10,947
World Rank
4,876
Country Rank
4
University
Ranking Based On Selection:
5
Engineering & Technology / Petroleum Engineering
mineralogy | astrobiology | astrochemistry | petrolog
mineralogy | astrobiology | astrochemistry | petrolog
H-Index Metrics
-
H-Index97
-
i10 Index349
-
Citation Counts34,324
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* Total H Index Rankings
Rankings
12,348
World Rank
5,494
Country Rank
125
University
Ranking Based On Selection:
6
Engineering & Technology / Petroleum Engineering
Igneous petrology | Experimental Petrology | Geochemistry | Mineralog
Igneous petrology | Experimental Petrology | Geochemistry | Mineralog
H-Index Metrics
-
H-Index94
-
i10 Index218
-
Citation Counts32,366
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* Total H Index Rankings
Rankings
12,583
World Rank
550
Country Rank
4
University
Ranking Based On Selection:
7
Engineering & Technology / Petroleum Engineering
Igneous petrology/geochemistry | Lithospheric mantle | Large igneous provinces | Big mantle Wedge | Earth's habitabilit
Igneous petrology/geochemistry | Lithospheric mantle | Large igneous provinces | Big mantle Wedge | Earth's habitabilit
H-Index Metrics
-
H-Index93
-
i10 Index318
-
Citation Counts31,858
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* Total H Index Rankings
Rankings
12,662
World Rank
622
Country Rank
10
University
Ranking Based On Selection:
8
Engineering & Technology / Petroleum Engineering
Geochronology | Isotope Geochemistry | LA-ICP-MS | Laser ablation ICP-MS | Petrolog
Geochronology | Isotope Geochemistry | LA-ICP-MS | Laser ablation ICP-MS | Petrolog
H-Index Metrics
-
H-Index93
-
i10 Index387
-
Citation Counts33,608
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* Total H Index Rankings
Rankings
14,301
World Rank
586
Country Rank
38
University
Ranking Based On Selection:
9
Engineering & Technology / Petroleum Engineering
Geochemistry | igneous petrology | platinum group element geochemistry | Re-Os isotopes | Molecula
Geochemistry | igneous petrology | platinum group element geochemistry | Re-Os isotopes | Molecula
H-Index Metrics
-
H-Index90
-
i10 Index354
-
Citation Counts29,442
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* Total H Index Rankings
Rankings
15,026
World Rank
6,626
Country Rank
64
University
Ranking Based On Selection:
10
Engineering & Technology / Petroleum Engineering
petroleum engineering | reservoir engineering | enhanced oil recovery | reservoir simulatio
petroleum engineering | reservoir engineering | enhanced oil recovery | reservoir simulatio
H-Index Metrics
-
H-Index89
-
i10 Index372
-
Citation Counts29,131
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* Total H Index Rankings
Rankings
16,771
World Rank
7,349
Country Rank
14
University
Ranking Based On Selection:
11
Engineering & Technology / Petroleum Engineering
coal petrology | fly ash petrology | coal geochemistry | coal maceral origin
coal petrology | fly ash petrology | coal geochemistry | coal maceral origin
H-Index Metrics
-
H-Index86
-
i10 Index434
-
Citation Counts27,445
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* Total H Index Rankings
Rankings
17,521
World Rank
7,659
Country Rank
76
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
19,501
World Rank
901
Country Rank
9
University
Ranking Based On Selection:
13
Engineering & Technology / Petroleum Engineering
Switched systems | Fuzzy systems | Markovian jump systems | Delay systems | Robust contro
Switched systems | Fuzzy systems | Markovian jump systems | Delay systems | Robust contro
H-Index Metrics
-
H-Index82
-
i10 Index365
-
Citation Counts24,591
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* Total H Index Rankings
Rankings
21,755
World Rank
1,027
Country Rank
22
University
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
23,718
World Rank
10,124
Country Rank
103
University
Ranking Based On Selection:
15
Engineering & Technology / Petroleum Engineering
reservoir engineering | enhanced oil recovery | petroleum engineerin
reservoir engineering | enhanced oil recovery | petroleum engineerin
H-Index Metrics
-
H-Index78
-
i10 Index272
-
Citation Counts26,808
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* Total H Index Rankings
Rankings
24,316
World Rank
1,175
Country Rank
39
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
24,448
World Rank
10,401
Country Rank
27
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
24,555
World Rank
1,188
Country Rank
34
University
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
25,126
World Rank
1,196
Country Rank
1
University
Ranking Based On Selection:
19
* Total H Index Rankings
Rankings
26,020
World Rank
1,128
Country Rank
56
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
26,243
World Rank
1,269
Country Rank
2
University
Ranking Based On Selection:
21
Engineering & Technology / Petroleum Engineering
heat transfer | solar energy | optical properties | building | cf
heat transfer | solar energy | optical properties | building | cf
H-Index Metrics
-
H-Index75
-
i10 Index450
-
Citation Counts23,776
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* Total H Index Rankings
Rankings
27,384
World Rank
1,310
Country Rank
5
University
Ranking Based On Selection:
22
* Total H Index Rankings
Rankings
30,073
World Rank
1,450
Country Rank
2
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
32,254
World Rank
1,423
Country Rank
104
University
Ranking Based On Selection:
24
Engineering & Technology / Petroleum Engineering
heavy oil | interfacial science | chemical reactors | biochemical reactor
heavy oil | interfacial science | chemical reactors | biochemical reactor
H-Index Metrics
-
H-Index71
-
i10 Index251
-
Citation Counts16,124
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* Total H Index Rankings
Rankings
33,158
World Rank
13,707
Country Rank
149
University
Ranking Based On Selection:
25
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