Subject Rankings
Africa Engineering & Technology / Petroleum Engineering Subject Rankings 2025
AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Nov 21, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (873.864) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]
* Total H IndexRankings
Ranking Based On Selection
:1
Igneous petrology
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
40
63
6,128
* Total H IndexRankings
Ranking Based On Selection
:2
Petrology
Geochemistry
Hydrogeology
Metrics
H-Index
i10 Index
Citation Counts
35
83
3,496
* Total H IndexRankings
Ranking Based On Selection
:3
polymer Chemistry and Physics
Metrics
H-Index
i10 Index
Citation Counts
31
63
2,911
* Total H IndexRankings
Ranking Based On Selection
:4
Petroleum and Environmental Biotechnology
Biofuels
Nano-Biotechnology
Biovalorization of Wastes
Sustainable Development
Metrics
H-Index
i10 Index
Citation Counts
30
81
3,141
* Total H IndexRankings
Ranking Based On Selection
:5
Nanomaterials
CO2 utilization
Water treatment
Biodiesel
catalysis and materials science
Metrics
H-Index
i10 Index
Citation Counts
29
44
3,380
* Total H IndexRankings
Ranking Based On Selection
:6
Igneous petrology
Ore genesis
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
29
60
2,236
* Total H IndexRankings
Ranking Based On Selection
:7
Study the mineralogy and geochemistry of precious and base metal sulfide mineralizations
the petrology of the host rocks in add
Metrics
H-Index
i10 Index
Citation Counts
28
44
2,401
* Total H IndexRankings
Ranking Based On Selection
:8
Oil and Gas Drilling
Geothermal Well Drilling and Completion
Well production and Optimization
EOR
Metrics
H-Index
i10 Index
Citation Counts
27
41
1,897
* Total H IndexRankings
Ranking Based On Selection
:9
Kimberlite petrology
mantle xenoliths
martian meteorites
LIPs
general igneous petrology
Metrics
H-Index
i10 Index
Citation Counts
27
42
1,975
* Total H IndexRankings
Ranking Based On Selection
:10
Petrology
Geochemistry
NAA Applications
Metrics
H-Index
i10 Index
Citation Counts
27
51
4,105
* Total H IndexRankings
Ranking Based On Selection
:11
Nanomaterials
Photocatalysis and Analytical Chemistry
Metrics
H-Index
i10 Index
Citation Counts
26
41
2,183
* Total H IndexRankings
Ranking Based On Selection
:12
Associate Professor of Environmental Bioremediation
Biofouling and Biocorrosion and their environmental risk management.
Metrics
H-Index
i10 Index
Citation Counts
21
23
1,426
* Total H IndexRankings
Ranking Based On Selection
:13
Petroleum Engineering
Reservoir Engineering
Reservoir Simulation
Metrics
H-Index
i10 Index
Citation Counts
21
41
2,080
* Total H IndexRankings
Ranking Based On Selection
:14
Mineralogy
Petrology
Crystallography
Structural Geology Geochronology
Metrics
H-Index
i10 Index
Citation Counts
21
47
1,609
* Total H IndexRankings
Ranking Based On Selection
:15
Geochemistry
Mineralogy
Petrology
Ore Deposits
Geochronology
Metrics
H-Index
i10 Index
Citation Counts
19
23
746
* Total H IndexRankings
Ranking Based On Selection
:16
Reservoir Parameter Estimation
Well Placement Optimization
Subsurface Flow Modeling
Metrics
H-Index
i10 Index
Citation Counts
19
36
1,050
* Total H IndexRankings
Ranking Based On Selection
:17
corrosion
Energy storage
DFT
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,331
* Total H IndexRankings
Ranking Based On Selection
:18
Geology (Precambrian igneous and metamorphic rocks
Petrology
geochemistry
structural geology
applications of remote sensing
Metrics
H-Index
i10 Index
Citation Counts
18
32
1,302
* Total H IndexRankings
Ranking Based On Selection
:19
Petroleum Geochemistry
Environmental Geochemistry
Exploration Geochemistry
Organic Petrology & Nano Geochemistry.
Metrics
H-Index
i10 Index
Citation Counts
18
30
966
* Total H IndexRankings
Ranking Based On Selection
:20
Drilling
Cementing
Oil Field Chemicals
Environment
Metrics
H-Index
i10 Index
Citation Counts
18
29
1,077
* Total H IndexRankings
Ranking Based On Selection
:21
Petrology
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
18
28
931
* Total H IndexRankings
Ranking Based On Selection
:22
Igneous petrology and geochemistry
impact craters
radioactive dating
Oceanic and planetary basalts
Kaapvaal and Singhbhum cr
Metrics
H-Index
i10 Index
Citation Counts
18
30
1,442
* Total H IndexRankings
Ranking Based On Selection
:23
Petrochemicals
Concrete Admixures
QSPR
Computational chemistry
Metrics
H-Index
i10 Index
Citation Counts
18
26
983
* Total H IndexRankings
Ranking Based On Selection
:24
Petrology
geochemistry
stable isotopes
open science
research data
Metrics
H-Index
i10 Index
Citation Counts
17
17
1,232
* Total H IndexRankings
Ranking Based On Selection
:25
Petroleum
Gas
Chemical
Drilling Fluid
Geomechanics
Metrics
H-Index
i10 Index
Citation Counts
17
39
1,063
Julian Marsh
Rhodes University
Grahamstown, South Africa
Metrics
H-Index
i10-Index
Citation Counts
40
63
6,128
Igneous petrology
Geochemistry
Mekonnen Ashenif
Bahir Dar University
Bahir Dar, Ethiopia
Metrics
H-Index
i10-Index
Citation Counts
35
83
3,496
Petrology
Geochemistry
Hydrogeology
Abdel-Azim A. Abdel-Azim
Metrics
H-Index
i10-Index
Citation Counts
31
63
2,911
polymer Chemistry and Physics
Nour El-Gendy
October University for Modern Sciences and Arts MSA
6 Ekim Şehri, Egypt
Metrics
H-Index
i10-Index
Citation Counts
30
81
3,141
Petroleum and Environmental Biotechnology
Biofuels
Nano-Biotechnology
Biovalorization of Wastes
Sustainable Development
Abdelrahman M. Rabie
Metrics
H-Index
i10-Index
Citation Counts
29
44
3,380
Nanomaterials
CO2 utilization
Water treatment
Biodiesel
catalysis and materials science
Rais Latypov
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
29
60
2,236
Igneous petrology
Ore genesis
Geochemistry
Hassan Mohamed Helmy Hassan
Minia University
Minya, Egypt
Metrics
H-Index
i10-Index
Citation Counts
28
44
2,401
Study the mineralogy and geochemistry of precious and base metal sulfide mineralizations
the petrology of the host rocks in add
Jeffrey Onuoma Oseh
Afe Babalola University
Ado-Ekiti, Nigeria
Metrics
H-Index
i10-Index
Citation Counts
27
41
1,897
Oil and Gas Drilling
Geothermal Well Drilling and Completion
Well production and Optimization
EOR
Geoffrey H. Howarth
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
27
42
1,975
Kimberlite petrology
mantle xenoliths
martian meteorites
LIPs
general igneous petrology
Samuel Boakye Dampare
University of Ghana
Legon, Ghana
Metrics
H-Index
i10-Index
Citation Counts
27
51
4,105
Petrology
Geochemistry
NAA Applications
Amr A. Nada
Metrics
H-Index
i10-Index
Citation Counts
26
41
2,183
Nanomaterials
Photocatalysis and Analytical Chemistry
Nesreen A. Fatthallah
Metrics
H-Index
i10-Index
Citation Counts
21
23
1,426
Associate Professor of Environmental Bioremediation
Biofouling and Biocorrosion and their environmental risk management.
Ahmed El Banbi
Metrics
H-Index
i10-Index
Citation Counts
21
41
2,080
Petroleum Engineering
Reservoir Engineering
Reservoir Simulation
BN Ekwueme
University of Calabar
Calabar, Nigeria
Metrics
H-Index
i10-Index
Citation Counts
21
47
1,609
Mineralogy
Petrology
Crystallography
Structural Geology Geochronology
Geochemistry
Mineralogy
Petrology
Ore Deposits
Geochronology
Saad Abeeb
University of Ilorin
Ilorin, Nigeria
Metrics
H-Index
i10-Index
Citation Counts
19
36
1,050
Reservoir Parameter Estimation
Well Placement Optimization
Subsurface Flow Modeling
Nasser Elbasiony
Zagazig University
Sharqia, Egypt
Metrics
H-Index
i10-Index
Citation Counts
18
21
1,331
corrosion
Energy storage
DFT
Mohamed Sadek
Metrics
H-Index
i10-Index
Citation Counts
18
32
1,302
Geology (Precambrian igneous and metamorphic rocks
Petrology
geochemistry
structural geology
applications of remote sensing
Segun Ajayi Akinyemi
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Metrics
H-Index
i10-Index
Citation Counts
18
30
966
Petroleum Geochemistry
Environmental Geochemistry
Exploration Geochemistry
Organic Petrology & Nano Geochemistry.
Ogbonna Friday Joel
University of Port Harcourt
Port Harcourt, Nigeria
Metrics
H-Index
i10-Index
Citation Counts
18
29
1,077
Drilling
Cementing
Oil Field Chemicals
Environment
Sofia Chistyakova
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
18
28
931
Petrology
Geochemistry
Saumitra Misra
Metrics
H-Index
i10-Index
Citation Counts
18
30
1,442
Igneous petrology and geochemistry
impact craters
radioactive dating
Oceanic and planetary basalts
Kaapvaal and Singhbhum cr
Eam Gad
Metrics
H-Index
i10-Index
Citation Counts
18
26
983
Petrochemicals
Concrete Admixures
QSPR
Computational chemistry
Katie A Smart
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
17
17
1,232
Petrology
geochemistry
stable isotopes
open science
research data
Okoro Emeka Emmanuel
Metrics
H-Index
i10-Index
Citation Counts
17
39
1,063
Petroleum
Gas
Chemical
Drilling Fluid
Geomechanics