Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Petroleum Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,718
12,139
0.885
* Total Citation Counts Rankings
Ranking Based On Selection :2
Artificial Intelligence in Petroleum Engineering
Drilling Engineering
Cementing
Drilling Fluids
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,167
8,563
0.934
* Total Citation Counts Rankings
Ranking Based On Selection :3
Modeling
Machine Learning
Artificial intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,411
7,171
0.853
* Total Citation Counts Rankings
Ranking Based On Selection :4
Reactive and Complex fluids
Molecular Simulation
EOR
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,785
5,888
0.868
* Total Citation Counts Rankings
Ranking Based On Selection :5
petroleum engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,712
2,750
0.410
* Total Citation Counts Rankings
Ranking Based On Selection :6
Organic-Inorganic Polymeric Nanocomposite
Water Treatment
Water Purification
Oil-Water Separation
Sensor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,374
3,609
0.825
* Total Citation Counts Rankings
Ranking Based On Selection :7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,308
3,323
0.771
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,888
2,713
0.698
* Total Citation Counts Rankings
Ranking Based On Selection :9
HydroGeophysics
Near Surface Geophysics
Engineering Geophysics
Environmental Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,809
2,149
0.564
* Total Citation Counts Rankings
Ranking Based On Selection :10
Smart Structures
Piezoelectric Actuators
MEMS Sensors
Guided Waves
Vibration and Acoustics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,287
538
0.164
* Total Citation Counts Rankings
Ranking Based On Selection :11
Energy Sustainability
Heat transfer
Net- Zero Energy System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,137
3,040
0.969
* Total Citation Counts Rankings
Ranking Based On Selection :12
Urban Sustainability and Planning
Smart and sustainable cities
Campus and University Sustainability Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,974
1,781
0.599
* Total Citation Counts Rankings
Ranking Based On Selection :13
Igneous Petrology
Tectonics
Cosmochemistry
Planetary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,965
2,103
0.709
* Total Citation Counts Rankings
Ranking Based On Selection :14
Petroleum Engineering
Drilling Engineering
Drilling Fluids
oil and Gas Well Cementing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,948
2,070
0.702
* Total Citation Counts Rankings
Ranking Based On Selection :15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,822
1,917
0.679
* Total Citation Counts Rankings
Ranking Based On Selection :16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,119
1,603
0.756
* Total Citation Counts Rankings
Ranking Based On Selection :17
Water flooding
CEOR
CO2EOR and storage
Wettability and reservoir Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,056
1,256
0.611
* Total Citation Counts Rankings
Ranking Based On Selection :18
Computational Multiphysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,943
541
0.278
* Total Citation Counts Rankings
Ranking Based On Selection :19
Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,772
594
0.335
* Total Citation Counts Rankings
Ranking Based On Selection :20
Drilling Engineering
Well Cementing
Artificial intelligence in Petroleum Eng.
Well Completion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,640
1,612
0.983
* Total Citation Counts Rankings
Ranking Based On Selection :21
Relay cooperative networks
Optical communications
Reconfigurable intelligent surfaces
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,625
1,388
0.854
* Total Citation Counts Rankings
Ranking Based On Selection :22
Petroleum Engineering
fluid flow in porous media
Petrophysics
Foam transport in porous media
CO2 geosequestration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,571
1,275
0.812
* Total Citation Counts Rankings
Ranking Based On Selection :23
GIS and Urban Remote Sensing
Natural Hazards
Urban Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,433
1,312
0.916
* Total Citation Counts Rankings
Ranking Based On Selection :24
Hydrocarbon Resources
PVT
EOR
Adsorption
AI and Simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,342
1,335
0.995
* Total Citation Counts Rankings
Ranking Based On Selection :25
Persistent Luminescence
Upconversion
Phosphors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,333
1,171
0.878
Mohamed A Mahmoud
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,718
12,139
0.885
Petroleum Engineering
Salaheldin Elkatatny
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,167
8,563
0.934
Artificial Intelligence in Petroleum Engineering
Drilling Engineering
Cementing
Drilling Fluids
Babatunde Mustapha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,411
7,171
0.853
Modeling
Machine Learning
Artificial intelligence
Abdullah Sultan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,785
5,888
0.868
Reactive and Complex fluids
Molecular Simulation
EOR
Ruud Weijermars
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,712
2,750
0.410
petroleum engineering
Umair Baig
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,374
3,609
0.825
Organic-Inorganic Polymeric Nanocomposite
Water Treatment
Water Purification
Oil-Water Separation
Sensor
Khalid R Alhooshani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,308
3,323
0.771
Fahhad H Alharbi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,888
2,713
0.698
Pantelis Soupios
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,809
2,149
0.564
HydroGeophysics
Near Surface Geophysics
Engineering Geophysics
Environmental Geophysics
Muhammad A Hawwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,287
538
0.164
Smart Structures
Piezoelectric Actuators
MEMS Sensors
Guided Waves
Vibration and Acoustics
Kashif Irshad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,137
3,040
0.969
Energy Sustainability
Heat transfer
Net- Zero Energy System
Habib Alshuwaikhat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,974
1,781
0.599
Urban Sustainability and Planning
Smart and sustainable cities
Campus and University Sustainability Assessment
Scott A Whattam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,965
2,103
0.709
Igneous Petrology
Tectonics
Cosmochemistry
Planetary Science
Abdulaziz Al Majed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,948
2,070
0.702
Petroleum Engineering
Drilling Engineering
Drilling Fluids
oil and Gas Well Cementing
Mohammad Mizanur Rahman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,822
1,917
0.679
Sidqi Abu Khamsin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,119
1,603
0.756
Xianmin Zhou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,056
1,256
0.611
Water flooding
CEOR
CO2EOR and storage
Wettability and reservoir Engineering
Shahzada Zaman Shuja
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,943
541
0.278
Computational Multiphysics
Hassan Al Muallem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,772
594
0.335
Ahmed Abdulhamid Mahmoud
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,640
1,612
0.983
Drilling Engineering
Well Cementing
Artificial intelligence in Petroleum Eng.
Well Completion
Anas M Salhab
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,625
1,388
0.854
Relay cooperative networks
Optical communications
Reconfigurable intelligent surfaces
Abdulrauf Adebayo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,571
1,275
0.812
Petroleum Engineering
fluid flow in porous media
Petrophysics
Foam transport in porous media
CO2 geosequestration
Muhammad Tauhidur Rahman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,433
1,312
0.916
GIS and Urban Remote Sensing
Natural Hazards
Urban Modelling
Shams Kalam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,342
1,335
0.995
Hydrocarbon Resources
PVT
EOR
Adsorption
AI and Simulation
Yafei Chen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,333
1,171
0.878
Persistent Luminescence
Upconversion
Phosphors