The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the 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 :26
Petroleum engineering
oilfield chemistry
surface science
mineral scale
reservoir engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,227
5,610
0.326
* Total Citation Counts Rankings
Ranking Based On Selection :27
Petroleum and Environmental Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,133
4,395
0.257
* Total Citation Counts Rankings
Ranking Based On Selection :28
Ion beam synthesis of materials
Radiation damage
Carbon nanostructures
Plasmonics
Materials for energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,969
6,105
0.360
* Total Citation Counts Rankings
Ranking Based On Selection :29
Petroleum Microbiology
Sulfate-reducing bacteria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,789
4,469
0.266
* Total Citation Counts Rankings
Ranking Based On Selection :30
petroleum engineering
clean energy
carbon sequestration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,192
4,625
0.286
* Total Citation Counts Rankings
Ranking Based On Selection :31
Petrology
Geochemistry
Earth Sciences
Mineralogy
Geology.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,103
5,215
0.324
* Total Citation Counts Rankings
Ranking Based On Selection :32
Petroleum
Solar
Education Research
Production
Turbo Machine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,944
12,102
0.759
* Total Citation Counts Rankings
Ranking Based On Selection :33
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,868
7,633
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :34
pétrole et gaz
reservoir engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,771
6,882
0.436
* Total Citation Counts Rankings
Ranking Based On Selection :35
heavy oil
interfacial science
chemical reactors
biochemical reactors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,736
5,251
0.334
* Total Citation Counts Rankings
Ranking Based On Selection :36
Petrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,581
7,474
0.480
* Total Citation Counts Rankings
Ranking Based On Selection :37
petroleum engineering
chemical engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,273
8,095
0.530
* Total Citation Counts Rankings
Ranking Based On Selection :38
Nanotechnology applications for E&P
Enhanced oil recovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,043
6,231
0.414
* Total Citation Counts Rankings
Ranking Based On Selection :39
petrophysics
rock physics
geomechanics
seismics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,916
7,160
0.480
* Total Citation Counts Rankings
Ranking Based On Selection :40
petroleum engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,810
10,738
0.725
* Total Citation Counts Rankings
Ranking Based On Selection :41
Energy and materials
Oil and gas utilization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,705
11,848
0.806
* Total Citation Counts Rankings
Ranking Based On Selection :42
Reservoir dynamics & simulation
coupled processes of fluid/heat/geomechanics in reservoirs
fractured reservoirs
CO2-EOR
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,347
6,193
0.432
* Total Citation Counts Rankings
Ranking Based On Selection :43
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,307
6,425
0.449
* Total Citation Counts Rankings
Ranking Based On Selection :44
Petrology
Tectonics
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,278
6,885
0.482
* Total Citation Counts Rankings
Ranking Based On Selection :45
Petroleum Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,164
12,579
0.888
* Total Citation Counts Rankings
Ranking Based On Selection :46
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,075
9,295
0.660
* Total Citation Counts Rankings
Ranking Based On Selection :47
petroleum engineering
hydraulic fracturing
geomechanics
unconventional reservoirs
induced seismicity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,050
6,938
0.494
* Total Citation Counts Rankings
Ranking Based On Selection :48
Planetary Science
Meteoritics
Cosmochemistry
Geochemistry
Petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,783
3,580
0.260
* Total Citation Counts Rankings
Ranking Based On Selection :49
Petroleum Generation
Precambrian Research
Biomarker Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,753
7,053
0.513
* Total Citation Counts Rankings
Ranking Based On Selection :50
PETROLEO
QUIMICA
EDUCACIÓN
ARTE
CIENCIA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,428
2,735
0.204
KS Sorbie
Heriot-Watt University
Edinburgh, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,227
5,610
0.326
Petroleum engineering
oilfield chemistry
surface science
mineral scale
reservoir engineering
Tomilayo Ruth Bukola
University of Ilorin
Ilorin, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,133
4,395
0.257
Petroleum and Environmental Microbiology
Devesh Kumar Avasthi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,969
6,105
0.360
Ion beam synthesis of materials
Radiation damage
Carbon nanostructures
Plasmonics
Materials for energy
Gerrit Voordouw
University of Calgary
Calgary, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,789
4,469
0.266
Petroleum Microbiology
Sulfate-reducing bacteria
Franklin Orr
Stanford University
Stanford, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,192
4,625
0.286
petroleum engineering
clean energy
carbon sequestration
Alexander V Sobolev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,103
5,215
0.324
Petrology
Geochemistry
Earth Sciences
Mineralogy
Geology.
Ajit Kumar N Shukla
RK University
Rajkot, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,944
12,102
0.759
Petroleum
Solar
Education Research
Production
Turbo Machine
Cuixia Chen
China University of Petroleum
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,868
7,633
0.481
Sidrouhou Hadj Mohammed
Université Kasdi Merbah Ouargla
Ouargla, Algeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,771
6,882
0.436
pétrole et gaz
reservoir engineering
Murray Gray
University of Alberta
Edmonton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,736
5,251
0.334
heavy oil
interfacial science
chemical reactors
biochemical reactors
Bernhard Krooss
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,581
7,474
0.480
Kishore Mohanty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,273
8,095
0.530
petroleum engineering
chemical engineering
Chun Huh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,043
6,231
0.414
Nanotechnology applications for E&P
Enhanced oil recovery
Carl Sondergeld
University of Oklahoma
Norman, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,916
7,160
0.480
petrophysics
rock physics
geomechanics
seismics
Ben Li
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,810
10,738
0.725
petroleum engineering
Ying Zhou
Southwest Petroleum University
Nanchong, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,705
11,848
0.806
Energy and materials
Oil and gas utilization
Yu Shu Wu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,347
6,193
0.432
Reservoir dynamics & simulation
coupled processes of fluid/heat/geomechanics in reservoirs
fractured reservoirs
CO2-EOR
victor rudolph
University of Queensland
St Lucia, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,307
6,425
0.449
Othmar Müntener
Université de Lausanne
Lausanne, Switzerland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,278
6,885
0.482
Petrology
Tectonics
Geochemistry
Mohamed A Mahmoud
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,164
12,579
0.888
Petroleum Engineering
Hui Zhang
Southwest Petroleum University
Nanchong, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,075
9,295
0.660
Jon E Olson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,050
6,938
0.494
petroleum engineering
hydraulic fracturing
geomechanics
unconventional reservoirs
induced seismicity
David W Mittlefehldt
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,783
3,580
0.260
Planetary Science
Meteoritics
Cosmochemistry
Geochemistry
Petrology
Shuichang Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,753
7,053
0.513
Petroleum Generation
Precambrian Research
Biomarker Geochemistry
Diana Katherine Quiñónez Portocarrero
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,428
2,735
0.204
PETROLEO
QUIMICA
EDUCACIÓN
ARTE
CIENCIA