Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as Scientists Last 6 Years' i10 Index, Universities Total i10 Index Rankings 2025, Universities Last 6 Years' i10 Index Rankings 2025, Art and Humanities i10 Productivity Rankings, and Social Sciences and Humanities i10 Productivity Rankings.
* Total i10 IndexRankings
Ranking Based On Selection :1
Petroleum engineering consultant
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
52
0.650
* Total i10 IndexRankings
Ranking Based On Selection :2
petroleum engineering
enhanced oil recovery
CO2
phase behavior
PVT
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
44
0.595
* Total i10 IndexRankings
Ranking Based On Selection :3
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
43
0.915
* Total i10 IndexRankings
Ranking Based On Selection :4
Flow in Porous Media
Reservoir Simulation
Enhanced Oil Recovery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
41
0.911
* Total i10 IndexRankings
Ranking Based On Selection :5
Petroleumics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
35
0.833
* Total i10 IndexRankings
Ranking Based On Selection :6
Oil field chemicals
Drilling fluid additives
Lost circulation materials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
26
0.839
* Total i10 IndexRankings
Ranking Based On Selection :7
Petroleum Engineering
Energy Markets and Economics
Artificial Intelligence
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
15
0.714
* Total i10 IndexRankings
Ranking Based On Selection :8
Formation Evaluation
Reservoir Engineering and Enhanced Oil Recovery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
14
0.667
* Total i10 IndexRankings
Ranking Based On Selection :9
Chemical Engineering
Petroleum Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
7
0.412
* Total i10 IndexRankings
Ranking Based On Selection :10
Petroleum Engineering
Drilling Geomechanics
Wellbore stability
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
14
0.933
* Total i10 IndexRankings
Ranking Based On Selection :11
Wireless Communications
wireless underground sensor networks
in-suite sensing methodologies and applications for monitoring oi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
13
0.929
* Total i10 IndexRankings
Ranking Based On Selection :12
Reservoir & Production: Inflow performance
water control
condensate banking
PVT Hydrocarbon Phase Behavior
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
7
0.636
* Total i10 IndexRankings
Ranking Based On Selection :13
Petroleum engineering
technology
oil and gas
economy
energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
6
0.545
* Total i10 IndexRankings
Ranking Based On Selection :14
SmartWater Flooding
Enhanced Oil Recovery
Digital Rock Physics
Petrophysics
and fluid flow in porous media
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
8
0.889
* Total i10 IndexRankings
Ranking Based On Selection :15
Uncertainty Quantification
EOR
Decision Making
Real Options Theory
Dynamic Programming
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
6
0.667
* Total i10 IndexRankings
Ranking Based On Selection :16
Petroleum Engineering
Chemical EOR
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
* Total i10 IndexRankings
Ranking Based On Selection :17
petroleum
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
* Total i10 IndexRankings
Ranking Based On Selection :18
Basin simulation
molecular dynamics simulations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
2
0.286
* Total i10 IndexRankings
Ranking Based On Selection :19
Hydraulic Fracturing
unconventional resources
geomechanics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 IndexRankings
Ranking Based On Selection :20
hydrocarbon recovery processes optimization
realtime data stream mining
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Total i10 IndexRankings
Ranking Based On Selection :21
Petroleum Engineering
Emulsions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Total i10 IndexRankings
Ranking Based On Selection :22
Flow Assurance
Scale Mitigation
Acid and Fracturing Stimulation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
2
0.500
* Total i10 IndexRankings
Ranking Based On Selection :23
Oil & Gas
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 IndexRankings
Ranking Based On Selection :24
Petroleum Engineering
Artificial Lift
ESPs
Well Intervetions and Completions
Data Analytics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
* Total i10 IndexRankings
Ranking Based On Selection :25
Chemical Synthesis
Sustainable Oilfields Chemicals
Wellbore Isolation
Loss circulations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Sameeh Batarseh
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
52
0.650
Petroleum engineering consultant
Sunil Kokal
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
44
0.595
petroleum engineering
enhanced oil recovery
CO2
phase behavior
PVT
Ayman R Al-Nakhli
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
43
0.915
Abdulkareem M Alsofi
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
41
0.911
Flow in Porous Media
Reservoir Simulation
Enhanced Oil Recovery
Adnan Al Hajji
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
35
0.833
Jothibasu Ramasamy
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
26
0.839
Oil field chemicals
Drilling fluid additives
Lost circulation materials
Saud M Al-Fattah
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
15
0.714
Petroleum Engineering
Energy Markets and Economics
Artificial Intelligence
Taha Okasha
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
14
0.667
Formation Evaluation
Reservoir Engineering and Enhanced Oil Recovery
Usuf Middya
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
7
0.412
Chemical Engineering
Petroleum Engineering
Hussain Albahrani
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
14
0.933
Petroleum Engineering
Drilling Geomechanics
Wellbore stability
Abdallah Alshehri
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
13
0.929
Wireless Communications
wireless underground sensor networks
in-suite sensing methodologies and applications for monitoring oi
Akim Kabir
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
7
0.636
Reservoir & Production: Inflow performance
water control
condensate banking
PVT Hydrocarbon Phase Behavior
Msalli Alotaibi
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
6
0.545
Petroleum engineering
technology
oil and gas
economy
energy
Sultan Al Enezi
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
8
0.889
SmartWater Flooding
Enhanced Oil Recovery
Digital Rock Physics
Petrophysics
and fluid flow in porous media
Ali Alkhatib
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
6
0.667
Uncertainty Quantification
EOR
Decision Making
Real Options Theory
Dynamic Programming
Amar Alshehri
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
Petroleum Engineering
Chemical EOR
Pratyush Singh
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
Isabella Inzoli
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
2
0.286
Basin simulation
molecular dynamics simulations
Mohammed Kurdi
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
Hydraulic Fracturing
unconventional resources
geomechanics
Muhammad Algosayir
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
hydrocarbon recovery processes optimization
realtime data stream mining
Mohammad Al-Abbad
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
Petroleum Engineering
Emulsions
Yaser Alduailej
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
2
0.500
Flow Assurance
Scale Mitigation
Acid and Fracturing Stimulation
Nassir Abalkhail
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Mohannad Abdelaziz
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
Petroleum Engineering
Artificial Lift
ESPs
Well Intervetions and Completions
Data Analytics
Khawlah Alanqari
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Chemical Synthesis
Sustainable Oilfields Chemicals
Wellbore Isolation
Loss circulations