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Company · Rome · Italy

Eni (Italy)

In research, Eni (Italy) stands highest in Physical Sciences (#4,548 of 12,888 worldwide), Engineering (#4,386 of 6,636 worldwide) and Ocean Engineering (#281 of 286 worldwide), 2022–2025. Relative to its size it is most specialised in Ocean Engineering — Ocean Engineering is 36.4× its share of world research.

eni.comROR OpenAlex
World rank, 2022–2025
#6,294
of 28,054 · #3,176 all time
Rank in Italy
#179
of 618
Research works
3.4k
▼ 7% vs 2013–17
Citations
65k
19.3 per fractional work
Top-10% rate
9.9%
record average 16.5%
Open access
16%
world 28%

What is Eni (Italy) known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #4,548 of 12,888 8.9%296 #2099
EngineeringField #4,386 of 6,636 6.4%164 #3422
Ocean EngineeringSubfield #281 of 286 1.4%71 #463

Each strip is that field’s whole ranked pool, with the notch where Eni (Italy) sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#2,099 #4,548
  2. Engineering#3,422 #4,386
  3. Ocean Engineering#463 #281
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Eni (Italy) specialise in?

Where its research is concentrated relative to its size: Ocean Engineering takes 36.4× the share of its output that it takes of world research.

  1. Ocean EngineeringSubfield · 71.2 works36×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.41× its world share, 7 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.16× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.11× its world share, 0 worksImmunology and Micro…Neuroscience: 0.04× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.04× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 5.01× its world share, 7 worksChemical EngineeringChemistry: 1.16× its world share, 7 worksChemistryComputer Science: 0.60× its world share, 18 worksComputer ScienceEarth and Planetary Sciences: 5.90× its world share, 35 worksEarth and Planetary …Energy: 3.39× its world share, 12 worksEnergyEngineering: 2.90× its world share, 164 worksEngineeringEnvironmental Science: 1.67× its world share, 31 worksEnvironmental ScienceMaterials Science: 1.28× its world share, 17 worksMaterials ScienceMathematics: 0.25× its world share, 1 worksMathematicsPhysics and Astronomy: 0.71× its world share, 6 worksPhysics and AstronomyHealth Professions: 0.65× its world share, 6 worksHealth ProfessionsMedicine: 0.21× its world share, 15 worksMedicineNursing: 0.17× its world share, 0 worksNursingVeterinary: 0.22× its world share, 0 worksVeterinaryArts and Humanities: 0.44× its world share, 5 worksArts and HumanitiesBusiness, Management and Accounting: 0.28× its world share, 3 worksBusiness, Management…Decision Sciences: 1.47× its world share, 5 worksDecision SciencesEconomics, Econometrics and Finance: 0.42× its world share, 3 worksEconomics, Econometr…Psychology: 0.27× its world share, 3 worksPsychologySocial Sciences: 0.55× its world share, 26 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 5.9×. Every wedge is a field page.

Who are the top researchers at Eni (Italy)?

Ranked on the composite score, Giuseppe Bellussi, Thomas P. Lockhart and Carlo Perego lead among researchers whose main affiliation is Eni (Italy).

  1. 1 Giuseppe Bellussi · #129,119 worldwide 350 citations · 31 works
  2. 2 Thomas P. Lockhart · #145,645 worldwide 235 citations · 25 works
  3. 3 Carlo Perego · #169,174 worldwide 302 citations · 21 works
  4. 4 Roberto Millini · #174,593 worldwide 282 citations · 46 works
  5. 5 G. Petrini · #220,736 worldwide 235 citations · 19 works
  6. 6 Umberto Colombo · #242,087 worldwide 122 citations · 22 works
  7. 7 L. Cassar · #275,042 worldwide 246 citations · 23 works
  8. 8 F. Garbassi · #278,149 worldwide 270 citations · 39 works
  9. 9 Andrea Bernardi · #286,486 worldwide 232 citations · 38 works
  10. 10 Vincenzo Calemma · #293,840 worldwide 163 citations · 22 works
All ranked researchers at Eni (Italy)

Which keywords describe research at Eni (Italy)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Optimization, Data Assimilation, Ensemble Kalman Filter, Uncertainty Quantification, Well Placement, CO2 Sequestration, Hydraulic Fracturing and Nanoparticles.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Machine Learning30▲ 2.5×31 topics
  2. Optimization29▲ 16×7 topics
  3. Data Assimilation25▲ 43×2 topics
  4. Ensemble Kalman Filter25▲ 66×2 topics
  5. Uncertainty Quantification25▲ 80×1 topic
  6. Well Placement25▲ 142×1 topic
  7. CO2 Sequestration24▲ 34×3 topics
  8. Nanoparticles24▲ 5.1×19 topics
  9. Hydraulic Fracturing20▲ 49×2 topics
  10. Renewable Energy20▲ 3.7×22 topics
  11. Fracture Propagation19▲ 82×1 topic
  12. Shale Gas Reservoirs19▲ 82×1 topic
  13. Sustainability19▲ 2.0×30 topics
  14. Rheological Properties17▲ 26×3 topics
  15. Vibration Analysis17▲ 17×2 topics
  16. Drilling Fluids17▲ 82×1 topic
  17. Well Integrity17▲ 82×1 topic
  18. Predictive Maintenance14▲ 48×3 topics
  19. Data Analytics14▲ 78×2 topics
  20. Fault Diagnosis13▲ 24×2 topics
  21. Artificial Lift Systems13▲ 118×1 topic
  22. Electric Submersible Pumps13▲ 118×1 topic
  23. Geological Mapping10▲ 33×2 topics
  24. GIS-based Modeling9▲ 27×2 topics
  25. Reactive Transport8▲ 43×2 topics
  26. Data Integration8▲ 13×2 topics
  27. Geological Modeling8▲ 144×1 topic
  28. Uncertainty Analysis8▲ 144×1 topic
  29. Geophysical Imaging8▲ 38×2 topics
  30. Inverse Problems8▲ 19×2 topics
  31. Elastic Properties8▲ 26×2 topics
  32. Carbon Capture7▲ 48×2 topics
  33. Full-Waveform Tomography7▲ 47×1 topic
  34. Seismic Waveform Inversion7▲ 47×1 topic
  35. Geological Storage7▲ 68×1 topic
  36. Mineral Carbonation7▲ 68×1 topic
  37. Porous Media7▲ 13×4 topics
  38. Shale Gas6▲ 13×2 topics
  39. Pore-scale Modeling6▲ 44×1 topic
  40. X-ray Computed Tomography6▲ 44×1 topic

Which research topics does Eni (Italy) publish most on?

By volume in 2022–2025: Reservoir Engineering and Simulation Methods, Hydraulic Fracturing and Reservoir Analysis, Drilling and Well Engineering and Oil and Gas Production Techniques.

Reservoir Engineering an…25Reservoir Engineering and Simulation Methods: 25 fractional worksHydraulic Fracturing and Reservoir Analysis: 19 fractional worksDrilling and Well Engineering: 17 fractional worksOil and Gas Production Techniques: 13 fractional worksGeological Modeling and Analysis: 8 fractional worksSeismic Imaging and Inve…7Seismic Imaging and Inversion Techniques: 7 fractional worksCO2 Sequestration and Geologic Interactions: 7 fractional worksEnhanced Oil Recovery Techniques: 6 fractional worksHydrocarbon exploration and reservoir analysis: 5 fractional worksGlobal Energy and Sustainability Research: 4 fractional works
Ocean EngineeringMechanical EngineeringGeochemistry and PetrologyGeophysics3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Reservoir Engineering and Simulation MethodsOcean Engineering 25 works
  2. 2 Hydraulic Fracturing and Reservoir AnalysisMechanical Engineering 19 works
  3. 3 Drilling and Well EngineeringOcean Engineering 17 works
  4. 4 Oil and Gas Production TechniquesOcean Engineering 13 works
  5. 5 Geological Modeling and AnalysisGeochemistry and Petrology 8 works
  6. 6 Seismic Imaging and Inversion TechniquesGeophysics 7 works
  7. 7 CO2 Sequestration and Geologic InteractionsEnvironmental Engineering 7 works
  8. 8 Enhanced Oil Recovery TechniquesOcean Engineering 6 works
  9. 9 Hydrocarbon exploration and reservoir analysisMechanics of Materials 5 works
  10. 10 Global Energy and Sustainability ResearchRenewable Energy, Sustainability and the Environment 4 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available15.6%not open84.4%

World: 28% of research is openly available.

with international co-authors16.6%domestic only83.4%

World: 19% is written across borders.

How has Eni (Italy)'s research output changed?

Output in 2018–2022 was 7% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Rome

All research institutions in Rome

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.