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Company · Beijing · China

China National Offshore Oil Corporation (China)

In research, China National Offshore Oil Corporation (China) stands highest in Engineering (#1,601 of 6,636 worldwide), Physical Sciences (#3,293 of 12,888 worldwide) and Ocean Engineering (#113 of 286 worldwide), 2022–2025. Relative to its size it is most specialised in Ocean Engineering, Geology and Geophysics — Ocean Engineering is 39.6× its share of world research.

cnooc.com.cn/enROR OpenAlex
World rank, 2022–2025
#5,865
of 28,054 · #10,524 all time
Rank in China
#1,246
of 3,058
Research works
4.1k
▼ 11% vs 2013–17
Citations
26k
6.3 per fractional work
Top-10% rate
12.6%
record average 16.5%
Open access
20%
world 28%

What is China National Offshore Oil Corporation (China) 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
EngineeringField #1,601 of 6,636 11.6%622 #2536
Physical SciencesDomain #3,293 of 12,888 12.6%990 #6166
Ocean EngineeringSubfield #113 of 286 10.0%209 #328
Mechanics of MaterialsSubfield #251 of 458 11.4%128 #748
Mechanical EngineeringSubfield #899 of 1,351 10.7%123 #1718
Environmental ScienceField #2,710 of 3,551 13.7%87 #4013
Earth and Planetary SciencesField #980 of 1,209 13.9%164 #2073
GeophysicsSubfield #200 of 237 11.9%65 #644

Each strip is that field’s whole ranked pool, with the notch where China National Offshore Oil Corporation (China) 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. Engineering#2,536 #1,601
  2. Physical Sciences#6,166 #3,293
  3. Ocean Engineering#328 #113
  4. Mechanics of Materials#748 #251
  5. Mechanical Engineering#1,718 #899
  6. Environmental Science#4,013 #2,710
  7. Earth and Planetary Sciences#2,073 #980
  8. Geophysics#644 #200
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 China National Offshore Oil Corporation (China) specialise in?

Where its research is concentrated relative to its size: Ocean Engineering takes 39.6× the share of its output that it takes of world research.

  1. Ocean EngineeringSubfield · 208.8 works40×
  2. GeologySubfield · 48.2 works35×
  3. GeophysicsSubfield · 65.5 works18×
  4. Mechanics of MaterialsSubfield · 128.4 works18×
  5. Environmental ChemistrySubfield · 37.0 works17×
  6. Earth and Planetary SciencesField · 163.7 works10×
← 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: 0.03× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.05× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.01× its world share, 0 worksImmunology and Micro…Neuroscience: 0.02× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.08× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 1.35× its world share, 5 worksChemical EngineeringChemistry: 1.57× its world share, 25 worksChemistryComputer Science: 0.38× its world share, 30 worksComputer ScienceEarth and Planetary Sciences: 10.29× its world share, 164 worksEarth and Planetary …Energy: 1.02× its world share, 10 worksEnergyEngineering: 4.09× its world share, 622 worksEngineeringEnvironmental Science: 1.73× its world share, 87 worksEnvironmental ScienceMaterials Science: 1.13× its world share, 40 worksMaterials ScienceMathematics: 0.07× its world share, 1 worksMathematicsPhysics and Astronomy: 0.30× its world share, 7 worksPhysics and AstronomyDentistry: 0.02× its world share, 0 worksDentistryHealth Professions: 0.02× its world share, 1 worksHealth ProfessionsMedicine: 0.01× its world share, 2 worksMedicineBusiness, Management and Accounting: 0.12× its world share, 4 worksBusiness, Management…Decision Sciences: 0.58× its world share, 6 worksDecision SciencesEconomics, Econometrics and Finance: 0.11× its world share, 2 worksEconomics, Econometr…Social Sciences: 0.03× its world share, 4 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 10.3×. Every wedge is a field page.

Who are the top researchers at China National Offshore Oil Corporation (China)?

Ranked on the composite score, You Li, Qiuxia Wang and Huailiang Li lead among researchers whose main affiliation is China National Offshore Oil Corporation (China).

  1. 1 You Li China · #428,864 worldwide 26 citations · 25 works
  2. 2 Qiuxia Wang China · #431,436 worldwide 122 citations · 41 works
  3. 3 Huailiang Li China · #506,716 worldwide 38 citations · 23 works
  4. 4 Yigang Liu China · #630,762 worldwide 96 citations · 20 works
  5. 5 Changgui Xu China · #938,270 worldwide 56 citations · 27 works
  6. 6 Ying Chen China · #994,193 worldwide 24 citations · 16 works
  7. 7 Qing Wu China · #1,227,242 worldwide 33 citations · 25 works
  8. 8 Donghong Zhou China · #1,247,943 worldwide 9 citations · 16 works
  9. 9 Cnooc Energy China · #1,347,643 worldwide 5 citations · 109 works
  10. 10 Jian Zhang China · #1,375,098 worldwide 27 citations · 20 works
All ranked researchers at China National Offshore Oil Corporation (China)

Which keywords describe research at China National Offshore Oil Corporation (China)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Pore Structure, Shale Gas, Gas Permeability, Nanopores, Mudstones, Thermal Maturity, Hydraulic Fracturing and Fracture Propagation.

▲ 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. Pore Structure104▲ 83×3 topics
  2. Shale Gas101▲ 79×2 topics
  3. Gas Permeability98▲ 96×2 topics
  4. Nanopores97▲ 99×2 topics
  5. Mudstones97▲ 124×1 topic
  6. Thermal Maturity97▲ 124×1 topic
  7. Hydraulic Fracturing79▲ 71×2 topics
  8. Fracture Propagation75▲ 121×1 topic
  9. Shale Gas Reservoirs75▲ 121×1 topic
  10. CO2 Sequestration69▲ 36×4 topics
  11. Nanoparticles61▲ 4.8×20 topics
  12. Vibration Analysis59▲ 21×7 topics
  13. Surfactants50▲ 51×4 topics
  14. Porous Media50▲ 37×5 topics
  15. Rheological Properties50▲ 28×3 topics
  16. Drilling Fluids49▲ 89×1 topic
  17. Well Integrity49▲ 89×1 topic
  18. Continental Margin48▲ 76×2 topics
  19. Crustal Structure48▲ 76×2 topics
  20. Geophysical Imaging45▲ 83×2 topics
  21. Nanofluids45▲ 54×2 topics
  22. Pore-scale Modeling45▲ 122×1 topic
  23. X-ray Computed Tomography45▲ 122×1 topic
  24. Optimization44▲ 9.3×13 topics
  25. Plate Tectonics43▲ 28×3 topics
  26. Elastic Properties41▲ 53×2 topics
  27. Inverse Problems41▲ 38×3 topics
  28. Full-Waveform Tomography41▲ 97×1 topic
  29. Seismic Waveform Inversion41▲ 97×1 topic
  30. Data Assimilation41▲ 26×4 topics
  31. Uncertainty Quantification40▲ 48×2 topics
  32. Ensemble Kalman Filter40▲ 39×2 topics
  33. Closed-Loop Control39▲ 83×1 topic
  34. Well Placement39▲ 83×1 topic
  35. Microbial Communities38▲ 8.7×5 topics
  36. Cenozoic Evolution37▲ 97×1 topic
  37. Rifting37▲ 97×1 topic
  38. Anaerobic36▲ 51×1 topic
  39. Methane Oxidation36▲ 44×1 topic
  40. Numerical Simulation34▲ 11×13 topics

Which research topics does China National Offshore Oil Corporation (China) publish most on?

By volume in 2022–2025: Hydrocarbon exploration and reservoir analysis, Hydraulic Fracturing and Reservoir Analysis, Drilling and Well Engineering and Enhanced Oil Recovery Techniques.

Hydrocarbon exploration …97Hydrocarbon exploration and reservoir analysis: 97 fractional worksHydraulic Fracturing and Reservoir Analysis: 75 fractional worksDrilling and Well Engine…49Drilling and Well Engineering: 49 fractional worksEnhanced Oil Recovery Te…45Enhanced Oil Recovery Techniques: 45 fractional worksSeismic Imaging and Inversion Techniques: 41 fractional worksReservoir Engineering and Simulation Methods: 39 fractional worksGeological and Geophysic…37Geological and Geophysical Studies: 37 fractional worksMethane Hydrates and Related Phenomena: 36 fractional worksOil and Gas Production Techniques: 21 fractional worksOffshore Engineering and Technologies: 16 fractional works
Mechanics of MaterialsMechanical EngineeringOcean EngineeringGeophysics2 others

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

  1. 1 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 97 works
  2. 2 Hydraulic Fracturing and Reservoir Analysis Mechanical Engineering 75 works
  3. 3 Drilling and Well Engineering Ocean Engineering 49 works
  4. 4 Enhanced Oil Recovery Techniques Ocean Engineering 45 works
  5. 5 Seismic Imaging and Inversion Techniques Geophysics 41 works
  6. 6 Reservoir Engineering and Simulation Methods Ocean Engineering 39 works
  7. 7 Geological and Geophysical Studies Geology 37 works
  8. 8 Methane Hydrates and Related Phenomena Environmental Chemistry 36 works
  9. 9 Oil and Gas Production Techniques Ocean Engineering 21 works
  10. 10 Offshore Engineering and Technologies Ocean Engineering 16 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 available19.7%not open80.3%

World: 28% of research is openly available.

with international co-authors7.3%domestic only92.7%

World: 19% is written across borders.

How has China National Offshore Oil Corporation (China)'s research output changed?

Output in 2018–2022 was 11% 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 Beijing

All research institutions in Beijing

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.