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Company · Stavanger · Norway

Petroleum Technology Company (Norway)

In research, Petroleum Technology Company (Norway) stands highest in Physical Sciences (#8,155 of 10,670 worldwide), 2022-now. Relative to its size it is most specialised in Ocean Engineering (Ocean Engineering is 45.1× its share of world research).

ptc.asROR OpenAlex
World rank, 2022-now
#20,635
of 22,385 · #12,926 all time
Rank in Norway
#117
of 123
Research works
1.1k
▲ 142% vs 2018-21
Citations
17k
15.9 per fractional work
Top-10% rate
4.4%
all institutions 10.0%
vs its own fields
0.92×
1.00× is exactly expected
Open access
15%
world 40%
International
40%
world 18%
Petroleum Technology Company (Norway)

What is Petroleum Technology Company (Norway) known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #8,155 of 10,670 3.7%92 #4980

Each strip is that field's whole ranked pool, with the notch where Petroleum Technology Company (Norway) 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Petroleum Technology Company (Norway) work in?

In 2022-now, 96% of research at Petroleum Technology Company (Norway) is in Physical Sciences, 2% in Health Sciences. Its largest fields are Engineering (61%), Earth and Planetary Sciences (12%), Environmental Science (6%). It does 2.4× the world's share of Physical Sciences.

Physical Sciences: 120 fractional works · 95.8% of its workEngineering: 77 fractional works · 61.1% of its workOcean Engineering: 29 fractional works · 23.4% of its workMechanical Engineering: 19 fractional works · 15.0% of its workMechanics of Materials: 10 fractional works · 8.1% of its workControl and Systems Engineering: 4 fractional works · 3.3% of its workBiomedical Engineering: 3 fractional works · 2.5% of its workCivil and Structural Engineering: 2 fractional works · 2.0% of its workElectrical and Electronic Engineering: 2 fractional works · 1.6% of its workComputational Mechanics: 2 fractional works · 1.3% of its workAerospace Engineering: 1 fractional works · 1.1% of its workSafety, Risk, Reliability and Quality: 1 fractional works · 0.8% of its workAutomotive Engineering: 1 fractional works · 0.7% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 0.6% of its workBuilding and Construction: 0 fractional works · 0.4% of its workEarth and Planetary Sciences: 15 fractional works · 11.7% of its workGeophysics: 7 fractional works · 5.9% of its workGeology: 4 fractional works · 2.9% of its workEarth-Surface Processes: 2 fractional works · 1.3% of its workPaleontology: 1 fractional works · 0.6% of its workGeochemistry and Petrology: 1 fractional works · 0.5% of its workAtmospheric Science: 1 fractional works · 0.4% of its workEnvironmental Science: 8 fractional works · 6.5% of its workEnvironmental Engineering: 2 fractional works · 1.6% of its workPollution: 1 fractional works · 1.1% of its workEnvironmental Chemistry: 1 fractional works · 1.0% of its workWater Science and Technology: 1 fractional works · 0.8% of its workGlobal and Planetary Change: 1 fractional works · 0.5% of its workEcological Modeling: 1 fractional works · 0.5% of its workManagement, Monitoring, Policy and Law: 1 fractional works · 0.4% of its workEcology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workMaterials Science: 6 fractional works · 5.1% of its workMaterials Chemistry: 4 fractional works · 3.3% of its workMetals and Alloys: 1 fractional works · 0.5% of its workPolymers and Plastics: 1 fractional works · 0.5% of its workSurfaces, Coatings and Films: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workComputer Science: 5 fractional works · 4.1% of its workArtificial Intelligence: 2 fractional works · 1.7% of its workComputer Vision and Pattern Recognition: 1 fractional works · 1.1% of its workComputer Networks and Communications: 1 fractional works · 0.5% of its workInformation Systems: 0 fractional works · 0.3% of its workComputational Theory and Mathematics: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workChemistry: 3 fractional works · 2.6% of its workAnalytical Chemistry: 2 fractional works · 1.2% of its workOrganic Chemistry: 1 fractional works · 0.6% of its workInorganic Chemistry: 1 fractional works · 0.5% of its workSpectroscopy: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workEnergy: 3 fractional works · 2.3% of its workRenewable Energy, Sustainability and the Environment: 2 fractional works · 2.0% of its workEnergy Engineering and Power Technology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPhysics and Astronomy: 2 fractional works · 1.3% of its workNuclear and High Energy Physics: 1 fractional works · 0.5% of its workAtomic and Molecular Physics, and Optics: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workChemical Engineering: 1 fractional works · 0.9% of its workCatalysis: 1 fractional works · 0.6% of its workFluid Flow and Transfer Processes: 0 fractional works · 0.2% of its workMathematics: 0 fractional works · 0.3% of its workHealth Sciences: 2 fractional works · 1.6% of its workMedicine: 2 fractional works · 1.3% of its workComplementary and alternative medicine: 0 fractional works · 0.4% of its workPublic Health, Environmental and Occupational Health: 0 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.5% of its workHealth Professions: 0 fractional works · 0.4% of its workSocial Sciences: 2 fractional works · 1.6% of its workDecision Sciences: 1 fractional works · 0.6% of its workStatistics, Probability and Uncertainty: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workSocial Sciences: 1 fractional works · 0.5% of its workPolitical Science and International Relations: 0 fractional works · 0.3% of its workSociology and Political Science: 0 fractional works · 0.3% of its workBusiness, Management and Accounting: 0 fractional works · 0.2% of its workPsychology: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.1% of its workLife Sciences: 1 fractional works · 1.1% of its workBiochemistry, Genetics and Molecular Biology: 1 fractional works · 0.5% of its workMolecular Biology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 0 fractional works · 0.3% of its workCognitive Neuroscience: 0 fractional works · 0.3% of its workAgricultural and Biological Sciences: 0 fractional works · 0.2% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workALL ITS WORKPetroleumTechnology…126fractional works, 2022-now
Life Sciences1%Physical Sciences96%Health Sciences2%Social Sciences2%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 21 fields, with their numbers
    1. Engineering7761.1%
    2. Earth and Planetary Sciences1511.7%
    3. Environmental Science86.5%
    4. Materials Science65.1%
    5. Computer Science54.1%
    6. Chemistry32.6%
    7. Energy32.3%
    8. Physics and Astronomy21.3%
    9. Chemical Engineering10.9%
    10. Mathematics00.3%
    1. Medicine21.3%
    2. Health Professions00.4%
    1. Decision Sciences10.6%
    2. Social Sciences10.5%
    3. Business, Management and Accounting00.2%
    4. Psychology00.1%
    5. Economics, Econometrics and Finance00.1%
    1. Biochemistry, Genetics and Molecular Biology10.5%
    2. Neuroscience00.3%
    3. Agricultural and Biological Sciences00.2%
    4. Immunology and Microbiology00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Petroleum Technology Company (Norway) specialise in?

Where its research is concentrated relative to its size: Ocean Engineering takes 45.1× the share of its output that it takes of world research.

  1. Ocean EngineeringSubfield · 29.4 works45×
← 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, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.09× its world share, 1 worksBiochemistry, Geneti…Immunology and Microbiology: 0.13× its world share, 0 worksImmunology and Micro…Neuroscience: 0.18× its world share, 0 worksNeuroscienceChemical Engineering: 2.44× its world share, 1 worksChemical EngineeringChemistry: 1.63× its world share, 3 worksChemistryComputer Science: 0.53× its world share, 5 worksComputer ScienceEarth and Planetary Sciences: 7.46× its world share, 15 worksEarth and Planetary …Energy: 2.50× its world share, 3 worksEnergyEngineering: 4.07× its world share, 77 worksEngineeringEnvironmental Science: 1.30× its world share, 8 worksEnvironmental ScienceMaterials Science: 1.46× its world share, 6 worksMaterials ScienceMathematics: 0.23× its world share, 0 worksMathematicsPhysics and Astronomy: 0.60× its world share, 2 worksPhysics and AstronomyHealth Professions: 0.14× its world share, 0 worksHealth ProfessionsMedicine: 0.07× its world share, 2 worksMedicineBusiness, Management and Accounting: 0.05× its world share, 0 worksBusiness, Management…Decision Sciences: 0.62× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.05× its world share, 0 worksEconomics, Econometr…Psychology: 0.04× its world share, 0 worksPsychologySocial Sciences: 0.04× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 7.5×. Every wedge is a field page.

All 21 fields, with their numbers
  1. Earth and Planetary Sciences7.46×15 works
  2. Engineering4.07×77 works
  3. Energy2.50×3 works
  4. Chemical Engineering2.44×1 works
  5. Chemistry1.63×3 works
  6. Materials Science1.46×6 works
  7. Environmental Science1.30×8 works
  8. Decision Sciences0.62×1 works
  9. Physics and Astronomy0.60×2 works
  10. Computer Science0.53×5 works
  11. Mathematics0.23×0 works
  12. Neuroscience0.18×0 works
  13. Health Professions0.14×0 works
  14. Immunology and Microbiology0.13×0 works
  15. Biochemistry, Genetics and Molecular Biology0.09×1 works
  16. Medicine0.07×2 works
  17. Business, Management and Accounting0.05×0 works
  18. Economics, Econometrics and Finance0.05×0 works
  19. Psychology0.04×0 works
  20. Social Sciences0.04×1 works
  21. Agricultural and Biological Sciences0.03×0 works

Who are the top researchers at Petroleum Technology Company (Norway)?

Ranked on the quality score, Frederick B. Plummer, C. L. Jensen and Dong Dong Gui lead among researchers whose main affiliation is Petroleum Technology Company (Norway).

  1. 1 Frederick B. Plummer Norway · #2,545,173 worldwide 193 citations · 57 works
  2. 2 C. L. Jensen Norway · #2,953,602 worldwide 766 citations · 18 works
  3. 3 Dong Dong Gui Norway · #4,859,362 worldwide 27 citations · 15 works
  4. 4 P.C. Crouse Norway · #4,982,228 worldwide 24 citations · 21 works
All ranked researchers at Petroleum Technology Company (Norway)

What are the most cited papers from Petroleum Technology Company (Norway)?

The most cited paper from Petroleum Technology Company (Norway) is "Relative Permeability Calculations From Pore Size Distribution Data" (N.T. Burdine, 1953), with 1,589 citations. Next come "Production Analysis of Linear Flow Into Fractured Tight Gas Wells" (435) and "A Model for the Mechanism of Oil Recovery from the Porous Matrix Due to Water Invasion in Fractured Reservoirs" (294).

Most cited papers
#PaperReleasedCitations
1 Relative Permeability Calculations From Pore Size Distribution Data N.T. Burdine · Journal of Petroleum Technology Mar 1953 1,589
2 Production Analysis of Linear Flow Into Fractured Tight Gas Wells Robert A. Wattenbarger, Ahmed H. El-Banbi, Mauricio Eduardo Villegas et al. Conference paper 5 Apr 1998 435
3 A Model for the Mechanism of Oil Recovery from the Porous Matrix Due to Water Invasion in Fractured Reservoirs J.S. Aronofsky, L. Massé, S.G. Natanson · Transactions of the AIME Dec 1958 294
4 Generalized Minimum Miscibility Pressure Correlation Olstein Glasø · Society of Petroleum Engineers Journal Dec 1985 216
5 Geologic evolution and hydrocarbon habitat of the ‘Arctic Alaska Microplate’ Richard J. Hubbard, Steven P. Edrich, R. Peter Rattey · Marine and Petroleum Geology Open access Feb 1987 179
All 60 most cited papers, with filters and sorting

Which keywords describe research at Petroleum Technology Company (Norway)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Hydraulic Fracturing, CO2 Sequestration, Fracture Propagation, Shale Gas Reservoirs, Nanoparticles, Optimization, Vibration Analysis and Pore Structure.

▲ 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-now 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 Learning11▲ 2.6×19 topics
  2. Hydraulic Fracturing10▲ 77×2 topics
  3. Nanoparticles10▲ 6.5×9 topics
  4. CO2 Sequestration10▲ 41×4 topics
  5. Fracture Propagation10▲ 131×1 topic
  6. Shale Gas Reservoirs10▲ 131×1 topic
  7. Optimization9▲ 17×8 topics
  8. Pore Structure8▲ 55×2 topics
  9. Vibration Analysis8▲ 25×4 topics
  10. Shale Gas8▲ 55×2 topics
  11. Gas Permeability8▲ 67×2 topics
  12. Rheological Properties8▲ 36×4 topics
  13. Drilling Fluids8▲ 118×1 topic
  14. Mudstones8▲ 86×1 topic
  15. Thermal Maturity8▲ 86×1 topic
  16. Well Integrity8▲ 118×1 topic
  17. Data Assimilation8▲ 38×1 topic
  18. Ensemble Kalman Filter8▲ 60×1 topic
  19. Surfactants7▲ 57×4 topics
  20. Porous Media7▲ 41×5 topics
  21. Fault Diagnosis6▲ 32×3 topics
  22. Pore-scale Modeling6▲ 121×1 topic
  23. X-ray Computed Tomography6▲ 121×1 topic
  24. Predictive Maintenance5▲ 55×2 topics
  25. Artificial Lift Systems5▲ 145×1 topic
  26. Electric Submersible Pumps5▲ 145×1 topic
  27. Renewable Energy5▲ 2.5×18 topics
  28. Geophysical Imaging4▲ 63×2 topics
  29. Inverse Problems4▲ 27×2 topics
  30. Full-Waveform Tomography4▲ 68×1 topic
  31. Seismic Waveform Inversion4▲ 68×1 topic
  32. Tectonics4▲ 24×3 topics
  33. Continental Margin4▲ 48×2 topics
  34. Crustal Structure4▲ 48×2 topics
  35. Petroleum3▲ 54×2 topics
  36. Plate Tectonics3▲ 14×3 topics
  37. Biodegradation3▲ 20×3 topics
  38. Corrosion3▲ 17×6 topics
  39. Numerical Simulation2▲ 5.9×7 topics
  40. Arctic2▲ 14×3 topics

Which research topics does Petroleum Technology Company (Norway) publish most on?

By volume in 2022-now: Hydraulic Fracturing and Reservoir Analysis, Hydrocarbon exploration and reservoir analysis, Drilling and Well Engineering and Reservoir Engineering and Simulation Methods.

Hydraulic Fracturing and Reservoir Analysis: 10 fractional worksHydrocarbon exploration and reservoir analysis: 8 fractional worksDrilling and Well Engine…8Drilling and Well Engineering: 8 fractional worksReservoir Engineering an…8Reservoir Engineering and Simulation Methods: 8 fractional worksEnhanced Oil Recovery Techniques: 6 fractional worksOil and Gas Production Techniques: 5 fractional worksSeismic Imaging and Inversion Techniques: 4 fractional worksGeological and Geophysical Studies: 2 fractional worksGeological formations and processes: 2 fractional worksGeological Studies and Exploration: 2 fractional works
Mechanical EngineeringMechanics of MaterialsOcean EngineeringGeophysics2 others

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

  1. 1 Hydraulic Fracturing and Reservoir Analysis Mechanical Engineering 10 works
  2. 2 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 8 works
  3. 3 Drilling and Well Engineering Ocean Engineering 8 works
  4. 4 Reservoir Engineering and Simulation Methods Ocean Engineering 8 works
  5. 5 Enhanced Oil Recovery Techniques Ocean Engineering 6 works
  6. 6 Oil and Gas Production Techniques Ocean Engineering 5 works
  7. 7 Seismic Imaging and Inversion Techniques Geophysics 4 works
  8. 8 Geological and Geophysical Studies Geology 2 works
  9. 9 Geological formations and processes Earth-Surface Processes 2 works
  10. 10 Geological Studies and Exploration Geology 2 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 available14.9%not open85.1%

World: 40% of research is openly available.

with international co-authors40.2%domestic only59.8%

World: 18% is written across borders.

How has Petroleum Technology Company (Norway)'s research output changed?

Output in 2022-2025 was 142% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Petroleum Technology Company (Norway) as a percentage of every work published that year, 0.00042% in 2024.

still counting0.0025%0.0050%0.0075%Petroleum Technology Company (Norway)0.00096% in 202519801990200020102020

Fractional works of Petroleum Technology Company (Norway) over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Petroleum Technology Company (Norway)4.4% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 8.3% in 1998.

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Petroleum Technology Company (Norway) on Science Explorer

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