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Company · Lillestrøm · Norway

Applied Petroleum Technology (Norway)

In research, Applied Petroleum Technology (Norway) stands highest in Physical Sciences (#11,157 of 17,446 worldwide), over all time.

aptec.noROR OpenAlex
World rank, all time
#31,104
of 34,923
Rank in Norway
#200
of 215
Research works
186
▼ 19% vs 2018-21
Citations
5.5k
29.7 per fractional work
Top-10% rate
13.9%
all institutions 10.0%
vs its own fields
0.98×
1.00× is exactly expected
Open access
20%
world 40%
International
30%
world 18%
Applied Petroleum Technology (Norway)

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

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #11,157 of 17,446 13.5%181

Each strip is that field's whole ranked pool, with the notch where Applied Petroleum Technology (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 Applied Petroleum Technology (Norway) work in?

In all years, 97% of research at Applied Petroleum Technology (Norway) is in Physical Sciences, 2% in Life Sciences. Its largest fields are Earth and Planetary Sciences (45%), Engineering (39%), Environmental Science (5%). It does 2.3× the world's share of Physical Sciences.

Physical Sciences: 181 fractional works · 97.2% of its workEarth and Planetary Sciences: 83 fractional works · 44.9% of its workGeophysics: 61 fractional works · 32.7% of its workGeology: 8 fractional works · 4.5% of its workEarth-Surface Processes: 4 fractional works · 2.1% of its workOceanography: 4 fractional works · 2.0% of its workAtmospheric Science: 2 fractional works · 1.3% of its workGeochemistry and Petrology: 2 fractional works · 1.3% of its workPaleontology: 2 fractional works · 1.0% of its workEngineering: 72 fractional works · 38.7% of its workOcean Engineering: 30 fractional works · 16.3% of its workMechanical Engineering: 17 fractional works · 9.3% of its workMechanics of Materials: 15 fractional works · 8.0% of its workCivil and Structural Engineering: 3 fractional works · 1.4% of its workComputational Mechanics: 2 fractional works · 0.9% of its workElectrical and Electronic Engineering: 2 fractional works · 0.9% of its workBiomedical Engineering: 1 fractional works · 0.6% of its workControl and Systems Engineering: 1 fractional works · 0.4% of its workAerospace Engineering: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnvironmental Science: 10 fractional works · 5.5% of its workEnvironmental Chemistry: 4 fractional works · 2.4% of its workEnvironmental Engineering: 3 fractional works · 1.4% of its workGlobal and Planetary Change: 1 fractional works · 0.8% 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 · 0.2% of its workComputer Science: 7 fractional works · 3.9% of its workArtificial Intelligence: 4 fractional works · 2.0% of its workComputer Vision and Pattern Recognition: 1 fractional works · 0.8% of its workComputer Graphics and Computer-Aided Design: 1 fractional works · 0.4% of its workSignal Processing: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workPhysics and Astronomy: 3 fractional works · 1.7% of its workNuclear and High Energy Physics: 1 fractional works · 0.7% of its workAtomic and Molecular Physics, and Optics: 1 fractional works · 0.4% of its workStatistical and Nonlinear Physics: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.3% of its workChemistry: 2 fractional works · 0.9% of its workAnalytical Chemistry: 1 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnergy: 1 fractional works · 0.7% of its workGeneral Energy: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMaterials Science: 1 fractional works · 0.6% of its workMaterials Chemistry: 1 fractional works · 0.6% of its workMathematics: 0 fractional works · 0.2% of its workChemical Engineering: 0 fractional works · 0.1% of its workLife Sciences: 3 fractional works · 1.6% of its workBiochemistry, Genetics and Molecular Biology: 3 fractional works · 1.4% of its workMolecular Biology: 2 fractional works · 1.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workAgricultural and Biological Sciences: 0 fractional works · 0.2% of its workHealth Sciences: 2 fractional works · 0.9% of its workMedicine: 1 fractional works · 0.7% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.3% of its workPathology and Forensic Medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workHealth Professions: 0 fractional works · 0.2% of its workSocial Sciences: 1 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.2% of its workBusiness, Management and Accounting: 0 fractional works · 0.1% of its workArts and Humanities: 0 fractional works · 0.1% of its workALL ITS WORKApplied PetroleumTechnology…186fractional works, all years
Life Sciences2%Physical Sciences97%Health Sciences1%Social Sciences0%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in all years. 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 17 fields, with their numbers
    1. Earth and Planetary Sciences8344.9%
    2. Engineering7238.7%
    3. Environmental Science105.5%
    4. Computer Science73.9%
    5. Physics and Astronomy31.7%
    6. Chemistry20.9%
    7. Energy10.7%
    8. Materials Science10.6%
    9. Mathematics00.2%
    10. Chemical Engineering00.1%
    1. Biochemistry, Genetics and Molecular Biology31.4%
    2. Agricultural and Biological Sciences00.2%
    1. Medicine10.7%
    2. Health Professions00.2%
    1. Economics, Econometrics and Finance00.2%
    2. Business, Management and Accounting00.1%
    3. Arts and Humanities00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 0.33× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.92× its world share, 1 worksBiochemistry, Geneti…Chemistry: 2.61× its world share, 1 worksChemistryComputer Science: 0.72× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 16.58× its world share, 4 worksEarth and Planetary …Energy: 2.04× its world share, 0 worksEnergyEngineering: 2.56× its world share, 6 worksEngineeringEnvironmental Science: 3.21× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.19× its world share, 0 worksMaterials ScienceMedicine: 0.05× its world share, 0 worksMedicine1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 16.6×. Every wedge is a field page.

All 10 fields, with their numbers
  1. Earth and Planetary Sciences16.58×4 works
  2. Environmental Science3.21×2 works
  3. Chemistry2.61×1 works
  4. Engineering2.56×6 works
  5. Energy2.04×0 works
  6. Biochemistry, Genetics and Molecular Biology0.92×1 works
  7. Computer Science0.72×1 works
  8. Agricultural and Biological Sciences0.33×0 works
  9. Materials Science0.19×0 works
  10. Medicine0.05×0 works

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

Ranked on the quality score, C. Kierdorf, Ingrid Magnus and Bjorn Ursin lead among researchers whose main affiliation is Applied Petroleum Technology (Norway).

  1. 1 C. Kierdorf Norway · #3,957,287 worldwide 21 citations · 18 works
  2. 2 Ingrid Magnus Norway · #4,688,318 worldwide 158 citations · 20 works
  3. 3 Bjorn Ursin Norway · #4,890,200 worldwide 104 citations · 23 works
All ranked researchers at Applied Petroleum Technology (Norway)

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

The most cited paper from Applied Petroleum Technology (Norway) is "Earth geography from 500 to 400 million years ago: a faunal and palaeomagnetic review" (L. R. M. Cocks, Trond Helge Torsvik, 2002), with 778 citations. Next come "Earth geography from 400 to 250 Ma: a palaeomagnetic, faunal and facies review" (418) and "COMPUTATIONAL ASPECTS OF THE CHOICE OF OPERATOR AND SAMPLING INTERVAL FOR NUMERICAL DIFFERENTIATION IN LARGE‐SCALE SIMULATION OF WAVE PHENOMENA*" (378).

Most cited papers
#PaperReleasedCitations
1 Earth geography from 500 to 400 million years ago: a faunal and palaeomagnetic review L. R. M. Cocks, Trond Helge Torsvik · Journal of the Geological Society Dec 2002 778
2 Earth geography from 400 to 250 Ma: a palaeomagnetic, faunal and facies review Trond Helge Torsvik, L. Robin M. Cocks · Journal of the Geological Society Jul 2004 418
3 COMPUTATIONAL ASPECTS OF THE CHOICE OF OPERATOR AND SAMPLING INTERVAL FOR NUMERICAL DIFFERENTIATION IN LARGE‐SCALE SIMULATION OF WAVE PHENOMENA* Olav Holberg · Geophysical Prospecting Jul 1987 378
4 Siberia, the wandering northern terrane, and its changing geography through the Palaeozoic L. Robin M. Cocks, Trond Helge Torsvik · Earth-Science Reviews 16 Feb 2007 333
5 Episodic Precambrian subduction Craig O’Neill, A. Lenardic, Louis N. Moresi et al. · Earth and Planetary Science Letters 27 Aug 2007 301
All 60 most cited papers, with filters and sorting

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

By fractional works in all years, weighted toward what it does more of than the world: Geophysical Imaging, Inverse Problems, Full-Waveform Tomography, Seismic Waveform Inversion, Tomography, Seismic Noise, Surface Wave and Hydraulic Fracturing.

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

Size is fractional works in all years 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. Geophysical Imaging31▲ 233×2 topics
  2. Inverse Problems30▲ 151×2 topics
  3. Full-Waveform Tomography30▲ 345×1 topic
  4. Seismic Waveform Inversion30▲ 345×1 topic
  5. Tomography23▲ 45×3 topics
  6. Seismic Noise21▲ 238×1 topic
  7. Surface Wave21▲ 238×1 topic
  8. Hydraulic Fracturing16▲ 74×2 topics
  9. Fracture Propagation15▲ 132×1 topic
  10. Shale Gas Reservoirs15▲ 132×1 topic
  11. Non-Destructive Testing11▲ 51×2 topics
  12. Shale Gas11▲ 44×2 topics
  13. Tectonics10▲ 33×3 topics
  14. Pore Structure10▲ 49×2 topics
  15. Geophysical Surveys10▲ 72×2 topics
  16. CO2 Sequestration9▲ 36×4 topics
  17. Gas Permeability9▲ 52×1 topic
  18. Mudstones9▲ 68×1 topic
  19. Ground-Penetrating Radar9▲ 110×1 topic
  20. Sedimentology9▲ 110×1 topic
  21. Continental Margin8▲ 67×2 topics
  22. Crustal Structure8▲ 67×2 topics
  23. Nanoparticles8▲ 3.3×4 topics
  24. Vibration Analysis8▲ 14×3 topics
  25. Optimization8▲ 7.7×2 topics
  26. Rheological Properties8▲ 26×3 topics
  27. Drilling Fluids8▲ 78×1 topic
  28. Well Integrity8▲ 78×1 topic
  29. Data Assimilation7▲ 22×1 topic
  30. Ensemble Kalman Filter7▲ 34×1 topic
  31. Plate Tectonics7▲ 17×3 topics
  32. Petroleum6▲ 60×2 topics
  33. Arctic5▲ 24×2 topics
  34. geology4▲ 88×1 topic
  35. sedimentary basins4▲ 88×1 topic
  36. Methane Oxidation4▲ 31×2 topics
  37. Anaerobic4▲ 36×1 topic
  38. Electrical Resistivity Tomography4▲ 72×1 topic
  39. Magnetotelluric Imaging4▲ 72×1 topic
  40. Marine Sediments4▲ 29×2 topics

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

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

Hydrocarbon exploration …2Hydrocarbon exploration and reservoir analysis: 2 fractional worksHydraulic Fracturing and Reservoir Analysis: 1 fractional worksGeological formations and processes: 1 fractional worksDrilling and Well Engineering: 1 fractional worksAtmospheric and Environmental Gas Dynamics: 1 fractional worksGeological Studies and Exploration: 1 fractional worksMethane Hydrates and Rel…0Methane Hydrates and Related Phenomena: 0 fractional worksSeismic Imaging and Inversion Techniques: 0 fractional worksPetroleum Processing and Analysis: 0 fractional worksSeismic Waves and Analysis: 0 fractional works
Mechanics of MaterialsMechanical EngineeringEarth-Surface ProcessesOcean Engineering5 others

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

  1. 1 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 2 works
  2. 2 Hydraulic Fracturing and Reservoir Analysis Mechanical Engineering 1 works
  3. 3 Geological formations and processes Earth-Surface Processes 1 works
  4. 4 Drilling and Well Engineering Ocean Engineering 1 works
  5. 5 Atmospheric and Environmental Gas Dynamics Global and Planetary Change 1 works
  6. 6 Geological Studies and Exploration Geology 1 works
  7. 7 Methane Hydrates and Related Phenomena Environmental Chemistry 0 works
  8. 8 Seismic Imaging and Inversion Techniques Geophysics 0 works
  9. 9 Petroleum Processing and Analysis Analytical Chemistry 0 works
  10. 10 Seismic Waves and Analysis Geophysics 0 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 available20.5%not open79.5%

World: 40% of research is openly available.

with international co-authors30.1%domestic only69.9%

World: 18% is written across borders.

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

Output in 2022-2025 was 19% lower 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 Applied Petroleum Technology (Norway) as a percentage of every work published that year, 0.000032% in 2024.

still counting0.00050%0.0010%Applied Petroleum Technology (Norway)0.000041% in 20251990200020102020

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

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Applied Petroleum Technology (Norway) on Science Explorer

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