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Company · Algiers · Algeria

Sonatrach (Algeria)

In research, Sonatrach (Algeria) stands highest in Physical Sciences (#7,375 of 10,670 worldwide), 2022-now.

sonatrach.comROR OpenAlex
World rank, 2022-now
#15,438
of 22,385 · #12,168 all time
Rank in Algeria
#67
of 79
Research works
702
◆ 2% vs 2018-21
Citations
5.7k
8.2 per fractional work
Top-10% rate
8.2%
all institutions 10.0%
vs its own fields
0.96×
1.00× is exactly expected
Open access
22%
world 40%
International
41%
world 18%
Sonatrach (Algeria)

What is Sonatrach (Algeria) 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 #7,375 of 10,670 9.3%84 #7099

Each strip is that field's whole ranked pool, with the notch where Sonatrach (Algeria) 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 Sonatrach (Algeria) work in?

In 2022-now, 77% of research at Sonatrach (Algeria) is in Physical Sciences, 9% in Social Sciences. Its largest fields are Engineering (41%), Environmental Science (11%), Earth and Planetary Sciences (9%). It does 1.9× the world's share of Physical Sciences.

Physical Sciences: 100 fractional works · 76.5% of its workEngineering: 54 fractional works · 41.3% of its workOcean Engineering: 15 fractional works · 11.4% of its workMechanical Engineering: 12 fractional works · 9.6% of its workMechanics of Materials: 6 fractional works · 4.8% of its workBiomedical Engineering: 4 fractional works · 3.4% of its workControl and Systems Engineering: 4 fractional works · 3.4% of its workElectrical and Electronic Engineering: 4 fractional works · 2.7% of its workComputational Mechanics: 2 fractional works · 1.9% of its workCivil and Structural Engineering: 2 fractional works · 1.5% of its workAerospace Engineering: 2 fractional works · 1.3% of its workAutomotive Engineering: 1 fractional works · 0.5% of its workBuilding and Construction: 0 fractional works · 0.4% of its workSafety, Risk, Reliability and Quality: 0 fractional works · 0.3% of its workEnvironmental Science: 14 fractional works · 10.7% of its workEnvironmental Engineering: 3 fractional works · 2.4% of its workPollution: 2 fractional works · 1.6% of its workWater Science and Technology: 2 fractional works · 1.4% of its workEnvironmental Chemistry: 1 fractional works · 1.1% of its workManagement, Monitoring, Policy and Law: 1 fractional works · 1.1% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 1.0% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.9% of its workGlobal and Planetary Change: 1 fractional works · 0.9% of its workEcology: 0 fractional works · 0.3% of its workEarth and Planetary Sciences: 11 fractional works · 8.6% of its workGeophysics: 8 fractional works · 6.0% of its workPaleontology: 1 fractional works · 0.9% of its workOceanography: 1 fractional works · 0.6% of its workEarth-Surface Processes: 1 fractional works · 0.4% of its workGeochemistry and Petrology: 0 fractional works · 0.3% of its workAtmospheric Science: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workComputer Science: 6 fractional works · 4.4% of its workArtificial Intelligence: 3 fractional works · 2.7% of its workComputer Vision and Pattern Recognition: 1 fractional works · 0.6% of its workComputer Networks and Communications: 1 fractional works · 0.5% of its workInformation Systems: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMaterials Science: 5 fractional works · 4.0% of its workMaterials Chemistry: 3 fractional works · 2.5% of its workMetals and Alloys: 1 fractional works · 0.5% of its workPolymers and Plastics: 1 fractional works · 0.5% of its workBiomaterials: 1 fractional works · 0.4% of its workEnergy: 4 fractional works · 3.0% of its workRenewable Energy, Sustainability and the Environment: 3 fractional works · 2.3% of its workEnergy Engineering and Power Technology: 1 fractional works · 0.7% of its workChemistry: 2 fractional works · 1.8% of its workAnalytical Chemistry: 1 fractional works · 0.8% of its workOrganic Chemistry: 1 fractional works · 0.5% of its workInorganic Chemistry: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workChemical Engineering: 2 fractional works · 1.4% of its workCatalysis: 1 fractional works · 0.5% of its workFluid Flow and Transfer Processes: 1 fractional works · 0.5% of its workBioengineering: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysics and Astronomy: 1 fractional works · 1.0% of its workCondensed Matter Physics: 0 fractional works · 0.4% of its workStatistical and Nonlinear Physics: 0 fractional works · 0.4% of its workNuclear and High Energy Physics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMathematics: 0 fractional works · 0.3% of its workSocial Sciences: 12 fractional works · 9.4% of its workSocial Sciences: 6 fractional works · 4.8% of its workPolitical Science and International Relations: 2 fractional works · 1.5% of its workSociology and Political Science: 2 fractional works · 1.4% of its workLaw: 1 fractional works · 0.5% of its workEducation: 1 fractional works · 0.4% of its workUrban Studies: 0 fractional works · 0.3% of its workCommunication: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.4% of its workArts and Humanities: 3 fractional works · 2.3% of its workPhilosophy: 2 fractional works · 1.4% of its workLiterature and Literary Theory: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.7% of its workDecision Sciences: 1 fractional works · 0.8% of its workStatistics, Probability and Uncertainty: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.2% of its workPsychology: 1 fractional works · 0.5% of its workClinical Psychology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workBusiness, Management and Accounting: 1 fractional works · 0.5% of its workManagement Information Systems: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 1 fractional works · 0.5% of its workEconomics and Econometrics: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workLife Sciences: 9 fractional works · 7.2% of its workAgricultural and Biological Sciences: 5 fractional works · 3.5% of its workEcology, Evolution, Behavior and Systematics: 1 fractional works · 1.1% of its workFood Science: 1 fractional works · 0.8% of its workSoil Science: 1 fractional works · 0.8% of its workPlant Science: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.4% of its workBiochemistry, Genetics and Molecular Biology: 3 fractional works · 2.4% of its workMolecular Biology: 2 fractional works · 1.3% of its workGenetics: 1 fractional works · 0.5% of its workCancer Research: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNeuroscience: 1 fractional works · 0.6% of its workNeurology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 1 fractional works · 0.5% of its workImmunology: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.2% of its workHealth Sciences: 9 fractional works · 6.8% of its workMedicine: 4 fractional works · 3.4% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.8% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.8% of its workObstetrics and Gynecology: 1 fractional works · 0.4% of its workEmergency Medicine: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 1.0% of its workHealth Professions: 4 fractional works · 3.3% of its workGeneral Health Professions: 4 fractional works · 2.7% of its workSpeech and Hearing: 0 fractional works · 0.3% of its workRadiological and Ultrasound Technology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.1% of its workNursing: 0 fractional works · 0.1% of its workALL ITS WORKSonatrach(Algeria)130fractional works, 2022-now
Life Sciences7%Physical Sciences77%Health Sciences7%Social Sciences9%

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 25 fields, with their numbers
    1. Engineering5441.3%
    2. Environmental Science1410.7%
    3. Earth and Planetary Sciences118.6%
    4. Computer Science64.4%
    5. Materials Science54.0%
    6. Energy43.0%
    7. Chemistry21.8%
    8. Chemical Engineering21.4%
    9. Physics and Astronomy11.0%
    10. Mathematics00.3%
    1. Social Sciences64.8%
    2. Arts and Humanities32.3%
    3. Decision Sciences10.8%
    4. Psychology10.5%
    5. Business, Management and Accounting10.5%
    6. Economics, Econometrics and Finance10.5%
    1. Agricultural and Biological Sciences53.5%
    2. Biochemistry, Genetics and Molecular Biology32.4%
    3. Neuroscience10.6%
    4. Immunology and Microbiology10.5%
    5. Pharmacology, Toxicology and Pharmaceutics00.2%
    1. Medicine43.4%
    2. Health Professions43.3%
    3. Veterinary00.1%
    4. Nursing00.1%
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: 0.73× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.46× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.48× its world share, 1 worksImmunology and Micro…Neuroscience: 0.34× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.62× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 3.99× its world share, 2 worksChemical EngineeringChemistry: 1.17× its world share, 2 worksChemistryComputer Science: 0.56× its world share, 6 worksComputer ScienceEarth and Planetary Sciences: 5.50× its world share, 11 worksEarth and Planetary …Energy: 3.28× its world share, 4 worksEnergyEngineering: 2.76× its world share, 54 worksEngineeringEnvironmental Science: 2.15× its world share, 14 worksEnvironmental ScienceMaterials Science: 1.14× its world share, 5 worksMaterials ScienceMathematics: 0.22× its world share, 0 worksMathematicsPhysics and Astronomy: 0.47× its world share, 1 worksPhysics and AstronomyHealth Professions: 1.26× its world share, 4 worksHealth ProfessionsMedicine: 0.17× its world share, 4 worksMedicineNursing: 0.13× its world share, 0 worksNursingVeterinary: 0.63× its world share, 0 worksVeterinaryArts and Humanities: 0.81× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.16× its world share, 1 worksBusiness, Management…Decision Sciences: 0.80× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.22× its world share, 1 worksEconomics, Econometr…Psychology: 0.17× its world share, 1 worksPsychologySocial Sciences: 0.38× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 5.5×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Earth and Planetary Sciences5.50×11 works
  2. Chemical Engineering3.99×2 works
  3. Energy3.28×4 works
  4. Engineering2.76×54 works
  5. Environmental Science2.15×14 works
  6. Health Professions1.26×4 works
  7. Chemistry1.17×2 works
  8. Materials Science1.14×5 works
  9. Arts and Humanities0.81×3 works
  10. Decision Sciences0.80×1 works
  11. Agricultural and Biological Sciences0.73×4 works
  12. Veterinary0.63×0 works
  13. Pharmacology, Toxicology and Pharmaceutics0.62×0 works
  14. Computer Science0.56×6 works
  15. Immunology and Microbiology0.48×1 works
  16. Physics and Astronomy0.47×1 works
  17. Biochemistry, Genetics and Molecular Biology0.46×3 works
  18. Social Sciences0.38×6 works
  19. Neuroscience0.34×1 works
  20. Mathematics0.22×0 works
  21. Economics, Econometrics and Finance0.22×1 works
  22. Medicine0.17×4 works
  23. Psychology0.17×1 works
  24. Business, Management and Accounting0.16×1 works
  25. Nursing0.13×0 works

Who are the top researchers at Sonatrach (Algeria)?

Ranked on the quality score, Menad Nait Amar, Rabah Bracène and Hakim Djema lead among researchers whose main affiliation is Sonatrach (Algeria).

  1. 1 Menad Nait Amar Algeria · #265,247 worldwide 3k citations · 108 works
  2. 2 Rabah Bracène Algeria · #695,128 worldwide 2.2k citations · 42 works
  3. 3 Hakim Djema Algeria · #1,216,764 worldwide 283 citations · 25 works
  4. 4 Walter Raleigh Algeria · #2,228,457 worldwide 242 citations · 69 works
  5. 5 W. H. Hadow Algeria · #2,479,432 worldwide 102 citations · 40 works
  6. 6 Aissa walid BENAROUS Algeria · #3,017,036 worldwide 0 citations · 21 works
  7. 7 Mohamed Khodja Algeria · #3,548,491 worldwide 2k citations · 82 works
  8. 8 Naiem Barakat Algeria · #3,606,558 worldwide 99 citations · 18 works
  9. 9 Mourad Medaouri Algeria · #3,995,521 worldwide 213 citations · 19 works
  10. 10 El Mouatez Billah Messini Algeria · #4,178,584 worldwide 70 citations · 16 works
All ranked researchers at Sonatrach (Algeria)

What are the most cited papers from Sonatrach (Algeria)?

The most cited paper from Sonatrach (Algeria) is "Targeting immunogenic cell stress and death for cancer therapy" (Lorenzo Galluzzi, Emma Guilbaud, Darby R. Schmidt et al., 2024), with 527 citations. Next come "Modification of epoxy resin using reactive liquid (ATBN) rubber" (421) and "The In Salah CO2 Storage Project: Lessons Learned and Knowledge Transfer" (360).

Most cited papers
#PaperReleasedCitations
1 Targeting immunogenic cell stress and death for cancer therapy Lorenzo Galluzzi, Emma Guilbaud, Darby R. Schmidt et al. · Nature Reviews Drug Discovery ReviewOpen access 15 Apr 2024 527
2 Modification of epoxy resin using reactive liquid (ATBN) rubber Nourdine Chikhi, S. Fellahi, Mohamed Bakar · European Polymer Journal Feb 2002 421
3 The In Salah CO2 Storage Project: Lessons Learned and Knowledge Transfer Philip Ringrose, Allan Mathieson, Iain Washington Wright et al. · Energy Procedia Conference paperOpen access 2013 360
4 Shale problems and water-based drilling fluid optimisation in the Hassi Messaoud Algerian oil field Mohamed Khodja, Mohamed Khodja, Jean Paul Canselier et al. · Applied Clay Science Open access 21 Jun 2010 265
5 Alpine inversion of the North African margin and delamination of its continental lithosphere François Roure, Piero Casero, Belkacem Addoum · Tectonics 11 Apr 2012 213
All 60 most cited papers, with filters and sorting

Which keywords describe research at Sonatrach (Algeria)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Optimization, CO2 Sequestration, Hydraulic Fracturing, Uncertainty Quantification, Shale Gas, Data Assimilation, Ensemble Kalman Filter 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 Learning9▲ 2.1×20 topics
  2. Optimization8▲ 13×6 topics
  3. Nanoparticles6▲ 3.6×9 topics
  4. CO2 Sequestration6▲ 22×3 topics
  5. Hydraulic Fracturing5▲ 38×2 topics
  6. Uncertainty Quantification5▲ 52×2 topics
  7. Data Assimilation5▲ 24×1 topic
  8. Ensemble Kalman Filter5▲ 39×1 topic
  9. Shale Gas5▲ 33×2 topics
  10. Pore Structure5▲ 32×2 topics
  11. Renewable Energy5▲ 2.6×15 topics
  12. Fracture Propagation5▲ 63×1 topic
  13. Shale Gas Reservoirs5▲ 63×1 topic
  14. Gas Permeability5▲ 38×1 topic
  15. Mudstones5▲ 51×1 topic
  16. Vibration Analysis4▲ 12×5 topics
  17. Heat Transfer4▲ 6.3×11 topics
  18. Rheological Properties4▲ 17×4 topics
  19. Porous Media4▲ 22×3 topics
  20. Energy Efficiency4▲ 3.0×9 topics
  21. Drilling Fluids4▲ 53×1 topic
  22. Nanofluids4▲ 34×2 topics
  23. Well Integrity4▲ 53×1 topic
  24. Subduction4▲ 36×3 topics
  25. Pore-scale Modeling3▲ 69×1 topic
  26. Surfactants3▲ 27×2 topics
  27. X-ray Computed Tomography3▲ 69×1 topic
  28. Microbial Communities3▲ 5.9×4 topics
  29. Tectonic Evolution3▲ 93×3 topics
  30. Mediterranean3▲ 22×2 topics
  31. Fault Diagnosis2▲ 13×3 topics
  32. Turbulent Flows2▲ 20×3 topics
  33. Western Mediterranean2▲ 193×1 topic
  34. geodynamics2▲ 193×1 topic
  35. Artificial Lift Systems2▲ 64×1 topic
  36. Electric Submersible Pumps2▲ 64×1 topic
  37. Predictive Maintenance2▲ 24×2 topics
  38. Supply Chain2▲ 7.6×2 topics
  39. Biodegradation2▲ 14×2 topics
  40. Reactive Transport2▲ 26×2 topics

Which research topics does Sonatrach (Algeria) publish most on?

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

Reservoir Engineering and Simulation Methods: 5 fractional worksHydraulic Fracturing and Reservoir Analysis: 5 fractional worksHydrocarbon exploration …5Hydrocarbon exploration and reservoir analysis: 5 fractional worksDrilling and Well Engine…4Drilling and Well Engineering: 4 fractional worksEnhanced Oil Recovery Techniques: 3 fractional worksGeological and Geophysical Studies Worldwide: 2 fractional worksOil and Gas Production T…2Oil and Gas Production Techniques: 2 fractional worksCO2 Sequestration and Geologic Interactions: 2 fractional worksAging, Elder Care, and Social Issues: 2 fractional worksHealth, Medicine and Society: 2 fractional works
Ocean EngineeringMechanical EngineeringMechanics of MaterialsGeophysics2 others

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

  1. 1 Reservoir Engineering and Simulation Methods Ocean Engineering 5 works
  2. 2 Hydraulic Fracturing and Reservoir Analysis Mechanical Engineering 5 works
  3. 3 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 5 works
  4. 4 Drilling and Well Engineering Ocean Engineering 4 works
  5. 5 Enhanced Oil Recovery Techniques Ocean Engineering 3 works
  6. 6 Geological and Geophysical Studies Worldwide Geophysics 2 works
  7. 7 Oil and Gas Production Techniques Ocean Engineering 2 works
  8. 8 CO2 Sequestration and Geologic Interactions Environmental Engineering 2 works
  9. 9 Aging, Elder Care, and Social Issues General Health Professions 2 works
  10. 10 Health, Medicine and Society General Health Professions 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 available21.7%not open78.3%

World: 40% of research is openly available.

with international co-authors41.1%domestic only58.9%

World: 18% is written across borders.

How has Sonatrach (Algeria)'s research output changed?

Output in 2022-2025 was 2% 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 Sonatrach (Algeria) as a percentage of every work published that year, 0.00037% in 2024.

still counting0.0010%0.0020%Sonatrach (Algeria)0.00054% in 202519801990200020102020

Fractional works of Sonatrach (Algeria) 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 counting10%20%all institutions10.0% in 2025Sonatrach (Algeria)10.0% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 15.6% in 2021.

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