Class information for: |
Basic class information |
Hierarchy of classes |
The table includes all classes above and classes immediately below the current class. |
| Cluster id | Level | Cluster label | #P |
|---|---|---|---|
| 8 | 4 | POLYMER SCIENCE//CHEMISTRY, PHYSICAL//MATERIALS SCIENCE, MULTIDISCIPLINARY | 1554940 |
| 584 | 3 | NANOPORE//SPE DRILLING & COMPLETION//DRAG REDUCTION | 15564 |
| 3172 | 2 | SPE DRILLING & COMPLETION//ENGINEERING, PETROLEUM//DRILL STRING | 2325 |
| 24031 | 1 | CASING WEAR//CASING DESIGN//SPE DRILLING & COMPLETION | 349 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | CASING WEAR | authKW | 820956 | 3% | 91% | 10 |
| 2 | CASING DESIGN | authKW | 664973 | 3% | 82% | 9 |
| 3 | SPE DRILLING & COMPLETION | journal | 521591 | 18% | 9% | 64 |
| 4 | COLLAPSE STRENGTH | authKW | 385295 | 2% | 53% | 8 |
| 5 | ANNULAR PRESSURE BUILDUP | authKW | 376271 | 1% | 83% | 5 |
| 6 | CASING COLLAPSE | authKW | 361222 | 1% | 100% | 4 |
| 7 | DEEPWATER WELL | authKW | 361222 | 1% | 100% | 4 |
| 8 | SUSTAINED CASING PRESSURE | authKW | 361218 | 2% | 67% | 6 |
| 9 | DEFECTIVE CASING | authKW | 270916 | 1% | 100% | 3 |
| 10 | HF ERW | authKW | 270916 | 1% | 100% | 3 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Engineering, Petroleum | 72191 | 46% | 1% | 160 |
| 2 | Energy & Fuels | 4683 | 38% | 0% | 132 |
| 3 | Engineering, Chemical | 732 | 20% | 0% | 70 |
| 4 | Engineering, Mechanical | 450 | 12% | 0% | 43 |
| 5 | Engineering, Geological | 425 | 4% | 0% | 15 |
| 6 | Geosciences, Multidisciplinary | 254 | 11% | 0% | 38 |
| 7 | Materials Science, Characterization, Testing | 200 | 3% | 0% | 11 |
| 8 | Construction & Building Technology | 120 | 3% | 0% | 12 |
| 9 | Metallurgy & Metallurgical Engineering | 72 | 6% | 0% | 20 |
| 10 | Mining & Mineral Processing | 57 | 1% | 0% | 5 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | CNPC TUBULAR GOODS ENGN | 225748 | 3% | 25% | 10 |
| 2 | STATE OIL GAS ERVOIRS GEOL EXPLOIT | 162547 | 1% | 60% | 3 |
| 3 | CURRICULA PROGRAM COMPUTAT MECH | 90305 | 0% | 100% | 1 |
| 4 | DEEPWATER EXPLORAT DRILLING PROJECT | 90305 | 0% | 100% | 1 |
| 5 | DEV FAILURE ANAL | 90305 | 0% | 100% | 1 |
| 6 | DRILLING COMPET TECHNOL SERV | 90305 | 0% | 100% | 1 |
| 7 | DRILLING PROD ENGN TECHNOL CNPC | 90305 | 0% | 100% | 1 |
| 8 | DRILLING WELLS | 90305 | 0% | 100% | 1 |
| 9 | ENGN SPECIALIST GRP | 90305 | 0% | 100% | 1 |
| 10 | ENGN TECHNOL GAS PETROCHINA | 90305 | 0% | 100% | 1 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | SPE DRILLING & COMPLETION | 521591 | 18% | 9% | 64 |
| 2 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING | 50438 | 10% | 2% | 34 |
| 3 | JOURNAL OF PETROLEUM TECHNOLOGY | 19677 | 5% | 1% | 16 |
| 4 | SPE PRODUCTION & OPERATIONS | 11975 | 2% | 2% | 8 |
| 5 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 10963 | 6% | 1% | 21 |
| 6 | PETROLEUM EXPLORATION AND DEVELOPMENT | 10848 | 2% | 2% | 8 |
| 7 | JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 6577 | 4% | 1% | 14 |
| 8 | PETROLEUM ENGINEER INTERNATIONAL | 6449 | 0% | 7% | 1 |
| 9 | PETROLEUM SCIENCE | 4855 | 2% | 1% | 6 |
| 10 | OIL & GAS JOURNAL | 4703 | 3% | 0% | 12 |
Author Key Words |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass | LCSH search | Wikipedia search |
|---|---|---|---|---|---|---|---|
| 1 | CASING WEAR | 820956 | 3% | 91% | 10 | Search CASING+WEAR | Search CASING+WEAR |
| 2 | CASING DESIGN | 664973 | 3% | 82% | 9 | Search CASING+DESIGN | Search CASING+DESIGN |
| 3 | COLLAPSE STRENGTH | 385295 | 2% | 53% | 8 | Search COLLAPSE+STRENGTH | Search COLLAPSE+STRENGTH |
| 4 | ANNULAR PRESSURE BUILDUP | 376271 | 1% | 83% | 5 | Search ANNULAR+PRESSURE+BUILDUP | Search ANNULAR+PRESSURE+BUILDUP |
| 5 | CASING COLLAPSE | 361222 | 1% | 100% | 4 | Search CASING+COLLAPSE | Search CASING+COLLAPSE |
| 6 | DEEPWATER WELL | 361222 | 1% | 100% | 4 | Search DEEPWATER+WELL | Search DEEPWATER+WELL |
| 7 | SUSTAINED CASING PRESSURE | 361218 | 2% | 67% | 6 | Search SUSTAINED+CASING+PRESSURE | Search SUSTAINED+CASING+PRESSURE |
| 8 | DEFECTIVE CASING | 270916 | 1% | 100% | 3 | Search DEFECTIVE+CASING | Search DEFECTIVE+CASING |
| 9 | HF ERW | 270916 | 1% | 100% | 3 | Search HF+ERW | Search HF+ERW |
| 10 | PLASTICITY INSTABILITY INTERACTION | 270916 | 1% | 100% | 3 | Search PLASTICITY+INSTABILITY+INTERACTION | Search PLASTICITY+INSTABILITY+INTERACTION |
Core articles |
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c: (1) Number of references referring to publications in the class. (2) Share of total number of active references referring to publications in the class. (3) Age of the article. New articles get higher score than old articles. (4) Citation rate, normalized to year. |
Classes with closest relation at Level 1 |