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 |
| 16335 | 1 | SPE DRILLING & COMPLETION//CUTTINGS TRANSPORT//HOLE CLEANING | 687 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | SPE DRILLING & COMPLETION | journal | 870454 | 17% | 16% | 116 |
| 2 | CUTTINGS TRANSPORT | authKW | 636942 | 3% | 73% | 19 |
| 3 | HOLE CLEANING | authKW | 352877 | 1% | 77% | 10 |
| 4 | PIPE ROTATION | authKW | 321123 | 1% | 100% | 7 |
| 5 | DRILLING WELL MODELING GRP | address | 275248 | 1% | 100% | 6 |
| 6 | MANAGED PRESSURE DRILLING | authKW | 185783 | 1% | 45% | 9 |
| 7 | CUTTINGS BED | authKW | 183499 | 1% | 100% | 4 |
| 8 | OPEN HOLE EXTENDED REACH LIMIT | authKW | 183499 | 1% | 100% | 4 |
| 9 | SURGE PRESSURE | authKW | 183499 | 1% | 100% | 4 |
| 10 | ENGINEERING, PETROLEUM | WoSSC | 176573 | 51% | 1% | 351 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Engineering, Petroleum | 176573 | 51% | 1% | 351 |
| 2 | Energy & Fuels | 12210 | 43% | 0% | 298 |
| 3 | Engineering, Chemical | 4108 | 33% | 0% | 225 |
| 4 | Mechanics | 492 | 10% | 0% | 70 |
| 5 | Engineering, Mechanical | 181 | 6% | 0% | 42 |
| 6 | Automation & Control Systems | 99 | 3% | 0% | 20 |
| 7 | Engineering, General | 94 | 3% | 0% | 23 |
| 8 | Thermodynamics | 88 | 3% | 0% | 24 |
| 9 | Mining & Mineral Processing | 24 | 1% | 0% | 5 |
| 10 | Geosciences, Multidisciplinary | 20 | 3% | 0% | 22 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | DRILLING WELL MODELING GRP | 275248 | 1% | 100% | 6 |
| 2 | WCTC | 137624 | 0% | 100% | 3 |
| 3 | PERFORATING | 104853 | 1% | 57% | 4 |
| 4 | INTELLIGENT WELL CONSTRUCT | 91749 | 0% | 100% | 2 |
| 5 | OIL GAS ENGN STUDIES | 91749 | 0% | 100% | 2 |
| 6 | PROGRAM DRILLING MAINTENANCE OIL WELLS | 91749 | 0% | 100% | 2 |
| 7 | WELL TECHNOL SECT | 91749 | 0% | 100% | 2 |
| 8 | DRILLING PROJECTS | 88214 | 1% | 38% | 5 |
| 9 | JEOL UK DO BRANCH | 61165 | 0% | 67% | 2 |
| 10 | PETR ENGN | 60018 | 13% | 1% | 92 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | SPE DRILLING & COMPLETION | 870454 | 17% | 16% | 116 |
| 2 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 45516 | 9% | 2% | 60 |
| 3 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING | 30311 | 5% | 2% | 37 |
| 4 | JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME | 26338 | 5% | 2% | 31 |
| 5 | JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY | 20745 | 4% | 2% | 27 |
| 6 | OIL & GAS JOURNAL | 20359 | 5% | 1% | 35 |
| 7 | PETROLEUM SCIENCE AND TECHNOLOGY | 13276 | 4% | 1% | 30 |
| 8 | INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY | 12795 | 1% | 3% | 10 |
| 9 | JOURNAL OF PETROLEUM TECHNOLOGY | 12636 | 3% | 2% | 18 |
| 10 | PETROLEUM SCIENCE | 9866 | 2% | 2% | 12 |
Author Key Words |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass | LCSH search | Wikipedia search |
|---|---|---|---|---|---|---|---|
| 1 | CUTTINGS TRANSPORT | 636942 | 3% | 73% | 19 | Search CUTTINGS+TRANSPORT | Search CUTTINGS+TRANSPORT |
| 2 | HOLE CLEANING | 352877 | 1% | 77% | 10 | Search HOLE+CLEANING | Search HOLE+CLEANING |
| 3 | PIPE ROTATION | 321123 | 1% | 100% | 7 | Search PIPE+ROTATION | Search PIPE+ROTATION |
| 4 | MANAGED PRESSURE DRILLING | 185783 | 1% | 45% | 9 | Search MANAGED+PRESSURE+DRILLING | Search MANAGED+PRESSURE+DRILLING |
| 5 | CUTTINGS BED | 183499 | 1% | 100% | 4 | Search CUTTINGS+BED | Search CUTTINGS+BED |
| 6 | OPEN HOLE EXTENDED REACH LIMIT | 183499 | 1% | 100% | 4 | Search OPEN+HOLE+EXTENDED+REACH+LIMIT | Search OPEN+HOLE+EXTENDED+REACH+LIMIT |
| 7 | SURGE PRESSURE | 183499 | 1% | 100% | 4 | Search SURGE+PRESSURE | Search SURGE+PRESSURE |
| 8 | AIR DRILLING | 165144 | 1% | 60% | 6 | Search AIR+DRILLING | Search AIR+DRILLING |
| 9 | UNDERBALANCED DRILLING | 142905 | 1% | 35% | 9 | Search UNDERBALANCED+DRILLING | Search UNDERBALANCED+DRILLING |
| 10 | AERATED MUD | 137624 | 0% | 100% | 3 | Search AERATED+MUD | Search AERATED+MUD |
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 |