Class information for: |
Basic class information |
Hierarchy of classes |
The table includes all classes above and classes immediately below the current class. |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | LOST CIRCULATION | authKW | 623334 | 3% | 63% | 15 |
| 2 | SPE DRILLING & COMPLETION | journal | 472618 | 15% | 10% | 71 |
| 3 | WELLBORE STRENGTHENING | authKW | 414279 | 2% | 69% | 9 |
| 4 | FORMATION TESTING | authKW | 398941 | 1% | 100% | 6 |
| 5 | LOST CIRCULATION MATERIAL | authKW | 398941 | 1% | 100% | 6 |
| 6 | DRILL IN FLUID LOSS | authKW | 332451 | 1% | 100% | 5 |
| 7 | MUD FILTRATE INVASION | authKW | 277041 | 1% | 83% | 5 |
| 8 | LOSS CONTROL MATERIAL | authKW | 265961 | 1% | 100% | 4 |
| 9 | FORMATION DAMAGE | authKW | 264648 | 5% | 16% | 25 |
| 10 | MUD FILTRATE | authKW | 212767 | 1% | 80% | 4 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Engineering, Petroleum | 166460 | 60% | 1% | 283 |
| 2 | Energy & Fuels | 8290 | 43% | 0% | 204 |
| 3 | Geosciences, Multidisciplinary | 1828 | 23% | 0% | 111 |
| 4 | Engineering, Chemical | 904 | 19% | 0% | 91 |
| 5 | Geochemistry & Geophysics | 541 | 10% | 0% | 47 |
| 6 | Geology | 72 | 2% | 0% | 9 |
| 7 | Spectroscopy | 33 | 3% | 0% | 14 |
| 8 | Instruments & Instrumentation | 20 | 3% | 0% | 14 |
| 9 | Engineering, Geological | 8 | 1% | 0% | 3 |
| 10 | Materials Science, Characterization, Testing | 7 | 1% | 0% | 3 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | SAND MANAGEMENT SERV | 149601 | 1% | 75% | 3 |
| 2 | WELL TESTING CO | 132980 | 0% | 100% | 2 |
| 3 | PETR GEOSYST ENGN | 85932 | 7% | 4% | 33 |
| 4 | ABRAMSON PEDIAT NEUROL | 66490 | 0% | 100% | 1 |
| 5 | ACT AMONT TECHNOL DEV | 66490 | 0% | 100% | 1 |
| 6 | ASIAN SUPPLY BASE | 66490 | 0% | 100% | 1 |
| 7 | AUTOMACAO RUMENTACAO QUIM AALIT QUIMIOM | 66490 | 0% | 100% | 1 |
| 8 | BAKER HUGHES HOUSTON TECHNOL | 66490 | 0% | 100% | 1 |
| 9 | BAKER HUGHES NOVOSIBIRSK TECHNOL | 66490 | 0% | 100% | 1 |
| 10 | BAKER HUGHES NOVOSIBIRSK TECHNOL CENTER | 66490 | 0% | 100% | 1 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | SPE DRILLING & COMPLETION | 472618 | 15% | 10% | 71 |
| 2 | SPE RESERVOIR EVALUATION & ENGINEERING | 122467 | 10% | 4% | 46 |
| 3 | PETROPHYSICS | 100724 | 4% | 7% | 21 |
| 4 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 32326 | 9% | 1% | 42 |
| 5 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING | 30852 | 7% | 1% | 31 |
| 6 | SPE FORMATION EVALUATION | 29743 | 2% | 6% | 8 |
| 7 | RUSSIAN GEOLOGY AND GEOPHYSICS | 16890 | 4% | 1% | 19 |
| 8 | JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY | 16500 | 4% | 1% | 20 |
| 9 | JOURNAL OF PETROLEUM TECHNOLOGY | 12724 | 3% | 1% | 15 |
| 10 | SPE JOURNAL | 12596 | 3% | 1% | 16 |
Author Key Words |
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 |