Class information for:
Level 1: SHALE GAS//JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING//LONGMAXI FORMATION

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES 1953906
123 3       ENGINEERING, GEOLOGICAL//JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING//ENGINEERING, PETROLEUM 69565
369 2             ENGINEERING, PETROLEUM//PETR ENGN//JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 17780
3530 1                   SHALE GAS//JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING//LONGMAXI FORMATION 1992

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SHALE GAS authKW 2088830 16% 41% 323
2 JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING journal 608155 14% 14% 282
3 LONGMAXI FORMATION authKW 481252 2% 89% 34
4 SHALE GAS RESERVOIR authKW 457186 2% 85% 34
5 TIGHT OIL authKW 438806 2% 62% 45
6 SHALE authKW 370674 6% 20% 116
7 GAS SHALE authKW 338367 2% 58% 37
8 TIGHT GAS authKW 245453 2% 52% 30
9 PETROLEUM EXPLORATION AND DEVELOPMENT journal 224932 4% 16% 87
10 LONGMAXI SHALE authKW 222466 1% 94% 15

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Engineering, Petroleum 182834 31% 2% 609
2 Energy & Fuels 63120 58% 0% 1147
3 Geosciences, Multidisciplinary 15257 32% 0% 647
4 Engineering, Chemical 12129 33% 0% 658
5 Geochemistry & Geophysics 784 6% 0% 122
6 Geology 583 3% 0% 51
7 Mining & Mineral Processing 442 2% 0% 33
8 Engineering, Geological 389 2% 0% 36
9 Nanoscience & Nanotechnology 71 3% 0% 62
10 Mineralogy 21 1% 0% 13

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 UNCONVENT NAT GAS 214384 2% 37% 37
2 UNCONVENT OIL GAS RENEWABLE ENERGY 190353 1% 63% 19
3 SHALE GAS EXPLORAT EVALUAT 187335 1% 79% 15
4 STATE PETR OURCES PROSPECTING 176191 5% 11% 101
5 SHALE GAS EXPLORAT ASSESSMENT 142373 1% 75% 12
6 MARINE ERVOIR EVOLUT HYDROCARBON ABU 119890 1% 63% 12
7 UNCONVENT GAS 116489 0% 82% 9
8 PETR ENGN 104696 10% 3% 207
9 STATE OIL GAS ERVOIR GEOL EXPLOITA 103319 5% 6% 104
10 PETR EXPLORAT DEV 95340 4% 8% 79

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 608155 14% 14% 282
2 PETROLEUM EXPLORATION AND DEVELOPMENT 224932 4% 16% 87
3 SPE RESERVOIR EVALUATION & ENGINEERING 92507 4% 7% 82
4 INTERNATIONAL JOURNAL OF COAL GEOLOGY 62116 5% 4% 100
5 MARINE AND PETROLEUM GEOLOGY 55262 5% 3% 101
6 SPE JOURNAL 50996 3% 5% 66
7 JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 48911 5% 3% 106
8 AAPG BULLETIN 44057 4% 4% 74
9 ENERGY EXPLORATION & EXPLOITATION 27561 2% 5% 34
10 INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION 27219 2% 6% 30

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 SHALE GAS 2088830 16% 41% 323 Search SHALE+GAS Search SHALE+GAS
2 LONGMAXI FORMATION 481252 2% 89% 34 Search LONGMAXI+FORMATION Search LONGMAXI+FORMATION
3 SHALE GAS RESERVOIR 457186 2% 85% 34 Search SHALE+GAS+RESERVOIR Search SHALE+GAS+RESERVOIR
4 TIGHT OIL 438806 2% 62% 45 Search TIGHT+OIL Search TIGHT+OIL
5 SHALE 370674 6% 20% 116 Search SHALE Search SHALE
6 GAS SHALE 338367 2% 58% 37 Search GAS+SHALE Search GAS+SHALE
7 TIGHT GAS 245453 2% 52% 30 Search TIGHT+GAS Search TIGHT+GAS
8 LONGMAXI SHALE 222466 1% 94% 15 Search LONGMAXI+SHALE Search LONGMAXI+SHALE
9 MARINE SHALE 190488 1% 71% 17 Search MARINE+SHALE Search MARINE+SHALE
10 ORGANIC PORES 189839 1% 100% 12 Search ORGANIC+PORES Search ORGANIC+PORES

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


rank cluster_id2 link
1 13499 WELL TESTING//THRESHOLD PRESSURE GRADIENT//ENGINEERING, PETROLEUM
2 3330 COALBED METHANE//INTERNATIONAL JOURNAL OF COAL GEOLOGY//ENGN COAL GAS CONTROL
3 7995 HYDRAULIC FRACTURING//HYDRAULIC FRACTURE//NATURAL FRACTURE
4 38244 HOUSTON P SURE SAMPLING//ATLAS WIRELINE SERV//BASALTIC RESERVOIR
5 17691 SPONTANEOUS IMBIBITION//COUNTERCURRENT IMBIBITION//FRACTURED RESERVOIR
6 9673 SHALE GAS//HYDRAULIC FRACTURING//FRACKING
7 13093 OVERPRESSURE//DISEQUILIBRIUM COMPACTION//ABNORMAL PRESSURE
8 19855 NON DARCY FLOW//GAS CONDENSATE//GAS WETTING
9 148 ORGANIC GEOCHEMISTRY//SOURCE ROCK//THERMAL MATURITY
10 13196 HYDRAULIC FLOW UNIT//WELL LOGS//WELL LOG DATA

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