Class information for:
Level 1: WELL TESTING//THRESHOLD PRESSURE GRADIENT//ENGINEERING, PETROLEUM

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
13499 1                   WELL TESTING//THRESHOLD PRESSURE GRADIENT//ENGINEERING, PETROLEUM 863

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 WELL TESTING authKW 539221 5% 38% 39
2 THRESHOLD PRESSURE GRADIENT authKW 471194 2% 65% 20
3 ENGINEERING, PETROLEUM WoSSC 350452 64% 2% 554
4 HORIZONTAL WELL authKW 307320 5% 19% 44
5 DYNAM SYST CONTROL DSC address 255630 1% 100% 7
6 INFLOW CONTROL DEVICES authKW 255630 1% 100% 7
7 PRESSURE BEHAVIOR authKW 211280 1% 64% 9
8 TYPE CURVES authKW 208649 2% 29% 20
9 FRACTURED HORIZONTAL WELL authKW 194753 1% 44% 12
10 PRESSURE TRANSIENT TESTING authKW 187808 1% 86% 6

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Engineering, Petroleum 350452 64% 2% 554
2 Energy & Fuels 29758 60% 0% 518
3 Engineering, Chemical 3882 29% 0% 247
4 Geosciences, Multidisciplinary 2856 22% 0% 188
5 Mechanics 367 8% 0% 70
6 Geology 250 3% 0% 22
7 Engineering, General 224 4% 0% 38
8 Mathematics, Interdisciplinary Applications 203 4% 0% 34
9 Limnology 27 1% 0% 7
10 Engineering, Geological 19 1% 0% 6

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 DYNAM SYST CONTROL DSC 255630 1% 100% 7
2 PROGRAMA INGN PETR 187808 1% 86% 6
3 GRP INVEST PRUEBAS POZOS 146074 0% 100% 4
4 PETR ENGN 135722 18% 2% 155
5 MARATHON EXCELLENCE ERVOIR STUDIES 73033 0% 50% 4
6 STATE OIL GAS ERVOIR GEOL EXPLOITA 50808 6% 3% 48
7 POROUS FLOW FLUID MECH 50771 1% 13% 11
8 ACT REG EXPLORATORIO 36519 0% 100% 1
9 AMER EP TECHNOL GRP 36519 0% 100% 1
10 AWEATHERFORD CO 36519 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SPE RESERVOIR EVALUATION & ENGINEERING 169382 8% 6% 73
2 JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 147506 14% 3% 121
3 SPE JOURNAL 136431 8% 5% 71
4 SPE FORMATION EVALUATION 112584 2% 15% 21
5 JOURNAL OF PETROLEUM TECHNOLOGY 101042 7% 5% 57
6 JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY 61309 6% 3% 52
7 CT&F-CIENCIA TECNOLOGIA Y FUTURO 50564 2% 11% 13
8 JOURNAL OF HYDRODYNAMICS 26355 4% 2% 35
9 SOCIETY OF PETROLEUM ENGINEERS JOURNAL 17690 2% 3% 14
10 WORLD OIL 16404 1% 6% 7

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 WELL TESTING 539221 5% 38% 39 Search WELL+TESTING Search WELL+TESTING
2 THRESHOLD PRESSURE GRADIENT 471194 2% 65% 20 Search THRESHOLD+PRESSURE+GRADIENT Search THRESHOLD+PRESSURE+GRADIENT
3 HORIZONTAL WELL 307320 5% 19% 44 Search HORIZONTAL+WELL Search HORIZONTAL+WELL
4 INFLOW CONTROL DEVICES 255630 1% 100% 7 Search INFLOW+CONTROL+DEVICES Search INFLOW+CONTROL+DEVICES
5 PRESSURE BEHAVIOR 211280 1% 64% 9 Search PRESSURE+BEHAVIOR Search PRESSURE+BEHAVIOR
6 TYPE CURVES 208649 2% 29% 20 Search TYPE+CURVES Search TYPE+CURVES
7 FRACTURED HORIZONTAL WELL 194753 1% 44% 12 Search FRACTURED+HORIZONTAL+WELL Search FRACTURED+HORIZONTAL+WELL
8 PRESSURE TRANSIENT TESTING 187808 1% 86% 6 Search PRESSURE+TRANSIENT+TESTING Search PRESSURE+TRANSIENT+TESTING
9 FRACTURED WELL 184868 1% 56% 9 Search FRACTURED+WELL Search FRACTURED+WELL
10 SKIN FACTOR 169620 1% 39% 12 Search SKIN+FACTOR Search SKIN+FACTOR

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 3530 SHALE GAS//JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING//LONGMAXI FORMATION
2 34895 CRESTING//WATER CONING//DUAL COMPLETION
3 17691 SPONTANEOUS IMBIBITION//COUNTERCURRENT IMBIBITION//FRACTURED RESERVOIR
4 20753 FORMATION TEMPERATURE//TEMPERATURE TRANSIENT ANALYSIS//WELL DRILLING
5 19855 NON DARCY FLOW//GAS CONDENSATE//GAS WETTING
6 20666 LOST CIRCULATION//SPE DRILLING & COMPLETION//WELLBORE STRENGTHENING
7 32798 PROBE PERMEAMETRY//VISCOUS DOMINANT REGIME//ROCK DEFORMAT LTD RDR
8 4978 GROUND WATER//PUMPING TEST//SLUG TEST
9 9142 HISTORY MATCHING//COMPUTATIONAL GEOSCIENCES//SPE JOURNAL
10 7995 HYDRAULIC FRACTURING//HYDRAULIC FRACTURE//NATURAL FRACTURE

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