Class information for:
Level 1: NUCLEAR MAGNETIC RESONANCE NMR LOGS//PETROPHYSICS//CEMENTATION EXPONENT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
23250 353 19.8 24%


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
16 4 ENGINEERING, CIVIL//CONSTRUCTION & BUILDING TECHNOLOGY//MECHANICS 627508
231 3       ENGINEERING, PETROLEUM//INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES//PETR ENGN 49169
777 2             ENGINEERING, PETROLEUM//JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY//PETR ENGN 12212
23250 1                   NUCLEAR MAGNETIC RESONANCE NMR LOGS//PETROPHYSICS//CEMENTATION EXPONENT 353

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 NUCLEAR MAGNETIC RESONANCE NMR LOGS authKW 519011 2% 100% 6
2 PETROPHYSICS journal 471288 11% 14% 38
3 CEMENTATION EXPONENT authKW 432509 1% 100% 5
4 FORMATION TESTING authKW 360422 1% 83% 5
5 NET PAY authKW 308932 1% 71% 5
6 FORMATION TESTER authKW 276804 1% 80% 4
7 MUD FILTRATE INVASION authKW 276804 1% 80% 4
8 FORMATION TESTING WHILE DRILLING authKW 259505 1% 100% 3
9 SPE RESERVOIR EVALUATION & ENGINEERING journal 223435 15% 5% 53
10 SOUTHWEST OIL GAS FIELD BRANCH CO address 194627 1% 75% 3

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Engineering, Petroleum 106396 55% 1% 195
2 Energy & Fuels 6155 42% 0% 149
3 Geosciences, Multidisciplinary 3235 35% 0% 125
4 Geochemistry & Geophysics 2050 22% 0% 76
5 Engineering, Chemical 141 10% 0% 34
6 Spectroscopy 82 5% 0% 17
7 Geology 42 2% 0% 6
8 Instruments & Instrumentation 23 3% 0% 12
9 Mining & Mineral Processing 19 1% 0% 3
10 Materials Science, Characterization, Testing 11 1% 0% 3

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SOUTHWEST OIL GAS FIELD BRANCH CO 194627 1% 75% 3
2 HOUSTON P SURE SAMPLING 173004 1% 100% 2
3 EXPLORAT TECHNOL ENGN 115334 1% 67% 2
4 CONSORTIUM FORMAT EVALUAT 111213 1% 43% 3
5 AA TROFIMUK PETR GEOPHYS GEOL 86502 0% 100% 1
6 ASIAN SUPPLY BASE 86502 0% 100% 1
7 AUTOMACAO RUMENTACAO QUIM AALIT QUIMIOM 86502 0% 100% 1
8 BAKER HUGHES HOUSTON TECHNOL 86502 0% 100% 1
9 BAKER HUGHES NOVOSIBIRSK TECHNOL 86502 0% 100% 1
10 BAKER HUGHES NOVOSIBIRSK TECHNOL CENTER 86502 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PETROPHYSICS 471288 11% 14% 38
2 SPE RESERVOIR EVALUATION & ENGINEERING 223435 15% 5% 53
3 OILFIELD REVIEW 56900 1% 13% 5
4 JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 42436 12% 1% 41
5 RUSSIAN GEOLOGY AND GEOPHYSICS 28576 6% 2% 21
6 SPE FORMATION EVALUATION 22232 2% 4% 6
7 GEOLOGIYA I GEOFIZIKA 7945 3% 1% 10
8 WORLD OIL 7137 1% 3% 3
9 SPE DRILLING & COMPLETION 6129 2% 1% 7
10 JOURNAL OF PETROLEUM TECHNOLOGY 4823 2% 1% 8

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 NUCLEAR MAGNETIC RESONANCE NMR LOGS 519011 2% 100% 6 Search NUCLEAR+MAGNETIC+RESONANCE+NMR+LOGS Search NUCLEAR+MAGNETIC+RESONANCE+NMR+LOGS
2 CEMENTATION EXPONENT 432509 1% 100% 5 Search CEMENTATION+EXPONENT Search CEMENTATION+EXPONENT
3 FORMATION TESTING 360422 1% 83% 5 Search FORMATION+TESTING Search FORMATION+TESTING
4 NET PAY 308932 1% 71% 5 Search NET+PAY Search NET+PAY
5 FORMATION TESTER 276804 1% 80% 4 Search FORMATION+TESTER Search FORMATION+TESTER
6 MUD FILTRATE INVASION 276804 1% 80% 4 Search MUD+FILTRATE+INVASION Search MUD+FILTRATE+INVASION
7 FORMATION TESTING WHILE DRILLING 259505 1% 100% 3 Search FORMATION+TESTING+WHILE+DRILLING Search FORMATION+TESTING+WHILE+DRILLING
8 FLUID SAMPLING 180206 1% 42% 5 Search FLUID+SAMPLING Search FLUID+SAMPLING
9 BOREHOLES WITH HORIZONTAL COMPLETION 173004 1% 100% 2 Search BOREHOLES+WITH+HORIZONTAL+COMPLETION Search BOREHOLES+WITH+HORIZONTAL+COMPLETION
10 CONNATE WATER RESISTIVITY 173004 1% 100% 2 Search CONNATE+WATER+RESISTIVITY Search CONNATE+WATER+RESISTIVITY

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.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 KWAK, H , HURSAN, G , SHAO, W , CHEN, SH , BALLIET, R , EID, M , GUERGUEB, N , (2016) PREDICTING CARBONATE ROCK PROPERTIES USING NMR DATA AND GENERALIZED INTERPOLATION-BASED TECHNIQUES.PETROPHYSICS. VOL. 57. ISSUE 4. P. 351 -368 10 91% 0
2 XIAO, L , MAO, ZQ , JIN, Y , (2015) TIGHT GAS SANDSTONE RESERVOIRS EVALUATION FROM NUCLEAR MAGNETIC RESONANCE (NMR) LOGS: CASE STUDIES.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING. VOL. 40. ISSUE 4. P. 1223 -1237 10 91% 1
3 LIANG, L , ABUBAKAR, A , HABASHY, TM , (2011) ESTIMATING PETROPHYSICAL PARAMETERS AND AVERAGE MUD-FILTRATE INVASION RATES USING JOINT INVERSION OF INDUCTION LOGGING AND PRESSURE TRANSIENT DATA.GEOPHYSICS. VOL. 76. ISSUE 2. P. E21 -E34 13 65% 2
4 MASOUDI, P , ARBAB, B , MOHAMMADREZAEI, H , (2014) NET PAY DETERMINATION BY DEMPSTER RULE OF COMBINATION: CASE STUDY ON IRANIAN OFFSHORE OIL FIELDS.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING. VOL. 123. ISSUE . P. 78 -83 9 82% 1
5 SANEIFAR, M , HEIDARI, Z , HILL, AD , (2015) APPLICATION OF CONVENTIONAL WELL LOGS TO CHARACTERIZE SPATIAL HETEROGENEITY IN CARBONATE FORMATIONS REQUIRED FOR PREDICTION OF ACID-FRACTURE CONDUCTIVITY.SPE PRODUCTION & OPERATIONS. VOL. 30. ISSUE 3. P. 243 -256 11 65% 0
6 MASOUDI, P , ARBAB, B , MOHAMMADREZAEI, H , (2014) NET PAY DETERMINATION BY ARTIFICIAL NEURAL NETWORK: CASE STUDY ON IRANIAN OFFSHORE OIL FIELDS.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING. VOL. 123. ISSUE . P. 72 -77 8 89% 2
7 ZHANG, C , CHENG, Y , ZHANG, CM , (2017) AN IMPROVED METHOD FOR PREDICTING PERMEABILITY BY COMBINING ELECTRICAL MEASUREMENTS AND MERCURY INJECTION CAPILLARY PRESSURE DATA.JOURNAL OF GEOPHYSICS AND ENGINEERING. VOL. 14. ISSUE 1. P. 132 -142 12 55% 0
8 YANG, M , YANG, DY , (2016) PERMEABILITY INTERPRETATION FROM WIRELINE FORMATION TESTING MEASUREMENTS WITH CONSIDERATION OF EFFECTIVE THICKNESS.PETROPHYSICS. VOL. 57. ISSUE 3. P. 251 -269 9 69% 0
9 EPOV, MI , GLINSKIKH, VN , SUKHORUKOVA, KV , NIKITENKO, MN , EREMIN, VN , (2015) FORWARD MODELING AND INVERSION OF LWD INDUCTION DATA.RUSSIAN GEOLOGY AND GEOPHYSICS. VOL. 56. ISSUE 8. P. 1194 -1200 6 100% 2
10 GORBATENKO, AA , SUKHORUKOVA, KV , (2016) HIGH-FREQUENCY INDUCTION LOGGING IN DEVIATED AND HORIZONTAL WELLS: GEOSTEERING AND INVERSION.RUSSIAN GEOLOGY AND GEOPHYSICS. VOL. 57. ISSUE 7. P. 1111 -1117 6 100% 0

Classes with closest relation at Level 1


Rank Class id link
1 13009 SPECTRAL INDUCED POLARIZATION//INDUCED POLARIZATION//COMPLEX RESISTIVITY
2 12054 BUBBLE POINT PRESSURE//WELL LOG DATA//DEW POINT PRESSURE
3 27887 WELLBORE STRENGTHENING//LOST CIRCULATION//LOST CIRCULATION MATERIAL
4 7534 SHALE GAS//LONGMAXI FORMATION//TIGHT OIL
5 7287 ENGINEERING, PETROLEUM//SPE RESERVOIR EVALUATION & ENGINEERING//WELL TESTING
6 32424 CENTRIFUGE PERMEAMETER//HORIZONTAL DRAINS//ADVECTION DISPERSION ANALYSIS
7 35024 ACOUSTIC GAS SENSOR//EFFECTIVE RELAXATION AREA//EFFECTIVE SPECIFIC HEAT CAPACITY
8 18698 ENGN PLICAT RADIOISOTOPES//NUCLEAR GEOPHYSICS//MONTECUCCOLINO DIN
9 1701 GEOPHYSICS//AIRBORNE ELECTROMAGNETICS//MARINE ELECTROMAGNETICS
10 19820 GEOARABIA//JOURNAL OF PETROLEUM GEOLOGY//SARVAK FORMATION

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