Class information for:
Level 1: GAS HYDRATE//METHANE HYDRATE//DEPRESSURIZATION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
4320 1806 38.3 51%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
570 3       GAS HYDRATE//METHANE HYDRATE//CLATHRATE HYDRATE 16716
1277 2             GAS HYDRATE//METHANE HYDRATE//CLATHRATE HYDRATE 8736
4320 1                   GAS HYDRATE//METHANE HYDRATE//DEPRESSURIZATION 1806

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 GAS HYDRATE authKW 3188163 31% 34% 555
2 METHANE HYDRATE authKW 1198908 10% 39% 182
3 DEPRESSURIZATION authKW 801440 5% 55% 86
4 BOTTOM SIMULATING REFLECTOR authKW 768445 3% 91% 50
5 BSR authKW 679712 4% 59% 68
6 GUANGZHOU GAS HYDRATE address 668111 4% 49% 81
7 NATURAL GAS HYDRATE authKW 594394 3% 60% 59
8 HYDRATE DISSOCIATION authKW 552244 2% 78% 42
9 FREE GAS authKW 375705 2% 67% 33
10 HYDRATE BEARING SEDIMENTS authKW 338886 1% 95% 21

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 Geosciences, Multidisciplinary 16095 35% 0% 631
2 Geochemistry & Geophysics 15243 26% 0% 466
3 Engineering, Petroleum 13389 9% 1% 158
4 Energy & Fuels 8654 23% 0% 408
5 Engineering, Chemical 2797 17% 0% 314
6 Oceanography 2619 9% 0% 161
7 Engineering, Ocean 1208 2% 0% 40
8 Geology 952 3% 0% 61
9 Engineering, Geological 476 2% 0% 37
10 Thermodynamics 258 4% 0% 66

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 GUANGZHOU GAS HYDRATE 668111 4% 49% 81
2 METHANE HYDRATE 251524 2% 40% 37
3 GAS HYDRATE 224740 3% 27% 50
4 OCEAN ENERGY UTILIZAT ENERGY CONSERVAT 139954 3% 16% 51
5 GUANGZHOU ENERGY CONVERS 120357 5% 7% 98
6 RENEWABLE ENERGY GAS HYDRATE 103619 3% 12% 51
7 METHANE HYDRATE DEV GRP 84530 0% 100% 5
8 EXPLORAT TECH 75303 0% 64% 7
9 PETR MARINE OURCES 51949 1% 18% 17
10 MARINE ENVIRONM ENGN GEOL SURVEY 50718 0% 100% 3

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 MARINE AND PETROLEUM GEOLOGY 271265 12% 8% 212
2 MARINE GEOPHYSICAL RESEARCH 30497 2% 6% 30
3 JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 24464 3% 3% 53
4 JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 21929 7% 1% 118
5 JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 13781 3% 2% 53
6 GEO-MARINE LETTERS 9360 1% 2% 25
7 INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING 8583 1% 3% 19
8 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 8253 3% 1% 48
9 MARINE GEOLOGY 7996 3% 1% 49
10 ENERGIES 5882 2% 1% 34

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 GAS HYDRATE 3188163 31% 34% 555 Search GAS+HYDRATE Search GAS+HYDRATE
2 METHANE HYDRATE 1198908 10% 39% 182 Search METHANE+HYDRATE Search METHANE+HYDRATE
3 DEPRESSURIZATION 801440 5% 55% 86 Search DEPRESSURIZATION Search DEPRESSURIZATION
4 BOTTOM SIMULATING REFLECTOR 768445 3% 91% 50 Search BOTTOM+SIMULATING+REFLECTOR Search BOTTOM+SIMULATING+REFLECTOR
5 BSR 679712 4% 59% 68 Search BSR Search BSR
6 NATURAL GAS HYDRATE 594394 3% 60% 59 Search NATURAL+GAS+HYDRATE Search NATURAL+GAS+HYDRATE
7 HYDRATE DISSOCIATION 552244 2% 78% 42 Search HYDRATE+DISSOCIATION Search HYDRATE+DISSOCIATION
8 FREE GAS 375705 2% 67% 33 Search FREE+GAS Search FREE+GAS
9 HYDRATE BEARING SEDIMENTS 338886 1% 95% 21 Search HYDRATE+BEARING+SEDIMENTS Search HYDRATE+BEARING+SEDIMENTS
10 SHENHU AREA 298098 1% 77% 23 Search SHENHU+AREA Search SHENHU+AREA

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 CHONG, ZR , YANG, SHB , BABU, P , LINGA, P , LI, XS , (2016) REVIEW OF NATURAL GAS HYDRATES AS AN ENERGY RESOURCE: PROSPECTS AND CHALLENGES.APPLIED ENERGY. VOL. 162. ISSUE . P. 1633 -1652 106 62% 54
2 LI, XS , XU, CG , ZHANG, Y , RUAN, XK , LI, G , WANG, Y , (2016) INVESTIGATION INTO GAS PRODUCTION FROM NATURAL GAS HYDRATE: A REVIEW.APPLIED ENERGY. VOL. 172. ISSUE . P. 286 -322 177 57% 3
3 WAITE, WF , SANTAMARINA, JC , CORTES, DD , DUGAN, B , ESPINOZA, DN , GERMAINE, J , JANG, J , JUNG, JW , KNEAFSEY, TJ , SHIN, H , ET AL (2009) PHYSICAL PROPERTIES OF HYDRATE-BEARING SEDIMENTS.REVIEWS OF GEOPHYSICS. VOL. 47. ISSUE . P. - 108 58% 138
4 REAGAN, MT , SLOAN, ED , SUM, AK , KOH, CA , MORIDIS, GJ , COLLETT, TS , POOLADI-DARVISH, M , HANCOCK, S , SANTAMARINA, C , BOSWELL, R , ET AL (2011) CHALLENGES, UNCERTAINTIES, AND ISSUES FACING GAS PRODUCTION FROM GAS-HYDRATE DEPOSITS.SPE RESERVOIR EVALUATION & ENGINEERING. VOL. 14. ISSUE 1. P. 76 -112 82 73% 54
5 CHATTERJEE, S , BHATNAGAR, G , DUGAN, B , DICKENS, GR , CHAPMAN, WG , HIRASAKI, GJ , (2014) THE IMPACT OF LITHOLOGIC HETEROGENEITY AND FOCUSED FLUID FLOW UPON GAS HYDRATE DISTRIBUTION IN MARINE SEDIMENTS.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH. VOL. 119. ISSUE 9. P. 6705 -6732 68 86% 5
6 XU, CG , LI, XS , (2015) RESEARCH PROGRESS ON METHANE PRODUCTION FROM NATURAL GAS HYDRATES.RSC ADVANCES. VOL. 5. ISSUE 67. P. 54672 -54699 107 49% 7
7 CHONG, ZR , PUJAR, GA , YANG, MJ , LINGA, P , (2016) METHANE HYDRATE FORMATION IN EXCESS WATER SIMULATING MARINE LOCATIONS AND THE IMPACT OF THERMAL STIMULATION ON ENERGY RECOVERY.APPLIED ENERGY. VOL. 177. ISSUE . P. 409 -421 56 85% 2
8 SAIN, K , GUPTA, H , (2012) GAS HYDRATES IN INDIA: POTENTIAL AND DEVELOPMENT.GONDWANA RESEARCH. VOL. 22. ISSUE 2. P. 645 -657 56 89% 10
9 NING, FL , WU, NY , YU, YB , ZHANG, KN , JIANG, GS , ZHANG, L , SUN, JX , ZHENG, MM , (2013) INVASION OF DRILLING MUD INTO GAS-HYDRATE-BEARING SEDIMENTS. PART II: EFFECTS OF GEOPHYSICAL PROPERTIES OF SEDIMENTS.GEOPHYSICAL JOURNAL INTERNATIONAL. VOL. 193. ISSUE 3. P. 1385-1398 51 94% 1
10 BAI, HX , PECHER, IA , ADAM, L , FIELD, B , (2016) POSSIBLE LINK BETWEEN WEAK BOTTOM SIMULATING REFLECTIONS AND GAS HYDRATE SYSTEMS IN FRACTURES AND MACROPORES OF FINE-GRAINED SEDIMENTS: RESULTS FROM THE HIKURANGI MARGIN, NEW ZEALAND.MARINE AND PETROLEUM GEOLOGY. VOL. 71. ISSUE . P. 225 -237 44 90% 1

Classes with closest relation at Level 1


Rank Class id link
1 2010 MUD VOLCANO//AUTHIGENIC CARBONATES//POCKMARKS
2 138 GAS HYDRATE//CLATHRATE HYDRATE//HYDRATE
3 9882 NANKAI TROUGH//NANKAI//ACCRETIONARY PRISM
4 1638 TURBIDITY CURRENTS//TURBIDITES//SUBMARINE CHANNELS
5 4628 ROCK PHYSICS//GEOPHYSICS//BISQ MODEL
6 7195 GEOPHYSICS//AVO//AVO INVERSION
7 21353 INVERSE Q FILTERING//Q ESTIMATION//GAIN LIMIT
8 20787 LIGNIN PHENOLS//PACIFIC OCEANOL//CUO OXIDATION
9 16210 85 DEGREES E RIDGE//LAXMI RIDGE//BOMBAY HIGH
10 18006 DEEP BIOSPHERE//GEOMICROBIOL//GEOMICROBIOL GRP

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