Class information for:
Level 1: HELICAL BUCKLING//DRILLSTRING//DRILLSTRINGS

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
18356 491 19.8 29%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
3082 1887 INDUSTRIAL DIAMOND REVIEW//PROVINCIAL KEY STONE MACHINING//ROCK CUTTING

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 HELICAL BUCKLING Author keyword 15 73% 2% 11
2 DRILLSTRING Author keyword 9 50% 3% 13
3 DRILLSTRINGS Author keyword 8 34% 4% 20
4 CONSTRAINED ELASTICA Author keyword 8 75% 1% 6
5 SPE DRILLING & COMPLETION Journal 8 11% 14% 68
6 DRILL STRINGS Author keyword 7 64% 1% 7
7 SINUSOIDAL BUCKLING Author keyword 6 80% 1% 4
8 DRILL STRING DYNAMICS Author keyword 6 71% 1% 5
9 ADV DRILLING GRP Address 6 100% 1% 4
10 BEAM COLUMN MODEL Author keyword 6 100% 1% 4

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 HELICAL BUCKLING 15 73% 2% 11 Search HELICAL+BUCKLING Search HELICAL+BUCKLING
2 DRILLSTRING 9 50% 3% 13 Search DRILLSTRING Search DRILLSTRING
3 DRILLSTRINGS 8 34% 4% 20 Search DRILLSTRINGS Search DRILLSTRINGS
4 CONSTRAINED ELASTICA 8 75% 1% 6 Search CONSTRAINED+ELASTICA Search CONSTRAINED+ELASTICA
5 DRILL STRINGS 7 64% 1% 7 Search DRILL+STRINGS Search DRILL+STRINGS
6 SINUSOIDAL BUCKLING 6 80% 1% 4 Search SINUSOIDAL+BUCKLING Search SINUSOIDAL+BUCKLING
7 DRILL STRING DYNAMICS 6 71% 1% 5 Search DRILL+STRING+DYNAMICS Search DRILL+STRING+DYNAMICS
8 BEAM COLUMN MODEL 6 100% 1% 4 Search BEAM+COLUMN+MODEL Search BEAM+COLUMN+MODEL
9 DRILLSTRING DYNAMICS 5 63% 1% 5 Search DRILLSTRING+DYNAMICS Search DRILLSTRING+DYNAMICS
10 TORQUE AND DRAG 4 75% 1% 3 Search TORQUE+AND+DRAG Search TORQUE+AND+DRAG

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 DRILLSTRINGS 30 60% 7% 33
2 OIL WELL DRILLSTRINGS 19 76% 3% 13
3 DRAG BITS 16 64% 3% 16
4 TUBULARS 11 100% 1% 6
5 ACTIVELY CONTROLLED DRILLSTRINGS 8 70% 1% 7
6 CURVED WELLS 8 100% 1% 5
7 STICK SLIP OSCILLATIONS 6 58% 1% 7
8 DIRECTIONAL WELLS 6 100% 1% 4
9 EXTENDED REACH 6 100% 1% 4
10 OILWELL DRILLSTRINGS 6 100% 1% 4

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 SPE DRILLING & COMPLETION 8 11% 14% 68

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
Advances in critical buckling load assessment for tubulars inside wellbores 2014 5 45 93%
A comparative review of modelling and controlling torsional vibrations and experimentation using laboratory setups 2013 1 6 100%
A Literature Review of Approaches for Stick-Slip Vibration Suppression in Oilwell Drillstring 2014 0 49 90%
A review of drillstring vibration modeling and suppression methods 2015 0 48 83%
Bifurcation analysis of periodic solutions of neutral functional differential equations: A case study 1998 10 9 11%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 ADV DRILLING GRP 6 100% 0.8% 4
2 DRILLING MECH GRP 4 75% 0.6% 3
3 TUDRP 3 57% 0.8% 4
4 MATURE BUSINESS UNIT 2 67% 0.4% 2
5 DRILLING TECH GRP 1 100% 0.4% 2
6 DRILLING EVALUAT 1 40% 0.4% 2
7 CHAIR DRILLING ENGN 1 50% 0.2% 1
8 CORPORATE STRATEG S 1 50% 0.2% 1
9 INGN SISTEMAS AUTOMAT LEGANES 1 50% 0.2% 1
10 INTEGRATED PROD 1 50% 0.2% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000204058 ROCK CUTTING//PERCUSSIVE DRILLING//TBM PERFORMANCE
2 0.0000146314 ELASTICA//THIN ELASTIC ROD//ELASTIC RODS
3 0.0000094933 SEISMIC WHILE DRILLING//SEISMIC DATA COMPRESSION//DRILLSTRINGS
4 0.0000080229 FORMATION TESTING//FORMATION TESTING WHILE DRILLING//FORMATION TESTER
5 0.0000079578 INDUSTRIAL DIAMOND REVIEW//DIAMOND SIC//POLYCRYSTALLINE DIAMOND
6 0.0000060043 UMR C5521//SUPPORT POSITION OPTIMIZATION//STATICALLY DETERMINATE BEAMS
7 0.0000054146 DRILLING WELL MODELING GRP//ESSENTIAL DATA SET//MANAGED PRESSURE DRILLING
8 0.0000051909 RUB IMPACT//ROTOR STATOR RUB//ROTOR DYNAMICS
9 0.0000049841 BORDER COLLISION BIFURCATIONS//GRAZING BIFURCATIONS//IMPACT OSCILLATOR
10 0.0000048809 DEFECTIVE CASING//SOLID EXPANDABLE TUBULAR TECHNOLOGY//TRIP STEEL TUBE