SIST EN ISO 19902:2008
(Main)Petroleum and natural gas industries - Fixed steel offshore structures (ISO 19902:2007)
Petroleum and natural gas industries - Fixed steel offshore structures (ISO 19902:2007)
This International Standard specifies requirements and provides recommendations applicable to the following types of fixed steel offshore structures for the petroleum and natural gas industries: caissons, free-standing and braced; jackets; monotowers; towers. In addition, it is applicable to compliant bottom founded structures, steel gravity structures, jack-ups, other bottom founded structures and other structures related to offshore structures (such as underwater oil storage tanks, bridges and connecting structures), to the extent to which its requirements are relevant. This International Standard contains requirements for planning and engineering of the following tasks: a) design, fabrication, transportation and installation of new structures as well as their future removal; b) in-service inspection and integrity management of both new and existing structures; c) assessment of existing structures; d) evaluation of structures for reuse at different locations.
Erdöl- und Erdgasindustrie - Gegründete Stahlplattformen (ISO 19902:2007)
Industries du pétrole et du gaz naturel - Structures en mer fixes en acier (ISO 19902:2007)
L'ISO 19902:2007 spécifie des exigences et fournit des recommandations applicables aux types suivants de structures en mer fixes en acier pour les industries du pétrole et du gaz naturel: caissons, autoportants et ancrés; jaquettes; tours mono; tours.
En outre, elle est applicable à des structures élastiques prenant appui sur le fond marin, à des structures en acier posées par gravité, à des plates-formes auto-élévatrices, à d'autres structures prenant appui sur le fond marin et à d'autres structures associées aux structures en mer (telles que des citernes sous-marines de stockage de pétrole, des ponts et des structures de joint) dans la mesure où ses exigences se rapportent à celles-ci.
L'ISO 19902:2007 contient des exigences pour la planification et l'ingénierie des tâches suivantes: la conception, la fabrication, le transport et l'installation de nouvelles structures de même que leur enlèvement futur; l'inspection en service et la gestion de l'intégrité à la fois des nouvelles structures et des structures existantes; l'appréciation de structures existantes; l'évaluation de structures en vue d'une réutilisation en des lieux différents.
Industrija za predelavo nafte in zemeljskega plina - Varjene jeklene konstrukcije naftnih ploščadi (ISO 19902:2007)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 19902:2008
01-maj-2008
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD9DUMHQHMHNOHQHNRQVWUXNFLMH
QDIWQLKSORãþDGL ,62Petroleum and natural gas industries - Fixed steel offshore structures (ISO 19902:2007)
Erdöl- und Erdgasindustrie - Gegründete Stahlplattformen (ISO 19902:2007)Industries du pétrole et du gaz naturel - Structures en mer fixes en acier (ISO
19902:2007)
Ta slovenski standard je istoveten z: EN ISO 19902:2007
ICS:
75.180.10
SIST EN ISO 19902:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------EUROPEAN STANDARD
EN ISO 19902
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2007
ICS 75.180.10
English Version
Petroleum and natural gas industries - Fixed steel offshore
structures (ISO 19902:2007)
Industries du pétrole et du gaz naturel - Structures en mer Erdöl- und Erdgasindustrie - Gegründete Stahlplattformen
fixes en acier (ISO 19902:2007) (ISO 19902:2007)This European Standard was approved by CEN on 3 November 2007.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19902:2007: E
worldwide for CEN national Members.---------------------- Page: 2 ----------------------
EN ISO 19902:2007 (E)
Contents Page
Foreword..............................................................................................................................................................3
---------------------- Page: 3 ----------------------EN ISO 19902:2007 (E)
Foreword
This document (EN ISO 19902:2007) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum and natural gas industries" in collaboration with Technical
Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical and
natural gas industries” the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2008, and conflicting national standards shall be withdrawn at
the latest by June 2008.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.Endorsement notice
The text of ISO 19902:2007 has been approved by CEN as a EN ISO 19902:2007 without any modification.
---------------------- Page: 4 ----------------------INTERNATIONAL ISO
STANDARD 19902
First edition
2007-12-01
Petroleum and natural gas industries —
Fixed steel offshore structures
Industries du pétrole et du gaz naturel — Structures en mer fixes en
acier
Reference number
ISO 19902:2007(E)
ISO 2007
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ISO 19902:2007(E)
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ii © ISO 2007 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 19902:2007(E)
Contents Page
Foreword............................................................................................................................................................ xi
Introduction ..................................................................................................................................................... xiii
1 Scope ..................................................................................................................................................... 1
2 Normative references ........................................................................................................................... 1
3 Terms and definitions........................................................................................................................... 2
4 Symbols ................................................................................................................................................. 9
5 Abbreviated terms .............................................................................................................................. 13
6 Overall considerations ....................................................................................................................... 15
6.1 Types of fixed steel offshore structure ............................................................................................ 15
6.2 Planning............................................................................................................................................... 17
6.3 Service and operational considerations........................................................................................... 17
6.4 Safety considerations......................................................................................................................... 18
6.5 Environmental considerations .......................................................................................................... 19
6.6 Exposure levels................................................................................................................................... 20
6.7 Assessment of existing structures ................................................................................................... 22
6.8 Structure reuse ................................................................................................................................... 22
7 General design requirements ............................................................................................................ 23
7.1 General................................................................................................................................................. 23
7.2 Incorporating limit states................................................................................................................... 23
7.3 Determining design situations .......................................................................................................... 23
7.4 Structural modelling and analysis .................................................................................................... 24
7.5 Design for pre-service and removal situations ............................................................................... 24
7.6 Design for the in-place situation....................................................................................................... 24
7.7 Determination of resistances ............................................................................................................ 24
7.8 Strength and stability checks............................................................................................................ 25
7.9 Robustness ......................................................................................................................................... 26
7.10 Reserve strength................................................................................................................................. 26
7.11 Indirect actions ................................................................................................................................... 26
7.12 Structural reliability analysis............................................................................................................. 27
8 Actions for pre-service and removal situations .............................................................................. 27
8.1 General................................................................................................................................................. 27
8.2 General requirements......................................................................................................................... 28
8.3 Actions associated with lifting.......................................................................................................... 30
8.4 Actions associated with fabrication ................................................................................................. 33
8.5 Actions associated with loadout....................................................................................................... 33
8.6 Actions associated with transportation ........................................................................................... 34
8.7 Actions associated with installation................................................................................................. 35
8.8 Actions associated with removal...................................................................................................... 36
9 Actions for in-place situations .......................................................................................................... 36
9.1 General................................................................................................................................................. 36
9.2 Permanent actions (G) and variable actions (Q).............................................................................. 36
9.3 Extreme environmental action due to wind, waves and current ................................................... 38
9.4 Extreme quasi-static action due to wind, waves and current (E )................................................. 39
9.5 Extreme quasi-static action caused by waves only (E ) or by waves and currents (E ) ....... 41
we wce9.6 Actions caused by current................................................................................................................. 46
9.7 Actions caused by wind..................................................................................................................... 47
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ISO 19902:2007(E)
9.8 Equivalent quasi-static action representing dynamic response caused by extreme wave
conditions ............................................................................................................................................ 48
9.9 Factored actions ................................................................................................................................. 50
9.10 Design situations ................................................................................................................................ 51
9.11 Local hydrodynamic actions.............................................................................................................. 53
10 Accidental situations .......................................................................................................................... 54
10.1 General ................................................................................................................................................. 54
10.2 Vessel collisions ................................................................................................................................. 58
10.3 Dropped objects.................................................................................................................................. 59
10.4 Fires and explosions .......................................................................................................................... 59
10.5 Abnormal environmental actions ...................................................................................................... 59
11 Seismic design considerations ......................................................................................................... 60
11.1 General ................................................................................................................................................. 60
11.2 Seismic design procedure ................................................................................................................. 60
11.3 Seismic reserve capacity factor ........................................................................................................ 61
11.4 Recommendations for ductile design............................................................................................... 61
11.5 ELE requirements ............................................................................................................................... 63
11.6 ALE requirements ............................................................................................................................... 64
11.7 Topsides appurtenances and equipment ......................................................................................... 66
12 Structural modelling and analysis .................................................................................................... 67
12.1 Purpose of analysis ............................................................................................................................ 67
12.2 Analysis principles ............................................................................................................................. 68
12.3 Modelling.............................................................................................................................................. 68
12.4 Analysis requirements........................................................................................................................ 75
12.5 Types of analysis ................................................................................................................................ 81
12.6 Non-linear analysis ............................................................................................................................. 83
13 Strength of tubular members............................................................................................................. 86
13.1 General ................................................................................................................................................. 86
13.2 Tubular members subjected to tension, compression, bending, shear or hydrostatic
pressure ............................................................................................................................................... 87
13.3 Tubular members subjected to combined forces without hydrostatic pressure ......................... 94
13.4 Tubular members subjected to combined forces with hydrostatic pressure............................... 96
13.5 Effective lengths and moment reduction factors ............................................................................ 99
13.6 Conical transitions............................................................................................................................ 101
13.7 Dented tubular members.................................................................................................................. 111
13.8 Corroded tubular members.............................................................................................................. 118
13.9 Grouted tubular members ................................................................................................................ 118
14 Strength of tubular joints ................................................................................................................. 123
14.1 General ............................................................................................................................................... 123
14.2 Design considerations...................................................................................................................... 124
14.3 Simple circular tubular joints........................................................................................................... 132
14.4 Overlapping circular tubular joints ................................................................................................. 138
14.5 Grouted circular tubular joints ........................................................................................................ 139
14.6 Ring stiffened circular tubular joints .............................................................................................. 139
14.7 Other circular joint types.................................................................................................................. 139
14.8 Damaged joints ................................................................................................................................. 139
14.9 Noncircular joints.............................................................................................................................. 140
14.10 Cast joints.......................................................................................................................................... 140
15 Strength and fatigue resistance of other structural components................................................ 140
15.1 Grouted connections ........................................................................................................................ 140
15.2 Mechanical connections................................................................................................................... 147
15.3 Clamps for strengthening and repair.............................................................................................. 151
16 Fatigue................................................................................................................................................ 155
16.1 General ............................................................................................................................................... 155
16.2 General requirements ....................................................................................................................... 156
16.3 Description of the long-term wave environment ........................................................................... 159
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ISO 19902:2007(E)
16.4 Performing the global stress analyses........................................................................................... 161
16.5 Characterization of the stress range data governing fatigue....................................................... 164
16.6 The long-term local stress range history ....................................................................................... 165
16.7 Determining the long-term stress range distribution by spectral analysis................................ 167
16.8 Determining the long-term stress range distribution by deterministic analysis ....................... 171
16.9 Determining the long-term stress range distribution by approximate methods........................ 171
16.10 Geometrical stress ranges............................................................................................................... 172
16.11 Fatigue resistance of the material................................................................................................... 174
16.12 Fatigue assessment.......................................................................................................................... 176
16.13 Other causes of fatigue damage than wave action ....................................................................... 177
16.14 Further design considerations ........................................................................................................ 178
16.15 Fracture mechanics methods.......................................................................................................... 180
16.16 Fatigue performance improvement of existing components....................................................... 181
17 Foundation design............................................................................................................................ 182
17.1 General............................................................................................................................................... 182
17.2 Pile foundations ................................................................................................................................ 183
17.3 General requirements for pile design............................................................................................. 184
17.4 Pile capacity for axial compression................................................................................................ 185
17.5 Pile capacity for axial tension ......................................................................................................... 190
17.6 Axial pile performance ..................................................................................................................... 190
17.7 Soil reaction for piles under axial compression............................................................................ 191
17.8 Soil reaction for piles under lateral actions................................................................................... 194
17.9 Pile group behaviour ........................................................................................................................ 198
17.10 Pile wall thickness ............................................................................................................................ 199
17.11 Length of pile sections..................................................................................................................... 201
17.12 Shallow foundations......................................................................................................................... 202
18 Corrosion control.............................................................................................................................. 203
18.1 General............................................................................................................................................... 203
18.2 Corrosion zones and environmental parameters affecting corrosivity ...................................... 203
18.3 Forms of corrosion, associated corrosion rates and corrosion damage................................... 204
18.4 Design of corrosion control............................................................................................................. 204
18.5 Fabrication and installation of corrosion control.......................................................................... 209
18.6 In-service inspection, monitoring and maintenance of corrosion control ................................. 210
19 Materials ............................................................................................................................................ 211
19.1 General............................................................................................................................................... 211
19.2 Design philosophy............................................................................................................................ 212
19.3 Strength groups ................................................................................................................................ 214
19.4 Toughness classes........................................................................................................................... 214
19.5 Applicable steels............................................................................................................................... 215
19.6 Cement grout for pile-to-sleeve connections and grouted repairs. ............................................ 216
20 Welding, fabrication and weld inspection...................................................................................... 217
20.1 General............................................................................................................................................... 217
20.2 Welding .............................................................................................................................................. 218
20.3 Inspection .......................................................................................................................................... 224
20.4 Fabrication......................................................................................................................................... 225
21 Quality control, quality assurance and documentation................................................................ 228
21.1 General............................................................................................................................................... 228
21.2 Quality management system ........................................................................................................... 228
21.3 Quality control plan .......................................................................................................................... 229
21.4 Inspection of installation aids and appurtenances ....................................................................... 230
21.5 Inspection of loadout, sea-fastening and transportation ............................................................. 231
21.6 Installation inspection...................................................................................................................... 231
21.7 Documentation.................................................................................................................................. 232
21.8 Drawings and specifications ........................................................................................................... 234
22 Loadout, transportation and installation........................................................................................ 234
22.1 General............................................................................................................................................... 234
22.2 Loadout and transportation............................................................................................................. 235
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ISO 19902:2007(E)
22.3 Transfer of the structure from the transport barge into the water............................................... 237
22.4 Placement on the sea floor and assembly of the structure.......................................................... 238
22.5 Pile installation..................................................
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