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)

General Information

Status
Withdrawn
Publication Date
30-Mar-2008
Withdrawal Date
06-Dec-2020
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
07-Dec-2020
Due Date
30-Dec-2020
Completion Date
07-Dec-2020

Relations

Buy Standard

Standard
SIST EN ISO 19902:2008
English language
638 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 19902:2008
01-maj-2008

,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD9DUMHQHMHNOHQHNRQVWUXNFLMH

QDIWQLKSORãþDGL ,62

Petroleum 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
---------------------- Page: 5 ----------------------
ISO 19902:2007(E)
PDF disclaimer

This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but

shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In

downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat

accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.

Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation

parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In

the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

COPYRIGHT PROTECTED DOCUMENT
© ISO 2007

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
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 wce

9.6 Actions caused by current................................................................................................................. 46

9.7 Actions caused by wind..................................................................................................................... 47

© ISO 2007 – All rights reserved iii
---------------------- Page: 7 ----------------------
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

iv © ISO 2007 – All rights reserved
---------------------- Page: 8 ----------------------
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

© ISO 2007 – All rights reserved v
---------------------- Page: 9 ----------------------
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...............................................
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.