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BS EN ISO 19901-9:2019

BS EN ISO 19901-9:2019

$215.11

Petroleum and natural gas industries. Specific requirements for offshore structures – Structural integrity management

Published By Publication Date Number of Pages
BSI 2019 154
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This document specifies principles for the structural integrity management (SIM) of offshore structures subjected to known or foreseeable types of actions.

This document 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.

This document is applicable to topsides, including but not limited to the main decks, deck legs, topsides modules, crane pedestals, helideck, drilling derrick, skid beams, flare booms, exhaust towers, radio tower, conductor support frames, and lifeboat davits. 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 (e.g. underwater oil storage tanks, bridges and connecting structures), to the extent to which its requirements are relevant.

This document contains requirements for planning and engineering of the following tasks:

  1. integrity management data requirements;

  2. in-service inspection and integrity management of both new and existing structures;

  3. assessment of existing structures;

  4. evaluation of structures for reuse at different locations;

  5. evaluation of structures for their future removal.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
Endorsement notice
8 Foreword
9 Introduction
10 1 Scope
2 Normative references
11 3 Terms and definitions
13 4 Symbols
14 5 Abbreviated terms
15 6 SIM fundamentals
6.1 General
6.2 Limit states and performance levels
6.3 Fitness-for-service assessment
16 6.4 Management framework
17 6.5 Design
18 6.6 Topsides
6.7 Continued service
6.8 Structural integrity interfaces
7 SIM process
19 8 SIM data
8.1 General
20 8.2 Missing data
8.3 Data management
21 9 SIM evaluation
9.1 General
9.2 Data evaluation
9.3 Hazards, hazardous events and degradation mechanisms
9.4 Critical structure (CS)
9.5 Risk
9.5.1 General
22 9.5.2 Consequence
9.5.3 Likelihood
9.5.4 Risk presentation
9.6 Demonstrating fitness-for-service
23 9.7 Assessment
9.7.1 General
9.7.2 Assessment motive
24 9.7.3 Assessment initiators
9.8 Mitigation measures
9.8.1 General
25 9.8.2 Consequence reduction
9.8.3 Likelihood reduction
10 SIM strategy
10.1 General
26 10.2 Inspection strategy
10.2.1 General
27 10.2.2 Inspection motives
10.2.3 Inspection type
10.2.4 Inspection method
10.2.5 Inspection interval
29 10.2.6 Inspection scope
10.2.7 Pre-selected inspection areas
30 10.3 Maintenance strategy
10.4 Monitoring strategy
10.4.1 General
31 10.4.2 Weight and centre of gravity (CoG) monitoring
10.4.3 Deck elevation monitoring
10.4.4 Natural frequency monitoring
10.4.5 Corrosion protection monitoring
10.4.6 Metocean monitoring
10.5 Evacuation strategy
32 10.6 Marine site investigations
11 SIM Program
11.1 General
11.2 Inspection program
11.2.1 General
11.2.2 Specifications
33 11.2.3 Inspection method
34 11.3 Maintenance program
11.4 Monitoring program
35 12 Assessment
12.1 General
12.2 Assessment information
12.3 Assessment method
12.3.1 General
36 12.3.2 Qualitative method
37 12.3.3 Semi-quantitative method
38 12.3.4 Quantitative methods
40 12.3.5 Fatigue analysis
12.4 Assessment model
12.4.1 General
12.4.2 Tubular members
41 12.4.3 Connections
12.4.4 Conductors
12.4.5 Damage
42 12.4.6 Repaired and strengthened elements
12.4.7 Foundation model
43 12.4.8 Material strength
12.5 Assessment for gravity hazard
12.5.1 General
44 12.5.2 Design level method (DLM)
12.5.3 Ultimate strength method (USM)
12.6 Assessment for metocean hazard
12.6.1 General
12.6.2 Metocean criteria
12.6.3 Crest elevation
45 12.6.4 Metocean action combinations — Jacket
12.6.5 Metocean action combinations — Deck
12.6.6 Directionality of metocean hazards
46 12.6.7 Design level method (DLM)
12.6.8 Linear-elastic redundancy method
12.6.9 Ultimate strength method (USM)
47 12.7 Assessment for seismic hazard
12.7.1 General
12.7.2 Seismic criteria
12.7.3 Seismic action combinations
48 12.7.4 Directionality of seismic hazards
12.7.5 Design level method (DLM)
49 12.7.6 Ultimate strength method (USM)
12.8 Assessment for collision hazard
12.8.1 General
50 12.8.2 Collision zone
12.8.3 Collision criteria
12.8.4 Directionality of collision hazards
12.8.5 Collision assessment method
12.9 Assessment for ice hazard
51 12.10 Assessment for explosion hazard
12.11 Assessment for fire hazard
13 Reuse
13.1 General
13.2 Fatigue in reused structures
13.3 Steel in reused structures
52 13.4 Inspection of reused structures
13.4.1 General
13.4.2 Initial condition assessment of structural members and connections
13.4.3 Extent of weld inspection
53 13.4.4 Corrosion protection systems
13.5 Removal and reinstallation
14 Decommissioning and removal
14.1 General
14.2 Decommissioning process
14.3 Pre-decommissioning data gathering
14.4 Planning and engineering
54 14.5 Well decommissioning
14.6 Facilities decommissioning
14.7 Pipeline decommissioning
14.8 Conductor removal
14.9 Structure removal
14.10 Site clearance
55 Annex A (informative) Additional information and guidance
150 Bibliography
BS EN ISO 19901-9:2019
$215.11