NEN EN ISO 19901-7 : 2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
   4.1 Symbols
   4.2 Abbreviated terms
5 Overall considerations
   5.1 Functional requirements
   5.2 Safety requirements
   5.3 Planning requirements
   5.4 Inspection and maintenance requirements
   5.5 Analytical tools
6 Design requirements
   6.1 Exposure levels
   6.2 Limit states
   6.3 Defining design situations
   6.4 Design situations
7 Actions
   7.1 General
   7.2 Site-specific data requirements
   7.3 Environmental actions on mooring lines
   7.4 Indirect actions
        7.4.1 General
8 Mooring analysis
   8.1 Basic considerations
   8.2 Floating structure offset
   8.3 Floating structure response
   8.4 Mooring line response
   8.5 Line tension
   8.6 Line length and geometry constraints
   8.7 Anchor forces
   8.8 Typical mooring configuration analysis and assessment
   8.9 Thruster-assisted moorings
   8.10 Transient analysis of floating structure motions
9 Fatigue analysis
   9.1 Basic considerations
   9.2 Fatigue resistance
   9.3 Fatigue analysis procedure
10 Design criteria
   10.1 Floating structure offset
   10.2 Line tension limit
   10.3 Grounded line length
   10.4 Anchoring systems
   10.5 Fatigue safety factor
   10.6 Corrosion and wear
   10.7 Clearances
   10.8 Supporting structures
11 Mooring hardware
   11.1 Mooring line components
   11.2 Winching equipment
   11.3 Monitoring equipment
12 In-service inspection, monitoring and maintenance
   12.1 General
   12.2 Mobile moorings
   12.3 Permanent moorings
13 Dynamic positioning system
   13.1 Basic considerations
   13.2 Design and analysis
   13.3 Design, test and maintenance
   13.4 Operating personnel
   13.5 Determination of stationkeeping capability
14 Synthetic fibre rope mooring
   14.1 Basic considerations
   14.2 Fibre rope mooring analysis
   14.3 Fatigue analysis
   14.4 Creep analysis
   14.5 Design criteria
   14.6 Model testing
Annex A (informative) Additional information and guidance
      A.1 Scope
           A.1.1 General
           A.1.2 Spread moorings (catenary, taut-line and
                 semi-taut-line)
           A.1.3 Single point moorings
           A.1.4 Dynamic positioning (DP) systems
           A.1.5 Thruster-assisted moorings
           A.1.6 Permanent and mobile stationkeeping systems
           A.1.7 Mooring line components
      A.2 Normative references
      A.3 Terms and definitions
      A.4 Symbols and abbreviated terms
      A.5 Overall considerations
           A.5.1 Functional requirements
           A.5.2 Safety requirements
           A.5.3 Planning requirements
           A.5.4 Inspection and maintenance requirements
           A.5.5 Analytical tools
      A.6 Design requirements
           A.6.1 Exposure levels
           A.6.2 Limit states
           A.6.3 Defining design situations
           A.6.4 Design situations
      A.7 Actions
           A.7.1 General
           A.7.2 Site-specific data requirements
           A.7.3 Environmental actions on mooring lines
           A.7.4 Indirect actions
      A.8 Mooring analysis
           A.8.1 Basic considerations
           A.8.2 Floating structure offset
           A.8.3 Floating structure response
           A.8.4 Mooring line response
           A.8.5 Line tension
           A.8.6 Line length and geometry constraints
           A.8.7 Anchor forces
           A.8.8 Typical mooring configuration analysis and
                  assessment
           A.8.9 Thruster-assisted moorings
           A.8.10 Transient analysis of floating structure motions
      A.9 Fatigue analysis
           A.9.1 Basic considerations
           A.9.2 Fatigue resistance
           A.9.3 Fatigue analysis procedure
      A.10 Design criteria
           A.10.1 Floating structure offset
           A.10.2 Line tension limit
           A.10.3 Grounded line length
           A.10.4 Anchoring systems
           A.10.5 Fatigue safety factor
           A.10.6 Corrosion and wear
           A.10.7 Clearances
           A.10.8 Supporting structures
      A.11 Mooring hardware
           A.11.1 Mooring line components
           A.11.2 Winching equipment
           A.11.3 Monitoring equipment
      A.12 In-service inspection, monitoring and maintenance
           A.12.1 General
           A.12.2 Mobile moorings
           A.12.3 Permanent moorings
      A.13 Dynamic positioning system
           A.13.1 Basic considerations
           A.13.2 Design and analysis
           A.13.3 Design, test and maintenance
           A.13.4 Operating personnel
           A.13.5 Determination of stationkeeping capability
      A.14 Synthetic fibre rope mooring
           A.14.1 Basic considerations
           A.14.2 Fibre rope mooring analysis
           A.14.3 Fatigue analysis
           A.14.4 Creep analysis
           A.14.5 Design criteria
           A.14.6 Model testing
Annex B (informative) Regional information
      B.1 Introduction
          B.1.1 General comments to the regional information
          B.1.2 Specific comments to the regional information
      B.2 Offshore Norway
          B.2.1 Description of region
          B.2.2 Regulatory framework
          B.2.3 Technical information
          B.2.4 Technical commentary
          B.2.5 Additional national requirements
Bibliography

Specifies methodologies for: a) the design, analysis and evaluation of stationkeeping systems for floating structures used by the oil and gas industries to support production, storage, drilling, well intervention and production, production and storage, drilling, well intervention, production and storage, and b) the assessment of stationkeeping systems for site-specific applications of mobile offshore units (e.g. mobile offshore drilling units, construction units, and pipelay units).