DNV Introduction
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DNV standards
Transcript of DNV Introduction
Regulations Pipelines & Subsea
10. Mars 2009Olav Fyrileiv - DNVAnders Husby - DNV
Pipeline Technology Basic Course Slide 204 March 2009
Objectives of Presentation
Governing requirements in a project development
How have authorities organised the regulations?
DNV codes for pipelines overview & safety format
Regulations for subsea
Pipeline Technology Basic Course Slide 304 March 2009
Governing requirements in a project
Frame agreement specifications
ProjectDesign premise
Auth.Rules & Reg.
Selected standards (ISO, Norsok, DNV, API, ASME etc.)
Operation &Maint. Req's
Functional andTechnical Req's
Authorities
Operator
Standards
Pipeline Technology Basic Course Slide 404 March 2009
Authority control
How have authorities organised the regulations?
Pipeline Technology Basic Course Slide 504 March 2009
API
Petroleum-tilsynet
Authority control
Petroleumsloven
Guidelines
FrameRegulation
Supplementary regulations
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Installation regulation
$10 Loads, load effects and resistance Loads that may affect installations or parts thereof, shall be quantified.
Guideline
To $10 Loads, load effects and resistanceTo satisfy the requirements to loads, load effects, resistance and combinations of loads on the pipeline system the following standards should be used: ISO 13623 section 6 and DNV OS-F101 section 3, 4 and 5 for rigid pipelines,
DNV-OS
DNV-RP
DNV-OSS
Certification
Detailed requirem
ents
Pipeline Technology Basic Course Slide 604 March 2009
Petroleumstilsynet
ISO How detailed are these?
Petroleumsloven
ISOAPI
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DNV-OS
DNV-RP
DNV-OSS
Certification
Detailed requirem
ents
13623
3183
Pipeline Technology Basic Course Slide 704 March 2009
Conditions for development of codes
ISO- Developed by committees- Rely on knowledge and resources of the individual committee members - Tries to achieve consensus
DNV - DNV-OS-F101 is based on Joint Industry Projects with the resources to perform work- DNV is dependent on good relations with the industry and send all offshore codes on
external hearings. As a result, the offshore codes are updated prior to final issue. Enables DNV to respond more promptly to industry needs.
Pipeline Technology Basic Course Slide 804 March 2009
Recommended PracticesDNV-RP
Offshore StandardDNV-OS
Offshore Service Specification
DNV-OSS
DNV Offshore Codes
Quali
ty &S
afety
Stru
ctur
es Systems
Special FacilitiesPipelines & RisersM
ateria
ls Te
chno
logy FA B C D E
Clas
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Shelf
Com
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Cert.RECOMMENDED PRACTICE
RP-F102PIPELINE FIELD JOINT COATING
AND FIELD REPAIR OFLINEPIPE EXTERNAL COATING
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F102
PIPELINE FIELD JOINT COATING AND FIELD REPAIR OF
LINEPIPE EXTERNAL COATING
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F103
CATHODIC PROTECTION OF SUBMARINE PIPELINES
BY GALVANIC ANODES
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F103
CATHODIC PROTECTION OF SUBMARINE PIPELINES
BY GALVANIC ANODES
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F10X
STRUCTURAL DESIGN OF HIGH PRESSURE/HIGH TEMPERATURE
PIPELINES
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F10X
STRUCTURAL DESIGN OF HIGH PRESSURE/HIGH TEMPERATURE
PIPELINES
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F203
COUPLED ANALYSES
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F203
COUPLED ANALYSES
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F204
RISER FATIGUE
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F204
RISER FATIGUE
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F205
RISER COLLISION
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F205
RISER COLLISION
DET NORSKE VERITAS
RECOMMENDED PRA CTICERP-F1XX
On Bottom Stability of pipelines
DET NORSKE VERITAS
RECOMMENDED PRA CTICERP-F1XX
On Bottom Stability of pipelines
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F1XX
On Bottom Stability of pipelines
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F1XX
Installation calculation Procedures of pipelines
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F1XX
On Bottom Stability of pipelines
DET NORSKE VERITAS
RECOMMENDED PRACTICERP-F1XX
Interference between Trawl gear and pipelines
DET NORSKE VERITAS
Pipeline Technology Basic Course Slide 904 March 2009
Offshore Service Specification (OSS)
Scope of work for certification and verification
Involvement in three degrees (low, normal or high)
Pipeline Technology Basic Course Slide 1004 March 2009
Offshore Standard (OS)
Enables the operators to reduce CAPEX while maintaining integrity
Technical requirements- No references to DNV
Harmonised with ISO- ISO 13623 Pipeline Transportation
Systems- ISO 3183 Linepipe
Limit state based design criteria
Calibrated safety factors
Pipeline Technology Basic Course Slide 1104 March 2009
RP for pipeline applications
1995 2000 2005 2010
RP-F101 Corroded pipelines
RP-F102 FJC
RP-F103 CP design
RP-F104 Mechanical couplings
RP-F105 Free spans
RP-F106 External coating
RP-F107 Protection
RPF-108 Reeling
RP-F109 On bottom stab.
RP-F110 Global buckling
RP-F111 Trawling
RP-F112 HISC
RP-F113 Repair
Laying criteria
JIP1st rev.JIP2nd rev.JIP3rd. Rev.Superseeded
Pipeline Technology Basic Course Slide 1204 March 2009
What do you think?
What shall be the premises for designing a structure from structural point of view?
Pipeline Technology Basic Course Slide 1304 March 2009
Safety Philosophy
Pipeline Technology Basic Course Slide 1404 March 2009
The design shall also consider the consequence!
Safety philosophy
But some buildings are design for the unlikely event of aeroplane impacts!
Pipeline Technology Basic Course Slide 1504 March 2009
Safety philosophy
Criteria for modern design
A pipeline shall be designed considering the likelihood of loads and consequence of failure!
Pipeline Technology Basic Course Slide 1604 March 2009
Safety philosophy
Risk is a combination of- Probability of failure- Consequence of failure
Risk/SafetyR ~ P C
Pipeline Technology Basic Course Slide 1704 March 2009
Safety Philosophy
A pipeline shall be designed considering the likelihood of loads and consequence of failure!
The pipeline shall be designed so that the risk is acceptable!
Pipeline Technology Basic Course Slide 1804 March 2009
What do you think?
What is acceptable risk?
Pipeline Technology Basic Course Slide 1904 March 2009
Consequences
The consequences are normally divided into- Human- Environmental- Economical
For pipelines, this can normally be expressed in terms of:- Content (Environment)- Location class (Human)
The consequences are divided into Safety Classes,
Hence, the safety class depend on- Content- Location
Pipeline Technology Basic Course Slide 2004 March 2009
Phase Fluid Category A and C
Fluid Category B, D and E
Location Class Location Class 1 2 1 2 Temporary Low Low - -
Operational Low Medium (Normal)
Medium(Normal)
High
Installation
Water and air
Off-platform zone
Near-platform zone
Off-platform zone Near-platform
zone
Other
Safety Class selection - Normal case
Pipeline Technology Basic Course Slide 2104 March 2009
603 As far as possible, nominal target failure probability levels shall be calibrated against identical or similar pipeline designs that are known to have adequate safety on the basis of this standard. If this is not feasible, the nominal target failure probability level shall be based on the failure type and safety class as given in Table 2-5.
Target safety levels
Pipeline Technology Basic Course Slide 2204 March 2009
Design philosophy of DNV-OS-F101
SystematicReview (QRA)
Safety Objective
Safety Class Methodology
Quality Assurance
Shall be established, plannedand implemented
No single failure shall lead to life threateningsituations or unacceptable damage to facilities
or the environment. Quantitative Risk Analysis
Safety Class depends on fluid, location and phase of project.
Partial Safety Factor methodology means that factored design loads do not exceed factored design resistance for any of the considered failure modes. The factors are related to limit states and calibrated for the different safety classes.
