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BS EN ISO 13628-10:2006

BS EN ISO 13628-10:2006

$215.11

Petroleum and natural gas industries. Design and operation of subseaprod uction systems – Specification for bonded flexible pipe

Published By Publication Date Number of Pages
BSI 2006 84
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1.1 Purpose

1.1.1 This part of ISO 13628 defines the technical requirements for safe, dimensionally and functionally interchangeable bonded flexible pipes that are designed and manufactured to uniform standards and criteria. See Figure 1 for explanatory figure on typical bonded flexible pipe.

1.1.2 Minimum requirements are specified for the design, material selection, manufacture, testing, marking and packaging of bonded flexible pipes, with reference to existing codes and standards where applicable. See API RP 17B for guidelines on the use of flexible pipes and ancillary components.

PDF Catalog

PDF Pages PDF Title
9 Foreword
10 Introduction
11 INTERNATIONAL STANDARD
ISO 13628-10:2005(E)
Petroleum and natural gas industries — Design and operation
Part 10:
1 Scope
1.1 Purpose
Figure 1 — Typical bonded flexible pipe
12 1.2 Products
1.2.2 This part of ISO 13628 does not apply to flexible pipe ancillary components. Guidelines for ancillary
1.2.4 This part of ISO 13628 can be applied to a bonded construction pipe that includes a material or layer
1.3 Applications
Normative references
15 3 Terms, definitions and abbreviations
3.1 Terms and definitions
API Monogram
3.1.4
3.1.5
3.1.6
3.1.7
16 3.1.9
3.1.11
3.1.12
3.1.14
3.1.15
3.1.16
17 3.1.18
3.1.19
3.1.20
3.1.21
3.1.23
3.1.24
3.1.25
3.1.26
18 3.1.28
3.1.29
3.1.31
3.1.32
3.1.33
3.1.34
3.1.35
3.1.36
3.1.37
19 3.1.38
3.1.39
3.1.40
3.1.42
3.1.46
3.1.47
3.1.48
20 3.1.51
3.1.52
3.1.53
3.1.54
3.2 Symbols and abbreviations
21 σ y
Material ultimate stress
4 Functional requirements
4.1 General
4.1.1 The purchaser shall specify the functional requirements for the flexible pipe. The purchasing
4.1.2 Functional requirements not specifically required by the purchaser which may affect the design,
4.1.3 Regulatory authority functional requirements that may affect the design, materials, manufacturing and
4.1.4 If the purchaser does not specify a requirement, and 4.1.2 does not apply, the manufacturer may
4.1.6
4.2 Overall requirements
4.2.1 Flexible pipe
Material yield stress
22 4.3 General design parameters
4.4 Internal fluid parameters
4.4.1 General
Table 1 — Internal fluid parameters
4.4.2 Internal pressure
23 4.4.3 Temperature
4.4.3.1 The following temperatures shall be specified:
4.4.4 Fluid composition
24 4.5 External environment
Table 2 — External environment parameters
4.6 System requirements
4.6.1 Minimum system requirements
4.6.1.1 General
4.6.1.1.2 The purchaser should specify the documentation, as listed in Clause 8, to be delivered by the
4.6.1.2 Application definition
4.6.1.3 Corrosion protection
25 4.6.1.4 Thermal insulation
4.6.1.5 Gas permeation
4.6.1.6 Pigging and TFL requirements
4.6.1.7 Fire resistance
4.6.1.8 Piggyback lines
4.6.1.9 Connectors
4.6.1.10 Interface definitions
4.6.1.11 Inspection and condition monitoring
26 4.6.1.12 Installation requirements
4.6.1.12.1 The purchaser should specify performance requirements for installation services to be provided,
4.6.1.12.2 The purchaser should specify any requirements for recoverability and reusability of the flexible
4.6.1.13 Exothermal chemical reaction cleaning
4.6.2 Static pipe parameters
Table 3 — Static pipe parameters
27 4.6.3 Dynamic pipe parameters
Table 4 — Dynamic pipe parameters
5 Design requirements
5.1 Loads and load effects
5.1.1 General
5.1.2 Definition of load classes
5.1.2.1 As listed in Table 5, loads are classified as functional, environmental (external) or accidental,
28 Table 5 — Combinations of load classes and load conditions
29 5.1.3 Load combinations and conditions
5.1.3.5 The design load cases to be analyzed shall be derived from the loading conditions specified in
Table 6 — Flexible pipe layer design criteria
30 5.1.4 Design load effects
5.2 Pipe design methodology
31 5.2.4 It shall be shown that variations in dimensions within manufacturing tolerances do not change
5.2.5 The calculation of the thickness for all metallic layers shall include allowances for wear between the
5.3 Pipe structure design
5.3.1 Design criteria
5.3.1.1 The pipe layers shall be designed to the criteria specified in Table 6, subject to the requirements
5.3.1.4 The utilization for cables of reinforcing layers shall be calculated as
5.3.1.5 The utilization for the cover shall be calculated based on the maximum allowable strain, subject to
32 5.3.2 Design requirements for pipe layers
5.3.2.1 Liner
5.3.2.1.1 As a minimum, the liner shall be analyzed for the following load cases:
5.3.2.1.3 The methodology used for calculating the wall thickness of the liner shall be validated by
5.3.2.2 Cover
33 5.3.2.3 Internal carcass
5.3.2.3.1 The design of the internal carcass shall account for the following.
5.3.2.4 Reinforcing layers
5.3.2.4.2 The complete pipe structure shall be designed such that the torsional balance and compression
5.3.2.5 Additional layers
5.3.2.5.1 Thermal insulation layers shall be designed in accordance with the requirements of 5.4.3.
5.3.2.5.2 Breaker layers shall be demonstrated not to contribute to delamination of elastomer layers in their
5.3.3 End fitting
34 5.3.3.3 In the design of the end fitting, axial movements of the carcass relative to the end fitting shall be
5.3.3.4 Accounting for all physically possible load combinations, the following design requirements shall
σ t u n × σ y
σ t is the tensile hoop stress;
is the permissible utilization factor, as specified in Table 7.
5.3.3.6 Selection of end fitting materials shall be in accordance with the requirements of Clause 6.
Table 7 — End fitting permissible utilization factors
5.3.4 Service life analysis
5.3.4.1 Service life – Static applications
35 5.3.4.1.2 Service life for sweet service applications shall be determined as follows, subject to the
5.3.4.1.3 Service life for sour-service applications shall be determined as follows, subject to the
5.3.4.2 Service life — Dynamic applications
5.3.4.2.4 Service life for sweet-service applications shall be determined as follows, subject to the
5.3.4.2.5 Service life for sour-service applications shall be determined as follows, subject to the
5.3.4.3 Fatigue analysis
36 5.4 System design requirements
5.4.1 General
Table 8 — System-related pipe design requirements
5.4.1.3 For dynamic riser applications, interference/clashing with other components of the system,
5.4.1.5 The lateral and longitudinal elastomer/soil friction coefficients shall be documented for the cover
5.4.2 Corrosion protection
5.4.2.1 Galvanic corrosion
37 5.4.2.2 Surface treatment
5.4.2.3 Corrosion allowance
5.4.2.3.2 Corrosion in the carcass or cables of the reinforcing layers at the end-fitting interface shall not
5.4.2.4 Cathodic protection
5.4.3 Thermal insulation
5.4.4 Gas venting
5.4.4.1 The gas-venting system shall be designed in accordance with the requirements of 4.6.1.5 and the
5.4.4.2 The design of all layers in the pipe shall allow for permeated gas to be vented.
38 5.4.5 Pigging and TFL operations
5.4.6 Fire resistance
5.4.6.2 Fire-resistance requirements specified by the purchaser should consider the following:
39 6 Materials
6.1 Material requirements
6.1.1 General
6.1.2 Elastomer materials
6.1.2.1 General
6.1.2.2 Liner
40 Table 9 — Property requirements tests for elastomer materials
6.1.2.3 Breaker layers
6.1.2.4 Reinforcing layer
41 6.1.2.5 Cover
6.1.2.5.1 The manufacturer shall document the properties specified in Table 9 for the cover material.
6.1.2.6 Insulation layer
6.1.2.6.3 ASTM C335 may be used to test the overall heat transfer properties of the insulation layer.
6.1.3 Metallic materials
6.1.3.1 General
6.1.3.2 Carcass
6.1.3.2.4 The material selection for the carcass shall account for the installation conditions, in particular if
6.1.3.3 Reinforcing layer
6.1.3.3.1 The manufacturer shall document the properties and characteristics specified for the cables of the
42 Table 10 — Property requirements tests for metallic cables and strip materials and weldments
6.1.4 End fitting
6.1.4.1 Metallic materials
6.1.4.1.4 For applications requiring weld overlay, all surfaces exposed to the conveyed fluid shall be
43 6.1.4.2 Epoxy material
6.2 Qualification requirements
6.2.1 General
6.2.1.1 Test requirements
6.2.1.2 Test data
6.2.1.3 Applicability
6.2.1.4 Test methods
44 6.2.2 Elastomer materials
6.2.2.1 Samples used for qualification testing shall be taken from vulcanized material. Tests shall be
Table 11 — Test procedures for elastomer materials
45 6.2.3 Elastomer test procedures
6.2.3.1 Fluid permeability
6.2.3.1.1 For fluid permeability tests the following conditions shall apply, as a minimum.
6.2.3.1.3 The fluid permeability test shall also measure the diffusivity and solubility parameters of the
6.2.3.2 Blistering resistance
6.2.3.2.1 The requirements of 6.2.3.2 apply to pipes intended for live crude and gas service only.
46 6.2.3.3 Fluid compatibility
6.2.3.4 Aging
6.2.3.5 Void formation
6.2.3.5.2 The acceptance criteria shall be that no visible voids shall form.
6.2.4 Metallic materials
6.2.4.1 Test requirements
47 Table 12 — Test procedures for metallic materials (carcass strip, reinforcement cables)
6.2.4.2 SSC and HIC testing
6.2.4.3 Erosion resistance
6.2.4.4 Fatigue resistance
48 6.2.5.1 Metallic materials
49 6.2.5.2 Epoxy material
6.2.5.3 Shear strength test
6.2.5.3.2 The relationship between shear strength and temperature of the cured epoxy material shall be
6.3 Quality assurance requirements
6.3.1 General
6.3.1.2 All suppliers to the manufacturer shall have a documented quality assurance system.
6.3.1.4 Test results shall conform to the manufacturer’s specifications. The results of all tests made by
6.3.1.5 For the liner, elastomers shall be 100 % virgin material containing no regrind or other previously
50 6.3.2 Documentation requirements
6.3.3 Storage
6.3.4 Traceability
Table 13 — Minimum quality control test requirements – Raw material
51 Table 14 — Requirements of material specifications
7 Manufacturing requirements
7.1 Quality assurance requirements
7.1.1 General
7.1.1.3 Quality control requirements for materials to be used in the pipe manufacture shall be as specified
7.1.2 Documentation
7.1.2.2 The manufacturer’s specification and procedures documentation shall be available for review by
52 7.1.3 Process control
7.1.4 Handling during manufacture
7.1.4.2 The condition of all reels and carousels shall be such that any damage induced in the pipe is
7.1.4.3 The manufacturer shall use documented procedures for the handling of flat or shaped wires
7.1.4.4 Manufacturer’s procedures shall include a plan for inspection and refurbishment of forming tools
7.2 Carcass
7.2.1 General
53 7.2.2 Inspection and acceptance criteria
7.3 Preparation of compound and calendering
7.3.1 General
7.3.2 Preparation of compound
7.3.3 Calendering
7.3.4 Inspection and acceptance criteria
54 7.3.5 Test requirements
Table 15 — Minimum material quality control test requirements – Compound
7.4 Elastomer winding
7.4.1 General
7.4.1.2 The manufacturer should ensure that all windings are onto a clean and dry underlying layer.
7.4.1.3 During winding, the following process parameters shall be monitored and recorded, and shall
7.4.2 Inspection and acceptance criteria
7.4.2.1 Visual examination
55 7.4.2.2 Dimensional measurements
7.5 Reinforcement armour layer
7.5.1 General
7.5.2 Inspection and acceptance criteria
7.6 Insulation layers
7.6.1 General
7.6.2 Inspection and acceptance criteria
7.7 End fitting
7.7.1 General
56 7.7.2 Assembly
7.7.2.2 Control features shall be established and documented to ensure that overheating of epoxy or
7.7.3 Inspection and acceptance criteria
7.7.3.1 For the end-fitting assembly, hold points shall be included where visual examination, dimensional
7.7.3.2 For components requiring a specific tightening force or torque, including swaging machines, it
7.7.4 Test requirements
7.7.4.1 Minimum test and inspection requirements for primary end fitting components shall be as follows
7.7.5 Connectors
57 7.8 Curing process
7.8.1 General
7.8.2 Handling
7.8.2.1 The manufacturer shall have documented procedures for handling the pipe during construction.
7.8.2.2 The manufacturer shall use documented procedures for removing the pipe from mandrels after
7.8.3 Inspection and acceptance criteria
7.8.3.1 Visual inspection
7.8.3.2 Dimensional measurements
7.8.3.3 Test requirements
7.8.3.3.2 All test results shall be recorded and shall conform to the manufacturer’s specifications.
7.8.3.3.3 The sample shall also be dissected and inspected for voids in accordance with manufacturer’s
58 7.9 Special processes
7.9.1 Welding
7.9.1.1 Qualification
7.9.1.1.2 The manufacturer shall have documented procedures for storage, handling and drying of welding
7.9.1.2 Carcass
7.9.1.2.1 Strip welds for carcass join-up shall be subjected to a visual examination. Results from all tests
7.9.1.2.2 Weld metal for carcass join-up shall be ground smooth to prevent damage to adjoining elastomer
7.9.1.2.3 Butt welds for joining carcass strips, and carcass join-up welds, shall be subjected to the following
7.9.1.3 End fitting
7.9.2 Heat treatment
7.9.3 Coating
59 7.9.3.2 The procedure for qualification of the metallic coating processes to be applied to the end fitting
7.9.4 Pipe wall lay-up
7.9.4.1 All curing process operations shall be performed in accordance with the manufacturer’s qualified
60 7.10 Manufacturing tolerances
7.10.3 If dimensional criteria are based on manufacturing considerations rather than design considerations,
7.10.4 The maximum gap between cables is one cable diameter.
7.11 Repairs
7.11.2 Repair of the liner is not permitted. Unacceptable defects found in this layer shall result in the
7.11.5 Procedures for repair of damage to surface protection coatings shall be available for review by the
61 8 Documentation
8.1 General
8.1.1
8.1.2 The manufacturer shall have available for the purchaser the following documents and should have
8.1.3 Issue of the above documents by manufacturer to purchaser shall be in accordance with the
8.2 Design premise
8.3 Design load report
8.4 Design report
8.4.4 The design report shall specify the following properties for the flexible pipe:
62 8.4.5 The design report shall define the following properties for the flexible pipe, if specified by the
8.4.6 The independent verification agent’s certificate for the design methodology (see 5.2) shall be included
8.5 Manufacturing quality plan
8.6 Fabrication specification
8.7 As-built documentation
63 Table 16 — Documentation requirements for the design premise
8.8 Operation manual
64 8.8.2 If specified by the purchaser, a separate installation manual shall be supplied and this shall document
9 Factory acceptance tests
9.1 General
65 9.1.6 Tests, as applicable (see Table 17), shall be conducted in the sequence listed in Clause 9.
9.2 Gauge test
9.2.1 Procedure
9.2.1.1 The gauging pig shall be equipped with (a) disk(s) capable of detecting any unacceptable
9.2.1.2 The minimum diameter of the gauging pig shall be at least 95 % of the nominal ID or 10 mm
9.2.2 Acceptance criteria
9.3 Hydrostatic pressure test
9.3.1 Procedure
9.3.1.2 Trapped air shall be removed from the pipe in accordance with manufacturer’s procedures.
9.3.1.4 The timing of the test shall not start until the equipment and pressure-monitoring gauge have
9.3.1.6 After depressurization, the end-fitting areas shall be visually examined for any sign of permanent
66 9.3.2 Acceptance criteria
9.4 Electrical continuity and resistance tests
9.4.1 Procedure
9.4.2 Acceptance criteria
9.5 Kerosene test
9.5.1 Procedure
9.5.2 Acceptance criteria
9.6 Vacuum test
9.6.1 Procedure
9.6.2 Acceptance criteria
67 Table 17 — Factory acceptance test
10 Marking and packaging
10.1 Marking
10.1.2 If requested by the customer, the following markings may be applied:
10.2 Packaging
68 10.2.3 If the pipe is to be installed off the reel and free flooded, the inboard end fitting shall be vented.
69 Annex A
Purchasing guidelines
A.1 General
A.1.1 Table A.1 gives purchasing guidelines for flexible pipes.
A.1.2 A separate form should be completed for each length of flexible pipe.
A.1.3 The manufacturer should specify in the design premise the values assumed for all parameters in
Table A.1 — Flexible pipe purchasing guidelines
70 Table A.1 ( continued )
76 Annex B
Bend stiffeners and bend restrictors
B.1 Scope
B.2 Definitions
Section showing bend restrictor
Side elevation
Figure B.1 — Schematic of a bend restrictor
77 B.3 Functional requirements
B.3.1 The manufacturer should demonstrate that the bend limiter meets the functional requirements
B.3.2 Bend stiffeners are typically used only for dynamic applications, and bend restrictors are typically
B.3.5 The designer of the bend limiter should specify all necessary mounting components.
B.4 Design requirements
B.4.1 The design methodology for bend limiters should be documented and verified by tests or finite
B.4.3 For bend stiffeners, the design methodology should consider the following failure modes:
78 B.4.8 The tolerances used for all components of the bend limiter should be documented not to increase
B.4.10 For dynamic applications, fatigue life calculations or testing should be performed. The predicted
B.5 Materials and manufacture
B.5.2 The polymer material property requirements should include the following as a minimum, for the
B.5.3 All materials of the limiter should be resistant to seawater, chemical exposure, ultraviolet exposure,
79 B.5.8 The injection process used in the manufacture of the bend limiter should not leave any voids in the
B.6 Documentation
B.6.1 The manufacturer should supply to the purchaser the following documents at the specified times:
B.6.3 The manufacturing quality plan should specify all quality control procedures, including inspection
B.6.4 The as-built documentation should include drawings, design data, dimensional inspection reports,
B.7 Marking and packaging
B.7.2 Packaging of the bend limiter should ensure its safety in all transport stages prior to installation.
80 Table B.1 — Purchasing guidelines for bend limiters
81 Annex C
Use of the API Monogram
82 Bibliography

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BS EN ISO 13628-10:2006
$215.11