Specification for Bonded Flexible Pipe

API SPECIFICATION 17K THIRD EDITION, AUGUST 2017

EFFECTIVE DATE: FEBRUARY 1, 2018

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Copyright © 2017 American Petroleum Institute

Foreword

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Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the specification.

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iii

Contents

Page

1. Scope 1

2. Normative References 1

3. Terms, Definitions, and Abbreviations 4

   1. Terms and Definitions 4

   2. Symbols and Abbreviations 12

4. Functional Requirements 14

   1. Purchasing 14

   2. General Design Parameters 15

   3. Internal Fluid Parameters 15

   4. External Environment 19

   5. System Requirements 19

5. Section Design Requirements 22

   1. Loads and Load Effects 22

   2. Pipe Design Methodology 25

   3. Pipe Structure Design 27

   4. System Design Requirements 33

6. Materials 37

   1. Material Requirements 37

   2. Testing Requirements 42

   3. Quality Assurance Requirements 50

7. Manufacturing Requirements 51

   1. Quality Assurance Requirements 51

   2. Carcass 53

   3. Preparation of Compound and Calendering 53

   4. Elastomer Winding 54

   5. Reinforcement Armor Layer 55

   6. Insulation Layers 56

   7. End Fitting 56

   8. Curing Process 57

   9. Processes Requiring Validation 58

   10. Manufacturing Tolerances 60

   11. Repairs 60

8. Documentation 61

   1. General 61

   2. Pipe Datasheet 62

   3. Design Premise 62

   4. Design Load Report 62

   5. Design Report 62

   6. Manufacturing Quality Plan 64

   7. Fabrication Specification 64

   8. As-built Documentation 65

   9. Operation Manual 65

9. Factory Acceptance Tests (FATs) 66

   1. General 66

   2. Gauge Test 67

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      Contents

      Page

   3. Hydrostatic Pressure Test 68

   4. Electrical Continuity and Electrical Isolation Tests 69

   5. Kerosene Test 70

   6. Vacuum Test 70

   7. Tensile Test for SWI (Seawater Intake) Pipe 70

10. Marking and Packaging 71

    1. Marking 71

    2. Packaging 72

Annex A (informative) API Monogram Program-Use of the Monogram Program by Licensees 73

Annex B (informative) Purchasing G 76

Annex C (informative) Flexible Pipe Datasheet 83

Bibliography 84

Figures

1 Internal Pressure Definitions 16

Tables

1. Internal Fluid Parameters 15

2. Internal Pressure Definitions 17

3. Temperature Definitions 18

4. External Environment Parameters 19

5. Flowline and Riser Parameters 22

6. Load Combinations of Load Classes, Load Conditions 23

7. Typical Load Classes 24

8. Flexible Pipe Layer Design Criteria 26

9. End-fitting Permissible Utilization Factors 31

10. System-related Pipe Design Requirements 34

11. Property Requirements Tests for Elastomer Materials 38

12. Property Requirements Tests for Metallic Cables and Strip Materials and Weldments 40

13. Property Requirements Tests for Nonmetallic Reinforcement Materials 41

14. Test Procedures for Elastomer Materials 44

15. Test Procedures for Metallic Materials (Carcass Strip, Reinforcement Cables) and Weldments 46

16. Test Procedures for Nonmetallic Reinforcement Materials 48

17. Minimum Quality Control Test Requirements—Raw Material 50

18. Requirements of Material Specifications 51

19. Minimum Material Quality Control Test Requirements—Compound 54

20. Documentation Requirements for the Design Premise 62

21. Factory Acceptance Test 67

B.1 Flexible Pipe Purchasing Guidelines 76

C.1 Flexible Pipe Datasheet Minimum Requirements 83

vi

Introduction

Users of this specification should be aware that further or differing requirements might be needed for individual applications. This specification is not intended to inhibit a vendor from offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual application. This may be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the vendor should identify any variations from this specification and provide details.

Figures 1a, 1b, and 1c provide examples of typical bonded flexible pipe covered by this specification.

Figure 1a—Typical Bonded Flexible Pipe—Flowline and Riser

Figure 1b—Typical Bonded Flexible Pipe—Loading and Discharge Hose

Figure 1c—Typical Bonded Hose—Body and End

Specification for Bonded Flexible Pipe

1. Scope

   
   

   This specification 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 an explanatory figure on typical bonded flexible pipe.

   
   

   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 17B for guidelines on the use of flexible pipes. Refer to API 17L1 and API 17L2 for the specification and recommended practice for ancillary equipment including buoyancy, bend limiters, bell mouths, and non-integral stand-alone bend stiffeners.

   
   

   This specification applies to bonded flexible pipe assemblies, consisting of segments of flexible pipe body with end fittings or integrated flanges attached to both ends. API 17K does not cover flexible pipes of unbonded structure. See API 17J for guidance on unbonded flexible pipes.

   
   

   This specification can be applied to flexible pipes that include nonmetallic reinforcing layers. This specification can be applied to a bonded construction pipe that includes a material or layer construction that is covered in API 17J.

   
   

   Supplementary requirements for loading and discharge hoses can be found in GMPHOM provided they do not contradict those of API 17K.

   
   

   The applications addressed by API 17K are for sweet and sour service production, including export and injection and seawater intake applications. Production products include oil, gas, water, and injection chemicals. This specification applies to both static and dynamic flexible pipes used as flowlines, risers, jumpers, and offshore loading and discharge hoses.

   
   

   This specification does not apply to flexible pipe ancillary components. Guidelines for ancillary components are given in API 17L1 and API 17L2. This specification does not apply to flexible pipes for use in choke and kill-line applications. See API 16C for guidance on choke and kill-line applications. This specification can be applied to flexible pipes for pile hammer, gas flare, water supply, and jetting applications, though no effort was made to address the specific and unique technological aspects relating to each of these requirements.

   
   

   If product is supplied bearing the API Monogram and manufactured at a facility licensed by API, the requirements of Annex A apply.

   
   

2. Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

API Specification 6A, Specification for Wellhead and Christmas Tree Equipment

API Recommended Practice 17B, Recommended Practice for Flexible Pipe

API Specification 17D, Specification for Subsea Wellhead and Christmas Tree Equipment

API Standard 1104, Welding of Pipelines and Related Facilities