Standard for Repair and Remanufacture of Drill-through Equipment

API STANDARD 16AR FIRST EDITION, APRIL 2017

Special Notes

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Copyright © 2017 American Petroleum Institute

Foreword

This standard shall become effective on the date printed on the cover but may be used voluntarily from the date of distribution.

Standards and specifications referenced herein may be replaced by other international or national standards or specifications that can be shown to meet or exceed the requirements of the referenced standard or specification. Manufacturers or remanufacturers electing to use another standards or specifications in lieu of a referenced standard or specification are responsible for documenting equivalency.

This standard is under the jurisdiction of the API Subcommittee on Drilling Well Control Systems. This standard replaces the repair and remanufacture requirements from API 16A.

Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.

Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the standard.

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

May: As used in a standard, “may” denotes a course of action permissible within the limits of a standard. Can: As used in a standard, “can” denotes a statement of possibility or capability.

This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director.

Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005.

Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standards@api.org.

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Contents

Page

1. Scope 1

2. Normative References 4

3. Terms, Definitions, Acronyms, and Abbreviations 6

   1. Terms and Definitions 6

   2. Acronyms and Abbreviations 15

4. Quality Control Requirements 17

   1. General 17

   2. Measuring and Testing Equipment 17

   3. Quality Control Personnel Qualifications 18

   4. Quality Control Requirements for Equipment and Parts 19

   5. Quality Control Requirements for Specific Equipment and Parts 20

   6. Quality Control Records 29

   7. Repair and Remanufacture Service Levels 31

5. Quality Management System Requirements 33

   1. General 33

   2. Control of Documents 33

   3. Training and Awareness 34

   4. Control of Testing, Measuring, and Monitoring Equipment 34

   5. Contract Review 35

   6. Purchasing Control 35

   7. Design and Development 35

   8. Control of Nonconforming Product 37

6. Responsibilities 37

   1. General 37

   2. Manufacturer 37

   3. Remanufacturer 38

   4. Equipment Owner 38

7. Repair/Remanufacture Specification Level Minimum Requirements 38

   1. General 38

   2. Factory Acceptance Testing 39

   3. Dimensional Check 43

   4. NDE-Initial Inspection 44

   5. Inspection on Closure Bolting (Pressure Retaining) 44

   6. Visual Inspection at Disassembly 44

   7. Replacement Parts 45

   8. General Equipment Specifications 45

   9. Documentation 45

   10. Failure Reporting 45

8. Materials 45

   1. General 45

   2. Metallic Parts 46

   3. Nonmetallic Parts 46

   4. Base Metal Material Identification 47

   5. Pressure-containing Members 48

9. Welding Requirements 53

   1. General 53

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      Contents

      Page

   2. Weldment Design and Configuration 53

   3. Welding Controls 56

   4. Welding Procedure and Performance Qualifications 58

   5. Other Welding Qualification requirements 60

   6. Other Requirements 66

   7. Documentation Requirements 66

10. Marking Requirements 66

    1. General 66

    2. Low-stress Area Marking 68

    3. High-stress Area Marking 68

    4. Corrosion-resistant Overlay 68

    5. Wellbore Nonmetallic Components 68

    6. Non-wellbore Nonmetallic Components 68

    7. Specific Codification Requirements of Equipment 68

11. Storing and Shipping 69

    1. Storing Periods Greater than 30 Days 69

    2. Shipping 69

12. Certification 70

    1. General 70

    2. Certificate of Conformance 70

    3. Statement of Compatibility 70

    4. Statement of Fact 70

    5. Certificate of Service 70

Annex A (normative) General Equipment Specifications 71

Annex B (normative) Manufacturing Data Book Requirements 73

Annex C (normative) Product History File Requirements 75

Annex D (normative) Failure Reporting 77

Annex E (normative) Design Ownership 78

Annex F (normative) Minimum Requirements for Certificate of Conformance 79

Annex G (informative) Recommended Weld Preparation Design Dimensions 81

Annex H (normative) Qualification of Heat Treating Equipment 84

Annex I (normative) Equivalent Round Models 87

Annex J (normative) Remanufacture and Replacement Parts 89

Annex K (normative) Charpy V-notch Impact Tests Location for Weld Qualification 90

Annex L (normative) Minimum Requirements for Statement of Compatibility 92

Figures

1. Simplified Example of Surface Drill-through Equipment 2

2. Simplified Example of Subsea Drill-through Equipment 3

3. Logic for Classification as Corrosion Resistant 55

4. Rockwell Hardness Test Locations 61

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   Contents

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5. Vickers Hardness Test Locations 62

6. Hardness Test Locations for Weld Overlay 63

7. Typical Mechanical Specimen Removal for Welding Procedure Qualification 67

E.1 Design Ownership Flow Diagram 78

1. Typical Weld Grooves for Pipe Butt Joints 81

2. Typical Attachment Welds 82

3. Typical Repair Welds 83

4. Repairs 83

1. Thermocouple Locations—Rectangular Furnace (Working Zone) 85

2. Thermocouple Locations—Cylindrical Furnace (Working Zone) 86

1. Simple Geometric Equivalent Round Sections/Shapes Having Length L 87

2. Complex-shaped Components 87

3. Equivalent Round Models 88

J.1 Flow Diagram for Remanufactured and Replacement Parts 89

K.1 Location of Charpy V-notch Impact Test 91

Tables

1. Weld Inclusion Criteria 24

2. Minimum Hardness Requirement 26

3. Bolting Requirement 29

4. Quality Control Requirements 32

5. Material Property Requirements for Pressure-containing Members 49

6. Material Applications for Pressure-containing Members 49

7. Acceptance Criteria for Charpy V-notch Impact Tests 51

8. Chemical Composition of Austenitic or 300-series Stainless Steels 64

9. Chemical Composition of the Nickel-based Alloy UNS06625 65

Standard for Repair and Remanufacture of Drill-through Equipment

1 Scope

This standard specifies requirements for repair and remanufacture of drill-through equipment built under API 16A. This standard also applies to repair and remanufacture of drill-through equipment manufactured to API 6A requirements and produced prior to the existence of API 16A.

This standard also covers the testing, inspection, welding, marking, certification, handling, storing, and shipping of equipment repaired or remanufactured per this standard.

Repair and remanufacture under this standard includes all remanufacture and all repairs.

This standard is applicable to and establishes requirements for the repair and remanufacture of the following specific equipment:

1. ram blowout preventers (BOPs);

   
   

2. ram blocks, operators, packers, and top seals;

   
   

3. annular BOPs;

   
   

4. annular packing units;

   
   

5. hydraulic connectors;

   
   

6. drilling spools;

   
   

7. adapters;

   
   

8. loose connections;

   
   

9. clamps;

   
   

10. API 6A flanges;

    
    

11. other end connections (OECs).

Dimensional interchangeability is limited to end and outlet connections. Simplified examples of surface and subsea equipment defined by this standard are shown in Figures 1 and 2.

Maintenance activities are not governed by this document, but the documentation of those activities is included in the scope.

This standard defines various repair/remanufacture specification levels (RSLs) for the equipment identified below as well as the mandatory equipment traceability that is required to prove conformance.

Requirements for failure reporting are outlined in Annex D.

1

2 API STANDARD 16AR

Figure 1—Simplified Example of Surface Drill-through Equipment