Drill Pipe

API SPECIFICATION 5DP SECOND EDITION, MAY 2020

API MONOGRAM PROGRAM EFFECTIVE DATE: NOVEMBER 1, 2020 ERRATA 1, JULY 2020

Special Notes

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Copyright © 2020 American Petroleum Institute

Foreword

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

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Suggested revisions are invited and should be submitted to the Standards Department, API, 200 Massachusetts Avenue, Suite 1100, Washington, DC 20001, standards@api.org.

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Contents

Page

1. Scope 1

   1. Coverage 1

   2. Application of the API Monogram 1

2. Normative References 1

3. Terms, Definitions, Symbols, and Abbreviations. 3

   1. Terms and Definitions 3

   2. Acronyms, Abbreviations, and Symbols 7

4. Conformance 9

   1. References to Annexes 9

   2. Dual Referencing 9

   3. Units of Measurement 10

5. Information to Be Supplied by the Purchaser 10

6. Requirements for Drill Pipe 13

   1. General 13

   2. Dimensions, Masses, and Connections 13

   3. Material Requirements 15

   4. Process of Manufacture for Drill Pipe 16

   5. Traceability 17

   6. Inspection and Testing-General 17

   7. Testing of Welds 18

   8. Tensile Test 18

   9. Hardness Test 19

   10. Charpy V-notch Impact Test 20

   11. Transverse Side-bend Test 21

   12. Imperfections and Defects in Drill Pipe. 22

   13. Visual Inspection of the Drill Pipe Weld Zone 22

   14. Nondestructive Examination of the Weld Zone 23

   15. Marking of Drill Pipe 24

   16. Minimum Facility Requirements for Drill Pipe Manufacturers 26

   17. Documentation Requirements of Drill Pipe 26

7. Requirements for Drill Pipe Body 27

   1. Dimensional and Mass Requirements. 27

   2. Material Requirements 29

   3. Process of Manufacture 30

   4. Traceability 31

   5. Inspection and Testing-General 31

   6. Testing of Chemical Composition 31

   7. Tensile Tests 32

   8. Charpy V-notch Impact Tests 33

   9. Drill Pipe Body Wall Thickness 34

   10. Drill Pipe Body Length 34

   11. Internal Upset 34

   12. Internal Profile 35

   13. Straightness 35

   14. Upset Alignment 35

   15. Mass Determination 35

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       Contents

       Page

   16. Imperfections and Defects of Drill Pipe Body 35

   17. Visual Inspection of Drill Pipe Body 36

   18. Nondestructive Examination 37

   19. Marking 40

   20. Minimum Facility Requirements for Drill Pipe Body Manufacturer 41

   21. Documentation Requirements 41

8. Requirements for Tool Joints 42

   1. Dimensional Requirements 42

   2. Material Requirements 43

   3. Process of Manufacture 44

   4. Traceability 45

   5. Inspection and Testing-General 45

   6. Testing of Chemical Composition 45

   7. Tensile Tests 45

   8. Hardness Tests 47

   9. Charpy V-notch Impact Tests 47

   10. Imperfections and Defects 48

   11. Nondestructive Examination 49

   12. Marking 50

   13. Minimum Facility Requirements for Tool Joint Manufacturers 51

   14. Documentation Requirements for Tool Joints 51

Annex A (informative) API Monogram Program—Use of the API Monogram by Licensees 53

Annex B (normative) Figures in SI (USC) Units 57

Annex C (normative) Tables in USC Units 70

Annex D (normative) Tables in SI Units 90

Annex E (informative) Supplementary Requirements 110

Annex F (informative) Procedures used to Convert Units from USC to SI 113

Annex G (normative) Product Specification Levels 118

Annex H (normative) Purchaser Inspection 120

Annex I (informative) Bevel Diameters for Tool Joints with Non-preferred Connections 121

Bibliography 122

Figures

1. Drill Pipe 57

2. Example of a Typical Hook-type Tool 58

3. Location and Orientation of Mechanical Test Specimens for Weld 59

4. Reference Indicator for Drill Pipe Weld Zone 60

5. Example of Marking at the Base of Tool Joint Pin 60

6. Upset End for Drill Pipe Body 61

7. Drill Pipe Body—Measuring Full-length Straightness and End Straightness 62

8. Tensile Test Specimens for Drill Pipe Body 63

9. Location and Orientation of Mechanical Test Specimens for Drill Pipe Body 64

10. Upset and Tool Joint Alignment 65

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    Contents

    Page

11. Reference Indicator (Notch) for a Pipe Body 65

12. Tool Joint Pin and Box 66

13. Location and Orientation of Mechanical Test Specimens for Tool Joints 67

14. Hardness Test Locations 68

15. Tool Joint to Drill Pipe Alignment 69

Tables

1. Purchaser-supplied Information for Drill Pipe (Required) 10

2. Purchaser-supplied Information for Drill Pipe (Optional) 11

3. Purchaser-supplied Information for Drill Pipe Body (Required) 12

4. Purchaser-supplied Information for Drill Pipe Body (Optional) 12

5. Purchaser-supplied Information for Tool Joints (Required) 12

6. Purchaser-supplied Information for Tool Joints (Optional) 13

1. Drill Pipe—Main Dimensions and Mass 71

2. Drill Pipe Body OD Tolerances 76

3. Drill Pipe Length, L 76

4. Chemical Composition Requirements 76

5. Tensile Requirements 77

6. Total Gauge Extension at the Yield Strength for Drill Pipe Body 77

7. Minimum Pipe Body Elongation Values 78

8. CVN Longitudinal Absorbed Energy Requirements 80

9. Retention of Records 80

10. Test Frequency 81

11. Calculated Wall Thickness Required to Machine Longitudinal Charpy Impact Specimens 82

12. Drill Pipe Mass Code Number 84

13. Grade E Drill Pipe Body Dimensions, Tolerances, and Masses 85

14. Drill Pipe Body Dimensions, Tolerances, and Masses, Grades Other Than E 87

15. Drill Pipe Body Upset—Maximum Permissible Depth of Imperfections

    (Measured from the Surface) 89

16. Required Inspection Methods 89

17. Artificial Reference Indicators for the Drill Pipe Body. 89

1. Drill Pipe—Main Dimensions and Mass 91

2. Drill Pipe Body OD Tolerances 96

3. Drill Pipe Length, L 96

4. Chemical Composition Requirements 96

5. Tensile Requirements 97

6. Total Gauge Extension at the Yield Strength for Drill Pipe Body 97

7. Minimum Pipe Body Elongation Values 98

8. CVN Longitudinal Absorbed Energy Requirements 99

9. Retention of Records 100

10. Test Frequency 101

11. Calculated Wall Thickness Required to Machine Longitudinal Charpy Impact Specimens 102

12. Drill Pipe Mass Code Number 104

13. Grade E Drill Pipe Body Dimensions, Tolerances, and Masses 105

14. Drill Pipe Body Dimensions, Tolerances, and Masses, Grades Other Than E 107

15. Drill Pipe Body Upset—Maximum Permissible Depth of Imperfections

    (Measured from the Surface) 108

16. Required Inspection Methods 109

17. Artificial Reference Indicators for the Drill Pipe Body. 109

Contents

Page

G.1 Additional Requirements for PSL-2 and PSL-3 118

I.1 Non-preferred Connection Tool Joint Bevel Diameter 121

Drill Pipe

1. Scope

   
   

   1. Coverage

      
      

      This standard specifies the technical delivery conditions for steel drill pipe with upset pipe body ends and welded on tool joints for use in drilling and production operations in petroleum and natural gas industries for three product specification levels (PSL-1, PSL-2, PSL-3). The requirements for PSL-1 form the basis of this standard. The requirements that define different levels of standard technical requirements for PSL-2 and PSL-3 are provided.

      
      

      This standard covers the following grades of drill pipe:

      
      

      • grade E;

        
        

      • high-strength (grades G, S, X, and V);

        
        

      • sour service (grade SS).

      
      

      This standard can also be used for drill pipe with tool joints not specified by other standards. By agreement between purchaser and manufacturer, this standard can also be applied to other drill pipe body and/or tool joint dimensions. This standard also lists supplementary requirements (SRs) that may be agreed upon between the purchaser and manufacturer for testing, performance verification, and nondestructive examination (NDE). This standard does not consider performance properties.

      
      

      NOTE 1 In this standard, drill pipe is designated by label 1, label 2, grade of material (E, X, G, S, SS, and V), upset type, and type of rotary shouldered connection (RSC); designations are used for identification in ordering.

      
      

      NOTE 2 See API 7-2 for the detailed requirements for the threading and gauging of drill pipe tool joints. NOTE 3 See API 7G for the performance properties of the drill pipe.

   2. Application of the API Monogram

      
      

      If the product is manufactured at a facility licensed by API and is intended to be supplied bearing the API Monogram, 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 errata or addenda) applies.

API Recommended Practice 7G, Recommended Practice for Drill Stem Design and Operating Limits

API Specification 7-2, Threading and Gauging of Rotary Shouldered Connections

API Technical Report 5C3, Calculating Performance Properties of Pipe Used as Casing or Tubing

ASME Boiler Pressure and Vessel Code (BPVC) 1, Section IX: Welding, Brazing, and Fusing Procedures

1 ASME International, 2 Park Avenue, New York, New York 10016-5990, www.asme.org.

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