CLASSIFICATION OF DRILLING SYSTEMS - ABS

179 Pages·2014·1.93 MB·English

by  Jana Palfy

Guide for the Classification of Drilling Systems
GUIDE FOR THE
CLASSIFICATION OF DRILLING SYSTEMS
SEPTEMBER 2012 (Updated February 2014 – see next page)
American Bureau of Shipping
Incorporated by Act of Legislature of
the State of New York 1862
Copyright  2012
American Bureau of Shipping
ABS Plaza
16855 Northchase Drive
Houston, TX 77060 USA
Updates
February 2014 consolidation includes:
• September 2012 version plus Corrigenda/Editorials
Foreword
Foreword (1 September 2012)
This Guide has been revised to assist the industry with Classification of Drilling Systems. This revision
supersedes the March 2011 ABS Guide for the Classification of Drilling Systems. This Guide becomes
effective as of 1 September 2012.
The Guide describes criteria to be used for drilling systems, which are to be approved by the American
Bureau of Shipping (ABS), and it is built upon requirements of the recognized codes and standards, as
referenced in this Guide. The Guide contains the following nine (9) main sections and five (5) appendices:
Section 1 Scope and Condition of Classification
Section 2 Design of Drilling Systems
Section 3 Drilling Systems
Section 4 Scope of Drilling System and Equipment Approval
Section 5 Drilling System Piping
Section 6 Materials for Drilling Systems and Equipment
Section 7 Welding and Nondestructive Examination
Section 8 Surveys at Vendor’s Plant During Installation and Commissioning
Section 9 Surveys After Construction and Maintenance of Class
Appendix 1 Typical Codes and Standards Related to ABS Classification of Drilling Systems
Appendix 2 Example of Manufacturer’s Affidavit of Compliance
Appendix 3 Example of Independent Review Certificate
Appendix 4 Example of Certificate of Conformity
Appendix 5 Example of Maintenance Release Note
This Guide is to be used in conjunction with other applicable ABS Rules and Guides, codes and standards
as referenced therein, and applicable national regulations.
ABS Classification continues to provide the offshore industry with a pathway toward agreement by Regulatory
Authorities. However, the Owner/Operator’s specific request for compliance with applicable requirements
of Flag or Coastal State Authorities affecting the drilling systems is to be filed as an addendum to the
Request for Classification.
The following changes to the Guide were incorporated into the September 2012 CDS Guide:
General
• None
Section 1
• Editorial changes.
• New reference, definitions, and acronyms added.
Section 2
• Editorial changes.
• Provided “Risk Assessment for Drilling System”
• Added submittal requirements for conductor tensioning system/unit.
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ABS GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS 2012 iii
Section 3
• Revised accumulator hydraulic capacity requirements for subsea and surface BOP stack.
• Modified shearing capacity requirements – calculations, testing, etc.
• Revised choke and kill systems requirements, and their control system requirements.
• Added design requirements for:
- Kill Unit
- Riser Recoil System
- Conductor Tensioning System
- Personnel Baskets
- Gears and Couplings
• Clarifications provided for “Control Systems”.
Section 4
• Clarified and modified Table 1 of Section 4.
• Provided “Revalidation Date” requirements for IRC.
• Allowance of PDAs.
• Allowance of limited use of ABS Type Approval Program for selected equipment.
Section 5
• Clarified the requirements for “Flexible Lines/Hydraulic Hoses” to consider different service categories.
• Clarified the requirements for “Thread Joints and Connections” and “Socket Welds”.
• Clarified the requirements for “Fire Resistance”.
• Provided requirements for “Primary Product Form”.
Section 6
• Revised toughness requirements for structural load-bearing equipment and components.
• Provide guidance on structural galvanizing process.
Section 7
• Clarified requirements for welding and NDE.
• Provided guidance on delayed NDE.
• Clarified drawwork testing requirements.
Section 8
• Editorial changes.
Section 9
• Added requirements for Drilling Equipment Maintenance Plans (DEMP).
• Added requirements for prefabrication or kick-off meeting.
• Added “Unscheduled Survey” and “Alternatives to Periodic Survey”
Appendix 1
• Additional codes and standards.
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iv ABS GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS 2012
Appendix 2
• Updated the contents to provide additional parameters for Appendix 2 “Example of Manufacturer’s
Affidavit of Compliance”
Appendix 3
• Provided “Revalidation Date” for IRC.
Appendix 4
• None
Appendix 5
• Added example of Survey Report (SR).
Appendix 6
• None

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ABS GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS 2012 v
Table of Contents
GUIDE FOR THE
CLASSIFICATION OF DRILLING SYSTEMS
CONTENTS
SECTION 1 Scope and Conditions of Classification ............................................... 1
1 Classification ....................................................................................... 1
1.1 Process ............................................................................................ 1
1.3 Certificates and Reports .................................................................. 1
1.5 Representations as to Classification ................................................ 2
1.7 Scope of Classification .................................................................... 2
3 Suspension and Cancellation of Class ............................................... 3
3.1 Termination of Classification and Notice of Surveys ........................ 3
3.3 Suspension of Class ........................................................................ 3
3.5 Lifting of Suspension ....................................................................... 3
3.7 Cancellation of Class ....................................................................... 4
5 Class Notation ..................................................................................... 4
5.1 ABS Class Notation ......................................................................... 4
5.3 Systems Not Built Under Survey...................................................... 4
7 Rules for Classification ....................................................................... 4
7.1 Applications ..................................................................................... 4
7.3 Effective Date of Change of Requirement ....................................... 5
7.5 Scope .............................................................................................. 5
7.7 Alternatives ...................................................................................... 6
7.9 Risk Assessment ............................................................................. 7
9 Other Regulations ............................................................................... 7
9.1 International and Other Regulations ................................................ 7
9.3 Governmental Regulations .............................................................. 8
11 IACS Audit ........................................................................................... 8
13 Submission of Plans ........................................................................... 8
15 Conditions for Survey After Construction ............................................ 8
15.1 Damage, Failure and Repair ............................................................ 8
15.3 Notification and Availability for Survey ............................................. 9
17 Units .................................................................................................. 10
19 Fees .................................................................................................. 10
21 Disagreement .................................................................................... 10
21.1 Rules and Guides .......................................................................... 10
21.3 Surveyor ........................................................................................ 10
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vi ABS GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS 2012
23 Limitation of Liability .......................................................................... 10
25 References ........................................................................................ 10
27 Definitions ......................................................................................... 11
29 Acronyms and Abbreviations ............................................................ 21

SECTION 2 Design of Drilling Systems .................................................................. 23
1 Design of Drilling System .................................................................. 23
1.1 General.......................................................................................... 23
1.3 Equipment Layout ......................................................................... 23
1.5 Overpressurization Protection ....................................................... 24
1.7 Materials ........................................................................................ 24
1.9 Welding and Nondestructive Examination ..................................... 24
1.11 Platforms and Railings .................................................................. 24
3 Design Specifications ........................................................................ 24
5 Design Considerations ...................................................................... 25
5.1 Recognized Standards .................................................................. 25
5.3 Alternative Basis of Design ............................................................ 25
5.5 Corrosion/Erosion Allowance ........................................................ 25
5.7 Design Conditions ......................................................................... 26
5.9 Risk Assessments for Drilling System ........................................... 26
5.11 FMEA/FMECA Validation Program ............................................... 27
7 Design Plans and Data ..................................................................... 28
7.1 General Arrangement for Drilling System ...................................... 28
7.3 Well Control Systems and Equipment ........................................... 29
7.5 Marine Drilling Riser Systems ....................................................... 33
7.6 Conductor Tensioning System/Unit ............................................... 35
7.7 Drill String Compensation Systems ............................................... 35
7.9 Bulk Storage, Transfer, Conditioning, and Circulation Systems .... 36
7.11 Hoisting, Lifting, Tubular Handling Systems .................................. 37
7.13 Mechanical Load-Bearing Equipment ............................................ 41
7.15 Well Testing System ...................................................................... 41
7.17 Electrical Systems and Equipment ................................................ 43
7.19 Control Systems ............................................................................ 43
7.21 Pressure-Retaining Equipment ...................................................... 44
7.23 Piping Systems and Piping Components ...................................... 44
7.25 Flexible Lines/Hydraulic Hoses ..................................................... 45
7.27 Manufacturing Specifications ......................................................... 45

SECTION 3 Drilling Systems ................................................................................... 47
1 General ............................................................................................. 47
3 Well Control System ......................................................................... 48
3.1 Blowout Preventer System and Equipment ................................... 48
3.3 Lower Marine Riser Package (LMRP) ........................................... 53
3.5 Choke and Kill Systems and Equipment ....................................... 54
3.7 Diverter System and Equipment .................................................... 60
3.9 Marine Drilling Riser Systems ....................................................... 61
3.11 Auxiliary Well Control Equipment .................................................. 61
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5 Marine Drilling Riser System ............................................................. 62
5.1 Riser Tensioning System and Equipment ...................................... 62
5.3 Marine Drilling Riser Operating Envelope ...................................... 63
5.5 Technical Requirements ................................................................ 64
5.7 Design Documentation .................................................................. 65
6 Conductor Tensioning System .......................................................... 66
6.1 Conductor Tensioning System Equipment ..................................... 66
6.3 Control Systems for Conductor Tensioning System ...................... 66
7 Drill String Compensation System .................................................... 66
7.1 Drill String Compensation Equipment ............................................ 66
9 Bulk Storage, Circulation and Transfer Systems .............................. 67
9.1 Bulk Storage and Transfer Equipment ........................................... 67
9.3 Cementing System and Equipment ............................................... 68
9.5 Mud Return System and Equipment .............................................. 68
9.7 Well Circulation System and Equipment ........................................ 68
11 Hoisting, Lifting, Rotating and Handling Systems ............................. 70
11.1 Derricks/Masts ............................................................................... 70
11.3 Hoisting Equipment ........................................................................ 73
11.5 Lifting Equipment ........................................................................... 76
11.7 Handling Equipment ...................................................................... 81
11.9 Rotary Equipment .......................................................................... 83
11.11 Miscellaneous Equipment .............................................................. 83
13 Well Test System .............................................................................. 84
13.1 Well Test System and Equipment .................................................. 84
13.3 Burner/Flare Booms ....................................................................... 85
13.5 Hydrocarbon Disposal Facilities .................................................... 85
13.7 Surface Safety Systems ................................................................ 85
13.9 Classified Areas ............................................................................. 86
13.11 Operational Procedures ................................................................. 86
15 Control Systems ................................................................................ 86
15.1 Control Systems ............................................................................ 86
15.3 Control Systems for Well Control Equipment ................................. 87
15.5 Electrical Control Systems and Computer-Based Systems ........... 88
15.7 Safety Systems – Equipment ......................................................... 89
17 Pressure-Retaining Equipment ......................................................... 89
17.1 Pressure Vessels ........................................................................... 89
17.3 Hydraulic Cylinders ........................................................................ 90
19 Electrical Systems and Equipment ................................................... 90
21 Rotating Machinery ........................................................................... 90
21.1 Internal Combustion Engines ......................................................... 90
21.3 Rotating Electrical Machinery ........................................................ 91
21.5 Gears and Couplings ..................................................................... 91
23 Skid Mounted Equipment .................................................................. 91
23.1 Skid Structures .............................................................................. 92
23.3 Drip Pans ....................................................................................... 92

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viii ABS GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS 2012
SECTION 4 Scope of Drilling System and Equipment Approval .......................... 93
1 General ............................................................................................. 93
3 Approval Process .............................................................................. 93
3.1 Design Review .............................................................................. 94
3.3 ABS Survey ................................................................................... 95
3.5 Issuance of Certificates and Reports ............................................. 96
3.7 Individual Equipment Approval: Non-Class Installation ................. 97
3.9 Vendor Coordination Program ....................................................... 97

TABLE 1 Approval Codes for Drilling Systems and Equipment ............. 98

SECTION 5 Drilling System Piping ....................................................................... 122
1 General ........................................................................................... 122
3 Design Criteria ................................................................................ 122
3.1 Piping Systems and Components ............................................... 122
3.3 Fittings and Valves ...................................................................... 123
3.5 Piping Joints and Connections .................................................... 123
3.7 Flexible Lines/Hydraulic Hoses ................................................... 125
5 Materials.......................................................................................... 127
5.1 Toughness ................................................................................... 127
5.3 Composite Materials .................................................................... 127
7 Welding and NDE ........................................................................... 127

SECTION 6 Materials for Drilling Systems and Equipment ................................ 128
1 General ........................................................................................... 128
1.1 Material Categories ..................................................................... 128
1.3 Material Properties ...................................................................... 128
1.5 Corrosion – Sour Service ............................................................ 128
1.7 Bolts and Nuts ............................................................................. 128
3 Materials for Structural Load-Bearing Components ....................... 129
3.1 Toughness ................................................................................... 129
3.3 Galvanizing .................................................................................. 130
5 Materials for Mechanical Load-Bearing Components ..................... 131
5.1 Toughness ................................................................................... 131
7 Materials for Pressure-Retaining Equipment and Piping
Components .................................................................................... 132
7.1 Toughness ................................................................................... 132
9 Fabrication Considerations ............................................................. 133
9.1 Welding ....................................................................................... 133
9.3 Forming ....................................................................................... 133
11 Primary Product Form ..................................................................... 133
11.1 General........................................................................................ 133
11.3 Rolled Products ........................................................................... 133
11.5 Forgings ...................................................................................... 134
11.7 Castings ...................................................................................... 134
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13 Sealing Materials ............................................................................ 134
13.1 Elastomeric Sealants ................................................................... 134
13.3 Ring Joint Gaskets ....................................................................... 134
15 Materials and Traceability ............................................................... 134
15.1 Materials ...................................................................................... 134
15.3 Traceability .................................................................................. 135

SECTION 7 Welding and Nondestructive Examination ....................................... 136
1 General ........................................................................................... 136
1.1 Welding ........................................................................................ 136
1.3 Nondestructive Examination (NDE) ............................................. 136
3 Specifications .................................................................................. 136
3.1 Welding Procedure Specification ................................................. 137
3.3 NDE Procedures .......................................................................... 137
5 Welder/Welding Operator Qualification .......................................... 137
7 Qualification of Nondestructive Technicians ................................... 137
9 Post Weld Heat Treatment .............................................................. 137
11 Nondestructive Examination ........................................................... 138
11.1 Extent of Examination for Materials and Welds ........................... 138
11.3 Inspection for Delayed (Hydrogen-Induced) Cracking ................. 138
11.5 Methods and Acceptance Criteria ................................................ 139
13 Record Retention ............................................................................ 140

SECTION 8 Surveys at Vendor’s Plant, During Installation and
Commissioning................................................................................... 141
1 General ........................................................................................... 141
3 Surveys at Manufacture and During Assembly ............................... 141
3.1 Testing of Well Control Equipment and BOP’s ............................ 142
3.3 Testing of Marine Drilling Riser System and Associated
Components ................................................................................ 143
3.5 Testing of Drill String Compensation System .............................. 143
3.7 Testing of Bulk Storage, Circulating and Transfer Systems ......... 143
3.9 Testing of Hoisting, Lifting, Rotating, and Handling Systems ...... 143
3.11 Testing of Well Test Equipment ................................................... 143
3.13 Testing of Skid Structures ............................................................ 144
5 Onboard Surveys During Installation .............................................. 144
5.1 Testing of Base-mounted Winches and Other Lifting
Appliances ................................................................................... 146
5.3 Testing of Burner/Flare Boom ...................................................... 147
7 Commissioning Surveys of the Drilling Systems ............................ 147

SECTION 9 Surveys After Construction and Maintenance of Class .................. 149
1 General ........................................................................................... 149
1.1 Survey Intervals ........................................................................... 149
1.3 Drilling Equipment Maintenance Plans (DEMP) and
Maintenance Records .................................................................. 149
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x ABS GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS 2012