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ASME B31.8S-2018
M00050440
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ASME B31.8S-2018 Managing System Integrity of Gas Pipelines
standard by ASME International, 11/28/2018
Full Description
This Code applies to onshore pipeline systems constructedwith ferrous materials and that transport gas.The principles and processes embodied in integritymanagement are applicable to all pipeline systems.This Code is specifically designed to provide theoperator (as defined in section 13) with the informationnecessary to develop and implement an effective integritymanagement program utilizing proven industry practicesand processes. The processes and approaches describedwithin this Code are applicable to the entire pipeline.
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Managing System Integrity of Gas Pipelines
ASME Code for Pressure Piping, B31 Supplement to ASME B31.8
AN INTERNA TIONAL PIPING C ODE ®
ASME B31.8S-2018
(Revision of ASME B31.8S-2016)
ASME B31.8S-2018
(Revision of ASME B31.8S-2016)
Managing
System Integrity of Gas Pipelines
ASME Code for Pressure Piping, B31 Supplement to ASME B31.8
AN INTERNATIONAL PIPING CODE®
Two Park Avenue • New York, NY • 10016 USA
Date of Issuance: November 28, 2018
The next edition of this Code is scheduled for publication in 2020.
ASME issues written replies to inquiries concerning interpretations of technical aspects of this Code. Interpretations are published on the Committee web page and under https://go.asme.org/Interpretations. Periodically certain actions of the ASME B31 Committee may be published as Cases. Cases are published on the ASME website under the B31 Committee Page at https://go.asme.org/B31committee as they are issued.
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This international code or standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The Standards Committee that approved the code or standard was balanced to assure that individuals from competentand concerned interestshave had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at- large.
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ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility.
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without the prior written permission of the publisher.
The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990
Copyright © 2018 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved Printed in U.S.A.
CONTENTS
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | v vi x |
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
2 Integrity Management Program Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 2 |
3 Consequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 7 |
4 Gathering, Reviewing, and Integrating Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 9 |
5 Risk Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 12 |
6 Integrity Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 17 |
7 Responses to Integrity Assessments and Mitigation (Repair and Prevention) . . . . . . . . . . . . . . . | 21 |
8 Integrity Management Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 28 |
9 Performance Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 29 |
10 Communications Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 34 |
11 Management of Change Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 34 |
12 Quality Control Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 35 |
13 Terms, Definitions, and Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
14 References and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 42 |
Nonmandatory Appendices
A | Threat Process Charts and Prescriptive Integrity Management Plans . . . . . . . . . . . . . . . . . . . . . | 45 |
B | Direct Assessment Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 63 |
C | Preparation of Technical Inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 64 |
Figures | ||
2.1-1 | Integrity Management Program Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
2.1-2 | Integrity Management Plan Process Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 4 |
3.2.4-1 | Potential Impact Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 9 |
7.2.1-1 | Timing for Scheduled Responses: Time-Dependent Threats, Prescriptive Integrity Management Plan | 26 |
13-1 | Hierarchy of Terminology for Integrity Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
A-2.1-1 | Integrity Management Plan, External Corrosion Threat (Simplified Process: Prescriptive) . . . . . . | 46 |
A-3.1-1 | Integrity Management Plan, Internal Corrosion Threat (Simplified Process: Prescriptive) . . . . . . | 48 |
A-5.1-1 | Integrity Management Plan, Manufacturing Threat (Pipe Seam and Pipe; Simplified Process: Prescriptive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 52 |
A-6.1-1 | Integrity Management Plan, Construction Threat (Pipe Girth Weld, Fabrication Weld, Wrinkle Bend or Buckle, Stripped Threads/Broken Pipe/Coupling; Simplified Process: Prescriptive) . . . . . . . . | 54 |
A-7.1-1 | Integrity Management Plan, Equipment Threat (Gasket and O-Ring, Control/Relief, Seal/Pump Packing; Simplified Process: Prescriptive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 56 |
A-8.1-1 | Integrity Management Plan, Third-Party Damage Threat [Third-Party Inflicted Damage (Immediate), Vandalism, Previously Damaged Pipe; Simplified Process: Prescriptive] . . . . . . . . . . . . . . . . . | 57 |
A-9.1-1 A-10.1-1 | Integrity Management Plan, Incorrect Operations Threat (Simplified Process: Prescriptive) . . . . . Integrity Management Plan, Weather-Related and Outside Force Threat (Earth Movement, Heavy | 59 |
Rains or Floods, Cold Weather, Lightning; Simplified Process: Prescriptive) . . . . . . . . . . . . . . | 61 | |
Tables | ||
4.2.1-1 | Data Elements for Prescriptive Pipeline Integrity Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 10 |
4.3-1 | Typical Data Sources for Pipeline Integrity Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 11 |
5.6.1-1 | Integrity Assessment Intervals: Time-Dependent Threats, Internal and External Corrosion, Prescriptive Integrity Management Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 14 |
7.1-1 | Acceptable Threat Prevention and Repair Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 23 |
8.3.4-1 | Example of Integrity Management Plan for Hypothetical Pipeline Segment (Segment Data: Line 1, Segment 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 30 |
8.3.4-2 | Example of Integrity Management Plan for Hypothetical Pipeline Segment (Integrity Assessment Plan: Line 1, Segment 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 30 |
8.3.4-3 | Example of Integrity Management Plan for Hypothetical Pipeline Segment (Mitigation Plan: Line 1, Segment 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 31 |
9.2.3-1 | Performance Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 32 |
9.4-1 | Performance Metrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 33 |
9.4-2 | Overall Performance Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 34 |
A-4.4-1 | SCC Crack Severity Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 51 |
A-4.4.1-1 | Actions Following Discovery of SCC During Excavation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 51 |
FOREWORD
Pipeline system operators continuously work to improve the safety of their systems and operations. In the United States, both liquid and gas pipeline operators have been working with their regulators for several years to develop a more systematic approach to pipeline safety integrity management.
The gas pipeline industry needed to address many technical concerns before an integrity management standard could be written. A number of initiatives were undertaken by the industry to answer these questions; as a result of two years of intensive work by a number of technical experts in their fields, 20 reports were issued that provided the responses required to complete the 2001 edition of this Code. (The list of these reports is included in the reference section of this Code.)
This Code is nonmandatory, and is designed to supplement B31.8, ASME Code for Pressure Piping, Gas Transmission and Distribution Piping Systems. Not all operators or countries will decide to implement this Code. This Code becomes mandatory if and when pipeline regulators include it as a requirement in their regulations.
This Code is a process code that describes the process an operator may use to develop an integrity management program. It also provides two approaches for developing an integrity management program: a prescriptive approach and a performance- or risk-based approach. Pipeline operators in a number of countries are currently utilizing risk-based or risk-management principles to improve the safety of their systems. Some of the international standards issued on this subject were utilized as resources for writing this Code. Particular recognition is given to API and their liquids integrity management standard, API Std 1160, which was used as a model for the format of this Code.
The intent of this Code is to provide a systematic, comprehensive, and integrated approach to managing the safety and integrity of pipeline systems. The task force that developed this Code hopes that it has achieved that intent.
The 2018 Edition of the Supplement is a compilation of the 2016 Edition and the revisions that have occurred since the issuance of the 2016 Edition. This Edition was approved by ANSI on July 2, 2018.
ASME B31 COMMITTEE
Code for Pressure Piping
(The following is the roster of the Committee at the time of approval of this Code.)
STANDARDS COMMITTEE OFFICERS
J. E. Meyer, Chair
J. W. Frey, Vice Chair
A. P. Maslowski, Secretary
STANDARDS COMMITTEE PERSONNEL
R. J. Appleby, ExxonMobil Pipeline Co.
C. Becht IV, Becht Engineering Co.
K. C. Bodenhamer, TRC Pipeline Services
R. Bojarczuk, ExxonMobil Research and Engineering Co.
M. R. Braz, MRBraz and Associates, PLLC
J. S. Chin, TransCanada Pipelines U.S.
D. D. Christian, Victaulic
R. P. Deubler, Becht Engineering Co., Inc.
D. Diehl, Hexagon PPM
H. Eskridge, Jr., Jacobs Engineering
J. Fetzner, BP Exploration (Alaska), Inc.
P. D. Flenner, Flenner Engineering Services
J. W. Frey, Joe W. Frey Engineering Services, LLC
D. R. Frikken, Becht Engineering Co.
R. A. Grichuk, Fluor Enterprises, Inc.
R. W. Haupt, Pressure Piping Engineering Associates, Inc.
B. P. Holbrook, Babcock Power, Inc.
G. A. Jolly, Samshin, Ltd.
K. B. Kaplan, Consultant
C. Kolovich, Consultant
A. Livingston, Kinder Morgan
A. P. Maslowski, The American Society of Mechanical Engineers
W. J. Mauro, American Electric Power
J. E. Meyer, Louis Perry and Associates, Inc.
T. Monday, Team Industries, Inc.
M. L. Nayyar, NICE
G. R. Petru, Acapella Engineering Services, LLC
D. W. Rahoi, Consultant
R. Reamey, Turner Industries Group, LLC
M. J. Rosenfeld, Kiefner/Applus — RTD
J. T. Schmitz, Southwest Gas Corp.
S. K. Sinha, Lucius Pitkin, Inc.
W. J. Sperko, Sperko Engineering Services, Inc.
J. Swezy, Jr., Boiler Code Tech, LLC
F. W. Tatar, FM Global
K. A. Vilminot, Commonwealth Associates, Inc.
J. S. Willis, Page Southerland Page, Inc.
G. Antaki, Ex-Officio Member, Becht Engineering Co.
L. E. Hayden, Jr., Ex-Officio Member, Consultant
B31.8 EXECUTIVE COMMITTEE
A. P. Maslowski, Secretary, The American Society of Mechanical Engineers
D. D. Anderson, Columbia Pipeline Group
R. J. Appleby, ExxonMobil Development Co.
K. B. Kaplan, Consultant
K. G. Leewis, Leewis and Associates, Inc.
M. J. Rosenfeld, Kiefner/Applus — RTD
J. Zhou, TransCanada Pipelines, Ltd.
E. K. Newton, Ex-Officio Member, Southern California Gas Co.
B. J. Powell, Ex-Officio Member, NiSource, Inc.
W. J. Walsh, Ex-Officio Member, ArcelorMittal Global R&D
B31.8 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS SECTION COMMITTEE
R. J. Appleby, Chair, ExxonMobil Pipeline Co.
M. J. Rosenfeld, Vice Chair, Kiefner/Applus — RTD
P. D. Stumpf, Secretary, The American Society of Mechanical Engineers
D. D. Anderson, TransCanada Corp.
R. C. Becken, Energy Experts International
C. A. Bullock, Integrity Solutions, Ltd.
J. S. Chin, TransCanada Pipelines U.S.
S. C. Christensen, Consultant
A. M. Clarke, Consultant
P. M. Dickinson, Resolute Energy Corp.
J. W. Fee, Consultant
D. J. Fetzner, BP Exploration (Alaska), Inc.
S. A. Frehse, Southwest Gas Corp.
R. Gailing, BMT Fleet Technology, Ltd.
M. W. Gragg, ExxonMobil Development Co.
D. W. Haim, EnSiteUSA
M. E. Hovis, Energy Transfer
R. D. Huriaux, Richard D. Huriaux, PE LLC
D. L. Johnson, Energy Transfer
K. B. Kaplan, Consultant
M. Kieba, U.S. DOT — PHMSA
R. W. Kivela, Enbridge
M. P. Lamontagne, Lamontagne Pipeline Assessment Corp.
K. G. Leewis, Leewis and Associates, Inc.
R. D. Lewis, Rosen USA
K. Moore, Trout Hydrodynamics, Inc.
K. Newton, Southern California Gas Co.
M. Nguyen, S&B Engineers and Constructors, Ltd.
G. E. Ortega, Shell
B. J. Powell, NiSource, Inc.
M. T. Reed, TransCanada Corp.
E. J. Robichaux II, Atmos Energy
R. A. Schmidt, Canadoil
P. L. Vaughan, ONEOK Partners, LP
F. R. Volgstadt, Volgstadt and Associates, Inc.
W. J. Walsh, ArcelorMittal Global R&D
D. W. Wright, Wright Tech Services, LLC
M. R. Zerella, National Grid
J. Zhou, TransCanada Pipelines, Ltd.
J. S. Zurcher, Process Performance Improvement Consultants
S. C. Gupta, Delegate, Bharat Petroleum Corp., Ltd.
A. Soni, Delegate, Engineers India, Ltd.
R. W. Gailing, Contributing Member, Southern California Gas Co.
J. K. Wilson, Contributing Member, Williams
B31.8 SUBGROUP ON DESIGN, MATERIALS, AND CONSTRUCTION
M. J. Rosenfeld, Chair, Kiefner/Applus — RTD
B. Albers, Fluor
H. M. Al-Muslim, Saudi Aramco
R. J. Appleby, ExxonMobil Development Co.
R. C. Becken, Energy Experts International
B. W. Bingham, T. D. Williamson, Inc.
D. Chairez, Consultant
J. S. Chin, TransCanada Pipelines U.S.
A. M. Clarke, Consultant
D. C. D’Eletto, National Grid
P. M. Dickinson, Resolute Energy Corp.
J. W. Fee, Consultant
D. J. Fetzner, BP Exploration (Alaska), Inc.
S. A. Frehse, Southwest Gas Corp.
R. W. Gailing, BMT Fleet Technology, Ltd.
D. Haim, EnSiteUSA
R. D. Huriaux, Consultant
K. B. Kaplan, Consultant
M. Kieba, U.S. DOT — PHMSA
W. E. Mojica, Pacific Gas and Electric
E. K. Newton, Southern California Gas Co.
M. Nguyen, S&B Engineers and Constructors, Ltd.
G. E. Ortega, Shell
W. L. Raymundo, Raymundo Engineering
E. J. Robichaux II, Atmos Energy
R. A. Schmidt, Canadoil
L. C. Thronson, Tecorp International, PLLC
H. Tiwari, FMC Technologies, Inc.
F. R. Volgstadt, Volgstadt and Associates, Inc.
W. J. Walsh, ArcelorMittal Global R&D
J. Zhou, TransCanada Pipelines, Ltd.
M. A. Boring, Contributing Member, Kiefner and Associates, Inc.
M. D. Huston, Contributing Member, Oneok Partners, LP
M. J. Mechlowicz, Contributing Member, Southern California Gas Co.
B31.8 SUBGROUP ON DISTRIBUTION
E. K. Newton, Chair, Southern California Gas Co.
B. J. Powell, Vice Chair, NiSource, Inc.
V. Romero, Vice Chair, Southern California Gas Co.
B. Tansey, Secretary, American Gas Association
D. Chairez, Consultant
S. A. Frehse, Southwest Gas Corp.
J. M. Groot, Southern California Gas Co.
M. Kieba, U.S. DOT — PHMSA
W. J. Manegold, Pacific Gas and Electric Co.
M. J. Mechlowicz, Southern California Gas Co.
J. Robichaux, Atmos Energy
R. Volgstadt, Volgstadt and Associates, Inc.
M. R. Zerella, National Grid
M. J. Mechlowicz, Contributing Member, Southern California Gas Co.
B31.8 SUBGROUP ON EDITORIAL REVIEW
K. G. Leewis, Chair, Leewis and Associates, Inc.
R. C. Becken, Energy Experts International
J. P. Brandt, BP Exploration (Alaska), Inc.
R. W. Gailing, Southern California Gas Co.
D. Haim, EnSiteUSA
K. B. Kaplan, Consultant
R. D. Lewis, Rosen USA
D. K. Moore, TransCanada Corp.
B31.8 SUBGROUP ON OFFSHORE PIPELINES
K. B. Kaplan, Chair, Consultant
R. J. Appleby, ExxonMobil Development Co.
K. K. Emeaba, National Transportation Safety Board
M. W. Gragg, ExxonMobil Development Co.
M. Nguyen, S&B Engineers and Constructors, Ltd.
H. Tiwari, FMC Technologies, Inc.
B31.8 SUBGROUP ON OPERATION AND MAINTENANCE
D. D. Anderson, Chair, TransCanada Corp.
M. E. Hovis, Vice Chair, Energy Transfer
R. P. Barry, ENSTAR Natural Gas Co.
A. Bhatia, Det Norske Veritas (Canada), Ltd.
J. P. Brandt, BP Exploration (Alaska), Inc.
C. A. Bullock, Integrity Solutions, Ltd.
K. K. Emeaba, National Transportation Safety Board
J. M. Groot, Southern California Gas Co.
J. Hudson, EN Engineering
J. Huyse, University of Calgary
Israni, U.S. DOT — PHMSA
D. L. Johnson, Energy Transfer
R. W. Kivela, Enbridge
E. Kostelka, Enable Midstream Partners
E. C. Kurilla, American Gas Association
M. P. Lamontagne, Lamontagne Pipeline Assessment Corp.
K. G. Leewis, Leewis and Associates, Inc.
R. D. Lewis, Rosen USA
C. Maier, DNV GL
W. J. Manegold, Pacific Gas and Electric Co.
D. K. Moore, Trout Hydrodynamics, Inc.
M. Nguyen, S&B Engineers and Constructors, Ltd.
B. J. Powell, NiSource, Inc.