AS 2885.3-1997

1-AS 2885.3-1997 PIPELINES - GAS AND LIQUID PETROLEUM - OPERATION AND MAINTENANCE
4-PREFACE
5-CONTENTS
7-SECTION 1 SCOPE AND GENERAL
7-1.1 SCOPE
7-1.2 BASIS OF STANDARD
7-1.3 APPLICATION
7-1.4 RISK MANAGEMENT
7-1.5 REFERENCED DOCUMENTS
7-1.6 DEFINITIONS
7-1.7 RECORDS
9-SECTION 2 PREPARATION FOR OPERATION
9-2.1 GENERAL
9-2.2 PROCEDURES AND PLANS
9-2.3 RESPONSIBILITIES FOR PERSONNEL
9-2.4 READINESS FOR OPERATION
9-2.5 DELAYED COMMENCEMENT OF OPERATION
10-2.6 FILLING PROCEDURES
10-2.6.1 General
10-2.6.2 Filling a gas pipeline
10-2.6.3 Filling a liquid petroleum pipeline
11-2.6.4 Filling a high vapour pressure liquid (HVPL) pipeline
12-SECTION 3 OPERATING REQUIREMENTS
12-3.1 GENERAL
12-3.2 NORMAL OPERATING PROCEDURES
12-3.2.1 Operating to design conditions
12-3.2.2 Pipeline surveillance
14-3.2.3 Stations
14-3.2.4 Third party awareness
16-3.2.5 External interference near pipelines
17-3.2.6 Communications systems
17-3.2.7 Noise abatement
17-3.2.8 Leakage survey and detection
17-3.2.9 Review of procedures
17-3.3 SAFETY AND OPERATING PLAN
17-3.3.1 General
17-3.3.2 Safety and operating plan requirements
18-3.4 EMERGENCY PLANS
19-3.5 VENTING PROCEDURES
19-3.5.1 Precautions to prevent an explosion
19-3.5.2 Venting gas
19-3.6 PURGING PROCEDURES
19-3.6.1 General
19-3.6.2 Gas
20-3.6.3 Hydrocarbon liquid
20-3.6.4 Purging an HVPL
20-3.6.5 Trapped hydrocarbon
21-SECTION 4 OPERATING CONDITION CHANGES
21-4.1 DESIGN CONDITION CHANGES
21-4.2 PRESSURE TESTING OF DESIGN CONDITION CHANGES
22-4.3 PIPELINE MODIFICATIONS
22-4.4 REVIEW OF PRESSURE-CONTROL AND OVER-PRESSURE PROTECTION SYSTEMS
22-4.5 REVIEW OF DESIGN LIFE
22-4.6 REVIEW OF MAXIMUM ALLOWABLE OPERATING PRESSURE (MAOP)
22-4.7 REVIEW OF LOCATION CLASSES
22-4.8 TRANSFER OF OWNERSHIP OR OPERATORSHIP OR BOTH
22-4.9 ABANDONING A PIPELINE
23-4.10 RECORDS
24-SECTION 5 MAINTENANCE REQUIREMENTS
24-5.1 PIPELINE INTEGRITY
24-5.1.1 General
24-5.1.2 Monitoring plan
24-5.1.3 Audit
24-5.2 PIPELINE INSPECTION AND ASSESSMENT
24-5.2.1 General
25-5.2.2 Regularity of assessment
25-5.2.3 Assessment results and appropriate action
25-5.2.4 Internal surfaces
25-5.2.5 External surfaces
25-5.3 COATINGS
25-5.3.1 Above-ground pipework
26-5.3.2 Below-ground pipework
26-5.4 PIPE WALL DEFECT ASSESSMENT
26-5.4.1 Damaged pipework
26-5.4.2 Corroded pipework
28-5.4.3 Assessment of corroded pipework
28-5.5 ANCILLARY EQUIPMENT ASSESSMENT
28-5.5.1 General
28-5.5.2 Valves
28-5.5.3 Pipe supports
28-5.5.4 Ground entry locations
28-5.6 CATHODIC PROTECTION CRITERIA
28-5.6.1 General
29-5.6.2 Steel-cased crossings
29-5.7 CATHODIC PROTECTION INSPECTION
29-5.7.1 Inspectors
29-5.7.2 Measuring equipment
29-5.7.3 Inspections
29-5.7.4 Records
29-5.8 PRESSURE CONTROL AND PROTECTIVE EQUIPMENT INSPECTION
29-5.9 PIG TRAP INSPECTION AND MAINTENANCE
29-5.10 CASING (SLEEVE) MAINTENANCE
30-5.11 STRUCTURES HOUSING EQUIPMENT
31-SECTION 6 PIPELINE REPAIRS
31-6.1 GENERAL
31-6.2 SUPERVISION
31-6.3 COMMUNICATION AND CONTROL
31-6.4 WORKING ON PIPELINES
31-6.4.1 General
31-6.4.2 Tunnels, shafts, and casing
31-6.4.3 Precautions to prevent an explosion
32-6.4.4 Pipelines filled with hydrocarbon gas
32-6.4.5 Pipelines filled with liquid petroleum or HVPL
32-6.4.6 Purged pipelines
33-6.5 REPAIR STRATEGY
33-6.5.1 Initial response
33-6.5.2 Repair strategy flowchart
33-6.5.3 Temporary repairs
33-6.5.4 Permanent repairs
33-6.6 WELDING ONTO AN IN-SERVICE PIPELINE
33-6.6.1 General
33-6.6.2 Monitoring of operating conditions
33-6.6.3 Resumption of normal operation
35-6.7 HOT-TAPPING OPERATIONS
35-6.7.1 General
35-6.7.2 Location of connections
35-6.7.3 Design
35-6.7.4 Pipe support prior to drilling
36-APPENDIX A - LIST OF REFERENCED DOCUMENTS
36-A1 IDENTIFICATION OF DOCUMENTS
36-A2 REFERENCED DOCUMENTS
38-APPENDIX B - ASSESSMENT OF A CORRODED PIPELINE
38-B1 SCOPE
38-B2 ASSESSMENT BY PRESSURE TESTING
38-B3 ASSESSMENT BY CALCULATION
38-B3.1 General
38-B3.2 Hoop stress analysis
48-INDEX