U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Leak detection for Liquid
Pipelines - Lots of talk – How well
can it really work?
Pipeline Safety Trust Conference
November 2011
New Orleans, LA
Harold Winnie, CATS Manager (Central Region)
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Agenda
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Protecting People and Environment
Federal Code 49 CFR part 195
§195.444 CPM leak detection
Advisory Bulletin 10-01
§195.446 Control room management
API 1130
Resources
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
PHMSA's approach to protecting
people and the environment.
• Pipeline leak detection is one of the many layers
of protection
• Operators required to deploy a comprehensive
set of safety measures to protect the public and
the environment
– effective means of identifying and responding to
hazardous liquid pipeline leaks at the earliest possible
time.
• Pipeline operators are continuously improving
the cumulative performance of these
interconnected layers of protections
– including advances in leak detection systems.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Protections Include
– Customized leak detection technology deployment;
– Periodic risk-based assessment and defect repair
prioritized by environmental and safety
consequences;
– Corrosion management;
– Pipeline right-of-way surveillance;
– Public awareness activities resulting in enhanced
citizen leak condition recognition and response;
– Emergency preparedness and coordinated response,
including ongoing liaison efforts with emergency
responders;
– A review and incorporation of lessons learned from
accident analyses and investigations.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Direct Regulatory References CPM
• 195.2 Definitions, Computation Pipeline Monitoring
• 195.134 Design Requirements, CPM Leak Detection
• 195.444 Operation and Maintenance, CPM Leak
Detection
• 195.452(i)(1) Integrity Management, General
Requirements
• 195.452(i)(3) Integrity Management, Leak Detection
• 195.452(i)(4) Emergency Flow Restricting Devices
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Federal Code 49 CFR Part 195
§195.444 CPM leak detection.
• Each computational pipeline monitoring
(CPM) leak detection system installed on a
hazardous liquid pipeline transporting
liquid in single phase (without gas in the
liquid) must comply with API 1130 in
operating, maintaining, testing, record
keeping, and dispatcher training of the
system.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Advisory Bulletin ADB-10-01
• Advising and reminding hazardous liquid
pipeline operators
– importance of prompt and effective leak detection capability
– in protecting public safety and the environment.
• Operating plans and procedures should include
the performance of an engineering analysis
– determine if a computer-based leak detection system is
necessary to improve leak detection performance and line
balance processes.
• Engineering analysis determines a system
would not improve leak detection performance
and line balance processes
– the operator should perform the periodic line balance
calculation process outlined herein and take any other
necessary actions required to ensure public safety and
protect the environment.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
§195.446 Control Room Management.
(a) Each operator must have and follow written control room
management procedures that implement the requirements of this
section.
– Operator must develop the procedures no later than August 1,
2011, and must implement according to the following schedule.
– The procedures required by paragraphs (b), (c)(5), (d)(2) and
(d)(3), (f) and (g) implemented no later than October 1, 2011.
– The procedures required by paragraphs (c)(1) through (4),
(d)(1), (d)(4), and (e) implemented no later than August 1,
2012.
– The training procedures required by paragraph (h) must be
implemented no later than August 1, 2012, except that any
training required by another paragraph of this section must be
implemented no later than the deadline for that paragraph.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
§195.446
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(a) General
(b) Roles and responsibilities.
(c) Provide adequate information
(d) Fatigue mitigation
(e) Alarm management
(f) Change management
(g) Operating experience
(h) Training
(i) Compliance validation
(j) Compliance and deviations.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
API 1130
4.2.1 Performance Metrics
• Selection of a CPM system for a given
pipeline involves evaluation of the required
and expected (or estimated) performance
of the system.
• The following categorizes and describes
performance metrics for selection
consideration.
– Reliability.
– Sensitivity.
– Accuracy.
– Robustness.
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Other Documents
• API 1149 Pipeline Variable
Uncertainties' and Their Effect on Leak
Detectability
• CSA Z662 Oil and Gas Pipeline Systems
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Available Resources
• PHMSA Website:
http://www.phmsa.dot.gov
• National Pipeline Mapping System:
http://www.npms.phmsa.dot.gov/
• Stakeholder Communications:
http://primis.phmsa.dot.gov/comm/
• Federal Regulations:
http://www.gpoaccess.gov/cfr
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Thank you!