Download - Chris Hoidal Presentation
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 1/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
PHMSAPHMSA
Hazardous Liquid Transmission –Understanding the Application of Automatic
and Remote Control Shutoff Valves
Chris HoidalWestern Region Director 720 963-3160
Office of Pipeline Safety Denver [email protected]
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 2/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
OutlineOutline
• Automatic Shutoff Valves, Remote Control Shutoff Valves,Emergency Flow Restricting Devices
– o e equ rements an spec c cons erat ons
• Emergency response
’
• Pipeline Safety, Regulatory Certainty, and Job Creation Act
• Considerations
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 3/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Automatic Shutoff Valve (ASV) Automatic Shutoff Valve (ASV)
• Electric, pneumatic, or gas powered actuators
• ,
• Pressure
• Flow
• Signals cause automatic closure on set pipeline parameters
• Does NOT require human action for operation
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 4/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Remote Control Valve (RCV)Remote Control Valve (RCV)
•Electric, pneumatic, or gas powered actuators
•Operated from a remote location
•Communication network required
•Operator reviews and evaluates data prior to positioningvalve
•RCV introduces human intervention, decision making, andevaluation
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 5/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Device (EFRD)Device (EFRD)
• EFRD means either:
– Check valve
• Permits fluid to flow freely in one direction
• Contains a mechanism that prevents back flow
– Remote Control Valve
• Any valve that is operated remotely
• Usually operated through SCADA
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 6/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Current Regulatory RequirementsCurrent Regulatory Requirements
• Part 194 - Response Plans for Onshore Oil Pipelines
– Worst Case Discharge Calculations
• Part 195 – Transportation of Liquids by Pipelines
– Design
– Construction
– Integrity Management
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 7/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Worst Case DischargeWorst Case Discharge
• §194.105
– Determine worst case discharge for each response zone
– Worst Case Discharge is one of the following:
• (Maximum release time + Maximum shutdown
volume
– Drainage volume directly affected by valve
placement and actuation time
• Capacity of single largest breakout tank or battery of breakout tanks within sin le containment
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 8/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Valve Design Requirements Valve Design Requirements
• §195.116
– Sound engineering design
– Compatible to pipeline material and fluid medium
– Clearly indicates position of valve
– Marked with manufacturer’s data
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 9/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
ConstructionConstruction
• §195.258
– Valve must be installed in a location that is accessible toaut or ze emp oyees
– Protected from damage or tampering
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 10/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
ConstructionConstruction
• §195.260– Valve must be installed at each of the following locations:
• Suction end of discharge pump
• Each line entering or leaving breakout storage tank area
accidental discharge
• Lateral takeoff from trunk line
• Each side of a water crossing that is more than 100 feetwide
• Each side of reservoir holding water for humanconsumption
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 11/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Integrity Management in HCAsIntegrity Management in HCAs
• §195.452
– General requirement
• Prevent pipeline failures
• Mitigate consequences of a pipeline failure in HCAs
• Risk analysis must identify additional measures toprotect the HCA and enhance public safety orenvironmental protection
• Additional measures based on identified threats
• Installing EFRDs are additional measures
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 12/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Integrity Management in HCAsIntegrity Management in HCAs
• §195.452
– Factors to consider when installing EFRDs based on riskana ys s:
• Swiftness of leak detection and shutdown capabilities
• Volume that can be released
• Pipeline topography, profile, and terrain
• Location of nearest res onse ersonnel
• Benefits of reducing spill size
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 13/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Emergency ResponseEmergency Response
• Pipeline Emergency Response Forum Washington DC,December 9, 2011
• ey po nts:
• Mitigation
• Response
•
• Enhancing pipeline emergency management involvesconsidering non-IM requirements for ASVs and RCVs
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 14/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Montana Governor’s Task ForceMontana Governor’s Task Force
• Joint Study between MT Governor and PHMSA followingJuly 1, 2011 Exxon Mobil crude oil spill into Yellowstone
.
• Study conducted to ensure integrity of petroleum pipelines
crossing major rivers in Montana, with a focus on depth of .
• Evaluate adequacy of pipeline installation, leak detection,and valve placement/actuation at major water crossings
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 15/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Pipe ine a ety, Regu atory ertainty, anPipe ine a ety, Regu atory ertainty, anJob Creation Act of 2011Job Creation Act of 2011
• By January 2013 – requires a study conducted by theomptro er enera o t e n te tates t at
addresses product release located within an HCA
• By January 2014 – requires by regulation the use of Automatic or Remote Controlled Shut-off valves, or
,replaced facilities
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 16/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
StudiesStudies
• March 1991 – Emergency Flow Restricting Devices Study– Required by the Pipeline Safety Reauthorization Act of
- -
• 1995 – Remote Control Spill Reduction Technology: ASurve and Anal sis of A lication for Li uid Pi elineSystems
– Model was created to show optimal utilization of EFRDS
• RCVs cost more
• Lead to better response time
• an manua va ve op mum spac ng arecomparable
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 17/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Rule MakingRule Making
• –for liquid and gas pipelines. This ANPRM was withdrawn. (43 FR 39402)
• February 1987 – ANPRM proposed to convert shutoff valves to ASVs or RCVs; theDepartment studied the selective use of ASVs and RCVs, but there was no
.
• May 1989 – Notice of Request for Information regarding SCADA, installation of ASV/RCV, costs to convert, valve spacing criteria. (54 FR 20945)
• January 1994 – ANPRM soliciting public input regarding a study of safety, cost,feasibility, and effectiveness of using EFRDs in existing and future pipeline systems.(59 FR 2802)
• October 2010 – ANPRM issued regarding whether changes are needed to regulationsgoverning on-shore hazardous liquid pipelines. Sought comment on whether to
require the installation of EFRDs on existing pipeline systems within HCAs based onrisk. (75 FR 63774)
• Note: EFRDs were addressed in IMP regulation 195.452 (i) on December1 2000 under Preventative and Miti ative Measures
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 18/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Best PracticesBest Practices
• Spill containment around valves – vaults, sumps, and leakdetection
• e e ypasses aroun va ves to a ow rap c osure anavoid overpressure events
• Inhibit switches or calculated valve transit times in valveactuation to prevent overpressure events
• Installed cameras at critical valve sites
• Solar panels/Nitrogen bottles actuation at sites with nocommercial power
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 19/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Vault Around Mainline Valve Vault Around Mainline Valve
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 20/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Overpressure Bypass Around ValveOverpressure Bypass Around Valve
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 21/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Valve Power in Remote Areas Valve Power in Remote Areas
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 22/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Operational ConcernsOperational Concerns
• Control Room Management/Operator Issues– Operator’s ability to recognize a situation that requires
response an requ re perm ss on to o so
– Pumping against closed valves
– computer system design
• Improper maintenance
– Cleaning seats/valve bodies, packing, gaskets,winterization, etc
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 23/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Improper MaintenanceImproper Maintenance
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 24/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Improper MaintenanceImproper Maintenance
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 25/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Other ConcernsOther Concerns
• Instrumentation and activation require power in remoteareas; may be subject to power outages
• ys ca an y er secur ty t reats
• Fluid Hammer / flow transients
• Parallel pipelines and Cross over valves must also beaddressed
8/22/2019 Chris Hoidal Presentation
http://slidepdf.com/reader/full/chris-hoidal-presentation 26/27
U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
Additional EFRDs Additional EFRDs
• Prescriptive requirements for EFRDs used in PHMSAEnforcement cases:
’ –
– Limit drain down volume by:
•
• Absolute Number of barrels that can drain down afterpump shutdown
• Risk-based calculated volume based on commodityand HCA characteristics
– Provide Comments to Registry website