Flow Line Regulations

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Flow Line Regulations

• 18 AAC 75.047

Alaska Department of Environmental
Conservation Spill Prevention and Response
Division Industry Preparedness Program
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What is a flow line?
18 AAC 75.990(173) "flow line" (A) means
piping and associated fittings, including all
valves, elbows, joints, flanges, pumps, and
flexible connectors, (i) containing liquid
oil (ii) located at a production facility
and (iii) that is installed or used for the
purpose of transporting oil between a well pad or
marine structure used for oil production and the
interconnection point with a transmission
pipeline and (B) includes all piping between
interconnections, including multi-phase lines and
process piping, except (i) facility oil piping
and (ii) transmission pipelines
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What isnt a flow line?
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(No Transcript)
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How are flow lines regulated?

• Design construction standards
• Corrosion monitoring control
• Preventative maintenance
• Line markers
• Removal from service requirements
• Line supports
• Compliance documentation recordkeeping

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Design construction standards

• ASME B31 series industry standards for design and
  construction of pipe
• ASME B31.4, Pipeline Transportation Systems for
  Liquid Hydrocarbons and Other Liquids
• ASME B31.8, Gas Transmission and Distribution
  Piping Systems
• Other equivalent and nationally recognized
  standard
• Design construction standards become effective
  31 December 2008 (2 year phase-in)

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Corrosion monitoring control

• Industry standards
• ASME B31.4, Chapter VIII
• NACE RP0169-2002 for external corrosion control
  on submerged or buried lines
• External corrosion control
• Protective coatings on aboveground lines or
  corrosion-resistant material
• Internal corrosion control program
• Pigging, inhibitors, biocides, coatings, linings,
  etc.
• Corrosion monitoring control requirements
  become effective 31 December 2007 (1 year
  phase-in)

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Preventative maintenance

• Choice either
• Use a bundled pipe with an interstitial leak
  detection system, or
• Have a preventative maintenance system in place
• Preventative maintenance system
• Consistent with ASME or API standards
• Effective 31 December 2007 (1 year phase-in)

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Preventative maintenance program standards

• Submerged lines
• ASME B31.4, Chapters VII through IX
• Buried lines
• ASME B31.4, Chapters VII VIII
• Aboveground lines
• API 570 (except Section 8) and
• ASME B31.4, Chapters VII VIII
• All preventative maintenance programs must have
  procedures for management of change

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Line markers, removal from service, and pipe
supports

• Line Markers
• One mile intervals and at each road crossing
• Effective 31 December 2007 (1 year phase-in)
• Removal from service
• Pig, drain, or blow pipe to remove oil
• Effective 31 December 2006 (now)
• Pipe supports
• ASME B31.4, Paragraph 421
• Effective 31 December 2006 (now)

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Documentation / Recordkeeping

• Documentation of measures taken to comply with 18
  AAC 75.047
• Corrosion control
• Preventative maintenance
• Maintain records for minimum of five years
• Records must be available to ADEC upon request

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Other changes to 18 AAC 75, Article 1 that affect
North Slope operations

• Increased prevention training and documentation
  requirements
• Revised regulations for aboveground oil storage
  tanks
• field-constructed oil storage tanks
• shop-fabricated oil storage tanks
• Revised regulations for facility piping

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Prevention training

• Moved into its own section and expanded
• Personnel that inspect, maintain, operate oil
  storage and transfer equipment must be trained
  regarding company and state spill prevention
  measures
• Job descriptions and training level needed
• Keep training records for 5 years

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Aboveground storage tanks

• Two types defined
• Field-constructed storage tank
• Constructed to API 650, API 12B, 12C, 12D, 12E,
  12F, or 12P
• Inspected to API 653 or API 12R1
• Shop-fabricated storage tank
• Constructed to UL 142 or similar standard
• Inspected to API 653 or STI SP001

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Facility oil piping

• New definition Piping and associated fittings
  originating from or terminating at a regulated
  oil storage tank or an exploration or production
  well
• Three classes of facility oil piping, based on
  installation date
• Before May 14, 1992 no construction standard
  applies
• May 14, 1992 thru 2008 protective coating and
  cathodic protection, all welded
• 2009 or later ASME B31.3, B31.4, or B31.8, or
  equivalent standard cathodic protection per NACE
  standard
• Inspection consistent with API 570 inspection
  standard by 2008

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Effective Dates

• Regulations covering design and construction go
  into effect in 2009
• Regulations covering operations and maintenance
  go into effect in 2008
• Remaining regulations - December 30, 2006

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Questions?

• Craig Wilson
• Industry Preparedness Program
• Spill Prevention and Response Division
• Alaska Department of Environmental Conservation
• www.dec.state.ak.us/spar/ipp