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Flow Line Regulations

Flow Line Regulations. 18 AAC 75.047. Alaska Department of Environmental Conservation Spill Prevention and Response Division Industry Preparedness Program. What is a flow line?. 18 AAC 75.990(173) "flow line"

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Flow Line Regulations

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  1. Flow Line Regulations 18 AAC 75.047 Alaska Department of Environmental Conservation Spill Prevention and Response Division Industry Preparedness Program

  2. 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;

  3. What isn’t a flow line?

  4. How are flow lines regulated? • Design & construction standards • Corrosion monitoring & control • Preventative maintenance • Line markers • Removal from service requirements • Line supports • Compliance documentation & recordkeeping

  5. 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)

  6. 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)

  7. 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)

  8. 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

  9. 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)

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

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

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