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Identifying Segments that Can Affect HCA’s Using A NPMS Data Extraction Technique

Identifying Segments that Can Affect HCA’s Using A NPMS Data Extraction Technique. Brad Lewis Kinder Morgan Energy Partners. Code Requirement.

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Identifying Segments that Can Affect HCA’s Using A NPMS Data Extraction Technique

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  1. Identifying Segments that Can Affect HCA’s Using A NPMS Data Extraction Technique Brad Lewis Kinder Morgan Energy Partners

  2. Code Requirement § 195.452 “…an operator must develop a written integrity management program that addresses the risks on each pipeline segment that could affect a high consequence area.”

  3. Code Requirement § 195.452 “…an operator must develop a written integrity management program that addresses the risks on each pipeline segment that could affect a high consequence area.” (emphasis added)

  4. Outline • High Consequence Areas Defined • Defining HCA’s - a key Integrity Management Program Development Objective • NPMS (National Pipeline Mapping System) • Defining HCA “impact zones” • Conclusions

  5. High Consequence Areas • High Population Areas • Other Population Areas • Commercially Navigable Waterways • Ecological USA (14 States) • Drinking Water USA (10 States)

  6. Identify Potential Pipeline Impact to HCAs (12/31/01) Initial Data Gathering, Review, and Integration 1 Initial Risk Assessment 2 Develop Baseline Plan (3/31/02) 4 Perform Inspection and/or Mitigation Evaluate Program 3 Revise Inspection & Mitigation Plan Update, Integrate, and Review Data Reassess Risk Manage Change Defining HCA’s - a keyIntegrity Management Objective Source: API 1160 latest draft

  7. National Pipeline Mapping System 154,000+ miles 86% • Positional accuracy of ±500 ft has been attempted for all pipelines and LNG facilities. • Positional accuracy is: • E = Excellent: within 50 ft • V = Very Good: 50-300 ft • G = Good: 301-500 ft • P = Poor: 501-1000 ft • U = Unknown

  8. Defining HCAImpact Zones • Direct Impact Zone– identify points at which pipeline enters and exits an HCA • Indirect Impact Zone– identify HCA’s within set proximity to the pipeline (e.g., ±100ft., ±660ft., ±1 mile) - boundaries based on operating pressure, product type, HCA type(?), etc. • Potential Transport Zone– Evaluate additional zones (beyond direct or indirect) where a rupture has potential to migrate into an HCA - analysis based on rupture volume, product type, terrain conditions, etc.

  9. Direct Impact Zone Identification

  10. Direct Impact Zone Identification

  11. Direct Impact Zone Identification

  12. Direct Impact Zone Identification

  13. Direct Impact Zone Identification

  14. Direct Impact Zone Identification

  15. Direct Impact Zone Identification

  16. Indirect Impact Zone Identification • What about nearby HCA’s that do not intersect with the pipeline? • What type of buffer should I consider for nearby HCA’s?

  17. Indirect Impact Zone Identification

  18. Indirect Impact Zone Identification

  19. Indirect Impact Zone Identification

  20. Indirect Impact Zone Identification

  21. Indirect Impact Zone Identification

  22. Indirect Impact Zone Identification

  23. Indirect Impact Zone Identification

  24. (off on a tangent)

  25. (off on a tangent)

  26. (off on a tangent)

  27. (off on a tangent)

  28. Potential TransportZone Identification • How do I address the potential for released product to migrate to a distant HCA? • Terrain surrounding the pipeline, including drainage

  29. Potential TransportZone Identification

  30. Potential TransportZone Identification

  31. Potential TransportZone Identification

  32. Potential TransportZone Identification [Prevention/Mitigation Section] 195.452 (i)(4) Emergency Flow Restricting Devices (EFRD). If an operator determines that an EFRD is needed on a pipeline segment to protect a high consequence area…”

  33. leak detection/shutdown speed commodity rate of potential leakage volume released topography or pipeline profile ignition sources proximity to power sources location of response personnel terrain between the pipeline segment and HCA benefits expected by reducing the spill size Potential TransportZone Identification 195.452 (i)(4) EFRD determination must include:

  34. One Final Thought • Why go to all this work? We already smart pig this line! • Knowing all these details about the HCA’s is not going to change my integrity assessment plans. • Why not just classify the entire pipeline as an HCA pipeline?

  35. One Final Thought

  36. One Final Thought

  37. The payoff for defining HCA’s is: • Application of repair criteria • Selection & application of prevention/mitigation activities One Final Thought

  38. Conclusions • Defining HCA “impact zones” with NPMS data is possible • Custom software required • Defining “transport zones” may require additional analysis & data collection • Determination of EFRD requirements may be satisfied as a byproduct of the HCA Transport Zone study • Defining HCA’s should produce a large and rapid return

  39. Further Information Brad Lewis Kinder Morgan Energy Partners LewisB@KinderMorgan.com 520/514-1065 ext. 983

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