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EDRC Update

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  1. EDRC Update John Caplis BSEE Oil Spill Response Division SCAA Annual Meeting

  2. Progress Report • EDRC Workshop @ International Oil Spill Conference May 2011 • Genwest Study completed Dec 2012 • National Academy of Science Peer Review completed Nov 2013

  3. System-based Recovery & Encounter Rate Enhanced Swath Open Apex Skimmer, Pump & Storage Secondary Backup” Storage

  4. Nominal “THICK” Oil Thicknesses Oil Encounter Rate After 12 hours(mid-day 1) 2.5 mm Day 1 (bbl/hr) After 36 hours(mid-day 2) 1.0mm Day 2 (bbl/hr) After 60 hours(mid-day 3) 0.6 mm Day 3 (bbl/hr) System Areal Coverage Rate = ƒ (swath, speed, skimming time ) System Recovery = ƒ (RE, TE, NPRR, Pump Rates, etc) Estimated Recovery System Potential (For each day’s Operating Window) Day 1 (bbl) Day 2 (bbl) Day 3 (bbl)

  5. ERSP System Variables ERSP Calculator • Nameplate Recovery Rate • Recovery Efficiency • Throughput Efficiency • Onboard Storage • % Decant • Decant Pump Rate • System Swath & Speed • Oil Thickness • % Emulsion • Transit Time • Rig/Derig Time • Discharge Pump Rate Concentrate & Collect Oil Store Oil (on Skimmer) Transit & Transfer Oil Recover Oil

  6. NAS Peer Review • ERSP Methodology sound • Use ASTM 2709-08 for Nameplate Rates • Consider different planning scenarios • Consider patchiness of thick oil • Develop more detailed user guide • Consider all response options

  7. ERSP Strengths • Incentives for better performance • Looks at whole system • Factors in encounter rate issues • Emphasizes rapid response • Well suited for offshore equipment

  8. ERSP Challenges • Assumes best practices for oil spotting • Guidance needed on input values • Mobilization & transit to spill not included • Maneuverability not factored in • Nearshore requirements not addressed • Not suited for inland environment

  9. ERSP Beta Testing OSRB (Barge) OSRB (Barge) OSRV OSRV 95 ‘ OSRV Koseq Arms Shallow Water Barge Shallow Water Barge 46 ‘ OSRV VOSS Unit

  10. ERSP Next Steps • Continue beta testing dialogue with industry • Address NAS Report Recommendations • OSRP Equipment Requirements Study • Possible Public Workshop once Study is completed

  11. Websites: www.bsee.gov www.genwest.com/edrcproject www.nap.edu/catalog.php?record_id=18579