EDRC Update

John CaplisBSEE Oil Spill Response Division

SCAA Annual Meeting

Progress Report

EDRC Workshop @ International Oil Spill Conference May 2011

Genwest Study completed Dec 2012

National Academy of Science Peer Review completed Nov 2013

System-based Recovery

&

Encounter Rate Enhanced Swath

Skimmer, Pump & Storage

Open Apex

Secondary

Backup” Storage

Nominal “THICK” Oil

Thicknesses After 12 hours

(mid-day 1)

2.5 mm

After 36 hours

(mid-day 2)

1.0mm

After 60 hours

(mid-day 3)

0.6 mm

Oil Encounter RateDay 1

(bbl/hr)Day 2

(bbl/hr)Day 3

(bbl/hr)

System Areal Coverage Rate = ƒ (swath, speed, skimming time )

Estimated Recovery System Potential

(For each day’s Operating Window)

Day 1 (bbl)

Day 2 (bbl) Day 3 (bbl)

System Recovery = ƒ (RE, TE, NPRR, Pump Rates, etc)

ERSP System Variables

Concentrate &Collect Oil Recover Oil

Store Oil(on Skimmer)

Transit &Transfer Oil

• System Swath & Speed• Oil Thickness• % Emulsion

• Nameplate Recovery Rate• Recovery Efficiency• Throughput Efficiency

• Onboard Storage• % Decant• Decant Pump Rate

• Transit Time• Rig/Derig Time• Discharge Pump Rate

ERSP Calculator

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

ERSP Strengths

Incentives for better performance

Looks at whole system

Factors in encounter rate issues

Emphasizes rapid response

Well suited for offshore equipment

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

ERSP Beta Testing

OSRB (Barge)

Koseq Arms

OSRV

OSRV

95 ‘ OSRV

Shallow Water Barge

Shallow Water Barge

46 ‘ OSRV

VOSS Unit

OSRB (Barge)

ERSP Next Steps

Continue beta testing dialogue with industry

Address NAS Report Recommendations

OSRP Equipment Requirements Study

Possible Public Workshop once Study is completed

Websites: www.bsee.gov

www.genwest.com/edrcproject www.nap.edu/catalog.php?record_id=18579