DOI/BOEMRE FORUM OIL SPILL RESPONSE IN OFFSHORE ALASKA 26 th AUGUST - - PowerPoint PPT Presentation

▶
doi boemre forum oil spill response in offshore alaska
SMART_READER_LITE
LIVE PREVIEW

DOI/BOEMRE FORUM OIL SPILL RESPONSE IN OFFSHORE ALASKA 26 th AUGUST - - PowerPoint PPT Presentation

Aug 01, 2023 39 likes •180 views

DOI/BOEMRE FORUM OIL SPILL RESPONSE IN OFFSHORE ALASKA 26 th AUGUST 2010 Anchorage, Alaska Peter Velez Global Emergency Response Manager Shell Shell Exploration & Production Company 10/1/2010 1 Layers of Prevention No single incident

slide-1
SLIDE 1

Shell Exploration & Production Company

DOI/BOEMRE FORUM OIL SPILL RESPONSE IN OFFSHORE ALASKA

26th AUGUST 2010 Anchorage, Alaska Peter Velez Global Emergency Response Manager Shell

10/1/2010 1

slide-2
SLIDE 2

Shell Exploration & Production Company 10/1/2010

Layers of Prevention

No single incident leads to the worst case blowout scenario

  • Phase I – Proper Planning, Drill Well on Paper

(DWOP) workshops, Risk Identification, Training, Routine Drills on Rig (BOP Tests, Pit Drills, Trip Drills) Phase II – Early Kick Detection & Kick Response Procedures. Continuous Monitoring (including use of RTOC). Response: shut down pumps – flow check – shut in – kill well

  • Phase III – Mechanical Barriers (including special

arctic barriers). Testing & inspection criteria in place to ensure competency

  • Phase IV – Loss of Control – Relief Well Operations

Contingency plans in place for the worst case scenario

slide-3
SLIDE 3

Shell Exploration & Production Company 10/1/2010

Oil Spill Contingency Plan Support

Heli

3 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-4
SLIDE 4

Shell Exploration & Production Company

Multi-Layer Response Overview

10/1/2010

Nearshore Vessels

  • Barge
  • Work boats
  • Skimming vessel
  • Mini barges

Skimmers & Pumps Booms Misc Equipment

  • Decon connex
  • Workshop/Tool connex

Offshore Vessels

  • OSRV (Nanuq)
  • Arctic Tanker
  • Work boats
  • Vessel of Opportunity

Skimmers & Pumps Booms Onshore Vessels

  • landing craft & utility

vessels Booms Misc Equipment

  • Storage & tools

4 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-5
SLIDE 5

Shell Exploration & Production Company 10/1/2010

Differences In Arctic Which Can Impact Recovery

 Less Evaporation  Reduced Spreading & Smaller Area Affected  Viscosity  Weathering  Shallow Water & Open Water Drilling  In-Situ Burning  Ice – Positive & Negative  Challenges – late permits to utilize

dispersants

slide-6
SLIDE 6

Shell Exploration & Production Company

Learning from Gulf of Mexico

 Depth of Source  Successful Application of Dispersants by A/C &

Subsea

 In-Situ Burning  Mechanical Equipment & Booming  Coastline Protection  Detection, Monitoring, & Modeling  Resources & Toolkit – Ability to Cascade  Multiple Command Centers Creates Complications  Dome (hydrates & positioning in deepwater)

10/1/2010 6 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-7
SLIDE 7

Shell Exploration & Production Company 1+ MILE DIAMETER OF OIL SLICK

MAIN GAS BOIL SURFACE WATER TEMP 85 F OIL DRIFT OFF MULTIPLE OCEAN CURRENT LAYERS SEAFLOOR WATER TEMP 36 F SEA FLOOR BOP STACK

WORST CASE DISCHARGE = 162,000 BOPD BOTTOM HOLE PRESSURE = 15,000 PSI FLUID VELOCITY AT BOP WITHOUT RISER = 330 FT/MIN

ZONE OF DETERIORATION LOSING GAS AND WATER WITH OIL WATER IN FLOW MUDLINE CELLAR BOP STACK SEAFLOOR WATER TEMP 34 F RADIAL OUTFLOW SLIM COLUMN RADIAL INFLOW

WORST CASE DISCHARGE = 5,500 BOPD BOTTOM HOLE PRESSURE = 5,000 PSI FLUID VELOCITY AT BOP WITHOUT RISER = 11 FT/MIN

WATER SURFACE

Oil Spill Behavior – 150’ vs 5000’ W.D.

SURFACE WATER TEMP 35 F WATER SURFACE

5000’ WATER DEPTH RANGE FROM >10 MIN TO DAYS FOR SURFACING OF OIL

JET ZONE QUIET GAS BUBBLING LITTLE REDUCED WATER MOVEMENT

150’-250’ DIAMETER OF OIL SLICK

MAIN GAS BOIL JET ZONE

150’ WATER DEPTH < 10 SEC TO SURFACE

THINNER OIL THICKER OIL SEA FLOOR

10/1/2010 7 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-8
SLIDE 8

Shell Exploration & Production Company

Alaska Canada United States

Lower 48

U.K.

Shell Chukchi Shell Beaufort MSRC Maine MSRC New Jersey MSRC Georgia MSRC Florida MSRC California MSRC Texas MSRC Louisiana OSRL Southampton ACS/AES-RO, UIC, CISPRI Anchorage SERVS Valdez CCA Florida MSRC Mississippi

Oil Spill Response Equipment – Resource Cascading

MSRC Arizona Mackenzie Delta Spill Response Corp. Burrard/WCMRC Vancouver MSRC Washington Clean Islands Council Hawaii ECRC Dartmouth, St John’s

10/1/2010 8 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-9
SLIDE 9

Shell Exploration & Production Company

Enhancements to Containment & Response

10/1/2010 9 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

Pre-fabricated dome built & staged in Alaska * Shell Commitment * Member of Marine Well Containment Company

slide-10
SLIDE 10

Shell Exploration & Production Company 10

Oil Spill Response R&D

 Objectives  Increase response efficiency & reduce environmental impacts  Obtain new & enhanced tools, & assessment of environmental impacts  Focus areas:  Containment & mechanical recovery  Advanced response techniques (burning, dispersants, herders)  Detection, monitoring, & modelling  Environmental impacts of untreated, dispersed, or burned oil

DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-11
SLIDE 11

Shell Exploration & Production Company 11

Research & Development – Completed & In-Progress

Project Name Mechanical Recovery Burning, Dispersants , & Herders Detection, Monitoring, & Modelling Environment al Impacts of Untreated, Dispersed, or Burned oil

SINTEF JIP on Oil in Ice

x x x x

Coastal & Shoreline Oil Spill Response JIP

x x x x

Response Options Calculator (ROC)

x x x

JIP on Effects & Biodegradation Rates of Dispersed Oil in Arctic Marine Environment

x

DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-12
SLIDE 12

Shell Exploration & Production Company 12

Upcoming OSR Arctic Research – IPIECA/OGP

 Further study environmental impacts of oil spill & response options  Analyze fate of dispersed oil under broken ice field with dispersant use  Conduct experimental spill with use of dispersants in broken ice. Collect

data on dispersion efficiency, fate of dispersed oil droplets, environmental impacts, & biodegradation rates

 Improve capability of oil detection, especially in broken ice & at low

visibility & under ice

 Identify new concepts for mechanical response to large spills in broken

ice & under ice

 Develop ignition techniques for long distance transport & aerial ignition  Use of oil herders  Develop capability to predict oil trajectory in ice covered seas with

different ice concentrations

DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-13
SLIDE 13

Shell Exploration & Production Company

Opportunities & Improvements

 Ability to use all Response Tools – Mechanical,

Dispersant, ISB, etc.

 Pre-approvals for Dispersants  Containment – Recover oil at source, Credit to

WCD

 Access to Satellite Imagery  API/NOIA OSR Task Force Recommendations  IPIECA OSR in Arctic JIP – Projects that follow

after SINTEF JIP in Ice

 X Prize Challenge Competition for Oil Spill

Response System Technology

PREVENTION + CONTAINMENT + RESPONSE

10/1/2010 13 DOI/BOEMRE Forum, Anchorage, Alaska August 26, 2010

slide-14
SLIDE 14

Shell Exploration & Production Company 10/1/2010 14 DOI/BOEM Forum, Anchorage, Alaska August 26, 2010