Sabine Block 13: Oil Remediation

SS. W. BEAUMONT BACKGROUND – INTIAL INDICATION  OIL SHEEN OBSERVED BY HELICOPTER  PIPELINE WAS INITIAL PROBABLE CAUSE BUT WAS SOON DISCOVERED TO BE THE WRECK OF A SHIP  RESOLVE HIRED FOR AN INITIAL DIVE SURVEY

Assessment Phase Initial Dive Survey – September 3 rd 2009 Resolve crew conducted side scan sonar sweeps of where sheen was seen Dive support vessel followed sheen and entered water to do initial dive inspection Divers were able to determine that the vessel’s hull was only sticking out 4-6’ above the mud line and that the vessel was capsized approx 180 deg and heading SE to NW Divers also notes nickel size black bubbles floating up from the wreck but were unable to determine exactly where the source was due to a visibility of 3 inches near the bottom

LANA ROSE ASSESSMENT PHASE ALL PURPOSE SUPPORT VESSEL

Assessment Phase Back Deck of Support Vessel Lana Rose

Located Oil Oil was observed to be located in tanks; 1C, 4P, 5C, 5P, AND 5P deep tank

SS. W. BEAUMONT BACKGROUND - HISTORY  BUILT in 1944, WWII LIBERTY SHIP Under emergency ship building program  Program was established to keep up with the amount of vessels being sunk  Simple general cargo ships for carrying supplies and troops

TYPICAL LIBERTY SHIP Courtesy library of congress BACKGROUND

Specifics  LOA - 441’-6”, B – 56’-10.75”  SUNK IN TRANSIT TO PORT NED FOR SCRAPPING (EARLY 1970’S)  WATER DEPTH 40 FT  WATER TEMPERATURE 60-70° F

ASSESMENT PHASE 1 st Assessment – checked for the presence of oil 2 nd Assessment – quantify the oil present Divers used underwater magdrill w/ self tapping drill bit to drill into the hull. Sample holes were located using double bottom plans of a typical liberty ship.

DIVE SURVEY ASSESSEMENT PHASE DB PLAN / DIVER PREP. TO DIVE ON WRECK

TRAINING DIVERS ASSESSMENT PHASE MAGDRILL W/ SELF TAPPING DRILL BIT

Oil Recovery Phase Coast Guard Determined the need to extract the oil from the wreck Approx 16,000 gallons estimated on board Resolve Pioneer was immediately mobilized to act as dive/salvage platform throughout project Resolve Pioneer mobilized to act as dive/project management platform throughout project

RESOLVE PIONEER RECOVERY PHASE Transfer of dive gear from Lana to Pioneer Pioneer on site over wreck

SURVEY POSITIONING OIL RECOVERY PHASE

3D-IMAGE OVERLAY OF PIONEER OVER WRECK BACKGROUND

DECK OF PIONEER OIL RECOVERY PHASE Dive Shack FRAC tank Boiler

Dive Shack OIL RECOVERY PHASE

PROCESS OIL RECOVERY PHASE Installation of Flange Assemblies on Oil Tanks Circulation of oil from wreck through FRAC tank and back to the wreck. Due to the heavy viscosity of the cargo the oil must be heated in order to pump Heated oil skimmed from FRAC tank to oil stowage tank.

Closed Loop Circulation Cargo needed to be heated in order to pump Using closed loop heating system allowed cargo to be uniformly heated while keeping oil from entering the environment Better method than localized heating (such as using steam coils, steam injection, or water injection) as all of the oil is exposed to the heat. Easily allows cutting agents to be introduced while minimizing environmental risk Doesn’t allow any cargo to leak from vents

3D MODEL OF PUMPING OPS OIL RECOVERY PHASE

FLANGE ASSEMBLY OIL RECOVERY PHASE Flange Assembly Coupon Boring Bar

3” Desmi Pumps w/ Attached 3” Hose OIL RECOVERY PHASE

Hydraulic Power Pack OIL RECOVERY PHASE

Hose Installation OIL RECOVERY PHASE

Hose Installation OIL RECOVERY PHASE

OIL SKIMMING OIL REECOVERY PHASE

Product Tanks OIL RECOVERY PHASE FRAC Tank Receiving Mud Tank

Skimmers OIL RECOVERY PHASE

Results Of the estimated 16,000 gallons on board Resolve extracted 12,000 gallons of heavy oil Coast Guard & Resolve concluded there was no more pumpable product and the risk of leakage was mitigated enough to demobe equipment

Questions? Contact: Joseph Farrell III