Petrobras America, Inc. Cascade & Chinook Subsea Project. Manifolds and Pump Stations. Loaded Onboard Deck Cargo Barge BARGE 410

Transcription

1 Petrobras America, Inc. Cascade & Chinook Subsea Project Manifolds and Pump Stations Loaded Onboard Deck Cargo Barge BARGE 410 MD Ref: To: Attn: S S31 Petrobras America, Inc Richmond Ave., Suite 1400 Houston, Texas Mr. Gus Cassity Matthews-Daniel Company t (713) houston@matdan.com 4544 Post Oak Place, Suite 160 f (713) Houston, Texas 77027

2 Date: August 31, 2009 Petrobras American, Inc. Cascade & Chinook Subsea Project Manifolds and Pump Stations - Loaded Onboard Deck Cargo Barge BARGE 410 MD Ref: S S31 A surveyor did, on August 3, 2009 and subsequent dates, attend the loading of two (2) manifolds and two (2) pump stations onboard the deck cargo barge BARGE 410 at Spitzer Industries, Houston, Texas. The purpose of this survey was to ascertain the suitability of loading and securing of subject cargo and further to ascertain the suitability of towing arrangements from Spitzer Industries, Houston, Texas to the Installation site in care of installation vessel MSV DEEP BLUE in Walker Ridge Area, Block 249, US Gulf of Mexico. This survey was assigned by Mr. Gus Cassity on behalf of Petrobras American, Inc. and for the account of Petrobras American, Inc. ATTENDING Mr. Alex Hague Site Representative Mr. Tim Caws Installation Engineer Mr. Mike Perceval Installation Specialist Mr. Keller Brandon Project Coordinator Mr. Loren Smith Chief Engineer Mr. John Hensley Operations HSE Advisor Mr. Christopher M. Bowman, NAMS-CMS Marine Surveyor REPRESENTING Petrobras American, Inc. Technip USA, Inc. Technip USA, Inc. Spitzer Industries Signet Maritime Corporation Petrobras American, Inc. Petrobras American, Inc. Matthews-Daniel Company t (713) houston@matdan.com 4544 Post Oak Place, Suite 160 f (713) Houston, Texas 77027

3 Cascade & Chinook Subsea Project Page 2 BARGE 410 DETAILS - DETAILS The BARGE 410 is an ocean class deck cargo barge, 400' x 99' 6" x 20', owned by Vessel Management Services, Inc. and operated by Crowley Marine Services, Inc., with a rounded raked bow complete with full breadth breakwater, raked stern with twin skegs, flat deck, flat bottom with rounded bilge knuckles and straight vertical sides. Particulars Official Name : BARGE 410 Official Number : IMO Number Call Sign Owners Operators Flag Home Port : None : None : Vessel Management Services, Inc. : Crowley Marine Services, Inc. : USA : San Francisco, California Registered Dimensions Tonnages Length: Breadth: Depth: Gross: Net: 400' 99' 6" 20' 6,642 ST 6642 ST Built By / At : Bethlehem Steel Corporation / San Francisco, California Year Built : 1974 Hull Number : 4114 Intended Service : Ocean Deck Barge

4 Cascade & Chinook Subsea Project Page 3 Certification Certificate No. Issued by Date Expires Certificate of Class - Hull ABS 1/15/09 9/29/13 Certificate of Documentation USCG 1/20/09 1/31/10 International Load Line Certificate ABS 1/15/09 9/29/13 Last Survey 7/20/09 Stability Letter / Document Compartmentation : Eighteen (18) watertight compartments consisting of three (3) bow rake, three (3) stern rake and twelve (12) midbody divided by two (2) longitudinal watertight bulkheads in compartment Nos. 1, 3, 4, 5 and 8 and two (2) longitudinal swash bulkheads in compartment Nos. 2, 6 and 7 and seven (7) transverse watertight bulkheads. All compartments fitted with 30" x 18" oval flush double bolt watertight type manways. Outfitting Deck Fittings Raised Fo'c'sle Deck: Two (2) towing padeyes, one (1) centerline emergency tow wire padeye, one (1) tow bridle recovery tower with towing diamond on top, one (1) electric tow wire recovery winch, five (5) closed chocks, two (2) kevel bitts and two (2) sets double post bitts. Bow: Sides: Stern: One (1) full-breadth breakwater with raised fo'c'sle deck on top and one (1) 3-cylinder Deutz 23 Hp diesel engine with generator to power the tow wire recovery winch. Five (6) Kevel bitts per side. Three (3) Kevel bitts, three (3) closed chocks and two (2) sets of double post bitts.

5 Cascade & Chinook Subsea Project Page 4 Navigation Lights and Day Shapes : Port, starboard and astern light stands fitted with shields and solar charged battery powered lights with day/night photo-senor and switch. Towing Gear : Tow (2) towing padeyes erected on the raised fo'c'sle deck, each with a 90' x 2 1/2" dia. studlink chain bridle leg to a connected to 90' x 2 1/2" dia. studlink chain pigtail. All shackles are 123-ton SWL safety type towing shackles. Emergency Tow Gear : 2 1/4" diameter steel wire shackled into the centerline padeye with a 123-ton SWL safety type towing shackle and faked and clipped into a Flemish coil across the exterior facing of the breakwater. One (1) 3/4" x 450' messenger wire shackled into the emergency tow wire with a 55-ton SWL safety type towing shackle and then lead across bow to starboard and down starboard side to the stern, outboard and over all obstructions and clipped at regular intervals along the length.. Wires terminated on both ends in poured spelter socket. In addition there is an emergency tow wire recovery line consisting of 3" x 250' poly-line coiled on the starboard stern with a recovery buoy attached. Ground Tackle : None. Ballast System : None. Service System : None.

6 Cascade & Chinook Subsea Project Page 5 General Condition As sighted afloat on August 3, 2009, at Spitzer Industries, Houston, Texas, the, BARGE 410 is considered satisfactory for the proposed tow. LOADOUT DETAILS The BARGE 410 was moored starboard side to the quay at Spitzer Industries, Houston, Texas with six (6) 3" diameter synthetic mooring lines. Transport grillage for the two (2) manifolds and two (2) pump stations was pre-installed prior to barge arrival with the manifold grillage mounted on the port bow and the pump station grillage mounted on the starboard stern. Loadout of the manifolds and pump stations was completed by the D/B BIG JOHN and due to the extensive out-reach, rotation of the barge was not required to safely land out all four (4) lifts. The manifolds and pump stations were staged in pair's quayside on set-up blocks, one (1) manifold with one (1) pump station, at opposite ends of the barge. The D/B BIG JOHN was maneuvered into position by two (2) tug boats, perpendicular to the quayside and in front of each lift. The tug boats maintained position while the ancillary lift rigging was connected to the pre-installed lift rigging on each item. The D/B BIG JOHN then lifted the load, the tug boats maneuvered the D/B BIG JOHN alongside the barge, perpendicular to the grillage and the load was set down onto the grillage. This routine was repeated for each of the four lifts. The two (2) manifolds were loaded first and then the two (2) pump stations were loaded second. Immediately upon completion of the loadout, seafastening installation was commenced. However, due to unforeseen clashes between manifold/pump station structural foundation supports and inaccuracies in dimensional control, a large number of the seafastenings required modifications to permit proper fit-up. Upon completion of seafastening installation and final acceptance, the barge was towed to Texas Terminals, Houston, Texas for ballasting operations. The barge was ballasted down to an even keel condition with drafts at 12' fore and aft. This draft allowed the barge to properly lay in alongside the MSV DEEP BLUE offshore for installation of the manifolds and pump stations. Once ballasting operations were completed and the manways were re-sealed on the barge deck, the Tow Approval Certificate was issued to the Master of the M/V MARINER.

7 Cascade & Chinook Subsea Project Page 6 Loadout Equipment (Lifting Method) D/B BIG JOHN Details The derrick barge BIG JOHN is a shear leg crane type derrick barge. All machinery is located on the main deck of the barge. The barge has a flat deck and bottom, square vertical stern, straight vertical sides and square raked bow. Official Name : BIG JOHN Official Number : Call Sign Owners Operators Flag Home Port : None : Big John Marine : Big John Marine : USA : Houston, Texas Registered Dimensions Operating Drafts Tonnages Length: Breadth: Depth: Normal: Maximum: Minimum Traveling: Gross: Net: m m m 4' 6" 7' 9" 2' 9" 1,290 ST 1,290 ST Built By : Equitable Equipment Company, Inc. Year Built : 1957 Hull Number : 988 Intended Service : Inland / Coastal Waters Derrick Barge

8 Cascade & Chinook Subsea Project Page 7 Crane The BIG JOHN shear leg crane is equipped with a 24-part main block with a maximum capacity of 500 ST at 15' forward of the barge's headlog. The No. 2 block has a maximum capacity of 200 ST at 20' forward of the barge's headlog. The crane has a main mast pinned 37' aft of the headlog and a back-stay mast for topping the main mast. All lifting machinery is deck mounted and diesel engine powered. Rigging Particulars Rigging Particulars (Manifolds) Rigging Particulars (Pump Stations) Supplied By: Weight: Slings: Shackles: Supplied By: Weight: Slings: Shackles: Supplied By: Weight: Slings: Shackles: Big John Marine 1,500 lbs. Two (2) 1 3/4" dia. x 20' 3-part gator slings One (1) 300-ton SWL Technip 3,000 lbs. Four (4) 2 3/4" dia. x 20' slings with two (2) 350-ton SWL Master-Links One (1) 300-ton SWL Technip 4,000 lbs. Four (4) 2 3/4" dia. x 42' slings with two (2) 380-ton SWL Master-Links One (1) 300-ton SWL

9 Cascade & Chinook Subsea Project Page 8 Synopsis of Events August 3, 2009 The undersigned surveyor arrived at Spitzer Industries, Houston, Texas at 0651 hours. The Crowley deck barge, BARGE 410 was moored starboard side to the quay with transport grillages pre-installed for the manifolds and the pump stations. The Cascade East manifold and the Pump Station No. 1 were staged quayside astern of the barge and the Chinook manifold and the Pump Station No. 2 was staged quayside off the bow of the barge. Spitzer Industries was in the process of erecting a gangway for access to the barge. A pre-loadout meeting was attended from 0803 hours until 0818 hours in Spitzer's main conference room with representatives from Technip, Petrobras and Spitzer in attendance. The D/B BIG JOHN arrived alongside the quay at Spitzer Industries at 0854 hours and a loadout JSA was held from 0927 hours until 0936 hours to discuss and address loadout safety. Loadout of the Cascade East manifold commenced at 0945 hours and was completed at 1013 hours with the manifold sitting on the forward transport grillage. Loadout of the Chinook manifold commenced at 1045 hours and was completed at 1113 hours with the manifold sitting on the aft transport grillage. Loadout of the Pump Station No. 1 commenced at 1142 hours and was completed at 1202 hours with the Pump Station No. 1 sitting on the forward transport grillage Loadout of the Pump Station No. 2 commenced at 1224 hours and was completed at 1337 hours with the Pump Station No. 2 sitting on the aft transport grillage with all loadouts completed, the D/B BIG JOHN was released and departed Spitzer Industries. Installation of seafastenings on the manifolds and pump stations commenced at 1358 hours, including modifications to the con-conforming seafastenings. The undersigned surveyor departed Spitzer Industries, Houston, Texas at 1912 hours. August 4, 2009 The undersigned surveyor arrived at Spitzer Industries, Houston, Texas at 0648 hours. Spitzer Industries welders and fitters had worked through the previous night to modify the manifold and pump station seafastenings. Spitzer Industries personnel commenced fit-up and fastening of the modified seafastenings on both manifolds and both pump stations at 0731 hours. Technip personnel, with assistance from Spitzer Industries, commenced installation of the subsea crosshaul rigging on each of the four (4) lifts. At 1138 hours, the undersigned surveyor was informed by Mr. Loren Smith with Signet Maritime that the window of opportunity to shift the BARGE 410 from Spitzer Industries to Texas Terminals had expired and it would be early morning on August 5, 2009 for the next available opportunity. Spitzer Industries personnel continued with fit-up and fastening of the manifold and pump station seafastenings while Technip personnel continued with rigging up the crosshaul rigging.

10 Cascade & Chinook Subsea Project Page 9 Seafastenings on the Pump Station No. 1 were completed and approved for tow at 1351 hours and on the Pump Station No. 2 at 1401 hours. Seafastenings on the Cascade East manifold were completed and approved for tow at 1425 hours and on the Chinook manifold at 1439 hours. The undersigned surveyor departed Spitzer Industries, Houston, Texas at 1526 hours. August 5, 2009 The undersigned surveyor arrived at Spitzer Industries, Houston, Texas at 0648 hours. The BARGE 410 was found to be complete in all aspects and ready for tow to Texas Terminals for ballasting operations. Three (3) inland tow boats, M/V MISS EDNA, M/V OU311 and M/V STUD were alongside the barge to orchestrate the shift to Texas Terminals. The BARGE 410 was let go from the quay at 0755 hours and maneuvered off the quay for Texas Terminals at 0801 hours. The BARGE 410 arrived at Texas Terminals, Houston, Texas at 1011 hours and was moored up alongside the quay, starboard side to at 1033 hours. The offshore tug, M/V MARINER was alongside the quay as well. At 1048 hours, the M/V MARINER shifted in alongside the port side of the BARGE 410 and commenced making up the tow wire connection to the tow bridle. Four (4) 6" ballast pumps were set onboard the deck of the barge at 1149 hours and the necessary manways in way of the compartments to be ballasted were removed. Connection of the M/V MARINER's tow wire to the tow bridle on the barge was completed at 1204 hours. Ballasting of the BARGE 410 compartment No. 2 commenced at 1408 hours and ballasting of compartment No. 6 commenced at 1424 hours. Compartment No. 6 was completed at 1954 hours and compartment No. 2 was completed at 2009 hours. Ballasting of compartment No. 7 commenced at 2017 hours and was completed at 2143 hours, finishing ballasting operations. Final drafts were 11' 10" forward and 12' 0" aft. The Tow Approval Certificate was issued to the Master of the M/V MARINER at 2157 hours with the understanding that the tow was scheduled to depart at 0800 hours on August 6, The undersigned surveyor departed Texas Terminals, Houston, Texas at 2216 hours.

11 Cascade & Chinook Subsea Project Page 10 Cargo Arrangement and Securing Item/Weight and Dimension 1. Cascade East Manifold, 28,600 lbs. Position 1. Port bow outboard, forward of the Chinook manifold at Frame No. 7. Detail Securing 1. The Cascade East manifold is secured atop a purpose built transport grillage package, 30' x 20' x 5', fabricated from W12 wide flange beam sections. The transport grillage package is secured to the barge deck by a combination of welded stops and clips with three (3) clips welded along each side, port and starboard and two (2) clips welded along each end, fore and aft. Additionally, there are two (2) stops welded on the inboard sides of the grillage, port, starboard, fore and aft and on the outboard side of the grillage fore and aft. See Drawing No. I-DE TKU-246, Rev. B. The Cascade manifold is secured atop the transport grillage package by a bolt-on clip arrangement. Each clip assembly consists of a 12" x 10" x 1/2" base plate with two (2) 10" x 6" x 1/2" plate clips welded onto the base plate. The base plate is then notched with four (4) through holes to accommodate 1" dia. threaded bolts with lock-washers and backing nuts. The attachment location on the transport grillage package is also notched to accommodate the 1" dia. bolts with the nuts securing the bolts on the

12 Cascade & Chinook Subsea Project Page Chinook East Manifold, 209,640 lbs. 2. Port bow outboard, aft of the Cascade manifold at Frame No. 11. underside of the grillage beam. The clip assemblies are arranged in opposing pairs with one (1) on the outboard side of the manifold base and one (1) on the inboard side of the manifold base. In total, there are sixteen (16) clip assemblies with two (2) assemblies' inboard/outboard port, starboard, fore and aft. There was no torque requirement for the bolted connections. 2. The Chinook East manifold is secured atop a purpose built transport grillage package, 30' x 20' x 5', fabricated from W12 wide flange beam sections. The transport grillage package is secured to the barge deck by a combination of welded stops and clips with three (3) clips welded along each side, port and starboard and two (2) clips welded along each end, fore and aft. Additionally, there are two (2) stops welded on the inboard sides of the grillage, port, starboard, fore and aft and on the outboard side of the grillage fore and aft. See Drawing No. I-DE TKU-246, Rev. B. The Chinook manifold is secured atop the transport grillage package by a bolt-on clip arrangement. Each clip assembly consists of a 12" x 10" x 1/2" base plate with two (2) 10" x 6" x 1/2" plate clips welded onto the base plate.

13 Cascade & Chinook Subsea Project Page Pump Station No. 1, 316,400 lbs. 3. Starboard quarter outboard, forward of Pump Station No. 2 at Frame Nos. 29/30. The base plate is then notched with four (4) through holes to accommodate 1" dia. threaded bolts with lock-washers and backing nuts. The attachment location on the transport grillage package is also notched to accommodate the 1" dia. bolts with the nuts securing the bolts on the underside of the grillage beam. The clip assemblies are arranged in opposing pairs with one (1) on the outboard side of the manifold base and one (1) on the inboard side of the manifold base. In total, there are sixteen (16) clip assemblies with two (2) assemblies' inboard/outboard port, starboard, fore and aft. There was no torque requirement for the bolted connections. 3. The Pump Station No. 1 is secured atop a purpose built transport grillage package, 50' x 23' x 5', fabricated from W12 wide flange beam sections. The transport grillage package is secured to the barge deck by a combination of welded stops and clips with four (4) clips welded along each side, port and starboard and two (2) clips welded along each end, fore and aft. Additionally, there are four (4) stops welded on the outboard sides of the grillage, port, starboard and two (2) stops welded on the outboard sides of the grillage, fore and aft. See Drawing No.

14 Cascade & Chinook Subsea Project Page 13 I-DE TKU- 247, Rev. B. The Pump Station No. 1 is secured atop the transport grillage package by a bolt-on clip arrangement. Each clip assembly consists of a 12" x 10" x 1/2" base plate with two (2) 10" x 6" x 1/2" plate clips welded onto the base plate. The base plate is then notched with four (4) through holes to accommodate 1" dia. threaded bolts with lock-washers and backing nuts. The attachment location on the transport grillage package is also notched to accommodate the 1" dia. bolts with the nuts securing the bolts on the underside of the grillage beam. The clip assemblies are arranged in opposing pairs with one (1) on the outboard side of the pump station base and one (1) on the inboard side of the pump station base. In total, there are twenty-four (24) clip assemblies with two (2) assemblies inboard/outboard fore and aft and four (4) assemblies inboard/outboard port and starboard. There was no torque requirement for the bolted connections.

15 Cascade & Chinook Subsea Project Page Pump Station No. 2, 315,280 lbs. 4. Starboard quarter outboard, aft of Pump Station No. 1 at Frame Nos. 35/ The Pump Station No. 2 is secured atop a purpose built transport grillage package, 50' x 23' x 5', fabricated from W12 wide flange beam sections. The transport grillage package is secured to the barge deck by a combination of welded stops and clips with four (4) clips welded along each side, port and starboard and two (2) clips welded along each end, fore and aft. Additionally, there are four (4) stops welded on the outboard sides of the grillage, port, starboard and two (2) stops welded on the outboard sides of the grillage, fore and aft. See Drawing No. I-DE TKU- 247, Rev. B. The Pump Station No. 2 is secured atop the transport grillage package by a bolt-on clip arrangement. Each clip assembly consists of a 12" x 10" x 1/2" base plate with two (2) 10" x 6" x 1/2" plate clips welded onto the base plate. The base plate is then notched with four (4) through holes to accommodate 1" dia. threaded bolts with lock-washers and backing nuts. The attachment location on the transport grillage package is also notched to accommodate the 1" dia. bolts with the nuts securing the bolts on the underside of the grillage beam. The clip assemblies are arranged in opposing pairs

16 Cascade & Chinook Subsea Project Page One (1) Standard 8' x 8' x 20' Container 6. One (1) 8' x 5' high x 20' Junk Box 7. One (1) 5' x 5' x 5' Junk Box 8. One (1) 500-gallon Skidded Fuel Tank with containment skid. Tank reportedly contains 350-gallons of diesel fuel. 9. One (1) rack of acetylene and oxygen at 1,000 lbs. 5. Stowed midships with door aft. 6. Stowed midships just forward and to starboard of 20' container. 7. Stowed midships just forward of 20' container. 8. Stowed midships and outboard of 20' container to port well clear of any other cargo. 9. Stowed midships, just to starboard of the 8' x 5' x 20' junk box. with one (1) on the outboard side of the pump station base and one (1) on the inboard side of the pump station base. In total, there are twenty-four (24) clip assemblies with two (2) assemblies inboard/outboard fore and aft and four (4) assemblies inboard/outboard port and starboard. There was no torque requirement for the bolted connections. 5. Seafastened with two (2) per corner for a total of eight (8) 1" thick plate dogs 4" high by 8" long and welded to barge deck only with 3/8" fillet welds. 6. Seafastened with two (2) per corner for a total of eight (8) 1" thick plate dogs 4" high by 8" long and welded to barge deck only with 3/8" fillet welds 7. Seafastened with two (2) per corner for a total of eight (8) 1" thick plate dogs 4" high by 8" long and welded to barge deck only with 3/8" fillet welds 8. Seafastened with two (2) each fore and aft for a total of four (4) plate dogs, 1" x 6" placed hard against skids and welded to prevent both fore and aft and transverse movement. 9. Seafastened with two (2) each fore and aft for a total of four (4) plate dogs, 1" x 6" placed hard against skid base and welded to prevent both fore and aft and transverse movement.

17 Cascade & Chinook Subsea Project Page Two (2) rubber tired air compressors at 2,500 lbs. each. 11. Four (4) rubber tired portable light plants at 2,000 lbs. each. 10. Stow about on the longitudinal centreline and midships, one (1) forward the 20' container and one (1) aft of the 20' container. 11. Stowed about the deck with two (2) plants forward and two (2) aft. 10. Compressors are set-up with the legs extended and weight on all legs. Seafastened with four (4) per plant, 1/2" wire straps tensioned with turnbuckles. 11. Plants are set-up with the legs extended and weight on all legs. Seafastened with two (2) per plant 3/8" wire straps tensioned with turnbuckles. Barge Departure Draft: Forward: 11' 10" Aft: 12' 0" General: Securing of cargo was completed and found satisfactory for the proposed tow at 2157 hours on August 5, TOWING VESSELS MARINER The M/V MARINER is an all welded steel ocean towing vessel, owned and operated by Crowley Marine Services, Inc., 136' 2" x 36' 6" x 19' 2" and of 7,200 BHp, fitted with a Markey double drum side by side towing winch. Particulars Official Name MARINER Official Number / IMO Number / Call Sign WBM 5096 Owners Operators Flag Home Port Crowley Marine Services, Inc. Crowley Marine Services, Inc. USA San Francisco, California Registered Dimensions Length: 136' 2" Breadth: 36' 6" Depth: 19' 2" Tonnages Gross: 538 ITC 199 GRT Net: 161 ITC 134 NRT

18 Cascade & Chinook Subsea Project Page 17 Built By / At McDermott Shipyard, Inc./Amelia, Louisiana Year Built 1977 Hull Number 228 Intended Service Certificate of Class Hull & Machinery +A1 Towing Services AMS Ocean Towing Vessel Certificate No.: Issued by: American Bureau of Shipping Issued Date: June 19, 2007 Expires: April 30, 2012 Certificate of Documentation Certificate No.: Issued by: United States Coast Guard Issued Date: July 17, 2009 Expires: August 31, 2010 International Load Line Certificate Certificate No.: Issued by: United States Coast Guard Issued Date: July 19, 2007 Expires: April 30, 2012 Radio License Certificate No.: Issued by: FCC Issued Date: August 23, 2007 Expires: October 27, 2017 Master Captain Bruce Fox License No License Type: Master not more than 1,600 tons No. of Crew Seven (7) Propulsion Propulsion Horsepower (Brake) Bollard Pull Bow Thruster Stern Thruster Generators Two (2) E-5, Electric Motive Diesel (EMD) engines driving fixed open wheels through reverse/reduction gears with, three rudders 7,200 BHP 150,000 lbs. ahead / 120,000 lbs. astern None None Two (2) 125 kw Kato generators powered by Caterpillar, Model D3304 diesel engines

19 Cascade & Chinook Subsea Project Page 18 Tow Winch Markey, Model TDSDW 36C, double drum, side by side type towing winch powered by a Detroit Diesel, Model No diesel engine. Main Tow Wire (Port Drum) Length: 2,472' Diameter: 2 1/4" Second Tow Wire (Starboard Drum) Length: 2,400' Diameter: 2 1/4" Bridles Towing Spring Pendant / Fuse Wire Shackles in Use 2 1/2" x 90' studlink chain installed on the barge fo'c'sle One (1) 2 1/4" x 90' studlink chain None 123-ton SWL Safety Towing Type Spare Gear and Equipment Spare sockets, socket-fast and towing shackled maintained onboard. Draft Fore: 16' 11" Aft: 18' 6" Date of Survey August 5, 2009 Capacities Fuel Amount Onboard: 151,440 gallons Lube Oil Amount Onboard: 2,443 gallons As reported to surveyor Fuel Consumption August 5, 2009, 1829 hours Approximately 3,700 gallons per day.

20 Cascade & Chinook Subsea Project Page 19 General Condition As sighted afloat on August 5, 2009, at Texas Terminals, Houston, Texas, the M/V MARINER is considered satisfactory for the proposed tow. TOWING ARRANGEMENTS Particulars Tow Make-Up : Connect main tow wire (port tow wire) to pigtail chain on barge using 123-ton towing shackle and tow ahead. Route : Houston Ship Channel outbound to Galveston Rhodes, thence various courses South by East to Walker Ridge Area, Block 249 as safe navigation permits. Weather Forecast : Forecast is considered favorable. Weather Force 2-3 for the next 3-5 days in extended forecast. DAMAGES None. RECOMMENDATIONS None. SURVEYOR'S COMMENTS 1. A large quantity of the bolt-on clip assemblies for both the manifolds and pump stations, required modifications to the both whole positions and well as the length of the clips due to unforeseen clashes between manifold/pump station structural foundation supports and inaccuracies in dimensional control. All of these modifications were completed by Spitzer Industries and NDE was performed to assure quality of the modifications.

21 Cascade & Chinook Subsea Project Page 20 CONCLUSION Loading, securing and towing arrangements were found to be satisfactory for weather and sea conditions normally to be expected on the tow from Texas Terminals, Houston, Texas to the installation vessel, MSV DEEP BLUE, at Walker Ridge Area, Block 249, US Gulf of Mexico with tow departing Texas Terminals, Houston, Texas at 0800 hours on August 6, Christopher M. Bowman, NAMS-CMS Attending Surveyor CMB/ha/S S31_ :(R) c/s ATTACHMENTS 1. Tow Approval Certificate 2. Photographs Surveyor's Log (Available Upon Request)

22 Cascade & Chinook Subsea Project Page 21 PHOTO CAPTIONS 1. Cascade East Manifold and Pump Station No. 1 staged for loading at Spitzer. 2. Chinook Manifold and Pump Station No. 2 staged for loading at Spitzer. 3. Crowley BARGE 410 moored for loading at Spitzer. 4. D/B BIG JOHN. 5. Lift rigging installed on the manifold. 6. Lift rigging installed on the pump station. 7. D/B BIG JOHN in position for lifting the Cascade East Manifold. 8. Connecting the manifold lift rigging to the D/B BIG JOHN block. 9. Cascade East Manifold lifted for loading. 10. Transport grillage for the manifolds erected on the barge deck. 11. Detail of manifold transport grillage. 12. Transport grillage for the pump stations erected on the barge deck. 13. Detail of pump station transport grillage. 14. Positioning the Cascade East Manifold over the grillage. 15. Cascade East Manifold set onto the transport grillage. 16. D/B BIG JOHN rigged to the Chinook manifold. 17. Chinook manifold lifted for loading. 18. Positioning the Chinook manifold over the grillage. 19. Chinook manifold set onto the transport grillage. 20. Both manifolds loaded onboard the BARGE D/B BIG JOHN rigged to the Pump Station No Pump Station No. 1 lifted for loading. 23. Positioning the Pump Station No. 1 over the grillage. 24. Pump Station No. 1 set onto the transport grillage.

23 Cascade & Chinook Subsea Project Page D/B BIG JOHN rigged to the Pump Station No Pump Station No. 2 lifted for loading. 27. Positioning the Pump Station No. 2 over the grillage. 28. Pump Station No. 2 set onto the transport grillage. 29. Both pump stations loaded onboard the BARGE Transport grillage seafastening details. 31. Transport grillage seafastening details. 32. Transport grillage seafastening details. 33. Transport grillage seafastening details. 34. Transport grillage seafastening details. 35. Transport grillage seafastening details. 36. Manifold/Pump Station seafastenings, bolted clip assemblies. 37. Manifold/Pump Station seafastenings, bolted clip assemblies. 38. Manifold/Pump Station seafastenings, bolted clip assemblies. 39. Manifold/Pump Station seafastenings, bolted clip assemblies. 40. Manifold/Pump Station seafastenings, bolted clip assemblies. 41. Manifold/Pump Station seafastenings, bolted clip assemblies. 42. Manifold/Pump Station seafastenings, bolted clip assemblies. 43. Manifold/Pump Station seafastenings, bolted clip assemblies. 44. Manifold/Pump Station seafastenings, bolted clip assemblies. 45. Manifold/Pump Station seafastenings, bolted clip assemblies. 46. Manifold/Pump Station seafastenings, bolted clip assemblies. 47. BARGE 410 departing Spitzer for Texas Terminals. 48. BARGE 410 moored alongside the quay at Texas Terminals for ballasting. 49. Offshore tug, M/V MARINER.

24 Cascade & Chinook Subsea Project Page Double drum tow winch. 51. Main tow wire, port side drum. 52. Main tow connection, bridle pigtail brought over the vessel stern. 53. Main tow connection, shockline to the bridle pigtail. 54. Barge tow bridle connected to the tug's main tow wire. 55. Manifolds approved for tow. 56. Pump Stations approved for tow.