D — INSTALLATION Total Professeurs Associés D

D - INSTALLATION Total Professeurs Associés

D - INSTALLATION 1. TRANSPORT à SEA-FASTENING 2. LAUNCHING à à à Total Professeurs Associés LAUNCHING BARGE ROCKER ARM POSITIONNING

D - INSTALLATION 3. LIFTING à à LIFTING BARGE MAXIMUM LIFTING WEIGHT 4. FOUNDATIONS MUDMAT à PILE INSTALLATION DRIVEN PILE INSERT PILE à Total Professeurs Associés

Total Professeurs Associés

* UMBILICAL GUDE FRAME RELEASE CABLE ROUTED TO EL - 10 000 WALKWAY REF DRG N° (4311002) EL - 45 000 SPREADER BEAM FOR JACKET LIFTING SLING LAYOUT REF DRG N° 8124 -102 & 103 (4401 -002) * EL - 106 000 SPREADER BEAM PIN RELEASE BACKUP SYSTEM REF DRG N° 8124 -501 EL - 106 000 SPREADER BEAM (4411 -004) FOR JACKET LIFTING SLING LAYOUT REF DRG N° 8124 -101 & 103 (4401 -002) TUGGER BOLLARD ON PILE SLEEVE B 2/B 3 REF DRG N° 4400 -002 *LOWER RUGGING PLATFORM REMOVAL SLINGS REF DRG N° 8124421 (4401 -002) LINE TO SPREADER BEAM TUGGER PADEYE ROUTED DOWN FRAME B TO BARGE DECK REF DRG BEAM PIN RELEASE(4411 -011) N° 8124 -011 & 012 EL - 45 000 SPREADER BACKUP SYSTEM REF DRG N° 8124 -501 (4411 -004 & 4401 -002) UPPER RIGGING PLATFORM REMOVAL SLINGS CONNECTED TO PIN PULLING LINES ROUTE LINE ALONG LEG A 2 AS PER HEEREMAC DRG N° 8124 -411, 8124 -412 & 413 (4417 -002) SSCV POSITIONING LINE FROM LEG A 2 ACROSS TUGGER BOLLARD ROUTED ALONG * * LEG A 2 FRAME 2 DOWN FRAME B 10 BARGE DECK REF DRG N° 8124 -011, 012 1 013 * WORK PLATFORM TO BE RIGGED FOR REMOVAL BY OIC AFTER JACKET INSTALLATION REFER TO DRG N° 4404 -013 UPPER TUGGER BOLLARDS (4 N°) LEGS B 2, B 4 & 2 N° LEG A 2 REF DRG N° 4400 -002 POWER CABLE MESSENGER LINES AND PULLING LINES TO PACKER INFLATION BUNDLES RIGGED B TO J-TUBES J 1 & J 11 REF DRG N° 4310 -001 2 SSCV GAINGWAY LANDING SUPPORT REFER TO DRG N° 4404 -015 SSCV POSITIONING LINES FROM LEGS B 2 & B 4 TUGGER BOLLARDS REF DRG N° 8124 -011 & 012 A 2 * LADDER REST REFER TO DRG N° 4420010 B 4 * FOR BUOYANCY TANK REMOVAL RIGGING REFER TO DRG N° 8124 -401 (4407 -003) A 4 FOR RIP-OUT DIAPHRAGM RIGGING DETAILS (TYP 4 LEGS) REFER TO DRG N° 8124 -431 (4314001) Total Professeurs Associés UMBILICAL HANDLING REELING DRUM SEAFASTENED TO BARGE DECK. UMBILICAL TO BE RUN DOWN SIDE OF JACKET. OUTERMOST TO ALL OTHER RIGGING & SNAKED OUT OVER BARGE DECK REF DRG N° 4423 SLING LAYDOWN PLATFORM 001 ACCESS LADDER OIC TO WINCH DOWN TO LADDER REST PRIOR TO JACKET LIFT REFER TO DRG N° 8126 -101 (4403 -001) WINCH LOWERING GUIDE ROPES & SHACKLES OIC SUPPLY JACKET UPENDING SLINGS REF DRG N° 8124 -104 (4402 -001) * * * TUG POSITIONING LINE FORM LEG A 2 TUGGER BOLLARD REF RIGGING DETAIL 2 ON DRG N° (4417 REF DRG 002) LOCAL TO UPENDING NODE FOR N° 8124 -011 & SLING RELEASE MECHANISM A FRAME UPENONG 013 RIGGING ROUTED TO EL - 11400 WORK PLATFORM REF DRG N° 8124 -201 & 202 (4408 -002)

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Hydraulic Hammers u Work like hydraulic pistons. u Pressurised nitrogen in the upper part reduces stroke and increases strike frequency. u Bearings steer striking head (and reduce friction). u Work in any position (horizontal incl. ). u The striker hits: n n steel anvils (on steel piles) caps (on concrete piles) Total Professeurs Associés

Hydraulic Hammers How they work: u Pendulum configuration: a shield covers part of the frame to guide the hammer u Guided by pile driver Total Professeurs Associés

Suction anchors u What they are Suction chambers are steel pipes with open bases and closed tops. They sink into the ground, initially by gravity, and then by pumping water from the pile. Pumping, here, creates differential pressure on the chamber head and steers it into place, so striking the pile is unnecessary. They are used in deep waters, in particular. u The last decade has seen an increase in the use of suction chambers (suction piles) in marine environments. Total Professeurs Associés

Designing suction anchors Sizing suction chambers involves calculating: u Axial compression strength (bearing capacity), u Axial tear strength, u Lateral stability, u Penetrability (to final position), u Chamber-material strength to withstand applied loads. Total Professeurs Associés

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A suction anchor in Angola Manifold Anchor pile Total Professeurs Associés

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D - INSTALLATION Vers THE FUTURE? Total Professeurs Associés