ENVIRONMENTAL STATEMENT BARDOLINO DEVELOPMENT

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Bardolino Development Environmental Statement backfill is not sufficient to prevent upheaval buckling, the quantity of rock required should be less than 10,000 t (Figure 3.7). Figure 3.7: Open trench and rock dump of the 6” and 3” piggyback pipelines The operations will be monitored by a post-lay inspection using a Remotely Operated Vehicle (ROV). The subsequent status of the line, including any free spans, will be monitored in accordance with the Shell inspection and maintenance plans. 3.5.4 Manifold, production tree and valve skid installation A new production manifold will be installed close to the Bardolino tree (Figure 3.8) by a single lift from a DP vessel. The manifold will be approximately 91 t and approximately 9 m x 6 m x 4 m in dimension. The manifold will be fabricated within a piled, slab-sided protection structure, designed to withstand fishing interaction loads in addition to environmental and dropped object loads. The manifold protection structure will be secured to the seabed using 4 hammer-driven piles, one at each corner of the structure. The piles will be 610 mm outside diameter and approximately 20 m long. A new Vetco standard frame production tree at the Bardolino well will be installed following the completion of drilling. The tree will be encased in a “cocoon” type protective structure which is designed to be ‘fishing friendly’ (i.e. if a fishing vessel is arrested the gear can be retrieved without snagging the tree equipment, thus avoiding damage to the gear or the seabed asset), and will be constructed from CRA (Figure 3.9). April 2008 Page 3-19
Bardolino Development Environmental Statement Figure 3.8: Example of manifold to be installed at Bardolino Figure 3.9: Illustration of a production tree fitted with a cocoon protective structure Cocoon production tree Production tree Seabed Page 3-20 April 2008
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13 th March 2008 Dear Sir or Madam,
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To: Paul Wood Shell U.K Limited, Se
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What risks to marine mammals do pil
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Noise propagation modelling. Noise
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If, for any reason, piling operatio
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APPPENDIX 1 MARINE MAMMAL RECORDING
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ENVIRONMENTAL STATEMENT BARDOLINO DEVELOPMENT

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