ENVIRONMENTAL STATEMENT BARDOLINO DEVELOPMENT

Bardolino Development Environmental Statement
3 PROJECT DESCRIPTION 3-1
3.1 Introduction 3-1
3.2 Alternative Concepts for Field Development 3-1
3.3 Overview of Proposed Project and Schedule 3-4
3.4 Well Engineering 3-7
3.5 Installation and Commissioning of Subsea Infrastructure 3-15
3.6 Modifications and Commissioning of Existing Facilities 3-22
3.7 Production, Utility and Maintenance Operations 3-24
3.8 Well Abandonment and Decommissioning 3-27
4 ENVIRONMENTAL DESCRIPTION 4-1
4.1 Introduction 4-1
4.2 Offshore Physical and Chemical Environment 4-1
4.3 Offshore Conservation Areas 4-11
4.4 Offshore Biological Environment 4-18
4.5 Socio-Economic Environment 4-31
4.6 Summary and Seasonal Environmental Sensitivities 4-38
5 EVALUATION OF POTENTIAL ENVIRONMENTAL IMPACTS 5-1
5.1 Introduction 5-1
5.2 Identification of Potential Environmental Impacts 5-1
5.3 Assessment of Impacts 5-4
5.4 Significant Impacts Assessment Results 5-19
6 ASSESSMENT OF POTENTIALLY SIGNIFICANT IMPACTS 6-1
6.1 Introduction 6-1
6.2 The Physical Presence of the Drilling Rig and Support
Vessels (Including Anchoring of the Drilling Rig) 6-2
6.3 Discharge of Water-based Mud and Cuttings from the
Development Well 6-5
6.4 Atmospheric Emissions from the Bardolino Development 6-9
6.5 Localised Disturbance to the Seabed from Pipeline Installation, Rock
Dump Stabilisation and Mattressing 6-13
6.6 Installation and Physical Presence of the Subsea Structures 6-17
6.7 Noise Arising during Installation Activities 6-19
6.8 Increased Produced Water Discharges from Nelson 6-33
6.9 Accidental Spillage of Hydrocarbons 6-35
April 2008