ENVIRONMENTAL STATEMENT BARDOLINO DEVELOPMENT

Bardolino Development Environmental Statement
Table 6.4: Comparison of the total emissions from the Bardolino development well with
emissions from UKCS well testing and UKCS offshore activities (All values are
thousands of tonnes)
CO2 CO NOx N20 SO2 CH4 VOC
Total emissions from proposed clean-up 7.355 0.038 0.008 0.000 0.000 0.065 0.052
Emissions from UKCS Well Testing
Total emissions from UKCS well testing 1 120.909 0.502 0.10 0.003 0.001 1.401 0.612
Emissions from proposed well cleanup
(as % of UK total)
Emissions from UKCS Offshore Exploration and Production Activities
6.08 7.57 8 0 0 4.64 8.50
Total emissions from UKCS offshore
exploration and production 1 18,333.62 28.57 59.78 1.22 2.94 41.24 48.67
Emissions from proposed well cleanup
(as % of UK total)
0.04 0.13 0.01 0 0 0.16 0.11
Notes: 1. Total emissions for offshore activities includes emissions arising from; diesel, gas and fuel oil
consumption, flaring, venting, direct process emissions, oil loading and fugitive emissions. This includes emissions
from Production and Mobile drilling rigs. The SCOPEC data does not include emissions produced by support vessels
or helicopters. Source: LearnIT, 2006
6.4.2 Impact on sensitive receptors and proposed or designated sites
There are no sensitive receptors or proposed or designated sites that would be impacted by
these emissions. The contribution of these emissions to global processes such as global
warming and acid deposition is discussed in Section 6.4.3.
In the open conditions that prevail offshore, the atmospheric emissions generated during well
clean-up and testing would be readily dispersed. This would ensure that, outside the
immediate vicinity of the flare tip, all released gases would only be present in low
concentrations.
6.4.3 Contribution to transboundary, cumulative or global impacts
As Bardolino is located approximately 40 km from the UK/Norwegian median line, it is
appropriate to consider the potential for trans-boundary transport of atmospheric
contaminants.
Wind conditions experienced offshore in the central North Sea are variable both in strength
and direction, but it is likely that any air emissions at the Bardolino site will be quickly
dispersed. Under these offshore conditions, the small amount of air emissions that would be
produced is unlikely to be sufficient to have any measurable trans-boundary effect. The
short-term, transient nature of the drilling and pipeline installation activities will minimise
power generation emissions to air. The small volumes of resulting exhaust gases are
expected to disperse rapidly in the offshore atmospheric environment.
The potential cumulative effects associated with atmospheric emissions produced by the
drilling operations, pipeline and umbilical activities and well clean-up / testing operations
include global warming (greenhouse gases), acidification (acid rain) and local air pollution.
The temporary increase in emissions from the proposed operations in relation to existing
operations in the area will not result in a significant additive effect when considering the total
annual offshore emission from the UKCS. Table 6.5 indicates that emissions of the identified
pollutants would be equivalent to less than 1% of total annual offshore UKCS oil and gas
atmospheric emissions compared with a 2004 baseline, the latest year for which published
data are available. Table 6.5 also shows that the emission of gases, including carbon dioxide
which contribute to global warming, represent a very small proportion (