Breagh Development - RWE.com

Breagh Environmental Statement
Section 2 – Proposed Development
RDUK received processing offers from TGPP and Dimlington. The CATS (working through the
substitute commercial operator – BG) did not respond to the request.
The main uncertainties associated with the Cleeton/Dimlington options related to (i)
throughput capacity, i.e. modifications required to the Dimlington facility in order to achieve
the production rates from Breagh, (ii) hydrate/corrosion inhibitor issues, i.e. delivery of
these production chemicals in the volumes required to the Breagh facility, and (iii) offshore
pipeline pressure protection (it was considered possible that a HIPPS would be required to
protect the Southern North Sea Pipeline System from the high reservoir pressure at Breagh).
In comparison, the options for dealing with these issues were relatively well defined within
the TGPP option. Additionally, TGPP was able to offer up to 400 mmscfd throughput
capacity versus a maximum rate of 200 mmscfd at Dimlington.
The technical uncertainties associated with the Dimlington option coupled with the lower
throughput rates meant that TGPP became a favoured option for both technical and
economic reasons, particularly with one of the key aspects of the bidding process being the
potential for additional equity gas from the Great Breagh Area and third party business.
As such, export to TGPP via landfall at Teesside was the selected option.
Subsequent to the selection of the TGPP export route, various sub-options were examined
to identify the preferred route, pipeline installation method and type of NUI. A breakdown
of each of these sub-options with a brief justification for selection or rejection is given
below.
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