3509eb1bb335097c52aa30b90a75a1fa
English
c25edeeb492d845621e3db3d997fc7e9
dataset
Data Archive for Seabed Species and Habitats (DASSH)
Data Manager
01752 633102
01752 633291
Marine Biological Association of the UK,
The Laboratory,
Citadel Hill
Plymouth
PL1 2PB
dassh.enquiries@mba.ac.uk
pointOfContact
2019-08-16
MEDIN Discovery metadata standard
2.3.8
urn:ogc:def:crs:EPSG::23090
2006 Shell UK Exploration and Production Ltd Pipeline and umbilical route survey UKCS block 29/7 Curlew C - Curlew FPSO
2006-10-31
publication
2006-10-01
creation
2006-10-31
revision
UK00A_CUR06
http://dassh.ac.uk
Environmental baseline survey conducted 15 and 15/10/2006 along a proposed pipeline and umbilical route between the Curlew FPSO and the proposed Curlew C UC-P1 Well location in UKCS 29/7
Mick Borwell
Oil and Gas UK
Environmental Issues Director
+44 (0)20 7802 2400
+44 (0)20 7802 2401
2nd Floor
232-242 Vauxhall Bridge Road
London
SW1V 1AU
info@oilandgasuk.co.uk
originator
Data Manager Shell UK Exploration and Production Ltd
Shell UK Exploration and Production Limited
Data Manager
1 Altens Farm Road
Nigg
Aberdeen
AB12 3FY
dassh.enquires@mba.ac.uk
custodian
unknown
Database
Marine Environmental Data and Information Network
Habitats and biotopes
Land use
Species distribution
GEMET - INSPIRE themes, version 1.0
2008-01-06
revision
Fish abundance in water bodies
Shellfish abundance and biomass in water bodies
Zoobenthos taxonomic abundance
Habitat extent
Habitat characterisation
Industrial activity
Macroalgae and seagrass taxonomy-related counts
SeaDataNet P021 parameter discovery vocabulary
2009-11-16
revision
Released under DASSH terms and conditions
otherRestrictions
Released under DASSH terms and conditions https://www.dassh.ac.uk/terms-and-conditions
200
English
biota
planningCadastre
biota
Charting Progress 2 Sea Areas
2009-06-18
creation
Irish Sea
-4.1528
4.4824
56.1823
59.0744
2006-10-01
2006-10-31
Data Archive for Seabed Species and Habitats (DASSH)
Data Manager
01752 633102
01752 633291
Marine Biological Association of the UK,
The Laboratory,
Citadel Hill
Plymouth
PL1 2PB
dassh.enquiries@mba.ac.uk
distributor
dataset
Environmental baseline survey conducted 15 and 15/10/2006 along a proposed pipeline and umbilical route between the Curlew FPSO and the proposed Curlew C UCP1 Well location in UKCS 29/7
Platform Type, 31 Research Vessel
Ship Name, MV Sea Explorer
On the 15th and 16th October 2006 Gardline Environmental Ltd carried out an environmental survey along the proposed pipeline and umbilical route between the Curlew FPSO (Floating Production, Storage and Offloading) and the proposed Curlew C UCP1 Well Location, in UKCS 29/7. The survey was conducted aboard the Gardline Shipping survey vessel MV Sea Explorer. The survey was carried out in conjunction with a number of other seismic and environmental surveys (reported elsewhere) in Shell's central North Sea fields. A map of the location of UKCS 29/7 is presented as Figure 1.1. Curlew FPSO, the proposed Curlew UCP1 well site and proposed sampling station locations are shown in Figure 1.2. The proximity of the proposed pipeline route to other well sites in and around UKCS 29/7 is shown as Figure 1.3.
The object of the survey was to recover sediment samples sufficient to allow for an assessment of the current environmental status of the seabed prior to the installation of a subsea pipeline and umbilical connecting the proposed Curlew C UCP1 well site to Curlew FPSO. The scope of work proposed a grab sampling program of 11 stations located every 500m along the pipeline route. Following interpretation of seabed imagery and geophysical data (reported in detail elsewhere) it was agreed in consultation with the on board client representative to sample all 11 stations, with no additional stations deemed necessary.
At each of the stations, three samples were acquired for macrofaunal analysis and one for physical and chemical analyses. Proposed sample locations are summarized in Table 1.1 and Figure 1.2. The actual positions, together with the range and offset from the intended location, are given in surveyor's log sheets presented in Appendix A.
Samples collected for macrofaunal analysis were screened on board through a certified 500 m mesh sieve and then preserved in buffered formalin. Two macrofaunal samples were worked up and a third retained as a spare. A single Day grab sample was collected from every station for quantitative and qualitative physico chemical analyses. Separate sub samples were taken from the Day grab for later determination of sediment particle size, THC (total hydrocarbon concentration), n alkanes, PAH (polyaromatic hydrocarbons), APES (alkylphenolpolyethoxylates), PCB (polychlorinated biphenyls), metals, organic tins and radioactivity. All subsamples were stored frozen until analysed.
Positional information presented in this report is referenced to the International Spheroid ED50 Common Offshore, TM Projection CM 0. Kilometre points (KP) indicate distance along the proposed pipeline route from the porposed pipeline start point. The positions of the existing and proposed installations were as follows,
Existing and Proposed Installation
Easting
Northing
Curlew C FPSO (turret centre)
579336.0m
6288755.0m
Proposed 8" Production Riser Flange (KP0.0)
579436.0m
6288984.0m
Proposed 8" Production Well Flange (KP5.681)
584989.1m
6289047.2m
Proposed Umbilical Termination Assembly (KP0.0)
579428.5m
6288994.3m
Proposed Umbilical Termination Assembly (KP5.721)
584933.4m
6289053.1m
UCP1 (proposed)
584 997.0m
6289025.0m