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UK Continental Shelf – North Rockall Trough Free Subsurface Data
UK Continental Shelf – North Rockall TroughFree Subsurface Data
UK Continental Shelf – North Rockall Trough
The subsurface data is made freely available to support evaluation of the frontier or underexplored UK part of the Rockall Trough which will be offered in the upcoming 29th Offshore Licensing Round (2016). Data will be available as a ‘Workstation-Ready Product’, as well as in software independent formats. The OGA datasets are configured as a number of defined data packages.
Each data package is detailed overleaf and the smaller ones will be available for download via www.ukoilandgasdata.com while the bigger ones will be available for delivery on physical media as discrete, self-contained entities at a cost.
Rockall Trough 2015 OGA survey
Survey summary
Type: 2D long Offset
Broadband: Yes
Broadband type: WesternGeco Obli-Q
Size: 8,896 Km (88 lines)
Acquisition Year: 2015
Completion of Processing: 2016
Record length: 10 seconds
Sample interval: 2ms
Vessels: WesternGeco Vespucci and Tasman
Acquisition Parameters
Streamer length: 10,000m
Streamer Type: Q Marine (solid)
Streamer: Slant 8 - 35m depth
Source volume: Bolt 5085 cu inches
Source pressure: 2000 psi
Source depth: Delta 3 source, 9-6-9m array
Source signature: Calibrated Marine source
Shot interval: 18.75m
Processing:
EDGF Noise Attenuation & Deghosting
Demultiple GSMP modelling
Demultiple DWD modelling
GSMP & DWD Simultaneous-subtraction
Radon Demultiple
PRIMAL Demultiple
2km Velocity lines
PSTM 500m auto Velan
Final migration preparation
Final KPreSTM migration
Post Migration Radon
Residual Normal MoveOut – 50m
Final PSTM stacking
Post Stack Filter/ Scaling
Deliverables
Field data (SEG-D), Navigation (P1/11), Acquisition report, Observer’s Logs
Seismic Pre-stack: Raw De-Ghosted (SEG-Y), Navigation (P1/11), Acquisition report, Raw Pre-stack Time Migrated Gathers (SEG-Y), Final Pre-stack Time Migrated Gathers (SEG-Y)
Seismic Post-stack: Raw Full Offset Stack (SEG-Y), Raw Angle Stacks x4 (SEG-Y), Final Full Offset Stack (SEG-Y), Final Angle Stacks x4 (SEG-Y), Navigation (P1/11), Velocity (Mig/Stack, SEG-Y), Acquisition reports, Processing reports
Gravity and Magnetics:
2015 newly acquired 10,237 Km gravity data - 7,428 Km magnetic data - gridded surfaces and interpreted maps
BGS legacy Gravity and Magnetic data
Added Value Products:
Seismic inversion (SEG-Y), Navigation (P1/11) for a composite line
Petroleum Systems modelling
Interpretation of 4 shallow horizons
Workstation Ready Package in Petrel 2014.1 format
Rockall Trough WesternGeco2014 survey
Survey summary
Type: 2D long Offset
Broadband: Yes
Broadband type: WesternGeco Obli-Q
Size: 1,117 Km (13 lines)
Acquisition Year: 2014
Completion of Processing: 2015
Record length: 10 seconds
Sample interval: 2ms
Vessel: Western Spirit
Acquisition Parameters
Streamer length: 10,000m
Streamer Type: Q Marine (solid)
Streamer: Slant 8 - 35m depth
Source volume: Bolt 5085 cu inches
Source pressure: 2000 psi
Source depth: Delta 3 source, 9-6-9m array
Source signature: Calibrated Marine source
Shot interval: 18.75m
Deliverables
Raw and Post Stack Data SEG-Y
Seismic Pre-stack: Gathers -DGF (SEG-Y), Navigation (P1/90), Acquisition reports, Observer’s reports, Pre-Migrated RTM (SEG-Y)
Seismic Post-stack: Final Migration (SEG-Y), Navigation (P1/90), Velocity (Mig/Stack, SEG-Y), Acquisition reports, Processing report
West of Britain 2D: Lines WB93-0106, -0106A, -0106B, -0106C; WB93-0107C, -0107E; WB93-0109, -0109E, -0109F; WB93-0138A, -0138B
North Minches Infill 2D: MP86WB-01, -01A, -01B
Outer Hebrides Phase 2: OH-47, -65, -66, -81
Total reprocessed legacy data: 18 lines, 1050 Km
Other legacy data: 56 lines, 4400 Km
Post Stack (SEG-Y). The rights to the raw and pre-stack data remain the property of WesternGeco
Well locations and header attributes
Joined Digital Well Logs, Composite Logs (11 wells) and Formation tops
Well paths, VSP / Checkshots, Well reports and Log images as available and released
Legacy data Wells Data
For further information, please contact us at:[email protected]
© Crown copyright, 2016. This data is licensed under the Open Government Licence v3.0. You may use and re-use this data (not including logos) free of charge in any format or medium. You should include the following attribution statement when using this data:
© Crown Copyright. Contains public sector information licensed under the Open Government Licence v3.0.
