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Top of the line Hi-Res 3D services
Intelligent and versatile low-fold 3D seismic acquisition for the petroleum industry and marine geophysical research
Screen dumps and the underlying data in this document are
confidential and proprietary to WGP Survey Ltd or its partners. This
data shall not be distributed outside your company or used inside your
company for any other purpose than illustrating the product
presented and any required management approvals.
In particular, the images shall not be scanned or loaded to any
PC/workstation that makes the data image capable of manipulation or
transformation back into commercially viable information.
WGP Survey Ltd
• Company
• Services
P-Cable Technology
• Development
• Data examples
OUTLINE
WGP Survey Ltd was established in 2012 and is a Joint Venture company between WGP-Group and Fjorgyn AS.
The purpose of the joint venture is a collaboration and union of WGP’s operational experience and capability, coupled with the technology and know-how that P-Cable 3D Seismic has developed and patented.
Together, the partners shall perform 3D seismic data acquisition surveys utilising the P-Cable™ 3D Seismic System.
COMPANY
Thalassa Holding Ltd P-Cable 3D Seismic AS
WGP Group Fjorgyn AS
WGP Survey Ltd
COMPANY STRUCTURE
WGP Exploration LtdFormally part of the Westland GeoProjects Ltd group which was family founded in 1991, WGP Exploration was incorporated in 2009 and acquired by Thalassa Holdings Ltd on the 16th November 2011.
It is the operational division of the Group with experience of conducting seismic survey operations in the marine environment for major E&P companies.
WGP Energy Services Ltd Established to acquire marine seismic equipment, initially Portable Modular Source Systems ("PMSS™").
Thalassa Holdings LtdListed on the Alternative Investment Market of the London Stock Exchange on 29 July 2008, with symbol "THAL".
Fjorgyn AS Was established as a service company in 2012. The company provide a turn-key solution for services with the P-Cable seismic system. Fjorgyn AS is the active partner in the WGP Survey Ltd Joint Venture.
P-Cable 3D Seismic AS P-Cable 3D Seismic AS was established in 2008. The company is a R&D company with the main focus on developing and commercializing the P-Cable™ seismic system. P-Cable 3D Seismic owns all commercial rights to the P-Cable system.
With 10 years of experience using and acquiring data with the P-Cable 3D Seismic System
+20 years of marine survey knowledge
SERVICES
We provide together with partner companies a full turn-key solution
for our clients.
SUPPLIERS
Image courtesy: Geometrics Inc.
P-CABLE TECHNOLOGY
Recovery rope
P-CABLE TECHNOLOGY
P-Cable patent: NO. Pat. No. 317651 | UK. Pat. No. GB 2401684 B | US. Pat. No. 7,221,620 B2
10 years of acquisition experience using the P-Cable™
2009: Commercial P-Cable2 data on Peon, Statoil (188 km2)
2010: Commercial P-Cable3 available;
manufactured and sold by Geometrics
2012: WGP Survey Ltd
2012: Commercial survey in the Barents Sea
2001: P-Cable concept testing
2004: P-Cable1 prototype (NOC system); patent
2006: P-Cable2 system / 24 streamer digital system
2007: P-Cable2 Peon survey; better resolution than conventional 3D
MILESTONES
P-Cable systems are owned and operated by: IFM-Geomar, University of Tromsø, University of Texas, National Oceanography Center Southampton, P-Cable 3D Seismic AS and WGP Survey Ltd
50 P-CABLE 3D SURVEYS
Ongoing• G3 National Infrastructure• GLANAM• Skattefunn – 4D
Completed• Joint industry project (with
Hydro/Statoil)• EU and NFR projects (HERMES, GANS,
FluidFlow, etc.)• Skattefunn
Total P-Cable related project funding of > 100 MNOK
RESEARCH PUBLICATIONS
• Large gas discovery in the northern North Sea
• First ever commercial size deposit found in such young and shallow sediments
• JIP with Statoil 2006-2007 developing the digital P-Cable2 system
• P-Cable surveys in 2007 and 2009
• 2009 survey is the biggest P-Cable survey so far covering 188 km2
• Acquired by a 24 streamer P-Cable system
Summary| PEON
Data by Statoil
35/2
-1
Intra Reservoir Features| PEON
Conventional 3D 2006 P-Cable 2007
Intra reservoir features
GWC
Data by Statoil
Insert 2007 P-Cable survey showing auto-tracked interpretation based on the high resolution seismic. High level of structural details showing a variety of glacial features (although some acquisition imprints are visible. Notice how the GP3 gas producer (location based on conventional seismic) is located in a deep plough mark feature previously invisible. This illustrates a key benefit of using P-Cable high resolution 3D seismic in the field development.
35/2-1
N
Data by Statoil
P-Cable Overlying Conventional 3D | PEON
2006 3D survey
2007 P-Cable
Close-up view: Top Peon rms amplitude/variance map based on NH06M04_Final_mig.
P-Cable vs. Conventional 3D| PEON
Data by Statoil
2009 P-Cable survey2006 3D survey
Data by Statoil
Close-up view: Top Peon rms amplitude/variance map based on NH06M04_Final_mig.
P-Cable vs. Conventional 3D| PEON
Data by Statoil
2009 P-Cable survey
• Two cubes acquired in the western Barents Sea in 2009 at 300 m water depth by UiT with support from Lundin, cube sizes: 13 and 16 km2
• The sea floor in the area is very rough and covered by iceberg plough marks
• A regional unconformity, URU, separates the glacial deposits from the westward dipping Paleogene sediments below
• Large accumulations of shallow gas and gas hydrates
Shallow Gas & Gas Hydrates| BARENTS SEA
Data by UiT Data by UiT
Data Comparison| CUBE 1 BS
Data by UiT
Data by Lundin
P-Cable 3D
Conventional 3D
Seafloor
Intra Glacial
URU
Top Gas
Shallow Gas Shallow Gas
Shallow Gas & Gas Hydrates| CUBE 1 BS
Data by UiT
• Formed by ice sheet erosion during the Plio-/Plestocene ice age
• Up to 15 meter deep iceberg plough marks
P-CableMultibeam
Seafloor| CUBE 1 BS
Data by UiTData by UiT
-1.20
-0.30
-0.75
• Plough marks from ice sheet erosion
• Two amplitude domains
• Shallow gas
Shallow Gas
Shallow Gas
Shallow High Amplitude Reflections | CUBE 1 BS
Data by UiT
0.09
Amplitude
1.80
0.90
• Plough marks and erosion features mainly SE-NW
• Underlying N-S stratigraphy visible as high amplitude on horizon
• Separating glacial sediments from gently westward dipping Paleogene sediments
Shallow GasURU Horizon| CUBE 1 BS
Data by UiT
0.09
Amplitude
1.80
0.90
AmplitudeHigh
Low
• Cross cutting but dipping
• More obvious cross cut N-S than E-W
• Strange texture
High Amplitude Cross Cutting Horizon| CUBE 1 BS
Data by UiTData by UiT
Data by UiT
Shallow High Amplitude Reflections | CUBE 2 BS
Data by UiT
Data by UiT
Shallow Gas | BARENTS SEA 2012
Data by Spring Energy Norway
Conventional 3D
P-Cable 3D
Current P-Cable system14 GeoEel Solid streamers
Ethernet switches for each streamer
Depth measurement
PBX and triggerfish navigation solution
160 in3 air gun source (6 gun array)
Survey parametersProduction: 7-8 km2
Turn time: 30 min
Frequency: <350 Hz
Survey: 20-200 km2
Operating Zones: All
Min water depth: 10 m
Weather: Force 4
Survey speed: 4.5 knots
KEY FIGURES
Intelligent and
Versatile Acquisition
QC-DATA
SURVEY
DECISION
CLIENT
OPERATIONS
Cross Cable with Junction Boxes
SYSTEM COMPONENTS
GeoEel Solid™ Streamer
SYSTEM COMPONENTS
Air gun array with GPS
SYSTEM COMPONENTS
Positions calculated from stable towing configuration. Positions quality controlled using first break
Independent positioning sensors on streamers tied to paravane and gun GPS pods available
Depth sensors at cross cable and tail of streamer
SYSTEM POSITIONING
Cross cable
• Titanium and Dyneema® construction• Fully interchangeable components• 37 mm overall diameter• Integrated 100 mbs switch, • Depth sensor, 0.1 m accuracy
Digitizer
• 8-channel digitizer• Titanium construction
Solid Streamer• Solid polyurethane construction• 8-channel sections• 12.5 – 100 m length• 44 mm diameter• 1/8 – 2 ms sampling• Non-flammable• No bulge wave• Complete built-in analog self-test• Capacitance and leakage tests• Standard Ethernet communication• Bird coil at each end
Paravane• Solid steel-PEH construction• 20 kN lift @ 37° angle and 4.5 kt*• 4.0 m length• 2.85 m height• Weight 900 kg• Generator and battery box
GPS• Standard seismic GPS systems• 1-3 m accuracy • 0.25 m relative accuracy• 3 antennas on system 2 on vessel
Seismic Source• Air gun array, 120 - 420 cu in• Shot interval 6.25 - 12.5 m• Towed at 50 -70 m distance• Flip flop array if 6.25 m shot interval• 160 cu in @ 6.25 m = 378 cfm
Digital compass
• 0.3 ° accuracy• NCS SubSea provided service
COMPONENT SPEC
Proven technology
Excellent data quality
50 cubes acquired worldwide
Intelligent and versatile acquisition
CONCLUSIONS
WGP Survey Ltd West Street | Kilkhampton | Bude | Cornwall | EX23 9QW | United Kingdom
Tel +44 (0) 1288 322 000 Fax +44 (0) 1288 322 001Email [email protected] | [email protected] Web www.wgp-group.com