Presentation on theme: "Top of the line Hi-Res 3D services"— Presentation transcript:
1Top of the line Hi-Res 3D services Intelligent and versatile low-fold 3D seismic acquisitionfor the petroleum industry and marine geophysical research
2Screen 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.
3OUTLINE WGP Survey Ltd Company Services P-Cable Technology Development Data examples
4COMPANYWGP 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.
5COMPANY STRUCTURE Thalassa Holding Ltd P-Cable 3D Seismic AS WGP Group Fjorgyn ASWGP Survey Ltd
6WGP Exploration Ltd Formally 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 Ltd Listed on the Alternative Investment Market of the London Stock Exchange on 29 July 2008, with symbol "THAL".
7Fjorgyn ASWas established as a service company in 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 ASP-Cable 3D Seismic AS was established in 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.
8SERVICESWith 10 years of experience using and acquiring data with the P-Cable 3D Seismic System + 20 years of marine survey knowledgeWe provide together with partner companies a full turn-key solution for our clients.
10P-CABLE TECHNOLOGYImage courtesy: Geometrics Inc.
11P-CABLE TECHNOLOGYRecovery ropeThis is a schematic of the system layout. We use an indirect tow method, in which most of the tension is taken by a rope or cable. The signal cable carries very little load. Normal towing depth ranges from 1 – 2.5m, depending on the goals of the survey.P-Cable patent: NO. Pat. No | UK. Pat. No. GB B | US. Pat. No. 7,221,620 B2
1210 years of acquisition experience using the P-Cable™ MILESTONES2001: P-Cable concept testing2004: P-Cable1 prototype (NOC system); patent2006: P-Cable2 system / 24 streamer digital system2007: P-Cable2 Peon survey; better resolution than conventional 3D2009: Commercial P-Cable2 data on Peon, Statoil (188 km2)2010: Commercial P-Cable3 available; manufactured and sold by Geometrics2012: WGP Survey Ltd2012: Commercial survey in the Barents Sea10 years of acquisition experience using the P-Cable™
1350 P-CABLE 3D SURVEYSP-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
14RESEARCH PUBLICATIONS OngoingG3 National InfrastructureGLANAMSkattefunn – 4DCompletedJoint industry project (with Hydro/Statoil)EU and NFR projects (HERMES, GANS, FluidFlow, etc.)SkattefunnTotal P-Cable related projectfunding of > 100 MNOK
15Summary| PEON Large gas discovery in the northern North Sea First ever commercial size deposit found in such young and shallow sedimentsJIP with Statoil developing the digital P-Cable2 systemP-Cable surveys in 2007 and 20092009 survey is the biggest P-Cable survey so far covering 188 km2Acquired by a 24 streamer P-Cable systemData by Statoil
16Intra reservoir features Intra Reservoir Features| PEON35/2-1Intra reservoir featuresGWCConventional 3D 2006P-Cable 2007Data by Statoil
17P-Cable Overlying Conventional 3D | PEON 35/2-12006 3D surveyNData by StatoilInsert 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.17
18P-Cable vs. Conventional 3D| PEON 2009 P-Cable survey2006 3D surveyData by StatoilClose-up view: Top Peon rms amplitude/variance map based on NH06M04_Final_mig.Data by Statoil18
19P-Cable vs. Conventional 3D| PEON 2009 P-Cable surveyClose-up view: Top Peon rms amplitude/variance map based on NH06M04_Final_mig.Data by Statoil19
20Shallow Gas & Gas Hydrates| BARENTS SEA 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 km2The sea floor in the area is very rough and covered by iceberg plough marksA regional unconformity, URU, separates the glacial deposits from the westward dipping Paleogene sediments belowLarge accumulations of shallow gas and gas hydratesData by UiTData by UiT
21Data Comparison| CUBE 1 BS P-Cable 3DData by UiTConventional 3DData by Lundin
22Shallow Gas & Gas Hydrates| CUBE 1 BS SeafloorIntra GlacialURUTop GasShallow GasData by UiT
23Seafloor| CUBE 1 BSFormed by ice sheet erosion during the Plio- /Plestocene ice ageUp to 15 meter deep iceberg plough marksMultibeamP-CableData by UiTData by UiT
24Shallow High Amplitude Reflections | CUBE 1 BS Shallow Gas-1.20-0.75-0.30Plough marks from ice sheet erosionTwo amplitude domainsShallow gasShallow GasData by UiT
25URU Horizon| CUBE 1 BS Plough marks and erosion features mainly SE-NW Shallow GasAmplitude1.800.900.09Plough marks and erosion features mainly SE-NWUnderlying N-S stratigraphy visible as high amplitude on horizonSeparating glacial sediments from gently westward dipping Paleogene sedimentsData by UiT
26High Amplitude Cross Cutting Horizon| CUBE 1 BS 1.80Cross cutting but dippingMore obvious cross cut N-S than E-WStrange textureLow0.90Data by UiT0.09Data by UiTData by UiT
27Shallow High Amplitude Reflections | CUBE 2 BS Data by UiTData by UiT
28Shallow Gas | BARENTS SEA 2012 Conventional 3DP-Cable 3DData by Spring Energy Norway
29KEY FIGURES Current P-Cable system Survey parameters 14 GeoEel Solid streamersEthernet switches for each streamerDepth measurementPBX and triggerfish navigation solution160 in3 air gun source (6 gun array)Survey parametersProduction: 7-8 km2Turn time: 30 minFrequency: <350 HzSurvey: km2Operating Zones: AllMin water depth: 10 mWeather: Force 4Survey speed: 4.5 knots
30OPERATIONS Intelligent and Versatile Acquisition QC-DATA SURVEY DECISIONCLIENT
31Cross Cable with Junction Boxes SYSTEM COMPONENTSCross Cable with Junction Boxes
32GeoEel Solid™ Streamer SYSTEM COMPONENTSGeoEel Solid™ Streamerand hydrophone section.
34SYSTEM POSITIONING and hydrophone section. Positions calculated from stable towing configuration. Positions quality controlled using first breakIndependent positioning sensors on streamers tied to paravane and gun GPS pods availableDepth sensors at cross cable and tail of streamerand hydrophone section.
35COMPONENT SPECCross cableTitanium and Dyneema® constructionFully interchangeable components37 mm overall diameterIntegrated 100 mbs switch,Depth sensor, 0.1 m accuracyParavaneSolid steel-PEH construction20 kN 37° angle and 4.5 kt*4.0 m length2.85 m heightWeight 900 kgGenerator and battery boxSolid StreamerSolid polyurethane construction8-channel sections12.5 – 100 m length44 mm diameter1/8 – 2 ms samplingNon-flammableNo bulge waveComplete built-in analog self-testCapacitance and leakage testsStandard Ethernet communicationBird coil at each endGPSStandard seismic GPS systems1-3 m accuracy0.25 m relative accuracy3 antennas on system 2 on vesselSeismic SourceAir gun array, cu inShot interval mTowed at m distanceFlip flop array if 6.25 m shot interval160 cu 6.25 m = 378 cfmThe cross-cable, which is the unique piece of the system, and the origin of the name – the “P” in P-Cable stands for “perpendicular” -- consists of a series of junction boxes mounted on a 1” Dyneema rope. The junction boxes are connected by digital and power wires encased in a polyurethane tube that is wrapped around the rope in a helix. The helical wrapping serves the secondary purpose of vortex shedding, eliminating the need for fairing on the cross cable.Digitizer8-channel digitizerTitanium constructionDigital compass0.3 ° accuracyNCS SubSea provided service
36CONCLUSIONS Proven technology Excellent data quality 50 cubes acquired worldwideIntelligent and versatile acquisition
37WGP Survey LtdWest Street | Kilkhampton | Bude | Cornwall | EX23 9QW | United KingdomTel +44 (0) Fax (0)| Web