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GeoEel Digital Marine Seismic Streamer System Built as joint venture between SubSea, Inc., and Geometrics, Inc.

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Presentation on theme: "GeoEel Digital Marine Seismic Streamer System Built as joint venture between SubSea, Inc., and Geometrics, Inc."— Presentation transcript:

1 GeoEel Digital Marine Seismic Streamer System Built as joint venture between SubSea, Inc., and Geometrics, Inc.

2 GeoEel Suitable for wide range of surveys Oil and Gas, Gas Hydrates High-resolution engineering surveys Large channels, up to 240 Small channels, hand deployed Sub-Bottom profiling Uses any impulsive source Digital Marine Seismic Streamer System

3 GeoEel Less noise, better quality data: Digital Streamer Means Better Quality Data, Less Time Deploying System Comparable In Price To Analog Systems 8 kHz bandwidth 4 ms to 1/16 ms Sampling Means Suitability For More Kinds of Surveys 24-Bit, 110 dB Dynamic Range Digital Marine Seismic Streamer System

4 GeoEel Environmentally Friendly and Easy to Deploy: Light Weight, Easy To Deploy On Small Boats Small Diameter (38 mm, 1.5") Means Easy Deployment by Hand or With Small Winches Easily Shippable, No Special Environmental Requirements, Filled with Inert Silicon Oil Rugged, 1/8" Wall Thickness, Can Be Used As Bay Cable, Transition Zones Digital Marine Seismic Streamer System

5 GeoEel Works with Standard Birds Uses Geometrics CNT-1 PC Controller Separate Windows Display Shots, Gathers, Trigger Timing, Noise, Gun Energy, Tape Status, Alarms Real-Time Brute Stack Multiple Storage Devices Integrates Data from Guns, Nav, Birds Drives Multiple Printers Over 40 installations in operation Digital Marine Seismic Streamer System

6 GeoEel A/D Modules: 8 channels per can, up to 240 channels Expands easily to multiple streamers Communicate by Ethernet, no custom interface Easily expand to more channels Component parts

7 GeoEel Component parts Active sections: 8 channels/section 25, 12.5, 6.25, 3.125, custom groups 12.5m group: 100m section, 16 hydrophones per group 6.25m group: 50m section, 8 hydrophones per group 3.125m group: 25m section, 4 hydrophones per group

8 GeoEel power/interface box: Trigger Ethernet to computer Aux channels Interface to birds Capacitance, leakage testing Interface to streamer Component parts

9 GeoEel Laptop or Desktop Computer Anything with industry-standard Ethernet Consider storage solutions DVD or RAID’s appropriate Component parts

10 GeoEel On-Deck Configuration: Personal Computer Printer Data storage Monitor Ethernet card(s) Ethernet cable to PS Streamer Power Supply On-Deck Aux Channels Rugged Deck cable to winch Optional Repeaters Digital Marine Seismic Streamer System

11 GeoEel Digital Marine Seismic Streamer System

12 GeoEel Active Section Construction Active Sections are constructed from Polyurathane tubing Hydrophones Two Vectran strain members Polypropylene spacers Polypropylene clamp spacers Polypropylene spherical floatation Silicone oil Power, signal and digital connections Bird Coils

13 GeoEel Active Section Construction Built to facilitate easy handling Narrow diameter weighs 1.2 kg/m Interior floatation counteracts relatively heavy silicone oil

14 GeoEel Active Section Construction Spacers used to stop the streamer from collapsing and are positioned every 1.25m The spacers are pinned to the Vectran to ensure no slippage

15 GeoEel Active Section Construction Each hydrophone group has a special handling spacer and clamp to ease hand retrieval and limit skin stretch

16 GeoEel Active Section Construction Floatation is added to the interior of the streamer to maintain neutral buoyancy in such a narrow diameter filled with relatively heavy silicone oil

17 GeoEel Active Section Construction Floatation is captured in tubular netting to restrict movement and eliminate noise Nylon tie wraps are used to connect the floatation to the Vectran to ensure they ‘move’ under load

18 GeoEel Active Section Construction Bird spacers are affixed with epoxy and pins so they won’t slip

19 GeoEel Active Section Construction Service loops are left in both the wiring and the floatation netting to ensure that the internal elements flex without damage under load.

20 GeoEel Active Section Construction Thicker bird collars are available so you can use Digicourse and other standard birds

21 GeoEel Software Example Display

22 GeoEel Software Features Fault Tolerant No Data Loss Even If All Tape Drives Fail Maintains Data Ordering for Processing Optimized for Speed Data can be collected on multiple inputs Communicates with other devices navigation birds, compasses downhole encoders

23 GeoEel Software Features Separate, Sizeable Windows Shot Multiple Simultaneous Gathers Source Energy, Shot Timing Noise Window User definable alarms with adjustable thresholds Drives multiple plotters for various displays

24 GeoEel Typical initial screen showing shot, gather, spectra, observers log, noise and trigger windows

25 GeoEel Visual and audiable alarms can be operator selected

26 GeoEel Streamer noise, calibrated in micro bars

27 GeoEel A-D Converter Module (ADCM): Number of channels per active section: 8 (plus 1 optional depth sensor channel) Sample Rates: 1/16 ms, 1/8 ms, 1/4 ms, 1/2 ms, 1 ms, 2 ms, 4 ms Bandwidth: 1Hz to 8kHz Programmable Gain: 0 dB, 12dB, 24 dB, 36 dB, 42 dB Maximum Input Range: ±2.25V Resolution: 24 Bits including sign Dynamic Range: 120db 1ms QC Tests: Leakage and capacitance of hydrophone elements, pulse, oscillator, timing. Power Consumption: Approximately 100 mA at 48 VDC Calibration Oscillator: 10 Hz to 2 kHz, 1 µvolt to 100 mv AC RMS Dimensions: 38 mm diameter x 22cm long (1.75" diameter by 8.5") Weight: 900 grams (2.0 lbs) Packaging Material: Titanium Connectors: Waterproof high density stainless steel, 41 pin Digital Marine Seismic Streamer System Detailed Specifications:

28 GeoEel Detailed Specifications: Digital Marine Seismic Streamer System Hydrophone Array: Active Section: Number of Channels: 8 maximum per section Number of Sections: Dependent on array, 12 sections for 96 channel Hydrophones per group: User option, 16 typical at 12.5m Hydrophone Type: Benthos RDA Geopoint Depth sensor (optional): ± 2.5 percent accuracy, 0-50 meters Jacket Material: Clear polyurethane, 70 Duro, 3.18mm (1/8") wall thickness Outer Diameter: 38 mm (1.5 inches) Ballast Fluid: Inert, non-polluting silicon oil, 100 cSt Weight: ~1.2 kg/m Break Strength: 1250 kg (2750 lbs) Maximum Tow Speed: ~8 knots recording, ~10 knots steaming, depending on sea state Winch Drum Minimum Diameter: 1.5m

29 GeoEel Stretch Section: Length: 10, 25 or 50 meters standard Outer Diameter: 38mm, 1.5”. Compass/Bird Coil: IO Model 587, mounted at center of section Jacket Material: Clear polyurethane, 70 Duro, 3.18mm (1/8") wall Outer Diameter: 35 mm (1.375 inches) Ballast Fluid: Inert, non-polluting silicon oil, 100 cSt Weight: ~ 45 Kg for 50 meter section Break strength: 1250 kg (2750 lbs) Tow Cable: Electrical conductors: 10 twisted pair shielded, 22 awg Weight: Dependent on length, ~ 25 kg (55 lbs) for 50 meters Strain member: Kevlar Break strength 1250 kg (2750 lbs) Digital Marine Seismic Streamer System Detailed Specifications:

30 GeoEel Deck Interface and Power Supply (DIPS): Power Requirements: 115/230 VAC, 3/1.5 Amp max, 50/60 Hz Voltage to Streamer: 36 – 72 VDC I/O Communications: 100Base TX Fast Ethernet, IEEE compliant Trigger Requirements: Isolated Input, Positive or Negative TTL, software selectable Testing: Continuous monitoring of cable condition for leakage Continuous monitoring of Ethernet for faults and collisions Displays: LCD Display with touch screen LED's for trigger and Ethernet status Optional Auxiliary Inputs: 8, Analog channels with 24 bit resolution Ethernet Connection: RJ-45 Trigger Connection: BNC Detailed Specifications: Digital Marine Seismic Streamer System

31 GeoEel Controller: PC based running Geometrics CNT-1 software. Multiple shot and gather windows waterfall and bar graph noise displays windows for shot timing gun energy brute stack tape status spectral analysis Sure-save software protects data loss even with total storage device failure Files automatically kept in sequential order. Detailed Specifications: Digital Marine Seismic Streamer System Auto-switching between storage device dual tape writing Supports multiple printers Full log kept of all parameter changes. Integrates navigation, gun, bird parameters into SEG-D, SEG-Y or SEG-2 header. PC speed and storage must be adequate for the number of channels and recording parameters

32 GeoEel Only digital seismic streamer with 8 kHz bandwidth Only digital streamer with <40mm OD Only digital streamer that uses inexpensive and reliable Ethernet in the streamer Only digital streamer filled with environmentally-friendly fluid Summary: Digital Marine Seismic Streamer System

33 GeoEel Customer Surveys California State University Long Beach White Squall Survey – San Francisco Bay Gulf of Mexico, Entrepid Survey Geological Survey of Japan, Season 1 Geological Survey of Japan, Season 2 Fugro California Survey

34 GeoEel CSULB Sea Trials

35 GeoEel CSULB Sea Trials Deploying cable

36 GeoEel CSULB Sea Trials Instrument room

37 GeoEel CSULB Sea Trials Handling system on deck

38 GeoEel CSULB Sea Trials

39 GeoEel CSULB Sea Trials

40 GeoEel White Squall Survey

41 GeoEel White Squall Survey

42 GeoEel White Squall Survey

43 GeoEel White Squall Survey

44 GeoEel White Squall Survey

45 GeoEel White Squall Survey

46 GeoEel Gulf of Mexico Entrepid Survey

47 GeoEel Gulf of Mexico Entrepid Survey

48 GeoEel Gulf of Mexico Entrepid Survey

49 GeoEel Gulf of Mexico Entrepid Survey

50 GeoEel Gulf of Mexico Entrepid Survey

51 GeoEel Gulf of Mexico Entrepid Survey

52 GeoEel Geological Survey of Japan

53 GeoEel Geological Survey of Japan

54 GeoEel Geological Survey of Japan

55 GeoEel Geological Survey of Japan

56 GeoEel Geological Survey of Japan

57 GeoEel GSJ SECOND SEASON Goals Image the Japan trench Test new Kendon ethernet switches Test new OYO Geospace bird design Evaluate overall system performance

58 GeoEel Gun and trolley

59 GeoEel Winch going into place

60 GeoEel Geometrics and Sercel Winches

61 GeoEel Geometrics winch installed

62 GeoEel GSJ Second Season

63 GeoEel GSJ Second Season

64 GeoEel GSJ Second Season

65 GeoEel GSJ Second Season

66 GeoEel GSJ Second Season

67 GeoEel Brute Stack of Japan Trench

68 GeoEel Brute Stack of Basin Near Japan Trench

69 GeoEel Fugro Southern California 48 channels 6.25 m interval 80 m offset Fault detection for LNG terminal Contractor: Fugro

70 GeoEel Fugro Southern California

71 GeoEel Fugro Southern California

72 GeoEel Pull Tests

73 GeoEel Bend Radius Tests

74 GeoEel Oblique angle pull Tests

75 GeoEel Vectran Stretch and Relaxation Tests

76 GeoEel Wing angle tests

77 GeoEel Noise Tests

78 GeoEel Noise Tests

79 GeoEel Noise Tests

80 GeoEel Noise Tests

81 GeoEel Noise Tests

82 GeoEel Noise Tests

83 GeoEel Noise Tests

84 GeoEel Noise Tests

85 GeoEel Noise Tests

86 GeoEel Noise Tests

87 GeoEel Noise Tests

88 GeoEel NX/RX/R Marine Customers Geophysics Gpr. Int., Canada Kawasaki Geological Engineering, Japan National Institute of Water and Atmospheric Research, NZ Northwest Geophysical Services Ocean Research Institute of Tokyo University SOGO Geophysical Exploration U.S. Geological Survey University of Aarhus, Denmark Gardline Surveys, UK Gulf Ocean Services, Inc. Northern Geophysical of America Alfred Wegener Inst. for Polar and Marine Research Bedford Institute of Oceanography China Offshore Geophysical Company (Bohai) ENEA ‑ Ente per le Nuove Technologie, Italy Geological Survey of Canada University of Kiel, Germany Pukyong University NSA, University of Tokyo NDRIP Japan Geological Survey of Japan California State University Long Beach Fugro, California Mission Exploration


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