Transcript
System Four Land Seismic Recording System The System Four® land seismic recording system is designed to maximize seismic crew productivity and enable full-wave imaging. System Four, which supports both full-wave VectorSeis® and analog geophone acquisition, serves as the platform of choice for robust, efficient, user-friendly data acquisition in all land and transition zone environments Geophysicists can now design seismic surveys with maximum flexibility, ensuring that field operations can be conducted at peak efficiency and that the acquired seismic data delivers improved subsurface image quality. Improved Productivity System Four has been engineered to maximize operational efficiency, delivering more uptime and shots per day than any other recording system available in the industry. From the simple user interface to the postacquisition Seismic Data Processor (SDP), System Four has the channel capacity and features required to record today’s and tomorrow’s survey designs. Proprietary features built into the hardware and software of the system enable geophysical contractors to: • • • • • • • • •
Significantly reduce downtime due to static and lightning Ensure data integrity using automated quality control software Quickly pinpoint spread faults with state-of-the art telemetry, power delivery and user interface capabilities Perform full spread tests in the field for rapid line trouble shooting Continue data recording through most cable faults and power failures using data path redundancy options Eliminate downtime due to output media failures using high-capacity data buffering Devote more time to data acquisition operations by decoupling the data handling chores from acquisition Overcome field obstacles with the widest range of spread layout configurations Maximize the number of shots per day with the tight integration of I/O’s source controller technology
Crossline Unit (XLU), Battery Booster Unit (BBU) and Analog input line Unit (A-Unit)
Enhanced Imaging System Four enables scalable, high channel count operations and multi-component data acquisition, delivering improved spatial sampling, broader bandwidth data and improved image quality compared to competing recording systems. With System Four, oil & gas companies can: •
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Acquire both analog geophone and digital VectorSeis data, simultaneously and in any configuration, even on the same survey Design surveys with full azimuth and offset coverage and dense spatial sampling
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
Operator Computer Interface
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Central System Components Technical Specifications and Features Central Recording System (CRS) Operating temperature +5° C to +40° C Storage temperature -40° C to + 75° C Humidity 20 to 80 % non-condensing Power 220 - 240 Vac, 50 / 60 Hz Less than 700 W with standard equipment
Operator Computer Interface Multi-processor PC CD-R/RW, optional DVD-R/RW Optional internal 8mm Exabyte Mammoth tape drive 10 / 100 Base T Ethernet Ultra SCSI Raid disk array subsystem with minimum 180 Gbyte storage Dual DVI 4X AGP port (optionally up to 2 additional display ports) Ultra SCSI tape and plotter interface ports Microsoft Windows 2000 Professional or higher Field Electronics Interface (FEI) / Seismic Data Processor (SDP) High-performance floating-point processors 1000 Base T Ethernet port Fiber channel port High performance memory (sized depending on maximum stations and record length) 3,000 channel base capacity Upgradeable to 10,000 and 20,000 channel configurations with simple board additions; 30,000 channel capacity is available with more extensive changes Truck Network Switch Advanced network packet telemetry Interfaces central system components and truck input panel Truck Input Panel 4 crossline ports Each port capable of 6,000 channels at 2ms sample rate Multiple panels available ACTI (Auxiliary Channel Telemetry Interface) 6 analog auxiliary channels (24 bit)
Third Party Ancillary Equipment Environmental and power specifications per third party vendor data sheets
Vib Pro™ Source Controller Supports Vibroseis operations and dynamite operations with a Shot Pro decoder Shot Pro™ II Source Controller Supports dynamite and air gun operations Tape Drives Dual LTO Tape Drives Other SCSI tape drives on special request, subject to availability Monitors (3 standard, 4th optional) Standard: 20” Flat Screen, 1600 x 1200 dpi Optional: 18” Flat Screen, 1600 x 1200 dpi Printer Standard: HP Inkjet series Optional: HP LaserJet series Plotter ISYS V12
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
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General System Features and Specifications Time Standard
1 ppm
SPS File Support
Spread, script and map generation SPS file import SPS file export SPS Center of Gravity (COG) export
Special Source Operations
Integrated Pelton source controller software resident on System Four Source driven acquisition Floating-point summing Noise edit with burst mode Vertical stack Diversity stack Correlation before or after stack (zero-phase FFT) Alternating fleets Enhanced sweep package • Interleaved fleets • Source driven interleave • Cascaded / Phase-rotated • Stored Pilot • Slip Sweep
Report Export Format
Microsoft Excel (included)
Source Aware QC
User-defined thresholds automatically alert Operator of out-of-specification conditions before the shot occurs Records actual sensor and source quality attribute data to shot report Quickly identifies available shot points based on current spread status
Remote Unit Monitoring
Color-coded icons in schematic view represent source and receiver status Embedded spreadsheets with advanced sorting and filtering options: • Unit status o Power state o Telemetry status o Software revision o Serial number • Unit unsolicited messages • Instrument test results • Receiver test results
Seismic Data QC
Screen and paper output displays: • Phase and power spectrums • Time series trace displays o Digital AGC o Digital band-pass filtering o True amplitude (defloat) o TAR (True Amplitude Recovery) • Vector Filtering o In-field QC function on digital VectorSeis p-wave data • Wireline similarity data analysis
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
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Ground System Components Technical Specifications and Features A-Unit
Analog input line unit Supports up to 3 analog receivers (channels) Built-in processor for performing instrument and receiver tests in unit SmartNet redundant buffered data telemetry (additional equipment may be required) • Supports non real-time data transmission for increased channel capacity • Re-routing over redundant connections in case of cable faults SmartPower power handling system (additional equipment may be required) • Redundant power capability • Power switching for line power troubleshooting Telemetry data rate at 2ms real-time • 319 channels at 80 m or less receiver spacing, each side of XLU • 477 channels at 55 m or less receiver spacing, each side of XLU • 623 channels at 33 m or less receiver spacing, each side of XLU
D-Unit
Digital input line unit Supports up to 3 VectorSeis receivers (3 components per VectorSeis receiver; 3 stations, 9 channels total); see VectorSeis Receiver data sheet (P/N 1018-040000A) Built-in processor for evaluating D-Unit and VectorSeis receiver tests SmartNet redundant buffered data telemetry (additional equipment may be required) • Supports non real-time data transmission for increased station capacity • Re-routing over redundant connections in case of cable faults SmartPower power handling system (additional equipment may be required) • Redundant power capability • Power switching for line power troubleshooting Telemetry data rate at 2ms real-time • 213 stations at 80 m or less receiver spacing, each side of XLU • 318 stations at 55 m or less receiver spacing, each side of XLU • 415 stations at 33 m or less receiver spacing, each side of XLU
XLU
Digital crossline switch Advanced network packet telemetry Ports • 3 each - crossline • 2 each - D-Unit or A-Unit line Crossline telemetry capacity of 6,000 channels at 2 ms real-time Quick-couple mid-span connector Fiber optic crossline cable up to 15 km
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
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Ground System Components (continued) Technical Specifications and Features BBU
Line Cable
Crossline Cable
Battery Booster Unit 12 Volt nominal input +/- 24 Volt to earth nominal line output Powers 36 VectorSeis receivers using D-Units up to 33 m intervals, 24 VectorSeis receivers up to 55 m intervals, 18 VectorSeis receivers up to 80 m intervals Powers 48 analog receivers using A-Units up to 33m intervals, 42 analog receivers up to 55m intervals, 30 analog receivers up to 80 m intervals SmartPower redundancy and switching (additional equipment may be required) Dual hot-swappable power inputs Quick-couple mid-span connector Serial port for connecting HDU Line Cable (typical configuration, other options available) Integral twisted pair line cable with hermaphroditic Dynacon quick-couple, mid-span connectors Bi-directional power and telemetry Reversible installation, no required cable orientation Aramid core, gum filled Diameter: OD 8.89 mm (0.35 in) Break strength: 204 kg (450 lb) Weight: 8.0 kg (17.64 lb) per 100 m Crossline Cable 9 / 125 micron ruggedized, military grade, harsh environment fiber optic cable Diameter: 5.5 mm Break strength: 181 kg (400 lb) Weight: 2.8 kg (6.17 lb) per 100 m
Environmental Specifications Operating Temperature
- 40° C to + 75° C
Humidity
0 to 100%
Operating Altitude
Up to + 5,500 m
Water Depth Rating
15 m
Support Equipment HDU
Hand-held Deployment Unit Pocket PC based Performs full instrument tests for both A-Units and D-Units, tests of cable telemetry and power, and receiver tests via serial port on BBU Weight: 1 kg (2.20 lb), including splash-proof case and cable
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
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Analog Performance Specifications A/D Converter
24-bit (23 + sign)
Preamplifier Fixed Gain Levels
G0, G2, G4, G6
Sample Rate
½ ms, 1 ms, 2 ms, or 4 ms
Dynamic Range (DR) Non-shorted input Instantaneous DR
Total dynamic range Equivalent Input Noise (EIN) Terminated input
Maximum Input Signal
130 dB at G0 129 dB at G2 121 dB at G4 110 dB at G6 146 dB 0.76 µV RMS at G0 0.23 µV RMS at G2 0.14 µV RMS at G4 0.13 µV RMS at G6 1768 mV RMS at G0 442 mV RMS at G2 110 mV RMS at G4 27.6 mV RMS at G6 2500 mV peak at G0 625 mV peak at G2 156 mV peak at G4 39.1 mV peak at G6
Total Harmonic Distortion
0.0003%
Channel-to-Channel Matching
< 0.1%
Common Mode Rejection
120 dB or greater
Crossfeed Isolation
120 dB or greater
Frequency Response
1.5 Hz to 750 Hz
Input Impedance Differential mode Common mode
22.1 kΩ in parallel with 0.049 µF 5.5 kΩ in parallel with 6.6 nF
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
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Analog Performance Specifications (continued) Powering Options
Power down the cable
Filters Digital anti-alias filters
All filters are resident and remotely selectable including: Linear or minimum phase response 750 Hz at 1/2 ms sample rate 375 Hz at 1 ms sample rate 187.5 Hz at 2 ms sample rate 94 Hz at 4 ms sample rate Rejection above Nyquist frequency: – 130 dB Passband ripple: ± 0.1 dB
Digital low-cut filters
32 frequencies (3 Hz – 90 Hz) Slope = 12 dB/octave
DC removal
Dynamic (6dB/octave, corner at 1.5 Hz.) Static (zero phase shift)
(ON or OFF, as desired)
Analog Performance Specifications are typical values at 25° C and 2 ms sample rate
Digital Performance Specifications See VectorSeis Receiver Data Sheet (P/N 1018-040000A)
United States – Stafford, TX Input/Output, Inc. Phone: 281.933.3339 Fax: 281.552.3150 Email:
[email protected]
Web Site www.i-o.com
© 2006. INPUT/OUTPUT INC. All rights reserved. Information subject to change without notice. Revised 05/06.
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