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地震勘探软件VISTA英文教程课件.ppt

1、VISTA 2D/3D Seismic Processing Softwarecontent1、Introduction to Vista2、Overview of Using Vista 3、Example 4、sum-up In VISTA you will find the most current seismic processing techniques and many new ideas in quality control and quality assurance.VISTA 2D/3D Seismic Processing System-Pentium Processor-

2、single or multiple CPUs.(Minimum 500MHz PIII).-Microsoft Windows NT 4.0,2000 Professional or Windows XP Professional.-256 Mb Minimum RAM memory.-Single or Dual monitor,1024X768 resolution or better.-200 Mb free disk space for program files.Projects typically take a further 10 Mb per 1000 input trace

3、s.-CD ROM drive for installation.-VISTA security block for PC.Not required if you have chosen a software VISTA license key.-SCSI Controller(Adaptec 2940 or better is recommended)-Optional 3480/3490/3590 Tape drive(Fujitsu recommended)-Optional Exabyte tape drive(8mm)Required PC Hardware2、Temporary S

4、ub tool bars are also widely used.3、Cursor tracking is commonly used.Main Features of VISTA4、Spread sheets occur in many places throughout VISTA.5、Customizing the Windows environment depends on the Control Panel set-up options.Zoom window display using Mouse pointer The steps in using VISTA1.Use top

5、 menu item File|Open or NEW to start the project.2.Use the Dictionary options if it is necessary to change from the standard SEGY or SEG2 definitions for your data.3.Use top menu item Input|Project Data List to open up the Project Data List4.Open the Command and Flow Windows.5.Save your project.Main

6、 interfacea flow file using linked CommandsThe Flow Command Windowa Project Data ListAdding SEGY data files to ProjectAdding a New Data Set NameSelect a data setSelect data filesData informationdatacontent1、Introduction to Vista2、Overview of Using Vista 3、Example 4、sum-upInteractive menus usually op

7、en a new window where the process will be applied to a selected project data set.The output of most interactive processes can be one or more of:Modified input data set(eg.muted,filtered)ASCII file(eg.Refraction statics,Velocities)Binary file(eg.modified VISTA headers)Click on the Interactive menu an

8、d you will see several pull-down items as follows:StaticsReflection/RefractionVelocity ToolsSeismic Scaled PlotSeismic Window DisplayAttribute Window DisplayGeometry Window DisplayHeader Window Display3D Seismic Window Display2D Data WindowsVSP InteractiveCteate Data SetI In nt te er ra ac ct ti iv

9、ve e M Me en nu uElevation/Refraction StaticsCalculate elevation and/or refraction statics for a 3D Pre-Stack data set.the first break picksthe survey geometry1.Pick first breaks which will be stored automatically in VISTA headersElevation/Refraction StaticsPick first breaks and Save to headers2.Use

10、 the Elevation/Refraction Statics window to calculate,quality control,and finally write the statics to the VISTA headers or an ASCII statics output filea)Set the number of layers,weathering,replacement velocities,datum through the Parameter iconb)Use the mouse to pick/define control points in the su

11、rvey area.Elevation/Refraction StaticsControl point selection circleFirst Break Picks Windowc)Next use the icon to fill in the grid finer and refine the statics solution.Elevation/Refraction Staticse)View various quality control displays using the right mouse button menu display.f)Save the static va

12、lues to VISTA header words or output to a statics file.d)Calculate the refraction statics using the icon.3.Add the StaticSh command to the flow chart for the brute stack and recompute the brute stack with statics after NMO.Elevation/Refraction StaticsElevation/Refraction statics Allows displaying st

13、atics and layer information in a 3D view.Use right mouse button menu to control the display of this view.3D view statics/layersSurface elevationRefraction staticsElevation/Refraction Statics Geometry WindowElevation/Refraction staticsElevation/Refraction geometry window,displays the survey and other

14、 information(Statics,Elevations,.)related to the calculation of statics for the survey.Velocity ToolsInteractive Velocity AnalysisImaging Velocity Analysis Continuous Velocity Analysis PSTM Velocity Analysis Display Vista Velocity File Display Velocity Data Set Interactive Velocity Tools MenuInterac

15、tive Velocity AnalysisThe velocity picking windowSelect semblance,CoffStack,CVS data sets to pick velocitiesgenerate semblance,common offset stacks,and common velocity stacks for velocity analysisVelocity Display File Window MenuVelocity Display/Edit WindowThe Icons can be used to choose the method

16、of display.Displays the velocity in CMP(2D Velocity File)or In-Line/X-Line(3D Velocity File).use the (In-Line)and (Cross-Line)to switch between displaying In-Line and X-Line.3D Ios-Velocity Display in Velocity File Display WindowDisplay Vista Velocity FileDisplays each velocity picks set from the fi

17、le in a graphical display.Velocity Graph Display3D Velocity File ViewDisplay the velocity field in a 3D cube view.Display Vista Velocity FileDisplay stacked seismic data set in 3D 3D Seismic Window Display you load geometry from the headers,and/or a combination of other files such as SPS,or SEGP1.Di

18、splay Shot and Receiver ElevationsQC 3D Geometry WindowDisplay foldOffset vs amplitude as geometry check.QC 3D Geometry WindowQC 3D Geometry WindowQC 3D Geometry WindowVSP InteractiveVSP Integrated Interpretive Display VSP Hodogram analysis windowNOTE:Both data sets must have been first-break picked

19、.VSP display window to combine VSP data,corridor stack and log files in one display.content1、Introduction to Vista2、Overview of Using Vista 3、Example 4、sum-upExampleExampleExampleBrute Stack with FilterExampleStack with statics and FilterExampleExampleBrute StackBrute StackStack with staticsStack wi

20、th staticsExamplemigration after stack.PSTM with final velocitiesExampleVISTA PSTMVISTA PSTMExamplemigration after stack.migration after stack.PSTM with final velocitiesPSTM with final velocitiesExamplePSTM from Processor xxxxxxXXXX PSTMXXXX PSTMExamplePSTM with final velocitiesPSTM with final veloc

21、itiesPSTM from Processor xxxxxxPSTM from Processor xxxxxxcontent1、Introduction to Vista2、Overview of Using Vista 3、Example 4、sum-upVISTA provides a complete suite of 2D and 3D processing routines on a PC running Windows 98,NT,XP,or 2000.Packages are available for field or office versions,pre-stack o

22、r post stack,2D only or 2D and 3D.1、INTERLINKED ATTRIBUTE&SEISMIC DISPLAY WINDOW Use a data attribute window as a quick means of identifying anomalies or problems and display the relevant data for inspection.2、THRESHOLD CRITERIA FOR AUTOMATIC DATA EDITINGCheck thresholds actively on a combination of

23、 any parameters,These thresholds may then be applied so as to omit those traces that fail from being processed.These thresholds may be changed and a different set of traces would then be excluded.sum-up3、MULTIPLE INPUT/OUTPUT PROCESSING FLOWS Have both multiple inputs and multiple outputs within pro

24、cessing flows.This enables the simultaneous generation of alternate products and is a very useful aid in processing trials.It may also be used to treat some fraction of the data in a different fashion according to a particular key,e.g.if trying to match Vibroseis data with dynamic data.4、POPULAR PLA

25、TFORM VISTA is unique in offering full seismic processing and advanced QC facilities on PCs.With the ever increasing power of PCs,their low cost,and ease of use,this is a very powerful benefit.sum-up5、SCALED PLOTTING AND SIDE LABELS VISTA provides CGM+plotting using the Larson package as an integral

26、 component of the software.Scaled plots may also be directed to a Versatec(B/W raster)type of plotter(e.g.OYO)or to a Windows printer.A unique and flexible side label generator is supplied.6、SPREAD CONFIRMATION DIAGNOTICSUnique abilities via the attribute window and header plots to confirm the shot

27、and receiver positions for any or all in a 3D survey.sum-up7、A TRULY MODERN SYSTEM VISTA provides all the advantages of a new design utilizing C+code allied to concepts developed through much experience of designing specifically for seismic processing.This leads to very rapid capabilities for enhanc

28、ement and easy addition of new processing routines.8、OPEN SYSTEM VISTA provides a programming development interface allowing the capability for users to add their own algorithms to the existing suite of software.Industry standard formats are used wherever they exist.Files can be created in ASCII such that they may be created/edited with standard word processing or spread-sheet software.9、Service sum-up

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