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1、VISTA 2D/3D Seismic Processing Software,content,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,Read 2D or 3D data in a variety of formats from disk or SCSI device(Exabyte,3480,Da
2、t.etc.)Enter 2D or 3D geometry information.Transfer some or all of the data header information to internal VISTA headers using dictionaries“to translate them.Create Sort Indexes to let you access or process your data in any desired order.Graph or cross-plot one or more header items or display them w
3、ith seismic data.,VISTA 2D/3D Seismic Processing System,Graph or cross-plot one or more header items or display them with seismic data.Examine and display header items on a geometry map and place them at shot,receiver,or CMP locations.Use a wide variety of display tools to QC positional and seismic
4、data together.Use the large inventory of seismic processing algorithms to create seismic processing Flows and execute them.,Required PC Hardware,-Pentium Processor-single or multiple CPUs.(Minimum 500MHz PIII).-Microsoft Windows NT 4.0,2000 Professional or Windows XP Professional.-256 Mb Minimum RAM
5、 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 traces.,-CD ROM drive for installation.-VISTA security block for PC.Not required if you have chosen a software VISTA license key.-SCSI Contro
6、ller(Adaptec 2940 or better is recommended)-Optional 3480/3490/3590 Tape drive(Fujitsu recommended)-Optional Exabyte tape drive(8mm),Required PC Hardware,2、Temporary Sub tool bars are also widely used.,3、Cursor tracking is commonly used.,Main Features of VISTA,1、Tools bars are the central feature.Yo
7、u initiate actions by clicking on one of the icons in a tool bar.,Main Features of VISTA,4、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,Starting VISTA,1、Double click on
8、this icon to start VISTA.,2、To start VISTA from here,click on the Windows START-Program-Vista Seismic Processing 4.50-Vista Seismic,The steps in using VISTA,1.Use top 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
9、SEG2 definitions for your data.,3.Use top menu item Input|Project Data List to open up the Project Data List,4.Open the Command and Flow Windows.,5.Save your project.,Main interface,a flow file using linked Commands,The Flow Command Window,a Project Data List,Adding SEGY data files to Project,Adding
10、 a New Data Set Name,Select a data set,Select data files,Data information,data,content,1、Introduction to Vista,2、Overview of Using Vista,3、Example,4、sum-up,Interactive functions,Interactive menus usually open a new window where the process will be applied to a selected project data set.The output of
11、 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 and you will see several pull-down items as follows:,Interactive Menu,Elevation/Refraction Stat
12、ics,Calculate elevation and/or refraction statics for a 3D Pre-Stack data set.,the first break picks,the survey geometry,1.Pick first breaks which will be stored automatically in VISTA headers,Elevation/Refraction Statics,Lets define the steps necessary for 3D refraction statics.,Pick first breaks a
13、nd Save to headers,2.Use the Elevation/Refraction Statics window to calculate,quality control,and finally write the statics to the VISTA headers or an ASCII statics output file,a)Set the number of layers,weathering,replacement velocities,datum through the Parameter icon,Elevation/Refraction Statics,
14、b)Use the mouse to pick/define control points in the survey area.,Elevation/Refraction Statics,Control point selection circle,First Break Picks Window,c)Next use the icon to fill in the grid finer and refine the statics solution.,Elevation/Refraction Statics,e)View various quality control displays u
15、sing the right mouse button menu display.,f)Save the static values 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/Re
16、fraction Statics,Elevation/Refraction statics,Allows displaying statics and layer information in a 3D view.Use right mouse button menu to control the display of this view.,3D view statics/layers,Surface elevation,Refraction statics,Elevation/Refraction Statics Geometry Window,Elevation/Refraction st
17、atics,Elevation/Refraction geometry window,displays the survey and other information(Statics,Elevations,.)related to the calculation of statics for the survey.,Velocity Tools,Interactive Velocity AnalysisImaging Velocity AnalysisContinuous Velocity AnalysisPSTM Velocity AnalysisDisplay Vista Velocit
18、y FileDisplay Velocity Data Set,Interactive Velocity Tools Menu,Interactive Velocity Analysis,The velocity picking window,Select semblance,CoffStack,CVS data sets to pick velocities,generate semblance,common offset stacks,and common velocity stacks for velocity analysis,Velocity Display File Window
19、Menu,Velocity Display/Edit Window,The Icons can be used to choose the method of display.,Display Vista Velocity File,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 Disp
20、lay in Velocity File Display Window,Display Vista Velocity File,Displays each velocity picks set from the file in a graphical display.,Velocity Graph Display,3D Velocity File View,Display the velocity field in a 3D cube view.,Display Vista Velocity File,Display stacked seismic data set in 3D,3D Seis
21、mic Window Display,you load geometry from the headers,and/or a combination of other files such as SPS,or SEGP1.,QC 3D Geometry Window,3D Geometry Window,Display Shot and Receiver Elevations,QC 3D Geometry Window,Display fold,Offset vs amplitude as geometry check.,QC 3D Geometry Window,QC 3D Geometry
22、 Window,QC 3D Geometry Window,VSP Interactive,VSP Integrated Interpretive Display,VSP Hodogram analysis window,NOTE:Both data sets must have been first-break picked.,VSP display window to combine VSP data,corridor stack and log files in one display.,content,Example,Example,Example,Brute Stack with F
23、ilter,Example,Stack with statics and Filter,Example,Example,Brute Stack,Stack with statics,Example,migration after stack.,PSTM with final velocities,Example,VISTA PSTM,Example,migration after stack.,PSTM with final velocities,Example,PSTM from Processor xxxxxx,XXXX PSTM,Example,PSTM with final veloc
24、ities,PSTM from Processor xxxxxx,content,VISTA 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 or post stack,2D only or 2D and 3D.,1、INTERLINKED ATTRIBUTE&SEISMIC DISPLAY WINDOW Use a da
25、ta 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 any parameters,These thresholds may then be applied so as to omit those traces that fai
26、l from being processed.These thresholds may be changed and a different set of traces would then be excluded.,sum-up,3、MULTIPLE INPUT/OUTPUT PROCESSING FLOWS Have both multiple inputs and multiple outputs within processing flows.This enables the simultaneous generation of alternate products and is a
27、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 PLATFORM VISTA is unique in offering full seismic processing and advanced QC facilities
28、on PCs.With the ever increasing power of PCs,their low cost,and ease of use,this is a very powerful benefit.,sum-up,5、SCALED PLOTTING AND SIDE LABELS VISTA provides CGM+plotting using the Larson package as an integral component of the software.Scaled plots may also be directed to a Versatec(B/W rast
29、er)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 and receiver positions for any or all in a 3D survey.,sum-up,7、A TRULY MODERN SYST
30、EM 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 enhancement and easy addition of new processing routines.,8、OPEN SYSTEM VISTA provides
31、 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,谢 谢！,
