3D velocity model and migration results viewer
Contents
1. 3D velocity model viewer User s Manual 11 28 2014 Page 1 of 8 VSPvelmod3D 3D velocity model and migration results viewer 1 Function The program is intended for 3D visualization of next types of data e 3D velocity model prepared for 3D VSP modeling vsprtmod3d and 3D VSP migration vsprtmigr3d e 3D seismic image in depth scale after migration vsprtmigr3d e VSP observation geometry well shot points receivers extracted from some seismic file stored in GeoEast database It is reasonable to use seismic file inputted to 3D VSP migration vsprtmigr3d or outputted from 3D VSP modeling vsprtmod3d e Ray trace paths produced by 3D VSP modeling program vsprtmod3d Ray trace paths are stored in one file of special binary format with arbitrary filename The program allows also to import 3D VSP velocity model 2 Input and Output 2 1 Input data 3D velocity model in GeoEast format 3D velocity model in text file format 1D velocity model in GeoEast format Migration image in GeoEast seismic format Ray traces in lt what gt file format Observation system in GeoEast seismic format 2 2 Output Data 3D velocity model in GeoEast format GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 2 of 8 3 Windows Description 3 1 Main Window The main window includes menu bar data open tool bar model slices manipulation tool bar migration slices manip2. User should select seismic with observation system information After opening it is possible to view observation system Well shot points receivers After loading information string is displayed on 3D scene label 3D Observation geometry IMPORTANT To achieve right combined view of geometry and migration results one must load proper velocity model because migration results are stored in model coordinate system GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 4 of 8 Open ray traces A standart file selection dilalog appears User should select file with ray traces After opening it is possible to view ray traces User can select which rays to draw using View gt Ray Traces selector Import 3D VM from text file Save 3D velocity model A dialog of 3D velocity model selection appears User must select name to save model or input new name by clicking new name button and typing new name in appearing window Exit Terminate program View menu View _ 2 3D velocity models bounds on off i 3D velocity model slices on off i 3D seismic image a Observation geometry on off ey Ray traces on off Se Ray traces selector 3D velocity model bounds on off Toggles drawing of 3D velocity model bounds If model is not loaded model selection dialog appears 3D velocity model slices on off Toggles drawing of 3D velocity model sl
3. ices When this menu item activated first time slices data is calculated If model is not loaded model selection dialog appears 3D seismic image slices on off Toggles drawing of 3D seismic image migration results slices If seismic image is not loaded seismic selection dialog appears Observation geometry on off Toggles drawing of observation geometry well shots receivers If observation system is not loaded seismic selection dialog appears User must select seismic with geometry data Ray Traces on off GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 5 of 8 Toggles drawing of ray traces If traces are not loaded file selection dialog appears User should select file with ray traces 3 1 2 File tool bar mod miar som FAYS ray Through Data open tool bar one can open different models seismic geometry and rays The functions of buttons in the tool bar are corresponded to that of menu item Tool bar buttons description is as follows Open 3D velocity model Open 3D seismic image Open geometry from seismic Open ray traces 3 1 3 Model slices operations tool bar p mo This tool bar is used to create and remove 3D velocity model slices Tool bar buttons description is as follows Add X velocity profile adds slice transversely to X axis Add Y velocity profile adds slice transversely to Y axis Add rotating vel
4. ject vsp_test2 Current survey test_survey Model area sizes optional x size m Y size m size m New 3d model GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 7 of 8 This dialog appears if user tries to open 3D or 1D speed model or to save 3D speed model User must select project and survey then select model to load from the list below If user saves 3D model he can push New name button and enter name When opening model new name button is disabled 3 3 Seismic selection dialog x Current project vsp_test2 Current survey test_survey List of seismic files Line gt Filename Virtual Line Set I lineld d 2d_test A test_2 A test_4 Snaps_diff_multi g absest_seis_inl absest_seis_in2 absest_seis_in3 i absest_seis_in4 i absest_seis_in5 an 4 Filename absest_seis_in1 z This dialog appears if user tries to open seismic file with migration results or geometry data User must select project and survey then select model to load from the tree below 3 4 Ray traces selector x Shots 0 1 ji Recievers 2 5 12 34 36 36 Bounds lo 2 Ray types M PP lf PPup M PSup M PSdown r ss SSup SPup l SPdown wep _ cise _ GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 8 of 8 One can spaw
5. n this dialog if it is useful to fade some rays User can select rays belong to specific shot points receivers model bound and of specific type Needed shots receivers and bounds are specified in corresponding edit fields At the right there are combo boxes which help user to select desired values Needed ray types are checked below 4 Execution procedure Typically user first loads 3D seismic model using File gt Open 3D seismic model or by clicking Open 3D velocity model button on File toolbar or by pushing Toggle model bounds button on view toolbar and selecting needed model in model selection dialog After loading model bounds are displayed User may rotate Zoom move scene using mouse If user push Toggle model slices button on View toolbar slices data would be generated and one rotating slice would be displayed To operate with slices user must push Switch scene observing profile movement button After that user can add delete move slices but can not rotate scene If user pops Switch scene observing profile movement button he will return to scene observing mode User can open migration results similar to opening model but using desired menu items and toolbar buttons see interface description After loading migration results one rotating migration slice would be displayed Working with migration results slices is similar to working with model slices but is doing through Migration slices ope
6. ocity profile adds slice one can rotate against vertical Z axis Add Z velocity profile adds horizontal slice Delete selected velocity profile deletes model slice currently selected 3 1 4 Migration slices operation tool bar pume This tool bar is used to create and remove 3D seismic image migration results slices lt is similar to Model slices operation tool bar but applies to seismic slices Tool bar buttons description is as follows Add X migration profile Add Y migration profile Add rotating migration profile Add Y migration profile Delete selected migration profile 3 1 5 Switch scene observing profile movement tool bar This tool bar has single button GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 6 of 8 switch scene observing profile movement when it is pushed an user can move slices otherwise user can rotate move and zoom scene 3 1 6 View tool bar Through this tool bar an user can toggle drawing of different types of data The functions of buttons in the tool bar are corresponded to that of menu item Tool bar buttons description is as follows 3D velocity model bounds on off 3D velocity model slices on off 3D seismic images slices on off Observation geometry on off Ray traces on off Ray traces selector 3 2 Model selection dilaog E MyDialog 24 Project and survey Current pro
7. ration tool bar User may load observation geometry Procedure is similar to opening migration results but is doing through desired menu items and buttons WARNING To achieve right displaying of migration results and observation system user MUST load desired 3D speed model GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008
8. ulation tool bar view mode toolbar and work area File View M Semele Do Kil6 Oo a Kelle 3D velocity model wa East 100 North 4100 X azimuth 0 deg Z offset 0 3D seismic image wa_image_out Observation ove wa seisin Bila a j y Velocity m s ay n 2153 41 2473 44 ee GeoEast VSP project GEOVERS Ltd BGP R amp D Center 2008 3D velocity model viewer User s Manual 11 28 2014 Page 3 of 8 3 1 1 Menu Bar File menu File View es Open 3D velocity model Open 1D velocity model ca Open 3D seismic image Open geometry trom seismic Open ray traces Import 3D VM from text file Save 3D velocity model Open 3D velocity model A dialog of 3D velocity model selection appears After opening it is possible to view 3D velocity model and load other kinds of data After loading information string is displayed on 3D scene label 3D velocity model Open 1D velocity model A dialog of 1D velocity model selection appears Selected model will be converted into 3D velocity model After opening it is possible to view 3D velocity model and load other kinds of data Open 3D seismic image A dialog of seismic selection appears User should select seismic with migration results After openinig it is possible to view slices of migration results After loading information string is displayed on 3D scene label 3D seismic image Open geometry from seismic A dialog of seismic selection appears
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