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1、ReconnaissanceObjectives Selecting and manipulate seismic lines Create Interpretation windows Manipulating an Interpretation window Display wiggle traces Posting data in an Interpretation widow Settings for SEG-Y seismic data Settings for ZGY seismic data Create and edit color palettes Display multi
2、ple seismic views on the same screen Linking windows Random intersections Composite intersections Create a Well section fence diagram Volume rendering Selecting and manipulating seismic lines Manipulate plane (M) icon Player at bottom of window (seismic volume must be active)Function bar icons (Seis
3、mic interpretation process must be active)Select active seismic line (K)Select inline intersection (L)Select crossline intersection (shift + L) Play through volumestopGo to endsSet step/play incrementStep through volumeCreate Interpretation windows41To create new1.Create new interpretation window fr
4、om window menu (select line from input pane), or2.Right click on seismic lineTo change lines3.Check box in front of a different seismic line4.LMB on triangle above seismic or drag to new position23Manipulating an Interpretation window1.To pan use LMB (Viewing mode ) on the seismic intersection or sc
5、roll bar (white area) to move in vertical or horizontal directions2.To zoom - use wheel mouse, magnifying glass or double arrows on scroll bar (edge between white and grey areas)3.To squeeze/stretch - press while zooming (using the scroll bars or magnifying glass)4.To flip a line, use the Align came
6、ra with plane/flip window icon in the player bar.21345.Set specific scale open Settings for the Interpretation window 5Display wiggle tracesWiggle traces are only available in the Interpretation window and in the well section window (Synthetic seismograms)1.Display a seismic line in an Interpretatio
7、n window212.Open Settings for the seismic data. Go to the Style tab and specify the settings for the Wiggle tracesPosting data in an Interpretation windowTo post data in the Interpretation window, toggle on the appropriate boxes in the Input or Models tab: Horizon interpretation Faults Wellbores (ne
8、eds a time/depth relationship) Logs Well Tops 3D grid data (properties, edges, etc.)Display of the objects is changed in the appropriate Settings dialog, under Style tab1.Well data display can be controlled by a distance limit. Wellbores (or part of the wellbore) and tops beyond the limit will not b
9、e posted212.Display style of 3D grid data is set for the selected line under 3D grid settings sub-tabSettings for SEG-Y seismic data (2D and 3D) 1.Settings for SEG-Y seismic data displayed in a 3D window, Style tab, activates a SEGY style sub-tab2.Decimate when dragging intersections effects the dis
10、play of seismic lines when moved with the Manipulate Plane tool3.Enhance intersection resolution is purely an interpolation of seismic between neighbouring data24.Enable transparency for intersections combined with editing of the opacity curve under the colors tab to see through the seismic sections
11、134Settings for ZGY seismic data (3D)2.Bump mapping shades intersections based on amplitudes 23.Tile edge blending interpolates across tile borders and gives a smoother appearance of intersections311.Settings for ZGY seismic data displayed in a 3D window, Style tab, activates a ZGY style sub-tabCrea
12、te and edit color palettes1.Go to the Templates pane in the Petrel Explorer window12.Open the Seismic color tables folder with all the predefined color palettes23.Click on one color palette e.g. Seismic (default) and copy (Ctrl C) and paste (Ctrl V) using the keys on the keyboard. A copy is made3Ctr
13、l + CCtrl + VCreate and edit color palettes3.To attach the new color template to the seismic cube, go to the Info tab under Settings for the seismic cube and change the Template32.To change the color palette, go to the Colors tab. Click on a handle and drag it to change the balance of the palette 21
14、.To change the name, double click on the color palette and go to the Info tab. Change the name in the Name box1Options to tile horizontally or vertically Display multiple seismic views on the same screenUnder the windows pane: Check the box in front of the objects desired to be shown in the display
15、area.Interpretation is updated interactively between windows Linking windows1.From the Windows tab, open Settings for the displayed 3D Window and toggle on Linked to visual group. Select First2.Repeat procedure for the interpretation and the 2D windows3.Activate the Interpretation Window and toggle
16、on any available interpretation. Observe the other windows4.Click the Cursor Tracking to see cursor position in all windows1234Random Intersections - definitions211.Seismic intersection (Random line). Is a vertical and randomly aligned intersection that extends through the seismic volume without any
17、 bends. Can also be tilted (turn off ). Insert by right mouse button click the seismic volume2.Arbitrary polyline intersection. Use . In 2D and 3D windows define the path by left mouse button click. 3.Seismic aligned polyline intersection. Same as arbitrary, but the path between intersection pionts
18、are oriented in either inline or crossline directions4.Combination of arbitrary and aligned polylines. Use both and 342.If using a 3D window, post an object (e.g. timeslice). Not required in a 2D window2Random intersections - exampleHow to digitize an arbitrary polyline intersection11.Activate the S
19、eismic Interpretation process3.Click on: ”Create arbitrary polyline intersection” icon 34.Draw the polygon(s) using the left mouse button and stop by double clicking. The vertical seismic intersection will automatically be displayed4Double click left mouse buttonin order to end polygon path6.To edit
20、 the intersection activate the Make/Edit Polygons process, activate the Arbitrary polygon and click on the ”Select and Edit/Add points” or ”Select and Edit Line” icon in the Function tool bar6Click and dragPoints or lines7.Edit a point, or the whole polygon line and the seismic intersection will be
21、changed according to the updated polygon position7Random intersections example (edits)5.The general seismic intersection together with the polygon will be put under the Input pane in the Petrel Explorer window5Composite intersections generalComposite lines can be created with both 2D and 3D seismic
22、data The compositions can also be made from any of the windows; interpretation, 2D or 3D The procedure varies slightly, depending which window the user selects in order to create the compositionComposite lines can either be seismic aligned or have arbitrary directions (3D)1.Activate Seismic Interpre
23、tation process12.Open up the type of window to create composite line from (2D, 3D or Interpretation), and activate relevant data for display in this window (example shows a 3D window)3.Start composing between lines as desired using the relevant functions on the function bar. Stop by double clicking
24、left mouse buttonInterpretation window: , , and 2D and 3D windows: , and 4.New composite line with sub parts is stored as objects on the input pane423Composite intersections combined 2D and 3D data 1.Activate the Seismic Interpretation process5.You can manipulate the composite intersection using the
25、 functions on the function bar and manage the various parts from the object boxes on the input pane2.Open a 3D window and select the relevant data for your composite line (i.e data that ties wells).23.Click and select parts (white frame) to the composite intersection. Close selection by double click
26、ing left mouse button3Composite selections are marked in white4.Open a new Interpretation window. Turn on the composite intersection from the input pane. 4Random lines - Well section fence diagramHow to create a Well Section Fence1.Select ”New well section window” from the Window menu 12.Expand the
27、Wells folder and select the wells of interest233.Expand the Well Section in the Windows tab in Petrel Explorer. Click on Well Section Fence (and activate it) with a 3D Window activated4.Under settings for the Well Section Fence, select where to align the section (applies to deviated wells)48.The sei
28、smic is displayed on the Well Section Fence. Use TWT as display domain selected from the pull-down menu8Random lines - Well Section Fence diagram6.Click on the blue square in front of the 3D cube 65.Click on the ”Toggle visualization on plane” button57.Open Settings for Wells, Time tab. Specify the
29、time/depth relationship. Only checked items in the priority list is used as source for the time depth relationship when pressing Execute7Volume rendering1.Go to the Colors tab under Settings for the seismic cube and define the Opacity curve12.Go to the style tab under Settings for the ZGY volume and click on Volume render to start the volume rendering using the amplitudes specified in the Opacity curve2EXERCISE Reconnaissance
