Presentation on theme: "New Features in Release CE7. Overview At Hampson-Russell, we are proud of our newest software release - even prouder than we were of the last release."— Presentation transcript:
New Features in Release CE7
Overview At Hampson-Russell, we are proud of our newest software release - even prouder than we were of the last release. Not only have we improved much of the previous functionality but we have added a lot of new & innovative features. We want to ensure that you are aware of these new features and how to use them. All we ask is that you take a few minutes of your time to browse through this presentation and take a look at the features that you think could be useful to you. This PowerPoint Presentation is hyper-linked if you view it in the slide show view (F5). The buttons in the lower right do the following: Main Table of Contents Program-specific Table of Contents Previous / Next Slide
Table of Contents New General Features GEOVIEW WELL EXPLORER AVO and AFI eLOG EMERGE ISMAP STRATA PRO4D PROMC GLI3D OPENSPIRIT
New Programs: AFI and Well Explorer Data Manager and Data Explorer Improved SEGY Loading Map Utilities Improved Arbitrary Lines Landmark R Support SeisWorks Horizons Import Frequency Domain Merge Improved Roy White Wavelet Extraction Time-to-depth conversion of horizons Runtime Messages Captured New Features Documentation NEW GENERAL FEATURES
Two new programs have been added to the Hampson-Russell Software suite: AFI & Well Explorer. AFI is an acronym for AVO Fluid Inversion. AFI was developed in conjunction with ENI-AGIP and is an add-on to our existing AVO software. It uses Monte-Carlo simulation of stochastic lithology and fluid models and attempts to fit the results to AVO attribute slices and generate fluid probability and indicator maps. The Well Explorer software comes from a partitioning of our former Geoview software. Geoview will now serve as the program launcher for the Hampson- Russell Software suite and control the run-time message logging and user preferences. The Well Explorer will now be used for managing well databases and it includes a 3D well path visualization program. New Programs AFI & Well Explorer
Data management issues have been addressed in the CE7 release. All of the HRS software products now have a Data Manager button on the top of the side bar menu or under the File menu on the top menu bar… Data Manager & Data Explorer
The Data Manager centralizes all of the exporting and importing menus of the various data types that projects typically require. Data Manager & Data Explorer
The Data Explorer is a utility that allows you to view, manage and edit the various data sets in your project. Data Manager & Data Explorer
In the Data Explorer, use the Data Type selectable menu to select and display the data type (i.e., data slice, horizon, volume, wavelet, well or window session) that you would like to examine... Data Manager & Data Explorer
Choose which viewing methods you would like to use to examine your data… Data Manager & Data Explorer
By displaying the Horizons, for example, you can edit the attributes of all the horizons in your project easily and in one interface… Data Manager & Data Explorer
Deleting data sets is a simple case of selecting the data set in either the Tree or the List view and clicking on the Delete button… Data Manager & Data Explorer
Double-click on the item in the Tree view to display it… Data Manager & Data Explorer
You can also quickly create Volume Groups by clicking on the New Volume Group button. Volume Groups are useful for grouping surveys by vintage for time-lapse projects, for example. Simply create a new volume group and give it a name… Data Manager & Data Explorer
…and drag-and-drop the volumes into the group. The seismic volumes actually remain where they are on disk, its just pointers that get created – so you can delete the volume group without actually deleting the component seismic volumes. Data Manager & Data Explorer
Improved SEGY Loading The grid page of the seismic load dialogue has had a number of improvements made to it.
Improved SEGY Loading The grid now has the corners labelled. The first and last cross lines are labelled also. The grid display can also be resized with the menu to allow a better view.
Improved SEGY Loading Once the corner locations and bin size (IL/XL spacing) has been entered the Calculate button is used to create the new grid. It is then viewed on the main page. This greatly simplifies the previous approach. Which involved paper calculations to get the grid right. It is now more intuitive and interactive. The seismic grid orientation can be set by the X and Y co- ordinates corners.
Improved SEGY Loading Another new feature allows geometry to be copied from a previously loaded seismic file. This can greatly improve the efficiency of loading as the grid does not need to be redefined.
20 New map functionalities for all of our software have been added. These new utilities allow you to manipulate and modify the maps in your project. STRATA AVO EMERGE Map Utilities
The Map Operations utility allows you to apply some simple mathematical functions to either a single map or a pair of maps. Map Utilities
The Map Filter utility allows you to apply either a Running Average Filter or a Median filter on any map in your project. Click on the Next button to specify the window length. Map Utilities
The Map Maths utility allows you to programmatically manipulate any maps in your project. This feature is similar to our popular Trace Maths and Log Maths utilities. First, select the input maps for the Map Maths… Map Utilities
Then specify the output map name…
Map Utilities The geometry information…
Map Utilities Rename the input slice variable names if you want…
Map Utilities And enter in the script that you would like to use. The syntax for Map Maths is similar to the C-based Trace Maths utility and allows for logical expressions such as if() … else (). Trace Maths documentation can be found on the HRS web-site at:
You now have several new option when creating your Arbitrary line. Create new nodes at well location: This option allows you to make a node point at one or more well locations OR Create new nodes along a deviated well: This option allows you to create nodes along a deviated wells borehole. The resulting arbitrary line will consist of the Inlines, and Cross Lines the borehole cuts across. Arbitrary Line Improvements
Extract only the trace at the node location: This option will extract only the node points selected and none of the seismic that exists between node points. List previous arbitrary lines: This option pulls up a menu of existing arbitrary lines that you can then apply to the current arbitrary line or delete old lines. Arbitrary Line Improvements
Insert a node: This button allows you to insert a new node point. Delete all nodes: This button allows you to delete all existing node points within the current arbitrary line. Delete selected nodes: This button allows you to delete selected node points within the current arbitrary line. Arbitrary Line Improvements
Access to Landmark R (Emerald City) is now supported through our existing WLExchange program. Landmark R Support
Looking at the Seismic data window, you can select to open horizons by selecting the Horizon/Import Horizons/From SeisWorks option. You also use the Data Manager menu options. SeisWorks Horizons Import
Select the SeisWorks project and you can view the horizons in the lower list box. SeisWorks Horizons Import
Now you can select the horizon to import, by selecting it in the Select for import table. You also can change the color in the Presentation color table. SeisWorks Horizons Import
After hitting the OK button on the Horizons Information menu, the program will give you some Pick Summary information. By clicking on the OK button, the Seismic data window will now display your selected horizon/s. SeisWorks Horizons Import
You can select the Horizon Display option under the Horizon menu button, and choose to display the horizon. SeisWorks Horizons Import
With the new Frequency Domain Merge option you have the ability to combine two volumes of different frequencies into one new volume. An example of when to use this option would be, if you had an inversion result you wanted to combine with a filtered log model. Frequency Domain Merge
Here on the second page of the process you will need to specify the frequency range that overlaps between the two data sets, along with a taper length. Once this is completed the software will run the Frequency Domain Merge and create a new volume for you. Frequency Domain Merge
We have made the Roy White wavelet extraction easier to use by simplifying the process. You no longer have to fill in your Reflectivity time or Optimum Lag Search Length. We will calculate them for you. You only have to specify the White Noise factor and Diagnostic Listing to Console. These two variables are explained on the next page. Improved Roy White Wavelet Extraction
White Noise Factor: This is the pre-whitening factor that is used To prevent instability in the calculation of the coherence function. Diagnostic Listing to Console: When you perform a wavelet extraction using the Roy White algorithm, you can also choose the level of diagnostics that you would like to generate. Your choices are None; Short, which lists the values of the PEP, RMSE, and BW parameters for each well and Long, which provides extensive details. Note that if you start the programs by selecting an item from a menu, rather than typing a command in a terminal window, the diagnostic listings will not be returned to a console. Improved Roy White Wavelet Extraction
You now have the ability to convert a time horizon into the depth domain or a depth horizon into the time domain. Time to Depth Conversion of Horizons
Select the desired horizons and click Add >> After your horizons have been selected You have several editing options available. These option are easy to follow and self explanatory. Time to Depth Conversion of Horizons
On the last page you have The option to rename the Output horizon. Time to Depth Conversion of Horizons
Runtime Messages Captured Each time the software is started a new file is created in the project directory that stores runtime messages. If anything goes wrong, you or our technical support team may need this information to track down the problem. In the extremely rare and highly improbable event that something goes wrong, please find the runtime messages file on your system and it to us.
New Features Documentation Documentation, in the form of a wonderfully written, hyper-linked PDF, is now provided that illustrates all of the new features in the CE7 release. Click on Help > New Features to launch the PDF.
Well Explorer Window User Settings and Preferences NEW GEOVIEW FEATURES
Well Explorer Window The ugly and clumsy Geoview interface has been redesigned and is now a clean sleek useful interface. Weve partitioned the old Geoview into two parts: a software launcher and a well database utility. NO UGLY INTERFACES ! NEW USER HAPPY FACE
User Settings From the GEOVIEW task bar, a number of user settings can be entered. This can save time on browsing and generally customise the look and feel of the software to the requirements of the user.
User Settings: Paths Three default paths exist. These are initially set to be the respective directories in the installation directory. However as this may not always be what is desired by the user they can now be specified. The information can be inputted by typing, or browsing to the directory required.
User Settings: Preferences The Preferences page has three pages of options that can be set. General controls the records of files opened and history data. Appearance sets the look of the windows. Notes gives some guidance on the settings.
Well Explorer Look and Feel Logs & Tops Summary Report Copy Depth-Time Tables to Wells Duplicating Wells & Logs Unit Conversion Globally Change Log Types Search Data Samples ASCII Data Export Copy to clipboard 3D Well Path Viewer NEW WELL EXPLORER FEATURES
The Well Explorer has a Windows Explorer look and feel, with a tree structure to allow you to navigate around your data. Well Explorer Window The main features are a display filter, and new paged format for the Wells, Base Map and Data Summary. Data Import and Export have special drop down menus at the side of the window
Well Explorer Window : Details The view panel gives a tree style display of the logs in each well. Double clicking the item displays it in the table view. The arrows allow navigation between the well list (1), log list (2) and log data (3), as well as Top (4) and deviated geometry (5)
Well Explorer Window : Details All tables have interactive drop downs and tables for instant editing, QC and addition of data. Greatly expanded Well and Log Options, covered in more detail later. However ability to create new logs, data points as well as copying data has been added.
Within the new GEOVIEW the ability to carry out a complete statistical analysis on the loaded data is available. It occurs under the Summary tab in the Well Explorer main window. The Summary window is initially blank and the report is generated by the user. A progress bar is displayed as the statistics are calculated. Logs and Tops Summary Report
Logs and Tops Summary Report: Details The user can define a range of data points for the calculations. The default is the whole log range. An equivalent summary can be made for the Tops data. The summary report contains data such as maximum and minimum amplitudes, standard deviations and number of points. Right clicking in the table allows customisation of the items displayed.
It allows existing Depth- time curves to be assigned to P-wave curves in other wells. New P-wave logs can also be generated from the Depth-Time curves. Copy of DT tables The menu is launched from the log display in the table view for the specific well. It joins other new options at this level.
Duplicating Wells and Logs Improvements When the wells are displayed in the Table View of the Well Explorer, wells can be copied from other databases. Series of dialogues guides the copying process. This cuts down on loading time and allows greater flexibility in testing and data back up. The Well Options menu allows duplication of log information.
When logs are displayed in the Table View of the Well Explorer, logs can be copied between wells in the database. Duplicating Logs and Wells Improvements The available wells in the database are displayed in a list. The logs that are required for copying are then checked below.
The Well Explorer main window has a number of options for the speeding up of well, log and unit harmonisation within the database and during the load process. Unit Conversion The log units can be standardised to a common choice. This can be a text book conversion or user-defined.
A further Option allows corrections to preferred log types and units. By using a search algorithm on the log names in the database, log types can be set automatically. This saves time on the old process where unrecognised log types and names meant it was done manually. Globally Change Log Types
Search Data Samples Within the tables of actual log data the new GEOVIEW can search the samples for specific values, as well as the previously available monotonic changes. The search criteria can be set with the menu opposite. It will highlight, exclusive or inclusive sample ranges. Answers are highlighted in a pop-up.
ASCII Export of Data Individual logs can be exported as ASCII files from the log table display in the Well Explorer.
LAS Export of Data Multiple logs can also be exported as LAS or ASCII files from the database. The interface for this procedure has been revamped for the CE7 release. Allowing more control over the formatting of the file.
Copy to Clipboard This new option allows the copying of large quantities of data points between locations within the log tables in the database. Data is selected by highlighting the required cells. These are copied to a background clipboard before being deposited where required with the Paste option.
Then you click the cube on the toolbar. Use the Base Map View of the Well Explorer Window to show all wells in the database. Well Path Viewer
An OpenGL Viewer will be started with a perspective view. Well Path Viewer
Quick buttons of some preset viewing directions. The picture shows a typical side view of the North-South direction. There is a North arrow on the side showing the viewing angle and direction graphically. You can always type in a specific set of angles and viewing distance at any time. The dials allow you to rotate the picture easily. They are also here for you to reproduce an exact picture. Left mouse button := rotate Middle (or Left+Right) := zoom in and out Right mouse button := move up, down and sideway Buttons for easy navigation. Depth Scalar control the depth scale of the well path representation on the screen. ( > 1.0 expands; < 1.0 compresses ) Toggle to control annotation on/off for well(s). Selection is based on what being selected on the tree view in the main window. Check the toggle here to show tops along the well path. Size of the top disc and thickness can be controlled for presentation purposes. Well Path Viewer
Currently the size of the tops can be changed by a toggle. Annotations at tops and at bottom hole locations, for either all wells or for selected wells from the Explorer (the window with a Tree view and a Base Map view).
A constant vertical depth slicer (with orange discs) showing all the exact locations of the wells where they hit this vertical depth. The slice can be moved up and down the well paths using the left mouse button. Hint: By default, the slice starts at the very bottom so you have to first start by moving it up to the surface, i.e. pushing the left mouse button up the screen. Well Path Viewer
The second toggle button (3D Tracker) allows you to move a yellow ball horizontally on this constant depth plane. Hint: You also move the ball using the left mouse button. The ball shows you the (x,y, -z) location within this 3D volume.
Well Path Viewer The yellow cone shows the height of the KB. If you see a cone with an abnormal height (too tall), it indicates that either the KB elevation or the Surface elevations have been loaded with incorrectly. In this case, the surface should have been 913.7m instead of zero in the table.
Blue dotted line indicates that the well has no data loaded in the GeoView database until a deeper depth where the well shows either Green or Red in colour. Only for vertical wells only at this moment. Well Path Viewer
View a subset of the database by zooming in from the Base Map view first to avoid clustering by too many wells. The picture here shows wells of one nearby surface location or one platform in some other cases. Well Path Viewer
NEW AVO FEATURES INVEST Forward Model with Q log Inverse Q Filtering Rock Physics Templates AVO Offset Scaling Near/Far AVO Attribute Maps Near/Far Pick Analysis Velocity Model from Time-Velocity Table Zoeppritz Synthetic as an Angle Gather Improved AVO Navigation AVO Equations AVO Fluid Inversion (AFI)
INVEST The original INVEST program is upgraded to include the sparseness constraint of Sacchi and Ulrych (1995, Geophysics). The upgrade adds one more term to Hampsons original objective function for optimization so that the sparse solution may be achieved in tau-p domain. J = |m| p + |Lm – d | 2 The INVEST program is launched from the Process Menu > Filter > INVEST…
INVEST The new menu provides user with selections of sparseness constraints.
INVEST We use the following synthetic as an example to illustrate the effect of sparseness constraint. The synthetic contains two events with separation of 10 ms at far offset.
INVEST The effect of the sparseness constraints is displayed below. No sparseness constraintWith sparseness constraint
INVEST Another example shows separation of two events that are spatially aliased. The radon transform without and with sparseness constraint are displayed in the middle and the right. No sparseness constraint With sparseness constraint
INVEST The left two panels displays the separation of hyperbolic and linear events without sparseness constraint, and on the right with sparseness constraint.
Forward Model with Q Log Loading Q Logs in to Geoview Q logs are loaded like any other log in Geoview. The two predefined types of log are the Qp (p-wave) and Qs (s-wave).
Forward Model with Q Log If you have a Q log loaded into Geoview, the option for choosing Q logs will be available in the modeling window. If you do not have a Q Log then the model will assume a constant Q (depth independent) value for both the Qp and Qs parameters. In this example we have a Qp log but no Qs log. The Qs log option has been deselected and a constant value will be applied to the Qs log. But the Qp log is available and will be calculated as a non constant value in the model. Using Q logs in Elastic Wave Modeling
Forward Model with Q Log Results of using Q logs in Elastic Wave Modeling Q Effect Removed Modeled with Q logs The synthetic on the left included the Qp 1 log for p-wave attenuation, and a constant Qs of 200 for s-wave attenuation. The synthetic on the right is the result of the Remove Q Effect option. Notice that even though the amplitudes between the two synthetic were scaled separately, we were still able to recover the shape of the pulse.
Inverse Q Filtering Inverse Q filter is available in the processing window. You may start Inverse Q Filter module from Process > Filter, the same as other filtering processes.
The inverse Q filter provides options to apply the filter to amplitude only or to phase only or both. When Apply to amplitude is chosen, the amplitude lost due to attenuation will be compensated. When Apply to phase is chosen, the phase change due to dispersion will be compensated. Q information can be selected either as a constant or from an input Q log from a data volume. Inverse Q Filtering
A constant Q model is the most simple Q input. The constant means depth independent (dont be confused with frequency independent Q that is often referred to as constant Q). The provided Q value will be applied to entire input seismic volume.
Q information can be selected from a well. When this is done, the selected Q log will be used for entire seismic volume. Inverse Q Filtering
Q information can also be selected from an input volume in SEG-Y format. This is done in a similar fashion as we select velocity model for NMO. When input volume is selected, user need to specify the Q type: interval/integral. Q in data volume are always in time domain. A 3D Q Model can be built from multiple wells together with horizons (similar to the velocity strata model). This Q Model will appear here as a Data Volume for selection.
Inverse Q Filtering Inverse Q Filter Example Input data is modeling result from the well shown before. Apply inverse Q filter to both amplitude and phase. The modeling result without attenuation.
Inverse Q Filtering Power Spectrum of Inverse Q Filter Example Power spectrum of Input data. After apply inverse Q filter to both amplitude and phase. Power spectrum of the modeling result without attenuation. Attenuation causes decay in high frequency power and distortion of phase. Without attenuation what we should have is the one displayed in the third panel. After apply inverse Q filter, both power lost in high frequency and phase distortion is recovered.
Inverse Q Filtering Apply Inverse Q Filter to Amplitude or Phase Input Applied to amplitude Applied to phase
Inverse Q Filtering Power Spectrum of Inverse Q Filter When Applied to Amplitude or Phase Separately Power spectrum of Input data. After apply inverse Q filter to phase only. Power spectrum of the modeling result without attenuation. When apply inverse Q filter to amplitude only, the filter will recover lost high frequency spectrum but keep the original phase. The slide shows the power spectrum is fully recovered but the shape of pulse is still distort. When apply the filter to phase only, it will remove phase distortion but keep the original power spectrum. The slide shows the power spectrum is the same as the input, but the shape of pulse is nearly zero phase. After apply inverse Q filter to amplitude only.
You can now plot Rock Physics Templates on the AVO Crossplot from both the processing & modelling windows. These templates were described by Erik Odegaard & Per Avseth (Interpretation of Elastic Inversion Results using Rock Physics Templates, presented at the 2003 EAGE meeting). In CE7 you can now create Vp/Vs Ratio Vs Acoustic Impedance Templates for different lithologies (typically shale, shaly sands and clean sands) and depths (pressure). It is also possible to import externally created templates & export existing templates via Hampson-Russells Ascii database file format. Rock Physics Templates
List Existing Templates All created templates for a project are saved in a rock_templates.db in the project shared.dir To import new templates to a project or export existing ones, select Templates/List on the Crossplot window. You dont have to plot Vp/Vs vs AI to bring the template list menu up from a crossplot window. Rock Physics Templates
List Existing Templates To import new templates to a project or export existing ones, select Templates/List on the Crossplot window. You will be offered a file/directory selection box to choose where to read/write to. Rock Physics Templates
List Existing Templates If you Select All Templates, then YES will be selected for both the Brine & HC Trend boxes in the spreadsheet. If you Deselect All Templates then NO will be selected for both the Brine & HC Trend boxes in the spreadsheet. Rock Physics Templates
List Existing Templates You can also select to display the history of a particular template, or delete it from the rock_templates.db file. To do either of these you must make sure a template is selected in the spreadsheet. Rock Physics Templates
List Existing Templates This is the history that is displayed... Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs To create a Vp/Vs versus AI Template, you need to have Vp/Vs & AI logs in your well database. An AI log can be created by selecting Logs/Transforms,and then selecting P- Impedance. A Vp/Vs ratio logs can be created by either using Log/Math or Log/Transforms and selecting AVO Supplemental curves. Once you have created the AI & Vp/Vs logs, launch the Crossplot option from the AVO Modelling window. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs Select to crossplot Vp/Vs Vs. AI… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs Select from the list of wells that contain Vp/Vs and AI logs… Select to plot Vp/Vs ratio Vs P-Impedance Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs Select the default values on the next page… Crossplot from T1 to T3 … Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs Click OK, and when you have the crossplot, select Templates / Create a Vp/Vs Vs AI Template… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs This page appears. We accept the defaults, except we change the name to reflect we will not use Hertz- Mindlin… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs This page appears. We accept the defaults, except we change the input water saturation to 50%… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs This page appears. Select to use the depth at Top T2, and not to use Hertz-Mindlin… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs This page appears. Accept the defaults… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs The List Templates menu appears with both the Brine & HC Trend selected. Just select OK… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Well Logs Here is the plot… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes First, launch the crossplot from the AVO Process Dialog. Vp, Vs, Density volumes were created in Emerge. Then using Trace Math, these volumes were used to create Vp/Vs and Impedance (AI) volumes. In AVO the AI volume must be loaded as an Impedance volume for the Create template for Vp/Vs Vs AI to bring up the template menu. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes Select to plot the VpVs ratio volume on the Y Axis, and the AI volume on the X Axis. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes Then accept the defaults on the next 2 pages. On the final page we have selected to crossplot at a constant time of 3850ms, with a 30ms window centered on the slice. Once the Crossplot window comes up, select to create a VpVs Vs AI template… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes We accept the defaults and change the name to reflect that we are creating this template from Seismic Volumes… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes Input P-wave, Density & S- wave values for the case that we are modeling… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes The input values from the previous page are displayed. For this example we are not using the Hertz-Mindlin option. Hit okay… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes Accept the default values on the next page, because we are modeling a clean sand filled with gas & brine. Hit Okay… Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes The newly created template is now available to be plotted on the Crossplot…. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes The Crossplot with the template drawn…. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes Now create another Vp/Vs Vs AI Template. Input the same values as the previous case on the second page. On the third page select to use Hertz-Mindlin, and enter Water depth and the overpressure at the selected depth. There is an option to select Well Sorted/Poorly Sorted for the Grain Sorting. Depending on which option is selected, will determine which of Dvorkins second order relationships will be used to calculate the Coordination Number, which approximates the number of contacts per grain. On the fourth page accept the default values, and hit Okay. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes The List Available Templates dialog pops up. Select to plot both templates for the Seismic Volume…. Rock Physics Templates
Creating Vp/Vs Vs. AI Templates from Seismic Volumes The rescaled Crossplot with both templates drawn. Rock Physics Templates
AVO Offset Scaling: Analysis The main interface for the functionality is based around the menu below. The menu has four parts: 1)Trace Analysis Range 2)Time Analysis Range 3)Background Analysis (numeric) 4)Background Analysis (graphical)
Analysis: Trace Range The range of traces can be selected using this portion of the menu dialogue. Offset and Azimuthal restrictions of those traces being included can be set.
Analysis: Time Range As well as setting the trace range the time range can also be set. Within this area an exclusion based on a picked event can be made. This allows users to customise the analysis based on the response from specific geology.
Analysis: Numeric Display A number of different options exist for use. Amplitude analysis can be based on RMS, Absolute or Geometric means. The results of the regression line fitted to the amplitudes against offset are displayed. History files and QC parameter operations are available. Options for the application of the scaling is controlled from here. Including the initialisation of the analysis and its application to the target volume. Compression controls the extent to which the scaling is used. A value of zero applies the scaling fully. If it is set to 1 there is no effect.
Analysis: Graphical Display The display options dialogue for graphical display are launched from the previous display. They include displaying the data with sin 2 θ along the X-axis rather than offset, as would be used in AVO analysis. A plot of the amplitudes against offset is the final part of the analysis window.
Once the analysis has been completed and the user is satisfied with what has been calculated for the gathers they can be applied to the data. This happens on the fly and the volume is held in memory. The new volume has the background amplitude trend removed showing clearly any AVO anomalies. Apply Scaling
AVO Offset Scaling: Application Once the parameters are decided and the user is happy with the recovered anomaly, the scaling can be applied to the dataset and a segy file created. The benefits of AVO Offset scaling are: nCan correct for anomalous background trend. nCan match data closely to a modeled synthetic. nCompression factor close to 0 has greatest effect.
AVO Offset Scaling – An Application One practical application of the AVO Offset scaling functionality is in combination with the EMERGE software. Often a well will lie outside of the the seismic volume and thus it cannot be used in the EMERGE training process, and hence attribute prediction. AVO Offset Scaling overcomes this by allowing a synthetic to be created at the well location that has comparable amplitudes to those of the seismic volume. The following slides give a brief out line of the process.
Within AVO a 3D synthetic model is built using the well data and a correct wavelet. As the wavelet and reflectivity vary between 1 and –1. The synthetic amplitudes will not be comparable to the seismic. Create a 3D synthetic
The user analyses the amplitudes of the real gather, then applies the scaling to the synthetic gathers boosting them to equivalent values. Scale the data…
Intermediate traces and wells can be exported from the synthetic volume Training is carried out on the wells and seismic, other Pre-stack attributes can be used as well, such A and B volumes. Carry out the EMERGE analysis…
Once a good relationship has been derived the transform is applied to the real seismic and a volume of the target property is created. And apply the transform.
Near/Far AVO Attribute Maps A new feature in this release is Near/Far Range AVO Attribute Maps. To launch this option, click on AVO Attribute Map off the AVO Attribute button. The first page is the same as before and used to select the horizons.
Near/Far AVO Attribute Maps The second page has changed. Select Near/Far Range. Then, hit the Next>> button at the bottom of the page.
Near/Far AVO Attribute Maps This page will next be displayed. By default the near & far range offsets will be the first & last third of offsets for the volume. The values for the offsets are restricted to the range of offsets in the associated seismic volume. Check the maps you want to produce.
Near/Far AVO Attribute Maps The maps are then displayed.
Near/Far Pick Analysis A new feature in this release is Near/Far Range Pick Analysis. To start this option, select Pick Analysis… off the AVO Analysis button as usual.
Near/Far Pick Analysis An additional plot type has been added, called Show Normalized, Smoothed or Near/Far Range Analysis Only. Select this option and then the Next>> button.
Near/Far Pick Analysis The horizon page is unchanged. Select one or more horizons. Then select the Next>> button.
Near/Far Pick Analysis The menu on the right shows the complete Pick Attribute Option Menu.
Near/Far Pick Analysis The available options for Near/Far Range Analysis are shown in the pull down menu on the right. By default the near and far range offsets will be the first and last third of the offsets for the volume.
Near/Far Pick Analysis This is the plot if you select Average for Near and Far.
Near/Far Pick Analysis Going back to the Pick Attribute Option Menu, select the option shown here to apply a triangular filter to picks in CDP and/or Trace directions. Here are the resultant picks.
Near/Far Pick Analysis If you select smoothing of 1 in CDP and Trace directions, the smoothed picks match the raw picks. This is shown here.
Near/Far Pick Analysis Selecting RMS analysis with no exclusion will normalize picks to a background calculated on a trace-by-trace basis for a time window. The result is below:
Near/Far Pick Analysis Selecting RMS analysis with exclusion will normalize picks to a background calculated on a trace-by-trace basis for a time window relative to a horizon with possible exclusion. This is shown below:
Velocity Model from Time-Velocity Table Now, rather than always relying on well logs to build the initial model, you can create the model using a time- velocity table. You can either manually enter the Time- Velocity pairs into a table or you can import the Time- Velocity file directly.
Velocity Model from Time-Velocity Table Click the Enter Table button to display the T-V Entry Menu. You can either manually enter the TV table here or you can import the TV Table by clicking on the Control button…
Velocity Model from Time-Velocity Table If you choose to import the TV table, you must specify the format of the file that is being entered and its contents (e.g.., interval or RMS velocity).
You can now create a Zoeppritz or Aki-Richards synthetic as an offset or angle. Both methods are dependent on the synthetics use of ray-tracing to calculate incidence angles or degrees. The synthetic uses the Zoeppritz or Aki-Richards equations to calculate amplitudes within a defined target zone. For all interfaces outside the target zone, the zero-offset reflection coefficient will be used. Only the primary reflection events will be modeled. Zoeppritz Synthetic as an Angle Gather
The resulting Angle Gather synthetic has all the available options you are use to having with the traditional Offset synthetic.
Several changes have been made to improve navigation through data for AVO. These items allow the user to select behavior for the horizontal scroll bars, and action on double click. There is now an AVO Navigation items dialog, that is launched from the View menu on the AVO Dialog. Improved AVO Navigation
This menu allows the user to set preferences on Navigation for all Seismic Dialogs. The first section relates to control of the Horizontal Scrollbar. The second section allows the user to specify the action on Double Click when the user has selected to tie all options for all windows. Navigation Control Menu
Horizontal Scrollbar Controls The Trace Scroll Arrow Multiplier speeds up the action of the arrow keys on the horizontal scroll bars. The value can be set is limited to between 1 & The default value is 1. It is a relative change. The action of the Horizontal Scroll Arrow is this many times faster. You must hit the OK button for your selections to take effect.
Pre-Stack Scroll Drag If you are dragging the scroll bar over a Seismic Dialog displaying pre-stack data, and then release it, then the pre-stack gather can either be displayed from any trace within the gather (calculated from the position on the scroll bar), or it will always display at the first trace in the gather. An example is shown on the following slide.
Pre-Stack Scroll Drag As an example we will consider we have 2 tied Seismic Windows: one pre- stack, the other post-stack, and the horizontal scroll bars are tied. First set the navigation items as shown, and select the Prestack Scroll Drag to Display from the first trace in the gather, then hit OK on the Navigation Control Menu. Then drag the scrollbar in the stack window. In this example we are selecting to display trace
Pre-Stack Scroll Drag The window displaying the stack data, now has trace 17 as the left most trace. The window displaying the pre- stack data, will have gather 17 on the left hand side of the window, starting from the first trace in the gather.
Tie Scroll Option First set the navigation items as shown, and select the Tie Scroll Option to be tied to the trace in the center of the view. Then hit the OK button on the Navigation Control Menu.
Tie Scroll Behavior If the user selects to display trace 34 to 61 in the stack window. Then the trace at the center of this window is trace 47. Gather 47 is displayed at the center of the prestack window. Note that if you are dragging the scrollbar in a prestack window, and have a tied stack window, then the stack window will only update if the trace corresponding to the center gather of the prestack window, is not in the middle third of the stack window display. This is done to minimize unnecessary redisplay of the stack section. Stack Window Prestack Window
Double Click Behavior Options There is a new option to change the behavior when the user Double Clicks in a window displaying data in either Inline or Xline mode, and has selected Tie/Tie all Windows/All of the above/Tie. This is still the default behavior, but you can now select not to switch from inline to xline or xline to inline when you double click. First of all we will look at the default behavior. Select Switch Inline/Xline on Double Click Previously, if you double click in a window displaying an inline, it would switch to displaying a xline and vice versa. This will also occur in all visible windows.
Double Click Behavior For example in the window displaying stack data where I am displaying inline 21, double click on the trace 87. After the double click, the stack window displays Xline 87 with inline 21 in the view. In the pre-stack window gather 21 is displayed as the first gather in the window. It is displayed from the first trace in the gather.
Double Click Behavior In the Navigation Control Menu select Scroll to click Inline/Xline for all tied windows and hit Okay on the menu. Now double click on the Stack window at Xline 87. There will be no change to this window. The Pre-Stack window window will still display Inline 21, but Xline 87 gather will be displayed on the left hand side of the window starting from the first trace in the gather.
165 Instant reference to all of the commonly used AVO Equations is now available under the Help menu. This is a helpful feature for those cases when you forget what the Fluid Factor is or why you need the background Vs equation for Rp \ Rs attribute extraction. AVO Equations
AFI is an add-on to the existing AVO analysis program. AVO Fluid Inversion (AFI) In addition to all the functionality currently contained in AVO, a series of extra options allow you to investigate the uncertainty in AVO analysis.
The purpose of AFI is summarized in the figure below. AVO Fluid Inversion (AFI) AFI converts AVO attribute maps, such as Intercept and Gradient into Fluid Probability Maps. It does this using a stochastic model generated by Monte Carlo simulation.
At the heart of the AFI analysis is a 3-layer model with sand enclosed by shales. All the parameters for sand and shales are specified as probability distributions. AVO Fluid Inversion (AFI)
The probability distributions are determined by analyzing trends from well logs in the area. AVO Fluid Inversion (AFI)
Using the defined probability distributions, Monte Carlo simulation is used to predict the range of responses expected for various fluids (brine, oil, or gas) at different levels. AVO Fluid Inversion (AFI)
After calibrating the real and synthetic data values, we can overlay the measured response from the real data slices at various locations. Using Bayes theorem, we can calculate the probability that each of these points is associated with each of the fluids. AVO Fluid Inversion (AFI)
Finally, we can calculate maps showing the most likely fluid, as well as the probability of each fluid type. AVO Fluid Inversion (AFI)
NEW eLOG FEATURES Set Global Log Plot Amplitude Range New Log Transforms Frequency Filter Logs Pick Horizons in eLog Window
Set Global Log Plot Amplitude Range The degree of flexibility built into the users control of the visual preferences in the software have been enhanced in CE7. The general view parameters menu has had a number of options added. This includes setting the log plot amplitudes for all types, or only selected ones to particular wells. These options can also be reset to the original defaults.
A table is available to set the plot ranges for all log types and apply them to specific wells. The table can also be saved and reloaded into new projects as required to save the users desired view. Set Global Log Plot Amplitude Range Preferences for these settings can now be saved in the GEOVIEW database.
176 New Log Transforms have been added to the eLog menu. These are: LMR, PS Elastic Impedance, S-Impedance, and Vp/Vs Ratio. As with all of the log transforms, you can create the new logs for a list of wells in the database (as long as the wells contain the requisite input logs). New Log Transforms
The LMR logs transforms creates both a Lambda-Rho and a Mu-Rho log. This requires that the well has a P-wave, S-wave and a density log. The basic theory of LMR can be expressed in the following equations: Lambda-Rho logs are sensitive to the pore fluids and Mu-Rho logs are good lithology indicators. Cross-plotting the two logs can guide you later when you crossplot the seismic LMR volumes. New Log Transform: LMR
Shear wave impedance logs can now be generated quickly using the S-Impedance log transform. This transform yields the product of the shear wave log and the density log. As with all of the log transforms, you can create the new logs for a list of wells in the database (as long as the wells contain the requisite input logs). New Log Transform: S-Impedance
The PS Elastic Impedance log transform creates elastic impedance logs following the method described by Duffaut (November 2000) in The Leading Edge paper entitledShear-wave Elastic Impedance. New Log Transform: PS Elastic Impedance
Vp/Vs Ratio logs can be generated either by using the P-wave and S-wave logs or by using the depth-time curves. New Log Transform: Vp/Vs Ratio
Filtering logs similar to a frequency-based bandpass filtering scheme is now available in eLog and Log Modeling windows as a Logs Maths option. This option can be applied to all of the logs in all of the wells in your database simultaneously. Well Logs Frequency Filter
This option can be applied to all of the logs in all of the wells in your database simultaneously. Well Logs Frequency Filter
On the Filter Parameters menu, enter the bandpass frequencies for the filter to be applied. Note that removing the DC-component can give you strange results – in general you want to keep the default low cut/pass frequencies at 0 Hz. Well Logs Frequency Filter
Overlaying the filtered logs with the original logs provides an illustration of the filtering effect – the blue curves have been frequency filtered. Well Logs Frequency Filter
You can now easily pick horizons within the eLog log window… Horizon Picking in eLog
Launching the horizon picking menu can be done from either the top menu bar or from the side bar menu… Horizon Picking in eLog
The Horizon Picking interface in eLog is the same as in the seismic window in the previous Hampson-Russell releases… Horizon Picking in eLog
All of the associated Horizon options are also available in the eLog window. Horizon Picking in eLog
Export Prediction Errors with Locations Export Prediction Error Logs to Geoview Read Wells Interface Change Double-click on Lists Shift Tops with Logs NEW EMERGE FEATURES
190 The prediction errors at well locations can now be exported into a file that contains the X and Y coordinates. This file can then be imported into ISMap and gridded to create a kriged error map for example. Export Prediction Error to ASCII File with X & Y Locations
Export Difference Logs to Database The difference between the actual log and the predicted logs can now be exported back into the well in the Geoview database. This makes it easier for you to compare the difference log with the actual logs or the seismic and may help determine the cause of the poor prediction.
Read Wells Interface Change The option Read From Database opens up the menu where you can specify the type of prediction to perform:
Double-click on Lists By double clicking the well name in the All wells in database list, this will appear in the Use these wells list. This functionality works also vice versa, and is implemented for all the lists in Emerge.
Shift Tops With Logs Now, when you shift the target logs, EMERGE will also shift your tops accordingly.
ISMap Map Utilities Map Maths Cross Plot Maps NEW ISMAP FEATURES
In this release of ISMap, we have added an ISMap Map Utilities option, which contains a number of sub-features. As shown below, this option is initiated by clicking on the Edit / ISMap Utilities menu item. The new features include Single Map, Dual Maps, Map Maths, and Cross Plot Maps. The Single Map and Dual Maps options are simply the existing options for working with single or dual maps, and have be largely replaced by the Map Maths option. ISMap Map Utilities
The first menu allows us to select the maps with which to work. We can choose as many as we want, from as many different sessions. At the right, we have chosen to work with two maps created in the last guide exercise. Let us now see an example of this new feature, by selecting the Map Maths menu item. Map Maths
The next menu allows us to tell the program whether the created map will be for a new input session or an output map. We can also name the map. In this case, we have chosen to create an output map called Absolute Difference. Map Maths
The next menu allows us to rename the maps for simplicity, since they become variables in the math calculations. In this case our maps are: RBFN Porosity and Multilinear Porosity. Map Maths
The next menu allows us to create the actual mathematical expression. Notice on the left that we are creating a new map which is the absolute value of the difference between the two maps input to the process. Map Maths
Here is the final map on the right. The purple areas show the regions of largest absolute difference. Map Maths
Next, we will click on the Edit / ISMap Utilities menu item and select the Cross Plot Maps option, as shown below. Cross Plot Maps
In the next menu, we will choose the same two maps as in our previous example, the RBFN porosity map and the multilinear porosity map. Cross Plot Maps
Here is the crossplot of the RBFN porosity map (horizontal axis) against the multilinear porosity map (vertical axis). Cross Plot Maps
Multi-2D Line Inversions Improved Coloured Inversion LMR Seismic Transform Model-building with Time-Velocity Tables Default to a Smooth Initial Model Frequency Domain Merge NEW STRATA FEATURES
Only one seismic dataset may be opened, so it is necessary to copy all the seismic lines - with one.sgy file per 2D line - into a single directory before starting STRATA. During the opening process, a sub-group of lines may be selected. Multi-2D Line Inversions
Select the option to load multiple 2D lines as a single 3D volume. Multi-2D Line Inversions
2D traces will be identified by XYs in the trace headers. If lines are originally extracted from a 3D volume, inline- crossline numbers may be used. XY Coordinates are used in this example. Multi-2D Line Inversions
The best geometry for the enclosing 3D grid and 2D data will need to be determined. (The grid is primarily used for the 3D initial model and does affect the seismic in the 2D lines) The number of crosslines must be entered before the number of inlines. Multi-2D Line Inversions
The down arrow will provide access to all the 2D lines in the project. If the seismic is not displayed correctly, select sequential as the access mode from the eyeball icon. Shot point numbers are shown Multi-2D Line Inversions
Display the basemap …. and then display the fold (View > Show Fold ) in order to reveal the 2D lines. Multi-2D Line Inversions
When changing lines during horizon picking, the previously picked horizon is shown at the intersection. Multi-2D Line Inversions
eLOG will search the 2D dataset for the closest line and has the ability to merge traces from different lines together to generate the composite trace. Multi-2D Line Inversions
To extract a wavelet from all the combined lines, start the wavelet extraction option from the Sidebar of the original multiple 2D data volume window. Select Process All Sub Volumes Multi-2D Line Inversions
All 2D lines can be inverted at the same time using the same 3D model. Multi-2D Line Inversions
The Coloured Inversion has been up-dated and improved and allows much more flexibility in the parameter selection. Projects can now have multiple operators which may be used in different inversion runs. The low frequency component from the initial model can now be added to the high-frequency coloured inversion to yield the full geological spectrum. Improved Colour Inversion
Click on the Run Spectral Analysis and Create Inversion Operator to create a new Coloured Inversion operator. Improved Colour Inversion
The individual wells in the AI log-frequency crossplot can now be highlighted. As well, the user is now able to modify the regression line in this crossplot. Improved Colour Inversion
The seismic frequency spectrum has two parameters that allow modification: the Frequency Smoother and the Spectrum Threshold. The Frequency Smoother applies a high-pass filter to the seismic data and creates a smoother inversion operator. The Spectrum Threshold controls the threshold for computing the inversion operator: a threshold near 0 % may yield a better operator – but also becomes unstable if some of the frequency components are 0 or near-zero amplitude.
Improved Colour Inversion The operator frequency spectrum can be modified by adjusting the minimum and maximum frequencies. Filtering the operator can remove spikes at the spectrum extremes that may be due to near-zero seismic frequency content.
Improved Colour Inversion The time response of the inversion operator can be modified by adjusting the operator length and the taper length.
Improved Colour Inversion When you are satisfied with the operator, click OK on the Spectral Analysis window. This action will prompt you to name the operator and save it to the project. You can create as many operators as you want and selectively use the operator you want to apply.
LMR Seismic Transform The Lambda-Mu-Rho (LMR) Transforms are now a fully automatic process in Strata. Formerly, the user had to create the Lambda-Rho and the Mu- Rho volumes by using Trace Maths. This could a tricky task if you havent written an AVO Ph.D. dissertation in recent years and you were a bit rusty on the latest theory. Weve simplified it now so that all you need to do is push a few buttons.
LMR Seismic Transform A few things are needed to create the LMR volumes: (1) a P-Impedance volume, (2) the S-Impedance volume and (3) the output volume name are specified on the first menu…
LMR Seismic Transform And (4) the constant c for the Lambda-Rho volume is specified on the second menu. For a description of the significance of the constant c, please refer to Russell et al.,Fluid-property discrimination with AVO: A Biot-Gassmann perspective, Geophysics, Jan 2003, 68, 1, p
LMR Seismic Transform After entering these values, click OK and system automatically generates the corresponding Lambda-Rho and Mu-Rho volumes.
LMR Seismic Transform Complete the LMR process by cross-plotting the two attribute volumes, define and project the zones onto the seismic volume.
Model-building with Time-Velocity Tables Now, rather than always relying on well logs to build the initial model, you can create the model using a time-velocity table. You can either manually enter the Time-Velocity pairs into a table or you can import the Time-Velocity file directly.
Model-building with Time-Velocity Tables Click the Enter Table button to display the T-V Entry Menu. You can either manually enter the TV table here or you can import the TV Table by clicking on the Control button…
Model-building with Time-Velocity Tables If you choose to import the TV table, you must specify the format of the file that is being entered and its contents (e.g.., interval or RMS velocity).
Default to Low Frequency Model By default, Strata now automatically creates a 10 Hz high-cut filtered initial model. You have the options to change this if you wish…
Frequency Domain Merge With the new Frequency Domain Merge option you have the ability to combine two volumes of different frequencies into one new volume. An example of when to use this option would be, if you had an inversion result you wanted to combine with a filtered log model.
Frequency Domain Merge On the second page of the process you will need to specify the frequency range that overlaps between the two data sets, along with a taper length. Once this is completed the software will run the Frequency Domain Merge and create a new volume for you.
Data Management & Super Volumes Volumetric Analysis Improved Time Variant Time-Shift Applications Calibration Enhancements Zones Import NEW PRO4D FEATURES
"Super volume" for easy grouping of complex 4D data New Super Volume can be defined Sub-volumes can be drag and drop to Super Volume folder One of the sub volume can be nominated as base reference 4D Super Volume Data Management: Super Volume Concept
Viewing Super Volumes "Super volume" for easy viewing of complex 4D data Surveys can be accessed by user- defined aliases Easy switching from one survey to another Automatically display the difference of selected monitor and base surveys
Processing Super Volumes "Super volume" for efficient processing of complex 4D data Multiple surveys can be calibrated simultaneously
Utilizing Super Volumes in Interpretation Allow interpretation on multiple data volumes simultaneously User provides a single Horizon Name and the software internally keeps track of this horizon interpreted on multiple datasets.
239 Information regarding reservoir thickness, reservoir area, porosity, fluid saturation, and FVF must be provided 4D anomaly maps highlight areas of the reservoir that have been changed by production Calculating volumes for only the 4D anomaly areas converts the maps to an estimate of reservoir volume that has been affected by the production process Volumetrics Analysis
For a large number of scenarios, probabilistic volumetric estimates can be displayed in histogram form. Volumetrics Analysis
If there is uncertainty in more than one variable, crossplots can be made to assess the combinations of parameters that give the most probable results. Volumetrics Analysis
Time variant time-shift applications using conditioned time- shift cube or data slices. Cross-correlation cube or data slice/s can be used to weight trustworthiness of time shifts Thresholds to limit valid time shift range Median filter and Smoothing of time shifts Improved Time Variant Time-Shift Applications
Allow design window to follow horizon. Added to: Shaping Filter Phase and Time Matching Calibration Enhancements
User-defined zones for processing and parameter estimation Calibration Enhancements
Applying zones in Shaping Filter design Calibration Enhancements
Zones can be imported from ASCII file. Zones Import
NEW PROMC FEATURES Improved Data Loading Improved Domain Conversion Data Calibration Instant Calibration Wavelet Equalization Trace Mixing and View Ties
Add amplitude units for input SEG-Y velocity volumes Add depth units for input SEG-Y volumes in depth Geometry page completely re-done For 2D lines loaded as 3D set xline and inline spacing to the same value – it prevents problems with rebinning and some other options Data Loading
- Added SS Time. Display Domain Domain Conversion - In Velocity Volumes option allow use of P, S and PS velocities; the user needs to specify 2 of any kind. Domain Conversion
Changed menu layout Add shaping filter and cross-normalization New Data Calibrations
Changed menu layout Instant Calibration contains : Bandpass filter and phase shift Time shift Wavelet equalization (NEW) Polarity reversal Instant Calibration
Wavelet equalization process : 1.Wavelets are extracted from both seismic volumes (input and reference) according to supplied parameters : time range, trace range, wavelet length, taper and phase 2.Extracted wavelets are added to project wavelet storage using supplied name 3.Wiener-Levinson algorithm is used to calculate transfer filter from input wavelet to reference wavelet 4.The filter is stored in memory, and then it is applied to each retrieved trace from input seismic volume. It means that all displayed traces and traces used for processing will have the filter applied 5.The user may turn off the filter just by unchecking Wavelet Equalization box in Instant Calibration menu Wavelet Equalization
- Add Trace Mix to Utilities sub-menu Process View - Add Horizontal and Vertical Scale tie for seismic views Trace Mixing and View Ties
Read / Calculate V0 from Geometry GLI3D Help Documentation Linux version Load Control Points from ASCII file Save Control Points to ASCII file Export Tomography Models NEW GLI3D FEATURES
The variable V0 can now be directly read in or calculated from the geometry file. Earlier, you defined the near surface velocity at each control point while building the initial guess model. Often, this velocity was simply set to a constant value, although it was possible to set a different value at each control point. Beginning with this version, the V0 at each shotpoint may be entered as an additional parameter on the SHOT lines of the geometry file. Alternatively, V0 may be calculated at each shotpoint as Shot Depth / Uphole Time, provided that these parameters are defined in the SHOT line. V0 From Geometry File
The Help menu has been expanded to permit access to the user manual, the theory, and the tutorial. These documents can be opened with the Adobe Reader, which is launched automatically when you click on one of the options on this menu. GLI3D Help Documentation
GLI3D is now compiled for the Linux operating system and you are able to run the software on any Linux release based on the 2.4 kernel. Linux Version
When creating an initial model, you can still pick refractors on a Time vs. Offset plot to define layer velocity and thickness, but you now have the ability to load control points from an ASCII file. Load Control Points From ASCII
After a model has been created, you can also save your control point definitions to an ASCII file. Save Control Points To ASCII
After running a tomographic inversion, you can save the resulting grid model as a SEGY format depth file. The grid cells can have arbitrary dimensions, defaulting to the cell size used in the inversion. Export Tomographic Models to SEGY
Release on Linux Platform. Added OpenSpirit link to ProMC and AVO. Cursor broadcast to OpenWorks/Seisworks via OpenSpirit Gateway for non-OpenSpirit volumes. Note: Currently OpenSpirit do not provide this facility to GeoFrame datastores.Cursor broadcast to OpenWorks/Seisworks via OpenSpirit Gateway for non-OpenSpirit volumes. Read horizons from OpenSpirit. Write horizons to OpenSpirit. NEW OPENSPIRIT FEATURES
The OpenSpirit link is now compiled for the Linux operating system and you are able to run the OpenSpirit link on any Linux release based on the 2.4 kernel. OpenSpirit for Linux
OpenSpirit now links to your favorite pre-stack AVO attribute and multi-component interpretation software. (Actually we linked AVO in the CE6R4 release and ProMC in the CE6R5 release – we just never had a good chance to advertised it.) OpenSpirit Links to AVO & ProMC
You need to define a coordinate system to use for the OpenSpirit session. To do this select the OpenSpirit session, and select to edit it. Cursor Broadcast to SeisWorks from non-OpenSpirit Volumes
Select the Coordinate System Tab. You can either select the project set preferences (if defined), or select from one of the projects. Cursor Broadcast to SeisWorks from non-OpenSpirit Volumes
Now select the OpenSpirit session in Hampson-Russell by clicking on the OpenSpirit icon. Select the OpenSpirit session. Cursor Broadcast to SeisWorks from non-OpenSpirit Volumes
Now select the Broadcast cursor location to OpenSpirit icon. A notice will popup up informing you of the selected coordinate system. Select OK…. Cursor Broadcast to SeisWorks from non-OpenSpirit Volumes
See the cursor location broadcast to OpenSpirit… Cursor Broadcast to SeisWorks from non-OpenSpirit Volumes
You can now import horizons from OpenSpirit. If you dont have an OpenSpirit volume currently open or have not already selected an OpenSpirit session, first press the OpenSpirit icon on the top right hand side of the window The OpenSpirit Session menu will then come up. Select the appropriate OpenSpirit session…. OpenSpirit Read Horizons
From the seismic window select to import horizons from OpenSpirit. The back end datastore will be queried, for the available horizons. OpenSpirit Read Horizons
The list of available horizons will appear, with relevant information. Select to import an horizon. The color of the horizon can also be changed. It is most important that the correct volume for geometry is selected. Only picks with inline, xline values matching the selected seismic geometry will be imported. OpenSpirit Read Horizons
A popup notifies the user of the number of null & non-null picks inserted. OpenSpirit Read Horizons
You can now export horizons from OpenSpirit. If you dont have an OpenSpirit volume currently open or have not already selected an OpenSpirit session, first press the OpenSpirit icon on the top right hand side of the window. The OpenSpirit Session menu will then come up. Select the appropriate OpenSpirit session…. OpenSpirit Write Horizons
From the Seismic Dialog select to export horizons to OpenSpirit… OpenSpirit Write Horizons
Select to export the horizon, by changing the default selection from No to Yes. The Domain is Unspecified because this is a SeisWorks DataStore. The picks are exported via inline/xline, OpenSpirit Write Horizons
If the horizon already exists of this name in the project, it will request permission to overwrite. It will then tell you how many null & non-null picks were written. OpenSpirit Write Horizons