CE8 New Features - CGG · 2 CE8 New Features. General: Insert Multiple Log Curves, Help Assistant,...

CE8 New Features

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CE8 New Features

General:General: Insert Multiple Log Curves, Help Assistant, Map Contouring, Seismic Datum, Improved Annotations, Improved Horizon Picking, Cross Plot Archives, Cross Plot Zone Editing, Cross Plot Regression Error, Convolution, Base Map CGM Hardcopy, EBCIDIC Header Editor, Deviated Well Projection on Arbitrary Lines, Improved Seismic Window Data Menu, Empty Bin Trace Padding, Improved “Set Current Wavelet”.

GeoViewGeoView:: Importing Culture Data, Base Map Screen Captures, Minimum Curvature Well Path Calculation, Well Curve Cross Section, Interactive Top Picking, Location Well Posting, Well & Log History,Importing Tops for Multiple Wells, Improved Well Log Exchange.

eLog:eLog: Log Display Templates, Log Color Fill, Seismic in Color, Computed Vp/Vs and LMR logs, Crossplot Zones as a Curve, Remove Time-Shift in Wavelet Extraction, Synthetic Correlation QC, Improved Multi-Well Analysis, Well and Log History, View Selected Log Markers.

AVO:AVO: Three-Phase FRM, Output Synthetic Reflectivity, Color Angle Displays, Improved Pick Analysis, Depth Processing, Depth Synthetics.

STRATA:STRATA: Angle Gathers, Pre-stack Inversion, Improved Multi-2D Line Handling, Improved Inversion Analysis.

EMERGE:EMERGE: X &Y’s as Internal Attributes, Single Attribute Identity Transforms, RBF clustering.

ISMap:ISMap: EMERGE Analysis link, Annotated contouring.

Pro4D:Pro4D: Three-Phase FRM and Systematic Changes, Heavy Oil Bubble Point Equation, Zero-Phase Shaping Filter, Zone-Based Cross Normalization, Time-Variant Time Shift Thresholds, Improved Arbitrary Lines, Auto-Calibration Toolkit.

ProMC:ProMC: Multi-2D, Velocity Earth Models, Domain Conversion using Models, Simultaneous Inversion.

GLI3D:GLI3D: Importing External Tomographic Grid Models, Improved User Guide 3D, Miscellaneous

New Programs:New Programs: SeisLoader, 64-bit Seismic Data Loader. View3D, for 3D visualization.

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Overlay multiple log types on seismic for each well.

GENERAL:Insert Multiple Log Curves

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GENERAL:HR Help Assistant

Window Help buttons are mapped to the correct section in the document. Users can easily read all documents, including theory, from one location and can search for terms or through an index with more than 500 entries.

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Maps can now be contoured. The Map View parameters menu is also improved to allow you to change the contouring parameters.

GENERAL:Map Contouring

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Datum elevation can now be specified. Selected depth-time curves can be adjusted to map the seismic datum to time zero or to apply datum correction using specified first internal velocities

GENERAL:Seismic Datum

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GENERAL:Improved Trace & Time Annotations

Annotation options in View -> Parameters are significantly improved. You can now specify the labeling increment.

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Improved horizon picking capability. For both manual and automatic picking the search distance (ms) maximum for snap point (e.g. snap to peak) can be different above and below the hand picked position. i.e. search distance – and + can be different values. Previously the search had to be the same – and +.

GENERAL:Improved Horizon Picking

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GENERAL:Cross-plot ArchivesZones created on cross plots can be saved and loaded in the project. Archives show listings of all cross-plots.

Zones can be filtered by name.

Cross-plots can also be accessed via the Data Explorer.

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GENERAL:Cross Plot Zone Editing

Adjust Zone Nodes

Edit size and shape of Cross Plot Zones.

(Feature added in CE7R4)

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GENERAL:Cross Plot Regression Line Errors

Regression Lines are now plotted with the Normalized Standard Error also included. The Standard Error is calculated in a vertical or horizontal sense depending on the regression slope being greater than or less than 1 and then divided by the data range to yield the Normalized Standard Error.

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Convolution is now available as a process for your seismic data. This can be done on the whole data or specific areas. Uses include convolving a reflectivity volume with a wavelet to produce a synthetic volume or applying a shaping filter to a seismic volume to change the waveform characteristics.

GENERAL:Convolution Process

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Base Maps can be printed out with titles, annotations and a variety of display options.

GENERAL:Base Map CGM Hardcopy

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GENERAL:EBCIDIC Header Editor

EBCIDIC header data can be modified with the new edit options.

First, display the History of the file you want to edit….select your seismic volume from the list and click Edit EBCDIC HeaderEdit EBCDIC Header

Type your changes and save.

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Deviated wells can now be correctly projected onto operator-selected arbitrary lines. This projection is now more reliable and can be used to compare volumes with wells in any direction.

GENERAL: Deviated Well Projection on Arbitrary Line

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In the Seismic Window Data Menu, if you choose Delete, then the data is just deleted from your current view and the list. In previous versions the data was immediately deleted from the project. The new menu makes this a safer option.

GENERAL: Improved Seismic Window Data Menu

Now, in order to permanently delete a volume from the project, you must do it from the Data Explorer menu.

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GENERAL: Empty Bin Trace Padding

Volumes with trace gaps were previously always loaded with gaps being removed from display, as to the left.

Traces can now be padded so holes in the data are clear. This is the option of padding between existing bins.

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The trace padding option is in Seismic View Parameters on the Plot tab.

GENERAL: Empty Bin Trace Padding

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The menu for the Set Set Current WaveletCurrent Wavelet has been improved. Now you can quickly view the wavelets in both time and frequency domain – and compare multiple wavelets.

GENERAL: Improved “Set Current Wavelet”

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You will be able to import drawing files and display them on base maps. The files can be in either AutoCAD DXF or the Tobin TDRBM II format.

GEOVIEW:Importing & Displaying Culture Data

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GEOVIEW:Base Map Screen Captures

The Geoview Base Map can be saved as a JPEG file or saved to thecomputer clipboard.

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In CE7 the well paths for deviated wells that have a dip/azimuth survey are calculated using the Tangential method. In CE8 a more realistic method of calculating well path deviations is implemented using the Minimum Curvature Method.

GEOVIEW:Minimum Curvature Well Paths

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New Curve View in Well Explorer.

GEOVIEW:Well Curve Cross Section


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GEOVIEW:Well Curve Cross SectionMultiple logs can be plotted in cross section. You can check changing attribute values or top depths between wells.


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GEOVIEW:Interactive Top PickingLog Tops can be picked interactively in the Curve View.


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GEOVIEW:Location Well Posting

Well locations can be easily loaded from file. Multiple well spots can be loaded from one file. This is useful for map views when you are missing the well logs.

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Processing history on logs can be viewed and edited.

GEOVIEW:Well and Log History

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Multiple tops can be loaded for multiple wells simultaneously. The top file just needs an additional column with well name information. This will save a lot of time if you have a large number of wells to load with the same geological tops.

GEOVIEW:Importing Tops For Multiple Wells

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GEOVIEW:Well Exchange / OpenWorks

Connection to OpenWorksR2003.12 (Emerald City)

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Easier well and curve selection.

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Curve selection can now be individualized for each well.

Well tops selection based on interpreter name.

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One location for log type and unit mapping.

More control over time-depth curves and check shots.

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We now have a facility on export to verify and modify the UWI before writing to the OpenWorks database. Checking is done beforehand to prevent well name and UWI inconsistencies.

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Log name mapping on export allows you to maintain consistency with your database standards.

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Coming soon!

• Well type mapping and well renaming before import to Geoview.

• Log run and version handling during curve import.

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GEOVIEW:Well Exchange / GeoFrame

Coming in the future:

• Well Exchange / GeoFrame will be rewritten with a similar new interface and features as the OpenWorks version. This work will commence in early 2007.

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Log Display Templates will control the log track order and the display parameters, and will be applied every time that you open a well in eLog. The templates can be loaded from other projects. Templates can also be imported and exported as an ASCII file.

ELOG:Log Display Templates

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Improved well log displays and interpretation with color fill.

ELOG:Log Color Fill

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Seismic can also be displayed with color traces as well as wiggles.

ELOG:Seismic in Color

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ELOG:Computed Vp/Vs and LMR Logs

Any time that a well contains a Vs log, the software will automatically compute the Vp/Vs ratio.

The automatic log cross-plots include automatic LMR and Vp/Vs vs AI.

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Attributes saved as zones from cross plots can be loaded as log curves.

ELOG:Computed Cross Plot Zones as a Curve

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ELOG: Remove Time Shift in Wavelet ExtractionThe wavelet can be extracted with the calculated time-shifted removed.

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ELOG:Improved Correlation QCThe wavelet can be phase-scanned, rotated or shifted to the maximum correlation. The cross-correlation window is now highlighted by horizontal yellow lines.

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Multi-well Analysis has been improved in CE8. A new feature is a base map showing the synthetic correlation values.

ELOG:Improved Multi-Well Analysis

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ELOG:Well and Log History

The Well and Log History files are available in eLog from the Display Logs Menu.

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ELOG:View Selected Tops

As a new eLog display parameter, you now have the choice of selecting which log tops (markers) that you want to display on the logs.

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FRM is extended from its previous two-phase capability (brine + hydrocarbon) to three phase (brine + oil + gas) systems.

AVO:Three-Phase FRM

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AVO:Output Synthetic ReflectivityA new option to output the reflectivity series from the AVO synthetic has been added. Now, with the new convolution process, you should be able to quickly generate AVO synthetics with different wavelets.

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AVO:Incident Angle Color Display

Display the angles on gathers as a color attribute overlay. The interval and RMS velocities can also be displayed as a color attribute.

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AVO:Improved Pick Analysis

The Pick Analysis on gathers has been improved to include information about the velocities, and the calculated Intercept (A) and Gradient (B) values.

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The following processing options handle the depth domain seismic:

- AVO Attribute Volume Calculations:

AVO:Depth Processing

- Super Gather

- Angle Gather

- Incident Angles can be shown as a color attribute overlaying depth traces

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AVO synthetics can be generated in the depth domain.

AVO:Synthetic Gathers in Depth

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The calculated AVO depth synthetics can be compared to the depth seismic.

In this example, the depth synthetic gather is displayed in the Panner window beside the depth seismic gathers.

AVO:Synthetic Gathers in Depth

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Strata incorporates some new pre-stack data processes which include generating Angle Gathers. This is in order to support the new Pre-Stack Inversion which uses angle gathers as the input.

STRATA:Angle Gathers

As well, stacking processes are now available in Strata.

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By identifying the wet trend relationships, the general relationship for the Shear Impedance and Density can be written as a combination of the wet rock trend and the difference from the wet trend, Δ, caused by hydrocarbons, i.e.,

The inversion algorithm then solves for the ZP, ΔZS and Δρ variables. By imposing the wet trend relationships, the inversion results are constrained and, by solving for independent variables, the inversion results are stabilized.

The final inversion results are volumes of ZP, ZS and ρ.

Pre-stack Inversion of seismic angle gathers to Acoustic Impedance (Zp), Shear Impedance (Zs) and, optionally, Density is now available.

The Hampson-Russell algorithm makes use of the fact that, in wet rocks, the Zs and Density are related to Zp. For example, the Castagna Mudrock Line and the Gardner Equation are relationships that can be identified from the well logs.

STRATA:Pre-stack Inversion

ρρ Δ++=Δ++=

CP

SCPS

mmZZkkZZ

(Note that this is a simplification of the actual algorithm. A more detailed description can be found in the online Pre-stack Inversion Guide or on the Knowledgebase web-site).

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The well log data are cross-plotted and the background wet trends are identified.

The trend line slopes and intercepts are identified. These coefficients are used in the inversion algorithm.

Deviations from the wet trend lines are possible indicators of hydrocarbons.

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A constant Vp/Vs Ratio is also required.

Pre-whitening values can also be specified for improved stability.Density can be optionally be solved for (i.e., updated) or simply calculated from the background trend.

The plots shown in the previous slide are used to determine the regression coefficients for the main parameter menu.

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ZP

ZS

Density

Pre-stack Inversion has multiple attribute outputs.


Vp/Vs

Synthetic

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In the new Pre-stack Inversion, different wavelets can be used for different angles.

STRATA: Angle-specific Wavelets in Pre-stack Inversion

First, extract the wavelets at different angles –using either Statistical Wavelet extraction or phase-corrected wavelets extracted using the wells.

In the Set Current Wavelet menu, you can then specify which angle the wavelets correspond to.

In the Pre-stack Inversion menu, the list of angle-dependent wavelets will be displayed.

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In CE7 the multi-2D line method was limited by having to create a 3D grid to encompass all of the lines and wells. This usually meant that you had to increase the grid cell size in order to encompass all of the data. In CE8, this limitation is removed by using real xy’s.

STRATA:Improved Multi-2D Line Handling

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Loading the multiple 2D lines requires loading them into a “Grouped Volume”

STRATA:Improved Multi-2D Line Handling

Viewing different 2D lines in the project is facilitated by the selection list at the bottom of the seismic window.

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Inversion Analysis can be done quickly in 1D at the well locations, including for pre-stack inversion. This will help you to decide inversion parameters. Errors are shown graphically down the wells. For pre-stack inversion, the error can be shown for each output attribute type, e.g. P-Impedance, S-Impedance, Density.

STRATA:Improved Inversion Analysis

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Use the location information as an internal attribute in EMERGE training.

EMERGE:X and Y’s as Internal Attributes

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EMERGE:Single Attribute Identity Transforms

A new option when creating Single Attribute Lists, is to only Apply the Identity Transforms to Attributes. This option ranks the results according to which attribute has the best 1-to-1 correlation.

For example, if the target log is P-impedance and your attributes include a number of different seismic inversions, this method will identify which seismic inversion has the closest match to the logs.

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We have added RBF clustering. This is an improvement to the RBF neural network process. In CE7 the RBFN sets up N equations for N input training values. This is very time consuming with a large number of training points due to weights being calculated by inverting an N x N matrix.

Now in CE8 we use RBFN with clustering, which involves computing K cluster centers from our training data, where K << N. The result is much less calculations required. You can specify the number of clusters. Using this technique gives an answer which is still accurate to the full solution but has a fraction of the computation time.

EMERGE:RBF Clustering


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ISMAP: EMERGE Analysis LinkNow you can use EMERGE functions to map with both seismic and well data without leaving ISMap.

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ISMAP: Annotated ContouringSet the contour parameters to contour with or without color overlays.

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PRO4D: 3-Phase Fluid Replacement Modeling

As in AVO, 3-phase FRM will also be incorporated in Pro4D. The Systematic Changes menus will also enable you to selectively alter single fluid saturations and, in 3-phase systems, control the saturation ratios.

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The Fluid Calculator now includes the option for using the Butler EquationButler Equation (Heavy Oil Method) for calculating the bubble point of heavy oils as well as the standard Standing Equation for higher API oil.

PRO4D: Heavy Oil Bubble Point Equation

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The Shaping Filter process used in calibration now includes a ZeroZero--Phase Phase FrequencyFrequency matching option.

The CombinedCombined method will first pass a Full Match shaping filter to shape the phase spectrum and then the Zero-Phase option will be applied after to better match the amplitude spectra.

PRO4D: Zero-phase Shaping Filter

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The Cross-Normalization calibration process can now be restricted to zones.

PRO4D: Zone-Based Cross Normalization

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3D volumes of the cross-correlation coefficients and time shifts between the monitor and the base survey are first computed.

The two volumes are then cross-plotted. A V-shaped polygon zone can be defined on the cross-plot (that is, there is more confidence in time shift values with higher cross-correlation values).

This zone can be used to define the variable time shifts that are applied to calibrate the two data sets.

PRO4D: Time Variant Time Shift Thresholds Based on Cross Plot Zones

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Arbitrary Lines can be cut from all of the seismic surveys at the same time.

This includes Arbitrary Lines along the trajectory of a deviated well.

PRO4D: Improved Arbitrary Lines

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PRO4D: Auto-Calibration ToolkitThe AutoAuto--CalibrationCalibration software is designed to convert 4D attribute maps to estimates of Pressure, Saturation change, contact thickness, etc… Attributes from the synthetic modeling are fed into the EMERGE prediction engine to find a relationship between the production parameter and the 4D attribute. The relationship is applied to the actual 4D anomaly maps to create maps of the production parameter.

First, synthetic seismic modeling is done in Pro4D using Systematic Changes to model the expected changes in the seismic waveform with production. Systematic Changes creates pseudo-3D volumes of synthetics.

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PRO4D: Auto-Calibration Toolkit

Next, the amplitudes of the synthetic traces must be normalized with amplitude of the seismic traces.

Then, the attributes of the 4D difference traces are extracted…

Base Monitor Difference Time delays Normalized amplitude difference

and data slices of the 4D attributes are created.

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PRO4D: Auto-Calibration Toolkit

The EMERGE engine is then used to search for a relationship between the slices of the synthetic 4D seismic attributes and the modeled reservoir production parameter.

The relationship is then applied to the actual 4D anomaly maps to create maps of the reservoir production parameter.

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PRO4D: Waveform Classification

Using a cross-correlation technique, Auto-Calibration can be used to classify areas with a similar seismic waveform.

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Auto-Cal has a Thumbnail ExplorerThumbnail Explorer and ViewerViewer for quick visual reference to maps stored in a Pro4D project.

PRO4D: Thumbnail Explorer and Viewer

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Quick navigation controls for stepping through domain, attributes and averaging methods

Controls for Movie display

Contour display

Auto-Cal has a Enhanced Map Controls Enhanced Map Controls for viewing maps.

PRO4D: Enhanced Map Controls

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Maps in Auto-Cal can be copied into the computer clipboard and pasted into other documents.

PRO4D: Copy Maps to Clipboard

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Maps in the Auto-Cal window can quickly be resized to the same size.

PRO4D: Quickly Resize all Maps

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ProMC now supports processing 2D and multiple 2D lines. This also includes multi-2D velocity models.

PROMC: Multi-2D Line Capability

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ProMC now incorporates Velocity Earth Models based on the StrataStrata approach.

The models use both well log information (depth time curves for P and S logs) and horizon information.

PROMC: Velocity Earth Models

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Building the Velocity Models is done from a new simplified menu.

P- & S-Wave and Density models are built simultaneously. All models are built in PP Time and can easily be modified.Models can be quickly deleted or exported.

All models are built using all the PP Horizons. You can control the method by which the software interpolates between horizons.

PROMC: Velocity Earth Models

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You can use the velocity models for VpVp and VsVs and use them in Domain Conversion and other processes inside ProMC such as simultaneous PP/ PS inversion.

PROMC: Domain Conversion Using Models

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ProMC now includes Simultaneous (Pre-stack) Inversion of PP and PS data.

Pre-stack Inversion in ProMC requires PP and PS volumes and Vp, Vs and Density Models.

Multiple wavelets for different angles and for PP and PS domain are also included.

Simultaneous Inversion is currently limited to only 3D volumes.

PROMC: Simultaneous Inversion

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Simultaneous Inversion requires knowledge of the Zp/Zs and Zp/Density relationships. A log data cross plot is built into the software to facilitate this analysis.

PROMC: Simultaneous Inversion

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GLI3D: Loading an External Tomo Model

Tomographic grid models, in either SEGY or ASCII format, can be imported and used in GLI3D.

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The GLI3D User Guide document has been improved and it now includes a new 3D exercise.

GLI3D: Improved Documentation


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• GLI3D now supports Solaris 10, x86, 32-bit

• Improved logic of the Statics Computation dialog

• A new GLI3D FAQGLI3D FAQ document is available on the Knowledgebase with over 60 questions and answers.

GLI3D: Miscellaneous

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Using SeisLoader means you don’t have to tie up a module licence like AVO for loading data. For Linux and Solaris systems, it is 64-bit compiled so you can easily view your large data volumes. The Windows 64-bit compiled version is still under construction.

One feature is to be able to display three volumes simultaneously in either a vertical window split…

NEW SOFTWARE: SeisLoader

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SeisLoader:Improved Split Views...or in a horizontal split view.

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SeisLoader:SEG-Y Loading QCsNew plots allow QC of traces and headers before loading volumes.

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SeisLoader:Improved View Controls

Easy to access the View display controls: menu bar, side bar or floating menus.

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Import horizons from other projects.

SeisLoader: Import Horizons from Project

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SeisLoader: Split View Horizon PickingWith two views of the same volume, you can pick horizons simultaneously in both Inline and Crossline views.

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SeisLoader: Improved Picks Display

Pick Horizons – with the option to choose to display the picks on the trace center or on the actual amplitudes.

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Faults can be imported in Landmark and GeoQuest Charisma ASCII formats.

SeisLoader: Import Faults

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SeisLoader: Import FaultsFaults can be loaded in time or depth domain.

The software tells you if picks are rejected.

Fault summary

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Imported fault segments and picks will be displayed on seismic sections and…


Image Courtesy of Veritas Marine Surveys

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… on time slices and horizon maps.


Images Courtesy of Veritas Marine Surveys

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Included is a new SEG-Y Header editor. This is very useful if there is some error in your headers. Changes can be made to headers in all or specific traces. Just double-click the byte location to edit.

The EBCIDIC header can also be edited.

SeisLoader: SEG-Y Header Editor

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SeisLoader includes an improved copy process. This includes the ability to combine two volumes together by adding, subtracting or multiplying the attributes together.

SeisLoader: Improved Copy Process

Zones can also be used to define areas not to be copied.

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CDP gather data can be reduced by creating Super Gathers in SeisLoader. You can then take the reduced data volume into the AVO or Strata 32-bit software for further analysis.

SeisLoader: Data Reduction Options

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The SeisLoader Super-Gather process also includes an Alpha Trim option for removing noise spikes in the Super-Gather process.

SeisLoader: Alpha Trim Super-Gathers

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NEW SOFTWARE:View3D

View3D provides 3D data visualization.

For example, a seismic volume can be viewed, sliced and rotated at any angle. Horizons and well logs can also be added to the display.

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View3D: Data selection

The Hampson-Russell project data selection window has two vertical panes.On the left is a Tree View listing all the data in the project available for 3D visualization.

On the right is the list of all the actual data being selected for display in 3D.

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View3D: Many Display optionsDisplay options include Volumes, Slices and Fences.

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View3D: Log CylindersWell logs can be plotted as cylinders with diameters and a color key corresponding to attribute values.

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Exit menuStop movie

Go to end of volume

Go to start of volume Play

through movie

Play through movie in reverse

Go back through movie at high speed

Play through movie at high speed

Move back one slice

Move forward one slice

Current line (or time)

For QC a volume can be viewed a slice at a time as a movie.

View3D: Movie QC

CE8 New Features - CGG · 2 CE8 New Features. General: Insert Multiple Log Curves, Help Assistant,...

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