Midland Valley

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Move2018 is here!

The 2018.1 release of Move includes substantial new features, as well as improvements to the existing functionality and usability.

What's new in Move2018

One of the major additions to the Move2018.1 release is Elliptical Fault Flow: a brand new 2D kinematic algorithm. Client feedback in the last year has led to the addition of a regional tilt (dip) to strata control in the Horizons from Fault tool, plus a more auto-population functionality in the 2D Move-on-Fault toolbox.

The 2018 release also features the brand new Surface with Boundaries tool which allows the user to create kriged surfaces with a user-defined outer boundary extent along with various constraints.

The Fault Analysis module introduces Stochastic modelling of hanging wall and footwall cut-off positions using known data resolution.

Also introduced is the Monte Carlo Stress Inversion in the Fault Response Modelling module and several notable additions to Move Core in terms of imports, exports, and data handling.

Among many other improvements, a common client request was to add the ability to visualize surfaces in Map View in various mesh and colour map styles in a similar way to the 3D View – this has now been implemented in Move2018.

Stress Analysis has been enhanced too via the addition of a number of display options for focal mechanisms.

To download the latest version, log in to your client account and click the 2018 Software and Documentation link.

For full details of all the new tools and functionality in Move2018, download the latest Release Notes.

What's new in Move2018

Move - the core application

The GIS vector data live stage connection allows users to work with Shapefiles within Move, whilst simultaneously editing the data in other applications such as those belonging to Esri ArcGis platform. When Shapefiles are imported, their time-stamp is recorded to detect external updates.

The new Surface with Boundaries tool allows the user to create kriged surfaces with a user-defined outer boundary extent. Also, an isolated fault can be used to tear and reshape a horizon surface locally.

The Extend Surface tool has been improved with new surface extension capabilities and the line extrusion functionality has been moved from the Surface creation tool into the Extend tool, merging with existing functionality to tie all surface extension methods into a single place.

The new Query tool provides several advanced methods for interrogating and selecting data in Move. Userdefined conditions in the form of logical equations can be created to test values of objects, vertex, faces or cell attributes. Various spatial conditions can be performed too.

The Object Analyser is new for Move2018 – this uses some of the functionality from the Object Browser but also allows selected objects to be viewed in a table form with any associated object attributes displayed.

In Map View, the user can now display surfaces and grids in different mesh styles as they would be displayed in 3D Views. The three different styles are: outline, flat fill, or shaded fill.

In addition to all of the above – and much more - 2D and 3D seismic data can now be exported in a SEG-Y format. This includes seismic profiles and volumes that were imported in time and depth converted in Move.

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Move - the core application

Move Knowledge Base

In Move2017.1 we introduced the first release of the Move Knowledge Base. This resource contains all Move Help Pages, Tutorials, and the release documentation presented in a single, offline, searchable entity, independent of Move. The material is cross-referenced and brings together tutorial workflows with more detailed help topics including algorithm theory and recommendations for tool application and parameter values. The Knowledge Base can be easily updated and made available to our users regularly therefore it is considered more up-to-date than the application help pages. This allows us to improve our teaching material, which is then independent of the Move software release cycle.

For 2018.1, the Knowledge Base has improved cross-referencing of tutorials and help topics and the addition of a new menu to the top bar. The new menu (Monthly Features) allows users to access the back catalogue of Move Monthly Features that form part of our monthly newsletter that is made available to registered users.

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Move Knowledge Base

Kinematic Updates

Elliptical Fault Flow provides a new way to model and restore faults with variable offsets. This new kinematic algorithm was created by Midland Valley and is accessed through the 2D Move-on-Fault and Horizon from Fault toolboxes. Elliptical Fault Flow is the first kinematic algorithm to fully incorporate non-uniform fault displacement profiles and gradients; as a result, the algorithm significantly expands the range of faulting styles that can be modelled using 2D Move-on-Fault algorithms.

As with other 2D Move-on-Fault algorithms, Elliptical Fault Flow predicts fault-related deformation for a given fault shape and offset using mathematical relationships derived from empirical field data (Watterson 1986; Barnett et al. 1987; Walsh & Watterson 1988; Gibson et al. 1989). In Move, the interface for the Elliptical Fault Flow algorithm has been optimised to allow the validity of interpretations to be quickly assessed, and to ensure that faults with non-uniform fault displacement profiles and gradients can be restored as easily as possible.

For more information on Elliptical Fault Flow, see the Move monthly feature available in the Move Knowledge Base.

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Kinematic Updates

Fault Analysis

Fault Analysis has been expanded to include Uncertainty Modelling for 2018. The tool allows users to run a Monte Carlo simulation that models deviations in fault cut-off position and Vshale log values. Using these simulations, the impact of data resolution can be investigated and the certainty of fault juxtaposition and seal proxies to be quantified. A strike projection of the modelled fault can be visualized and colour mapped for the mean, mode or percentile (e.g. P10, P50, P90) result.

Uncertainty Modelling quantifies the likelihood of a fault acting as a conduit or barrier to across fault fluid flow. This can add confidence to prospect generation and trap evaluation and reduce financial risk.

Additional developments to Fault Analysis in 2018 allow:

  • Seal proxy colour maps can be customised.
  • Seal proxies to be filtered by horizon displacement area.
  • Fault Triangle diagrams to be calculated from well logs without stratigraphic markers.
  • Charts allow guide lines to be created and optionally converted to mesh surfaces in the model.

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Fault Analysis

Fault Response Modelling

For 2018, Monte Carlo Stress Inversion has been added to the Fault Response Modelling module. This new technique introduces iterative stress inversion methods based on Monte Carlo simulations and direct inversion method to invert stress fields from focal mechanisms (Angelier 1990). Rather than using the grid search method, various fault plane realisations through Monte Carlo simulations will be directly inverted and the best fitting stress tensor is identified by investigating the resulting stress orientation pattern from many simulations. To gain further confidence several confidence estimators are cross plotted to approximate differential stresses.

The new functionality aims to reduce the effects of the two major challenges, the fault/auxiliary issue and the heterogeneity of the underlying dataset. The stress inversion methodology shows how statistical simulations can contribute to resolve these issues. In combination with estimator cross plots, this technique allows the user to quickly verify heterogeneity and helps to separate fault populations from each other. Furthermore, the statistical approach minimises the fault/auxiliary plane uncertainty inherent to earthquake focal mechanisms, resulting in stress orientation patterns and shape ratio variations as shown in the figure below.

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Fault Response Modelling

Stress Analysis

Stress Analysis now offers the user several options to display focal mechanism data. Once the moment tensors have been decomposed with either the shear or tensile source model (this functionality was introduced in Move2017), the results can now be displayed with a beachball representation in the stereonet plot (for a single focal mechanism), or in Map Views and 3D Views. In addition to this, the tensile (T) and compressive (P) direction plots are now available in the stereonet plot within the tool. Where only fault planes and their corresponding rake directions are available, the tool can now perform all necessary orientation attributes to produce beachball displays.

Stress Analysis

Other General Improvements

Improvements have been made to the handling of data and the control of object and attribute visibility. A new context menu option has been added to the Sections Browser in the Model Browser to support the display of cross-sections. The Quick Editor for wells and fractures now includes options to control the display of marker data and the percentage of fractures displayed, respectively. Selection speeds have been improved when working with wells with many well logs.

To improve the handling of large files, two new options have been added to Preferences to control whether objects are visualized when a Move project is opened, or new data is imported into an existing Move document. This speeds up rendering times when working in a 3D View with a large number of objects.

New options have been added to the Quick Access tools to make it quicker to Close the document, Close All documents or Save the current document. There's also a new shortcut – Ctrl + D to duplicate a cross-section. (the Resample shortcut has been changed to Ctrl + R).

The support for Closed Lines and Polygons with internal holes has been enhanced to allow situations where a multi-line is converted to a polygon, if parts of a line form an internal boundary then this boundary is preserved in the polygon.

Other General Improvements