Sierra™ Family Velocity Modeling and Depth Conversion Suite - Comprehensive toolbox for velocity modeling and depth conversion Landmark’s Sierra™ Family contains all the tools you need for building velocity models and depth conversion in both simple and complex geologies. Using well data from Landmark’s OpenWorks® database and Sierra coherency inversion and map migration technology you can build accurate velocity models that tie your wells. Offset ray tracing and different methods of depth conversion allow you to validate the model and determine where uncertainty may lie in your velocity model. The Sierra Family toolbox includes Siva+™, Raymap+®, Mimic+™, Slipr+, Quik+™, Quikwell+™, Quikdig+® and Vespa+™. Benefits More time for data analysis - The Sierra Family of tools easily handles lower-level tasks, so you’ll have more time for data analysis. Easier to build velocity models - Tight workflow integration with OpenWorks®, and SeisWorks® software makes it easier to build velocity models. Improved understanding of subsurface - The Sierra Family builds a fully integrated model using all of your data, giving you a better understanding of the subsurface and reducing the risk that data is omitted. And with different methods of validation, you’ll have increased confidence in your model. Empowers asset teams - The Sierra Family puts velocity modeling and validation tools in the hands of the asset team, allowing team members to depth convert seismic and interpretive data. Features Velocity model building - Sierra Family lets you build 2D or 3D velocity models based on TD tables, well picks, seismic velocities and interpreted horizons. The model may be built using either a layer-based or volume-based workflow. Offset ray trace validation - Zero-offset ray tracing allows you to determine where vertical stretch depth conversion is valid and where it would cause errors outside of your tolerance. Well validation - You can compare actual well picks from OpenWorks to your depth conversion results and get a quantitative measure of model accuracy. 3D visualization - 3D visualization lets you see your model in full 3D perspective. Access to OpenWorks and SeisWorks data - Time-depth tables, well picks and interpreted horizons can easily be loaded from OpenWorks and SeisWorks and incorporated into the velocity model. Map migration - Horizons can be map-migrated, to more accurately depth convert your data as compared with simple vertical stretch. Horizons can be map migrated to more accurately depth convert you data that simple vertical stretch. Coherency inversion - Coherency inversion models 3D non-hyperbolic moveout by ray tracing through a fixed overburden while varying the velocity of the analysis layer.