Velocity Models
Want to make the most out of your velocity model? Build, edit and view velocities with the data you have available.
|
Velocity Model from Well Checkshots
DUG Insights Velocity model from Well Checkshots process builds a structurally compliant 3D velocity model using time-depth information from your wells. Its fast and easy to use. The models are dynamic and calculated on-the-fly, so you can tweak checkshots and adjust the horizons to really fine-tune your results. Find out more about this process!
|
|
|
Vel Layercake from laterally varying velocity horizons
With a few horizons and velocity maps, you can create a detailed, structurally compliant velocity model using just one process! Check out this video on how take DUG-Insight’s Volume Maths tool to the next level. Build 2D or 3D models layer-by-layer from time/depth or velocity horizons, and even incorporate V0-K functions!
|
|
|
Creating Velocities (Vertical Merging)
With so many approaches to creating velocity models, some will invariably perform better than others but how can you use the best parts of two models? Heres a safe way to combine two velocity models at a horizon or time, while maintaining the time-depth relationships from each. Dont settle for two reasonable models! Use this technique and DUG-Insights volume merge to create one great one!
|
|
|
Creating Velocities (Smooth Spatial Merging)
Got 2D velocities over here and a 3D model over there, but you need time-depth conversion everywhere? DUG-Insight can help you out! Using a simple merge to combine models can result in discontinuities where velocity models dont tie. In this video, we show how to use blending zones between surveys to get a smooth transition between two different velocity models. Another useful workflow in DUG-Insight!
|
|
|
Spatially merge two volumes smoothly
Seismic surveys come in different shapes, sizes and spatial locations. We will cover two examples to blend seismic, or velocity volumes, together to form a composite of two or more smaller volumes. Both methods use a combination of volume maths, horizons and polygons.
|
|
|
Spatially blend partially overlapping volumes
An alternate workflow for spatially blending velocity volumes when one volume does not completely enclose the other.
|
|
|
Creating Velocities (Constant Models)
Need to create a basic velocity model for reconnaissance or to quickly test time/depth conversion? DUG-Insights volume maths is here to help!
|
|
|
Creating Velocities (Layered Models)
Adding layers to a velocity model helps improve the quality of time-to-depth conversion. Using DUG-Insights processes, we explore creating structurally compliant, layered models. We tackle creating layered models in 2D and 3D using a volume maths expression, and follow up with a layered model-based approach. This is a great introduction to creating your own advanced expressions in Insight.
|
|
|
Creating Velocities (V0+K Models)
In exploration, its common to work in areas with only vintage or limited data, but time-depth conversion is still required for solid interpretation! Use DUG-Insights volume maths to build a V0+K model with as many layers as you need, and take advantage of Insights on-the-fly depth conversion in any project!
|
|
|
Creating Velocities (Layered Proportional Models)
Building on techniques from our earlier Creating Velocities videos, we demonstrate how to create a complex layered synthetic velocity model with varying gradients and smooth transitions between layers. The result is a detailed, spatially-varying velocity model that conforms to structure -- exactly what we need for DUG Insights on-the-fly time-to-depth conversion!
|
|
|
Velocity picking, stacking and amplitude extraction
DUG-Insights Volumetrics tool quickly calculates in-situ reserves from a single- or dual horizon structure. View the results in an easy to read table or copy into a report. Building estimates of reserves has never been so speedy!
|
|
|
Calibrating velocities Part 1 - generate Delta curve
Trying to match a velocity to tie to the well location?
Find out more on how to use DUG-Insight’s delta function to scale isotropic velocities to
vertical velocities derived from well checkshot/VSP data. Our three part series will show
you how! Part one covers how to create the delta function from well log curves.
|
|
|
Calibrating velocities Part 2 - create and apply delta model
Trying to match a velocity to tie to the well location?
Find out more on how to use DUG-Insight’s delta function to scale isotropic
velocities to vertical velocities derived from well checkshot/VSP data.
Part two covers creating a 3D model from our delta function well log curves created in Part one.
|
|
|
Calibrating velocities Part 3 - QC results
Trying to match a velocity to tie to the well location?
Find out more on how to use DUG-Insight’s delta function to scale isotropic velocities to
vertical velocities derived from well checkshot/VSP data.
Part three covers how DUG-Insight’s on-the-fly QC tools which can quickly identify
any issues and correct them. See Part one and two for generating our 3D model and inputs.
|
|
