What is the Strat Filter?
In the Strat Filter you can create custom parent-child filters between different stratigraphic data types.
You can select a ‘parent' stratigraphic unit (eg a Group) and then toggle through various ‘child’ data types. On the map you will see which 'child’ zones are present inside the parents top and base.
Child zones are drawn on the map as bars, displaying the top-to-base order in which they appear in the wellbore. The bars are annotated with unit name and thickness in MD.
The Strat Filter is located in the Windows tab in the top ribbon.
The Strat Filter Window
Creating a basic filter
A basic filter will visualise on MapView the presence and thickness of a single chosen stratigraphic zone.
1) Select a chosen zone from the drop-down boxes.
2) In the Display drop-down, select the same data type that your chosen zone belongs to
The example below shows FANGST Group, with Groups selected in the Display drop-down.
To the right is a list of all wellbores returned by our basic filter.
On MapView, you will see the results of your filter visualized as bars, annotated with zone name and thickness (MD)
The bars are dynamically sized based on the range of thicknesses returned by the filter.
Wellbores which return a negative result are greyed out.
Creating a Parent-Child Filter
Creating a Parent-Child Filter will allow you to visualize a data type (eg 3rd ord sequences) present inside a stratigraphic zone of interest (eg GARN formation).
Select a chosen Parent zone from the drop-down boxes.
In the Display drop-down, select a Child data type you wish to filter
The example in the image below shows the filter result of Garn Formation combined with 3rd Order Sequences. The Map shows all 3rd Order Sequences present with in the top and base of the Garn.
You can view other child combinations by simply selecting another data type in the Display drop-down, and conversely you can select another Parent while keeping your child filter. The Map will update on-the-fly as you alter your filter.
Display Filter Range
Display Filter Range allows you to view different depth ranges of your search result.
By clicking All Zones, you will view all Child zones present in your filter result.
Upper will return the shallowest Child zone in your filter result, and Lower will return the deepest Child zone.
*Note that Upper and Lower are calculated using Measured Depth.
