Using EarthVision to Build and Visualize a Regional Structural Geological Model
Figure 1. Cross section view of the EarthVision model showing an area of localized faulting corresponding to an area with a 3D seismic survey.
Well Data Analysis and Model Correlation
Once the new structure model was in place, the group focused on a well analysis study (Figure 2). Using additional EarthVision tools and scripts, the team determined qualitative and quantitative information about the well relationships with each other, and with the model zones and faults, including:
- zone and fault block labeling (intersections) for every point in every well trajectory
- nearest well location
- operator of the nearest well
- nearest well that landed in the same model zone
- length of the well that landed in the zone
- all other model zones the horizontal legs were landed in
The well/model attributes were visualized both in 2D plots and in the 3D Viewer. After detailed QC of the well analysis data in EarthVision, it was straightforward for the team to bring the results into their Spotfire database to study with other elements; this enabled the group to determine which zones to target for future drilling programs.
The flexibility of EarthVision to incorporate areas of highly detailed localized fault data, with existing regional fault data, into a single regional structural geological model was a critical step to completing a well analysis study. Tools within EarthVision facilitated investigating and understanding the relationships between the wells, faults and stratigraphy, and provided the team with the critical information they needed to plan for their future drilling program. Access to a scripted, repeatable workflow allowed the team to quickly and easily update their well analysis results as new wells were drilled.