vamseeachanta Checklist (+2)
Checklist
- Layer loads and
layer.isValid()returns True - Feature count matches expected (
layer.featureCount()) - CRS is correct (
layer.crs().authid()== expected EPSG) - Geometry is valid (run
native:fixgeometriesif not) - Well coordinates plot in correct basin/region (visual sanity)
- Reprojected coordinates match manual calculation spot check
- Output file size is non-zero and opens in external QGIS GUI
Coordinate Sanity Check
# Spot check: print first 3 well locations
for feat in layer.getFeatures():
pt = feat.geometry().asPoint()
print(f"{feat['well_name']}: lon={pt.x():.4f}, lat={pt.y():.4f}")
if limit_counter := limit_counter + 1 >= 3:
break
Marine-Offshore CRS Reference
| Region | UTM Zone | EPSG |
|---|---|---|
| North Sea | 31N | 32631 |
| Gulf of Mexico | 15N | 32615 |
| Brazil offshore | 23S–25S | 32723–32725 |
| Australia NW shelf | 50S | 32750 |
| Global (geographic) | WGS84 | 4326 |
| Global (web maps) | Web Mercator | 3857 |