Comparison of Classification Systems for Abbotsford Well-Log Data

Final sum of subsurface category was five subsequent to a further reduction after the two standardization systems. For the two classification systems, GSC and BC, each subsurface category was modelled based on elevation independently to compare corresponding category or material units. There are certain inconsistencies encountered prior to the modelling stage. Well tag numbers (WTN) which were used as index to well-logs refer to the same UTM coordinates for multiple boreholes in the data table. This requires manual cross–referencing of WTN in the two tables consisting well–log descriptions and corresponding UTM coordinates respectively. Many well-logs were identified with the same UTM coordinates. This leads to significant reduction in the number of boreholes used in the modelling process. Discussions ensuing from these models are outline as follows.