Unit of Measure normalization

For an Operator with data from all over the world, may have mix of unit systems. Such as KB elevation of one well is in feet whereas KB elevation for another well is in meters. Is "on the fly" unit conversion in scope? Also, I do not believe there is provision to hold two sets of values for such fields (Well's KB elevation, Well Log depth interval values). Hence I am curious, what is the recommended approach for this?

Linked to issue #36 (closed)