6 5/8", 28# vs 7", 42.7# vs 7 5/8", 47.1#
Summary
- Casing 7 5/8", 47.1# has the higher Casing drift (+10%): 6.25 in versus 5.666 in for Casing 6 5/8", 28#.
- Casing 7 5/8", 47.1# has the higher Casing ID (+10%): 6.375 in versus 5.791 in for Casing 6 5/8", 28#.