Water which is produced from the water reservoir and hence not adding to sweeping hydrocarbons.
It is a opposite to Good Water which is produced from the same reservoir as hydrocarbons and hence helping to sweep hydrocarbons.
Fig. 1.1. Perforated reservoir A2 contributing to production with bad water as against good water in A1 | Fig. 1.2. Non-perforated water reservoir A2 contributing with bad water through the behind-casing channel as against good water in A1 |
See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis / Watercut Diagnostics
[ Good Water ]