Means 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.
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| Fig. 1.1. Perforated swept reservoir contributing with bad water | Fig. 1.2. Non-perforated water reservoir contributing with bad water through the behind-casing channel |
See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis / Watercut Diagnostics