A solution of salt in water that is found in oil reservoirs; often brought to the surface during oil extraction.

तेल के खदान का खारा पानी

English Usage: The engineers had to treat the oil well brine to extract useful minerals.

Hindi Usage: इंजीनियरों को तेल कुंए के खारे पानी का उपचार कर उपयोगी खनिज निकालने पड़े।