Sea Water has a TDS of over ...

Sea Water has a TDS of over 30,000 ppm depending on source body. First is to Deoxygenate it through counter flow with N2 gas. For that you need a Pressure Swing Absorption plant to generate N2 gas. Then you need to pass it through several stages of particle removal with close monitoring using Coulter counter. Then you must treat it with a combination of 25% glutaraldehyde and Isothiazolin 10% combination. Prior to that, the intake sea channel will be having grates to stop marine influx like molluscs, seaweed etc. This part of the treatment is considerably problematic and requires thorough study of that particular marine environment before undertaking biokill measures.

The treated seawater is pumped through the use of water injection pumps which needs constant monitoring. The water at the injection site has to be tested for SRB growth at site as well as in a secure lab. The fundamental logic is to have deoxygenated water with treatment to restrict/kill any Sulfate-reducing bacteria which will damage the well as well as the steel pipes bringing up the oil through water flooding.