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Characterisation of test and production, water samples, Strontium, Oxygen, Hydrogen Isotope Composition.
The strontium isotope composition of production water, used in conjunction with SrRSA data from core, can assist with water allocation. Such an approach would be applicable to a time series of produced water samples.
The oxygen and hydrogen isotope composition of water can differentiate between seawater, meteoric water and evolved basinal brine. Combined Sr-O-H data can therfore, further constrain the geological origin of test water samples.
Combining Sr-O-H isotopes with chemistry and physical properties can provide a complete characterisation of water samples.