Water Analysis: It is critical for any field development to have a detailed composition of the formation water to assess the potential for inorganic scale to be formed during pressure depletion or water injection. Samples collected from exploration and appraisal wells are analysed for API 12 ion composition, sulphate content and volatile organic acid concentrations. The composition of produced water and residual scale inhibitor concentrations also measured on a regular basis to monitor changes to the produced water composition. Residual scale inhibitor concentrations are monitored to evaluate the effectiveness of continual chemical injection or periodic squeeze treatments.
