Key performance indicators are used to track the efficiency of the prevailing corrosion risk management strategy, namely, the integration of corrosion, process monitoring, inspection, mitigation, environmental control, and materials management. In an earlier paper1, a methodology was outlined for the use of a single key performance indicator, namely, the corrosion rate, in tracking monitoring strategy, mitigation strategy, and pipeline integrity. This paper seeks to identify other key performance indicators. At Kuwait Oil Company (KOC), internal corrosion monitoring activities are carried out in 22 gathering centers, early production facilities, 5 booster stations (operating), 3 effluent water disposal plants, seawater treatment plant, seawater injection plant, and pipeline network carrying different products. Corrosion and corrosivity trends are monitored using weight-loss coupons, electronic probes, bioprobes, hydrogen patch probes, galvanic probes as well as the measurement of iron content (total and dissolved) and manganese content. Corrosivity trend is also monitored using pH, conductivity, total dissolved solids, total hardness, dissolved oxygen, H2S concentrations, CO2 concentrations, bacterial population density and corrosion inhibitor residuals. These activities consume significant resources. The present paper is focused on identifying parameter(s) that could serve as key performance indicator(s) for corrosion and enable the company to operate with greater cost effectiveness, efficiency, reliability and control of the state of corrosion integrity of oilfield water handling systems.

Subject
Water, Corrosion rate, Trends, Corrosivity, Sulfates, Effluent, Brackish water, Fluids, Internal corrosion, Corrosion inhibitors, Oilfields, Pitting, Corrosion protection
Keywords:
Key Performance Indicator (KPI), Corrosion Control Metrics, Corrosion trend, Corrosivity Trend, Corrosion Integrity
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2014
Association for Materials Protection and Performance (AMPP)
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