Monitoring Corrosion in Oil and Gas Production with Iron Counts

This standard practice describes the use of iron counts as a corrosion-monitoring method and some common problems encountered when using this method. This standard is a guide for those designing corrosion-monitoring programs as well as those carrying out the programs in the field.

During the review of the previous revision of this document, it was observed that the document lacked guidelines regarding the conversion of iron count number to corrosion rate. The corrosion rate number provides easy data interpretation and possible actions. The end user will be able to establish key performance indicators using the corrosion rate thus established for the system based on the trends.

Other changes in this revision include:

• Added recommendation to ensure the sampling collection metallurgy for equipment in sour service is compliant with ANSI/NACE MR0175/ISO 15156.

• Replaced Figure 2 with a clearer version.