The key target of pipelines operation in oilfields is their failure-free service throughout their useful life. According to Oilfield Pipelines Integrity Strategy, inhibitors are said the main corrosion control solution. The amount of inhibitor-protected pipelines keeps growing across TNK-BP from year to year thus allowing the Company to considerably reduce the pipeline failure rate.
Corrosion monitoring is an important tool of inhibition efficiency tracking. It identifies changes in corrosion rate and other parameters that characterize aggressive effect of the medium. By doing so, corrosion monitoring signals of the changes in pipeline operating conditions or the variances in inhibition processes. Corrosion monitoring confirms that as a result of inhibition, pipeline corrosion rate stays acceptable and poses no threat to pipeline integrity.
Corrosion driving factors are too many and, thus, it seems impossible to find any good-for-all method to forecast pipeline integrity or assess efficiency of the activities performed. The operational methods of measuring corrosion rate and its changes in time are the most informative which makes them more widely used in corrosion monitoring.