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Tuesday, March 24, 2009: 8:30 AM
C307 (Georgia World Congress Center)
USING Guided lamb wave FOR REAL-TIME MEASUREMENTS OF WALL THINNING OF PIPELINES SUBJECT TO CORROSION AND/OR EROSION
(lab testing evaluation)
Corrosion and erosion remain two key issues in oil and gas production. In the last few years, there has been an increasing demand for online process control where the rate of metal loss may be monitored. Online corrosion monitoring is an important component of any comprehensive corrosion control and integrity programs. Utilizing a non-intrusive approach will provide flexibility in selecting the monitoring locations in congested areas, where tools required to maintain intrusive devices may not have room to function.
This paper will cover a laboratory assessment program of a newly developed flexible non-intrusive corrosion monitoring tool. The technology is based on Acoustic Guided Lamb Waves (AGLW). The assessment included building an 8” carbon steel pipe circulating loop under acidic conditions. The lab experiments have shown that it is possible to detect changes in wall thickness on the submicrometer scale.
(lab testing evaluation)
Corrosion and erosion remain two key issues in oil and gas production. In the last few years, there has been an increasing demand for online process control where the rate of metal loss may be monitored. Online corrosion monitoring is an important component of any comprehensive corrosion control and integrity programs. Utilizing a non-intrusive approach will provide flexibility in selecting the monitoring locations in congested areas, where tools required to maintain intrusive devices may not have room to function.
This paper will cover a laboratory assessment program of a newly developed flexible non-intrusive corrosion monitoring tool. The technology is based on Acoustic Guided Lamb Waves (AGLW). The assessment included building an 8” carbon steel pipe circulating loop under acidic conditions. The lab experiments have shown that it is possible to detect changes in wall thickness on the submicrometer scale.