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11355 Corrosion Related Gas Compressor Vibration (Case Study)

Picture for 11355 Corrosion related Gas Compressor Vibration (Case Study)
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Product Number: 51300-11355-SG
ISBN: 2011 11355 CP
Author: Mohanned S. Al-Qallaf and Said S. Al-Jaroudi
Publication Date: 2011
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This paper presents a case study of corrosion related gas compressor vibration problem observed at one of Saudi Aramco gas compression plants. Investigation revealed that the high vibration was mainly due to corrosion product deposition on the compressor internals. Accumulation of the solids on the compressor rotor caused high vibration and consequently tripped the compressor. The corrosion products were characterized by photometric and potentiometric analyses, Inductive Couple Plasma (ICP), X-ray Diffraction (XRD) and their morphology was observed by Scanning Electron Microscopy (SEM). The analytical data and the corrosion rate monitoring history indicated that minor corrosion is taking place upstream of the affected compressors. It was concluded that the main source of corrosion product is the upstream facilities. The paper has shed light on the root cause of the problem and discussed the lab analyses and the different experimental techniques used to determine the nature of the corrosion products. The paper also addresses the short and long term recommendations that were proposed to prevent future failures.

Keywords: corrosion, products, gas compressor, vibration, rotor, lab analysis, experimental, procedure, corrosion control
This paper presents a case study of corrosion related gas compressor vibration problem observed at one of Saudi Aramco gas compression plants. Investigation revealed that the high vibration was mainly due to corrosion product deposition on the compressor internals. Accumulation of the solids on the compressor rotor caused high vibration and consequently tripped the compressor. The corrosion products were characterized by photometric and potentiometric analyses, Inductive Couple Plasma (ICP), X-ray Diffraction (XRD) and their morphology was observed by Scanning Electron Microscopy (SEM). The analytical data and the corrosion rate monitoring history indicated that minor corrosion is taking place upstream of the affected compressors. It was concluded that the main source of corrosion product is the upstream facilities. The paper has shed light on the root cause of the problem and discussed the lab analyses and the different experimental techniques used to determine the nature of the corrosion products. The paper also addresses the short and long term recommendations that were proposed to prevent future failures.

Keywords: corrosion, products, gas compressor, vibration, rotor, lab analysis, experimental, procedure, corrosion control
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