Evaluation of 23 pipeline and 32 downhole commercial inhibitors at high velocities using a rotating electrode
- Univ. of Southwestern Louisiana, Lafayette, LA (United States). Corrosion Research Center
A rotating cylinder electrode was used to generate shear stresses representative of the shear stresses as may be encountered in pipelines and downhole production. Linear polarization measured the corrosion rates of the 1018 steel electrode in a solution made of NACE solution mixed with treated kerosene and purged with carbon dioxide. The tests were run both with and without commercial corrosion inhibitors provided by the 19 oil and gas companies which made up the industrial consortium. The pipeline inhibitors were run at 30 C while the downhole inhibitors were run at 70 C. As expected, as the shear stresses increased, a drop in the effectiveness of protection was measured. The solubility characteristics of the CO{sub 2} inhibitors seemed to play a role in their effectiveness.
- OSTI ID:
- 106130
- Report Number(s):
- CONF-950304--
- Country of Publication:
- United States
- Language:
- English
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