Crude oil from Norte de Monagas field, in Venezuela, contains large amounts of asphaltenes, some of them are very unstable with tendency to precipitate. Because of liquid is carried over from the separation process in the flow stations, asphaltenes are also present in the gas gathering and transmission lines, precipitating on inner wall of pipelines. The gas gathering and transmission lines contain gas with high partial pressures of CO2, some H2S and are water saturated; therefore inhibitors are used to control the internal corrosion. There is uncertainty on how inhibitors perform in the presence of asphaltene deposition. To protect the pipelines from external corrosion, cathodic protection is used. Since asphaltenes have polar properties, there exists an uncertainty on whether it enhances asphaltene precipitation and deposition. The purpose of this paper to describe the causes that enhance asphaltene deposition on gas and some of the preliminary result from an ongoing research project carried out by Intevep and Corpoven.
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1996 1st International Pipeline Conference
June 9–13, 1996
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
978-0-7918-4020-7
PROCEEDINGS PAPER
Effect of Asphaltene Deposition on the Internal Corrosion in Transmission Lines
José L. Morales,
José L. Morales
INTEVEP, S.A., Caracas, Venezuela
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Alfredo Vllorla,
Alfredo Vllorla
INTEVEP, S.A., Caracas, Venezuela
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Carlos A. Palacios T.
Carlos A. Palacios T.
CORPOVEN S.A., Puerto La Cruz, Los Teques, Venezuela
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José L. Morales
INTEVEP, S.A., Caracas, Venezuela
Alfredo Vllorla
INTEVEP, S.A., Caracas, Venezuela
Carlos A. Palacios T.
CORPOVEN S.A., Puerto La Cruz, Los Teques, Venezuela
Paper No:
IPC1996-1832, pp. 269-276; 8 pages
Published Online:
October 21, 2016
Citation
Morales, JL, Vllorla, A, & Palacios T., CA. "Effect of Asphaltene Deposition on the Internal Corrosion in Transmission Lines." Proceedings of the 1996 1st International Pipeline Conference. Volume 1: Regulations, Codes, and Standards; Current Issues; Materials; Corrosion and Integrity. Calgary, Alberta, Canada. June 9–13, 1996. pp. 269-276. ASME. https://doi.org/10.1115/IPC1996-1832
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