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Evaluation of the problematic of corrosion in bottoms of tanks of crude oil storage; Evaluacion de la problematica de corrosion en fondos de tanques de almacenamiento de petroleo crudo

Abstract

In this article the results related to the corrosive aggressiveness of the water fluids of crude oil of the Marine Terminal of Dos Bocas (TMDB), on the effectiveness of the anticorrosive control methods and on the control measures that could be adopted are presented. Also, this article comprises a work made by personnel of the Instituto de Investigaciones Electricas (IIE) during year 2002. The corrosion in tanks is of electrochemical nature and has its origin in the watery phase that accompanies the crude oil on being extracted from underground. In the case of the storage tanks, the watery phase separates at the bottom, causing the wetness of the bottom steel plates and its degradation. Due to the limited access to the interior of the tank during its operation, a testing device was designed that was connected to a drain valve of a tank of the terminal. The experimental work looked for the evaluation of the aggressiveness of the fluids, the type of corrosion products formed and the effectiveness of the cathodic protection and of the coatings. Additionally, fluid samples were collected, for analyzing the natural aggressiveness level that presents the water contained in the three types of crude: Mayan, Olmeca  More>>
Authors:
Malo T, Jose M; Uruchurtu C, Jorge; Meza, Beatriz; [1]  Lopez C, Luis F [2] 
  1. Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)
  2. Region Marina Suroeste, Pemex (Mexico)
Publication Date:
Jul 01, 2003
Product Type:
Miscellaneous
Report Number:
ETDE-MX-0400018
Resource Relation:
Other Information: PBD: 2003
Subject:
02 PETROLEUM; CORROSION; CATHODIC PROTECTION; PETROLEUM; TANKS; MONITORING; NUMERICAL DATA
OSTI ID:
20543270
Country of Origin:
Mexico
Language:
Spanish
Other Identifying Numbers:
TRN: MX0400018
Availability:
Available in Boletin IIE (ISSN 0185-0059), v. 27(1), Jan-Mar 2003, p. 11-18. Also available at the Gerencia de Informacion Tecnologica of the Instituto de Investigaciones Electricas, Calle Reforma 113, Col. Palmira, 62490 Cuernavaca, Mor., Mexico.; Commercial reproduction prohibited; OSTI as DE20543270
Submitting Site:
MX
Size:
[8] pages
Announcement Date:
Jan 16, 2005

Citation Formats

Malo T, Jose M, Uruchurtu C, Jorge, Meza, Beatriz, and Lopez C, Luis F. Evaluation of the problematic of corrosion in bottoms of tanks of crude oil storage; Evaluacion de la problematica de corrosion en fondos de tanques de almacenamiento de petroleo crudo. Mexico: N. p., 2003. Web.
Malo T, Jose M, Uruchurtu C, Jorge, Meza, Beatriz, & Lopez C, Luis F. Evaluation of the problematic of corrosion in bottoms of tanks of crude oil storage; Evaluacion de la problematica de corrosion en fondos de tanques de almacenamiento de petroleo crudo. Mexico.
Malo T, Jose M, Uruchurtu C, Jorge, Meza, Beatriz, and Lopez C, Luis F. 2003. "Evaluation of the problematic of corrosion in bottoms of tanks of crude oil storage; Evaluacion de la problematica de corrosion en fondos de tanques de almacenamiento de petroleo crudo." Mexico.
@misc{etde_20543270,
title = {Evaluation of the problematic of corrosion in bottoms of tanks of crude oil storage; Evaluacion de la problematica de corrosion en fondos de tanques de almacenamiento de petroleo crudo}
author = {Malo T, Jose M, Uruchurtu C, Jorge, Meza, Beatriz, and Lopez C, Luis F}
abstractNote = {In this article the results related to the corrosive aggressiveness of the water fluids of crude oil of the Marine Terminal of Dos Bocas (TMDB), on the effectiveness of the anticorrosive control methods and on the control measures that could be adopted are presented. Also, this article comprises a work made by personnel of the Instituto de Investigaciones Electricas (IIE) during year 2002. The corrosion in tanks is of electrochemical nature and has its origin in the watery phase that accompanies the crude oil on being extracted from underground. In the case of the storage tanks, the watery phase separates at the bottom, causing the wetness of the bottom steel plates and its degradation. Due to the limited access to the interior of the tank during its operation, a testing device was designed that was connected to a drain valve of a tank of the terminal. The experimental work looked for the evaluation of the aggressiveness of the fluids, the type of corrosion products formed and the effectiveness of the cathodic protection and of the coatings. Additionally, fluid samples were collected, for analyzing the natural aggressiveness level that presents the water contained in the three types of crude: Mayan, Olmeca and Istmo handled in the terminal, studying steel samples and of plant fluids under controlled laboratory conditions. The aggressiveness was obtained from measurements of corrosion rates and analysis of microbial activity. The feasibility of applying the method of cathodic protection was analyzed, observing its effectiveness, as well as particular corrosion forms as the ones that occur in the pontoons. The results of the study lead to propose a monitoring scheme to pursuit the integrity of the coatings, the operation of the cathodic protection and the corrosion in tanks, with which a better control of the operation of the anticorrosive methods and of the degradation that occurs with the corrosion, could be obtained. [Spanish] En este trabajo se presentan resultados relacionados con la agresividad corrosiva de los fluidos de agua de crudo de la Terminal Maritima de Dos Bocas (TMDB), sobre la efectividad de los metodos de control anticorrosivo y sobre medidas de control que podrian adoptarse. Asimismo, este articulo forma parte de un trabajo realizado por personal del Instituto de Investigaciones Electricas (IIE) durante el ano 2002. La corrosion en tanques es de naturaleza electroquimica y tiene su origen en la fase acuosa que acompana al crudo al ser extraido del subsuelo. En el caso de los tanques de almacenamiento, la fase acuosa se separa en el fondo, ocasionado el mojado de las placas de acero del fondo y su degradacion. Debido al limitado acceso al interior del tanque durante su operacion, se diseno un dispositivo de pruebas que fue conectado a una valvula de drenado de un tanque de la terminal. El trabajo experimental busco evaluar la agresividad de los fluidos, el tipo de productos de corrosion formados y la eficacia de la proteccion catodica y de los recubrimientos. Adicionalmente, se recolectaron muestras de fluidos para analizar el nivel de agresividad natural que presenta el agua de los tres tipos de crudos: Maya, Olmeca e Istmo, manejados en la terminal, estudiando muestras de acero y de fluidos de planta bajo condiciones controladas de laboratorio. La agresividad se obtuvo de mediciones de velocidades de reaccion de corrosion y de analisis de actividad microbiana. Se analizo la factibilidad de aplicar el metodo de proteccion catodica, observando su efectividad, asi como formas particulares de corrosion como la que ocurre en los pontones. Los resultados del estudio conducen a proponer un esquema de monitoreo para el seguimiento de la integridad de los recubrimientos, la operacion de la proteccion catodica y la corrosion en tanques, con el que se podria tener un mejor control de la operacion de los metodos anticorrosivos y de la degradacion que ocurre por corrosion.}
place = {Mexico}
year = {2003}
month = {Jul}
}