Internal Corrosion for Pipelines
5-Day Classroom Course

Description
This course was designed to provide students with the fundamentals of implementing, monitoring, and maintaining an internal corrosion control program as part of an overall Pipeline Integrity Management program. This course focuses on natural gas pipelines, transmissions, storage, and gathering systems. It combines lecture, hands-on field testing and case studies. The course concludes with both a written and practical examination. The practical examination includes OQ Covered Task Assessments for the following tasks: (1) Insert and remove internal corrosion coupons, (2) Measurement of corroded area and pit depth measurement (with pit gauge), (3) Measure wall thickness using handheld ultrasonic meter.

Who Should Attend
This course is geared toward individuals at the technologist level (~4 yrs experience) who have some background and experience in corrosion and are familiar with pipeline operations.

Prerequisites
High School Diploma 4 yrs internal corrosion work It is also recommended that students have taken the NACE Basic Corrosion Course and have had high school chemistry.

Course Highlights (include but are not limited to)

• Internal Corrosion Course Highlights
• Corrosion Theory, Types and Mechanisms
• Identification of Corrosion Mechanisms (Sampling & Monitoring)
• Investigations of Pipe/Components Removed From Service
• Internal Corrosion Mitigation
• Internal Corrosion Integrity Management

Detailed Outline  

CORROSION THEORY, TYPES AND MECHANISMS

Introduction

Material Selection

Fundamentals of Corrosion

Corrosion Types and Mechanisms

Uniform Corrosion

Localized Corrosion

Galvanic Corrosion

Velocity/Flow Related Attack

Microbiologically Influenced Corrosion (MIC)

Environmentally Assisted Cracking

Effects of Environmental Variables on Corrosion

Water Vapor

Temperature

Aggressive Liquid Compositions/Low pH

Carbon Dioxide (CO2)

Hydrogen Sulfide (H2S)

Oxygen (02)

Hydrocarbons

Flow Regime

IDENTIFICATION OF CORROSION MECHANISMS

Sampling and Field Testing

Gas

Liquids

Sampling Locations

Sampling Methods

Sample Analysis

Sampling Frequency

Liquid Transportation Agreement (L TA)

Sludge and Solids

Examination of Exposed Internal Surfaces

Chemical Analysis

Microbiological Testing

Metallurgical Analysis

Operational History Data

Coupons

Location of coupons

Conventional weight loss coupons

Special Types of Corrosion Coupons

Electronic Probes

Electrical Resistance (ER) Probes

Linear Polarization Resistance (LPR) Probe

Other

Investigating Pipe and Components Removed from Service Introduction

Field Sampling and Analysis

Visual Examination and Record

Pipe Sample Preservation Procedures - Non-Ruptures

Pipe Sample Preservation Procedures - Ruptures

Embedment (Replication) of Pipe Samples

Liquid Testing

Microbiological Testing

Laboratory Analysis

Metallurgical Examination

SEM/EDS Analysis

Chemical Analysis Methods

Microbiological Testing

MITIGATION AND MONITORING

Introduction

Mitigation Methods

Chemical Treatments

Biocides

Corrosion Inhibitors

Application Methods

Quality Control

Facilities Maintenance

Pigging

Drips

Line Sweeping

Valves

Corrosion Coatings (Internal)

Cathodic Protection (CP)

Facilities Design

Construction Practices

Monitoring Strategies

Methods of Monitoring

Frequency of Monitoring

Selecting Monitoring Locations

Interpreting Monitoring Data

Compliance vs. Evaluation

INTERNAL CORROSION INTEGRITY MANAGEMENT

Internal Corrosion Integrity Assessment

Decision Tree Process

Integrity Assessment

Hydrostatic Testing

In-line Inspection Tools

Internal Corrosion Direct Assessment Corrosion Analysis

IC Risk Management Planning

For more information, email us: training@kupic.net