Pipeline Corrosion and Cathodic Protection
A Practical Manual for Corrosion Engineers, technicians, and field personnel
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This update of Marshall Parker’s classic text contains the latest “hands-on” information for taking measurements and making the calculations necessary for cathodic protection of buried pipe lines. Essentially a practical field manual for corrosion technicians and engineers, it is a simple and direct introduction to the fundamentals of a complex subject. The contents cover soil resistivity surveys, potential surveys, line currents, current requirement surveys, rectifier systems for coated lines, ground bed design and installation, galvanic anodes on coated lines, hot spot protection, bond protection, stray current electrolysis, interference, operation and maintenance, and coating inspection and testing. There are also helpful appendixes that explain the fundamentals of underground corrosion, basic principles of cathodic protection, tables of properties of metals, and attenuation equations. While other books on corrosion are sometimes too theoretical for practical work, Pipe Line Corrosion and Cathodic Protection, Third Edition, shows you how to take actual field measurements and apply them to design a well-protected system.
Table of Contents
- Chapter 1: Soil Resistivity Surveys
Soil Resistivity Units
Two-Terminal Resistivity Determination
Four-Terminal Resistivity Determination
Other Methods
Locating Hot Spots on Bare Lines
Surveys for Ground Beds
Area Surveys
Logarithmic Resistivity Ranges
Summary
Chapter 2: Potential Surveys
Pipe-to-Soil Potentials: Electrodes
Electrode Placement
Pipe Line connection
Surface Potential Survey for Corrosion
Pipe-to-Soil Potential as a Criterion of Cathodic Protection
Other Applications of Pipe-to-Soil Potentials
Other Criteria
Summary
Chapter 3: Line Currents
Measurement of Line Current in Test Section
Stray-Current Studies
Long-Line Currents
Cathodic Protection Tests
Coating Conductance Measurement
Summary
Chapter 4: Current Requirement Surveys
The Problem: Coated Lines
Principles of Current Requirement Test
Current Sources for Tests
Temporary Ground Beds
Special Conditions
Summary
Chapter 5: Rectifier Systems for Coated Lines
General Design Principles
Attenuation Curves
Line Termination
Anode Proximity Effects
Attenuation with Multiple Drain Points
Design Procedure
An Alternate Method
The Economic Balance
Summary
Chapter 6: Ground Bed Design and Installation
Design Principles
Disturbing Factors
Field Modification
Installation Methods
High-Silicon Iron Anodes
Steel Anodes
Horizontal Graphite Anodes
Deep Anodes
A Typical Ground Bed Installation
Summary
Chapter 7: Galvanic Anodes on Coated Lines
When and Where to Use Magnesium
When and Where to Use Zinc
General System Design
Installation Procedure
Polarization and Final Adjustment
Modification of Process with Experience
Sample Problems
Summary
Chapter 8: Hot Spot Protection
What Hot Spots Are
Hot Spot Protection
Locating Hot Spots
Anode Selection and Spacing
Field Installation
Field Design
Zinc Anodes in Hot Spot Protection
Installation Details
Supervision and Control
Summary
Chapter 9: Stray-Current Electrolysis
Stray Current Corrosion
Sources of Stray Currents
Detection of Stray Current
Remedial Measures
Negative Bus Bonding
Exposure Areas
Potential Surveys
Secondary Exposure
Summary
Chapter 10: Interference In Cathodic Protection
The Problem
Basic Solutions
Design
Crossing Bonds
Calculation of Bond Resistance
Multiple Bonds
Auxiliary Drainage
Parallel Lines
Radial-Flow Interference
Foreign Lines with Insulating Joints
Summary
Chapter 11: Operation and Maintenance
Importance of Adequate Supervision
Failures in Rectifier-Ground Bed Systems
Failures in Magnesium Anode Systems
Minimum Inspection Schedule for Rectifier-System
Minimum Inspection Schedule for Anodes
Monitor System
Troubleshooting
Summary
Chapter 12: Coating Inspection and Testing
Construction Inspection
Evaluation of Coating in Place
Coating or Leakage Conductance
Pearson Surveys
Accelerated Coating Tests
Summary
Appendices
Appendix A: Fundamentals of Corrosion.
Appendix B: Cathodic Protection of Steel in Soil. Appendix C: Corrosion of Steel in Soil.
Appendix D: Attenuation Equations
Index
Product details
- No. of pages: 166
- Language: English
- Copyright: © Gulf Professional Publishing 2013
- Published: July 11, 1988
- Imprint: Gulf Professional Publishing
- Paperback ISBN: 9780872011496
About the Authors
Marshall Parker
Marshall Parker began his career at Houston Light & Power Co & was a registered P.E in Texas & consultant on pipeline corrosion for many years. He was also active in the National Association of Corrosion Engineers, serving on several technical committees.
Affiliations and Expertise
Formerly Houston Light & Power Co
Edward G. Peattie
Affiliations and Expertise
Edward G. Peattie has held positions in the energy industries, both in the U.S. and overseas. He is a member of the SPE of AIME, NACE, NSPE, ACS, AIChE, ASM, and AAAS. Mr. Peattie is also a registered professional engineer in the state of Ohio, and is now a consulting engineer in Florida.
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wei c. Thu Feb 27 2020
Content of the book
Feed for what i need. Good book