Piping and Pipelines Assessment Guide

1st Edition

Authors: Keith Escoe
Hardcover ISBN: 9780750678803
eBook ISBN: 9780080457116
Imprint: Gulf Professional Publishing
Published Date: 3rd March 2006
Page Count: 560
88.95 + applicable tax
76.00 + applicable tax
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Institutional Access


Whether it’s called “fixed equipment” (at ExxonMobil), “stationary equipment” (at Shell), or “static equipment” (in Europe), this type of equipment is the bread and butter of any process plant. Used in the petrochemical industry, pharmaceutical industry, food processing industry, paper industry, and the manufacturing process industries, stationary equipment must be kept operational and reliable for companies to maintain production and for employees to be safe from accidents. This series, the most comprehensive of its kind, uses real-life examples and time-tested rules of thumb to guide the mechanical engineer through issues of reliability and fitness-for-service.

This volume on piping and pipeline assessment is the only handbook that the mechanical or pipeline engineer needs to assess pipes and pipelines for reliability and fitness-for-service.

Key Features

  • Provides essential insight to make informed decisions on when to run, alter, repair, monitor, or replace equipment
  • How to perform these type of assessments and calculations on pipelines is a ‘hot' issue in the petrochemical industry at this time
  • There is very little information on the market right now for pipers and pipeliners with regard to pipe and pipeline fitness-for-service


Mechanical Engineers, Maintenance Engineers, Piping Engineers, Pipeline Engineers, Pipeline Maintenance engineers, Pipeline Operators, Plant Engineers, Plant Operators, Plant Maintenance Engineers, Pipeline Inspectors, Piping Inspectors, Materials Specialists

Table of Contents



Chapter 1: An Introduction to In-plant Piping and Pipeline Fitness-for-Service


What Is Piping?

Areas Where Corrosion Attacks Piping

The Maximum Allowable Operating Pressure (MAOP)

Assessment Procedure

Classification of Corroded Regions

Corroded Pit Region Interaction Parameters


Determining the Allowable Length of Corrosion

Corrosion Allowance

Assessing Type 3 Flaws

Burst Tests Validation

Circumferential Corrosion

Corrosion in Pipe Bends

Branch Connections and Fittings

Determining a Maximum Allowable Operating Pressure

Flaws in Heat-Affected Zones of Welds

Chapter 2: An Introduction to Engineering Mechanics of Piping

Piping Criteria

Stress Categories

Allowable Stress Range for Secondary Stresses

Stresses Acting on Piping Elements

Stress Calculations

The Pipeline Codes—ASME B31.4 and B31.8

Flexibility and Stiffness of Piping

Stiffness and Large Piping

Flexibility Method of Piping Mechanics

Criteria for Flexibility Analysis

Example Using the Empirical Flexibility Criterion

Suggested Criteria for Level of Piping Flexibility Analysis


Chapter 3: Fitness-for-Service Topics of Local Thin Areas, Plain Dents, Dents-Gouges, and Cracks for Piping

Useful RSF Equations Using API 579

Assessment Techniques and Acceptance Criteria

Remaining Life Assessment


In-Service Monitoring


Damage Mechanisms

Blisters and Laminations

Assessment of Local Thin Areas

General Metal Loss Assessment

Local Metal Loss Assessment

Performing the Remaining Life Assessment

Material Property Data

Crack-like Flaws

Grooves, Plain Dents, a


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About the Author

Keith Escoe

A. Keith Escoe, P.E., has worked in the chemical process, oil refining, and pipeline industries for thirty two years all over the world. His experience includes South America, the North America, and the Middle East. He is retired from Saudi Aramco in the Kingdom of Saudi Arabia where he was an engineering specialist. He is currently an international consultant. The author of many technical papers and books, Mr. Escoe has a B.S. in Mechanical engineering from the University of Texas at Arlington, an MBA from the University of Arkansas and is a licensed professional engineer in Texas.

Affiliations and Expertise

International Consultant, Houston, TX, USA