API 346 : 1998

Table of Contents

Executive summary
1 Introduction
        History
        Project background
        Technologies that were represented in the project
2 Scope and objectives
        General project objectives
        Technology-specific objectives
3 Protocols and test methods
        Test site
        General project protocols
        Technology-specific protocols
        Test methods
        Testing limitations
4 Observations and results
        Volumetric
        Tracer
        Pressure decay method
        Acoustic emissions method
5 Field inspection results
        Field inspection
        Comparison to leak location estimates by vendors
6 Results/findings
Reference list
Appendix A - Data report from vista research
Appendix B - Report from tracer research
Appendix C - Report from hansa consult tcs
Appendix D - Report from physical acoustics corporation
Figure

Abstract

Defines methods for testing underground pipes of 6 to 18 inches in diameter and 250 feet to 2 miles in length were selected for field demonstration. These were of constant-pressure volumetric testing, chemical tracer testing, pressure-decay testing, and acoustic emission testing. No single leak detection system was found to work in all situations; site-specific conditions may affect any method, and combinations of methods may provide the most effective approach.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN