OLS : Record

RECORD NUMBER: 49 OF 3573

Main Title

Acoustic location of leaks in pressurized underground petroleum pipelines microform /

Author

CORP Author

Vista Research, Inc., Mountain View, CA. ;CDM Federal Programs Corp., Fairfax, VA.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.

Publisher

U.S. Environmental Protection Agency, Office of Research and Development, Risk Reduction Engineering Laboratory,

Place Published

Cincinnati, Ohio :

Year Published

1992

Report Number

EPA/600/R-92/143; EPA-68-03-3409

Stock Number

PB92-207687

OCLC Number

27037080

Subjects

Acoustic monitoring; Land pollution; Pipelines; Leak detectors; Crude oil; Underground storage; Petroleum; Performance evaluation; Pressurizing; Graphs(Charts)

Subject Added Ent

Petroleum pipelines; Leak detectors; Acoustic emission testing

Internet Access

Description	Access URL
	http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=20008OAH.txt

Holdings

Library		Call Number	Additional Info	Location	Date Modified
ERBD		PB92-207687		NERL/ESD-LV Library/Las Vegas,NV	02/23/2001
NTIS		PB92-207687	Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.	NTIS	01/01/1988

Collation

xi, 45 p. : ill. ; 28 cm.

Abstract

The objective of the work was to make an estimate of the accuracy of locating a leak in a pressurized petroleum pipeline, by means of passive acoustic sensors mounted on the outside wall of the pipeline, as a function of leak rate and distance between acoustic sensors. While there are regulatory standards for detection of leaks in underground pressurized pipelines, there are no standards for leak location. For rapid remediation, it would be highly desirable if the leak could be located within 10% of the length of the pipeline in the case of a line longer than 30.5 m (100 ft), or within 3.0 m (10 ft) in the case of a line shorter than 30.5 m (100 ft). This limits the excavation to only a small fraction of the line. As will be shown below, theoretical estimates suggest that the accuracy of the proposed technique should be better than 25 cm. These theoretical estimates, however, assume that the leak signal is large compared to the noise.

Notes

Cover title. "August 1992." Includes bibliographical references (p. 45). Microfiche.

Supplementary Notes

See also DE88008018. Prepared in cooperation with CDM Federal Programs Corp., Fairfax, VA. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.

Author Added Ent

Maresca, J. W.

Corporate Au Added Ent

United States. Environmental Protection Agency. Office of Research and Development. ; Risk Reduction Engineering Laboratory (U.S.) ; Vista Research, Inc.

PUB Date Free Form

{1992}

NTIS Prices

PC A04/MF A01

BIB Level

Medium

microform

OCLC Time Stamp

20010213133224

Cataloging Source

OCLC/T

Language

eng

Origin

OCLC

Type

MERGE

OCLC Rec Leader

01401cam 2200349Ia 45020

OLS : Record

RECORD NUMBER: 49 OF 3573

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