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Relining of pipelines for natural gas distribution (Swage-lining); Renovering av befintliga ledningsnaet foer gasdistribution med hjaelp av Swage-lining

Technical Report:

Abstract

Pressure testing during almost two years have shown that Swage-lined test pipes have good long-life properties. There are, however, certain indications that Swage-lined pipes have a somewhat shorter long-time strength. The reason may be scratches that arises during the lining process. The scratches are not judged as life-time limiting as long as they are not deeper than 1 mm. Inner stress measurements shows large differences between Swage-lined and not Swage-lined pipes. For Swage-lined pipes the maximum tangential inner stress in the pipe wall have completely disappeared, at the same time as high axial inner stresses are measured (large relative decrease in length). 12 refs
Authors:
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
STUDSVIK-M-94-131
Reference Number:
SCA: 420500; 360603; PA: SWD-94:007033; EDB-95:030728; SN: 95001320520
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE; PIPELINES; LINING PROCESSES; RETROFITTING; NATURAL GAS DISTRIBUTION SYSTEMS; TOWN GAS; MATERIALS TESTING; STRESSES; BENCH-SCALE EXPERIMENTS; POLYETHYLENES; CRACKS; PRESSURE DEPENDENCE; EXPERIMENTAL DATA; 420500; 360603; MECHANICAL PROPERTIES
OSTI ID:
10114443
Research Organizations:
Studsvik Material AB, Nykoeping (Sweden)
Country of Origin:
Sweden
Language:
Swedish
Other Identifying Numbers:
Other: ON: DE95737678; TRN: SE9407033
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
52 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Leijstroem, H. Relining of pipelines for natural gas distribution (Swage-lining); Renovering av befintliga ledningsnaet foer gasdistribution med hjaelp av Swage-lining. Sweden: N. p., 1994. Web.
Leijstroem, H. Relining of pipelines for natural gas distribution (Swage-lining); Renovering av befintliga ledningsnaet foer gasdistribution med hjaelp av Swage-lining. Sweden.
Leijstroem, H. 1994. "Relining of pipelines for natural gas distribution (Swage-lining); Renovering av befintliga ledningsnaet foer gasdistribution med hjaelp av Swage-lining." Sweden.
@misc{etde_10114443,
title = {Relining of pipelines for natural gas distribution (Swage-lining); Renovering av befintliga ledningsnaet foer gasdistribution med hjaelp av Swage-lining}
author = {Leijstroem, H}
abstractNote = {Pressure testing during almost two years have shown that Swage-lined test pipes have good long-life properties. There are, however, certain indications that Swage-lined pipes have a somewhat shorter long-time strength. The reason may be scratches that arises during the lining process. The scratches are not judged as life-time limiting as long as they are not deeper than 1 mm. Inner stress measurements shows large differences between Swage-lined and not Swage-lined pipes. For Swage-lined pipes the maximum tangential inner stress in the pipe wall have completely disappeared, at the same time as high axial inner stresses are measured (large relative decrease in length). 12 refs}
place = {Sweden}
year = {1994}
month = {Oct}
}