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Review of pipe freezing (freeze sealing) offshore

Review of pipe freezing (freeze sealing) offshore
Review of pipe freezing (freeze sealing) offshore
Pipe freezing (freeze sealing) is a technique which can be used on liquid filled pipes and pipelines to produce a solid, pressure resistant, frozen plug. Such plugs can be used for temporary isolation of a section of pipe or a fitting to allow repair, maintenance or modification, such as changing valves or fittings, extension blanking of pipework, and pressure testing.

The application of pipe freezing as an isolation procedure offshore should comply with recognised safety procedures, especially in the handling of cryogenic materials. It should also conform to offshore safety procedures. At present, no statutory codes or standard exist for the application of pipe freezing.

This document discusses the factors which should be considered when applying the technique offshore. The basic principles of pipe freezing are described in Appendix I.
OTO 97 011
Health and Safety Executive
Bowen, R.J.
157b6e67-cea0-4f6d-9f19-df219af0a184
Keary, A.C.
188a4da5-f156-4f75-8a09-7a4e273cd2ae
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Bowen, R.J.
157b6e67-cea0-4f6d-9f19-df219af0a184
Keary, A.C.
188a4da5-f156-4f75-8a09-7a4e273cd2ae
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88

Bowen, R.J., Keary, A.C. and Syngellakis, S. (1997) Review of pipe freezing (freeze sealing) offshore (Offshore Technology Report, OTO 97 011) Sheffield, UK. Health and Safety Executive 10pp.

Record type: Monograph (Project Report)

Abstract

Pipe freezing (freeze sealing) is a technique which can be used on liquid filled pipes and pipelines to produce a solid, pressure resistant, frozen plug. Such plugs can be used for temporary isolation of a section of pipe or a fitting to allow repair, maintenance or modification, such as changing valves or fittings, extension blanking of pipework, and pressure testing.

The application of pipe freezing as an isolation procedure offshore should comply with recognised safety procedures, especially in the handling of cryogenic materials. It should also conform to offshore safety procedures. At present, no statutory codes or standard exist for the application of pipe freezing.

This document discusses the factors which should be considered when applying the technique offshore. The basic principles of pipe freezing are described in Appendix I.

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Published date: 1997

Identifiers

Local EPrints ID: 21114
URI: http://eprints.soton.ac.uk/id/eprint/21114
PURE UUID: 7f6db320-2afc-4c0c-8997-84eb6434aeb1

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Date deposited: 14 Mar 2007
Last modified: 15 Mar 2024 06:28

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Contributors

Author: R.J. Bowen
Author: A.C. Keary
Author: S. Syngellakis

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