CA2293500C - Procede de detection de corrosion dans des pipelines et analogue par analyse comparative d'impulsions de propagation - Google Patents
Procede de detection de corrosion dans des pipelines et analogue par analyse comparative d'impulsions de propagation Download PDFInfo
- Publication number
- CA2293500C CA2293500C CA2293500A CA2293500A CA2293500C CA 2293500 C CA2293500 C CA 2293500C CA 2293500 A CA2293500 A CA 2293500A CA 2293500 A CA2293500 A CA 2293500A CA 2293500 C CA2293500 C CA 2293500C
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- wave form
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- Prior art date
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- Expired - Fee Related
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- 230000007797 corrosion Effects 0.000 title claims abstract description 79
- 238000005260 corrosion Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000000052 comparative effect Effects 0.000 title description 2
- 239000002131 composite material Substances 0.000 claims description 59
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000010363 phase shift Effects 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 23
- 230000009977 dual effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000003111 delayed effect Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 210000003127 knee Anatomy 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 238000013142 basic testing Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
L'invention concerne un procédé de détection de corrosion sur un élément allongé (10) tel qu'un tuyau (10). Des impulsions électriques lointaines et proches sont transmises dans un tuyau (10) magnétiquement perméable à des endroits espacés de façon à se déplacer les unes vers les autres. Ces impulsions sont synchronisées de manière à se recouper en divers endroits sur le tuyau (10). Les formes d'ondes qui en résultent sont analysées par combinaison de formes d'ondes adjacentes résultant de l'intersection d'impulsions à des endroits espacés. On analyse deux formes d'ondes combinées en soustrayant l'un de l'autre de façon à produire une forme d'onde de différence, et on compare les formes d'ondes de différence pour détecter la corrosion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4866097P | 1997-06-04 | 1997-06-04 | |
| US60/048,660 | 1997-06-04 | ||
| PCT/US1998/011683 WO1998055877A1 (fr) | 1997-06-04 | 1998-06-04 | Procede de detection de corrosion dans des pipelines et analogue par analyse comparative d'impulsions de propagation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2293500A1 CA2293500A1 (fr) | 1998-12-10 |
| CA2293500C true CA2293500C (fr) | 2010-12-14 |
Family
ID=21955747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2293500A Expired - Fee Related CA2293500C (fr) | 1997-06-04 | 1998-06-04 | Procede de detection de corrosion dans des pipelines et analogue par analyse comparative d'impulsions de propagation |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0998678A4 (fr) |
| AU (1) | AU7954598A (fr) |
| CA (1) | CA2293500C (fr) |
| WO (1) | WO1998055877A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004102056A2 (fr) | 2003-05-06 | 2004-11-25 | Profile Technologies, Inc. | Systemes et procedes de test non destructif d'elements conducteurs au moyen de la retrodiffusion electromagnetique |
| US9207192B1 (en) | 2009-03-19 | 2015-12-08 | Wavetrue, Inc. | Monitoring dielectric fill in a cased pipeline |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3511076A1 (de) * | 1985-03-27 | 1986-10-09 | Kopp AG International Pipeline Services, 4450 Lingen | Molch fuer elektromagnetische pruefungen an rohrleitungswandungen aus stahl sowie verfahren hierzu |
| US4970467A (en) * | 1989-04-27 | 1990-11-13 | Burnett Gale D | Apparatus and method for pulse propagation analysis of a pipeline or the like |
| US5243294A (en) * | 1991-10-25 | 1993-09-07 | Pipeline Profiles, Ltd. | Methods of and apparatus for detecting the character and location of anomalies along a conductive member using pulse propagation |
| US5189374A (en) * | 1991-10-25 | 1993-02-23 | Burnett Gale D | Method for pulse propagation analysis of a well casing or the like by transmitted pulse interaction |
| US5270661A (en) * | 1991-10-25 | 1993-12-14 | Pipeline Profiles, Ltd. | Method of detecting a conductor anomaly by applying pulses along the conductor in opposite directions |
| DE4141123C1 (fr) * | 1991-12-13 | 1993-03-18 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De | |
| DE69610907D1 (de) * | 1995-03-14 | 2000-12-14 | Profile Technologies Inc | Reflektometrieverfahren für isolierte Röhren |
-
1998
- 1998-06-04 CA CA2293500A patent/CA2293500C/fr not_active Expired - Fee Related
- 1998-06-04 WO PCT/US1998/011683 patent/WO1998055877A1/fr not_active Ceased
- 1998-06-04 AU AU79545/98A patent/AU7954598A/en not_active Abandoned
- 1998-06-04 EP EP98930074A patent/EP0998678A4/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| AU7954598A (en) | 1998-12-21 |
| EP0998678A1 (fr) | 2000-05-10 |
| WO1998055877A1 (fr) | 1998-12-10 |
| CA2293500A1 (fr) | 1998-12-10 |
| EP0998678A4 (fr) | 2002-02-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180604 |