RU2013131066A - METHOD FOR DETECTING LOCAL METAL DEFECTS OF UNDERGROUND PIPELINE - Google Patents

METHOD FOR DETECTING LOCAL METAL DEFECTS OF UNDERGROUND PIPELINE Download PDF

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Publication number
RU2013131066A
RU2013131066A RU2013131066/28A RU2013131066A RU2013131066A RU 2013131066 A RU2013131066 A RU 2013131066A RU 2013131066/28 A RU2013131066/28 A RU 2013131066/28A RU 2013131066 A RU2013131066 A RU 2013131066A RU 2013131066 A RU2013131066 A RU 2013131066A
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RU
Russia
Prior art keywords
pipeline
magnetic field
defects
depth
location
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RU2013131066/28A
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Russian (ru)
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RU2536778C1 (en
Inventor
Александ Федорович Пужайло
Сергей Викторович Савченков
Руслан Викторович Агиней
Евгений Апполинарьевич Спиридович
Валерий Викторович Мусонов
Сергей Сергеевич Гуськов
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Открытое акционерное общество "Гипрогазцентр"
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Priority to RU2013131066/28A priority Critical patent/RU2536778C1/en
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Publication of RU2536778C1 publication Critical patent/RU2536778C1/en
Publication of RU2013131066A publication Critical patent/RU2013131066A/en

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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

Способ выявления локальных дефектов металла подземного трубопровода, изготовленного из ферромагнитного материала, включающий измерение индукции магнитного поля над осью трубопровода и глубины заложения трубопровода с определенным шагом, определение расположения источников аномалий магнитного поля, отличающийся тем, что на основании проектной или эксплуатационной документации получают дополнительную информацию о местоположении кольцевых сварных швов трубопровода, шаг измерений выбирают исходя из глубины заложения трубопровода, расчетным путем определяют индукцию магнитного поля, создаваемую элементами трубопровода, ограниченными кольцевыми сварными швами, по величине отклонения значений, полученных в результате измерений индукции магнитного поля трубопровода, от расчетных значений, судят о наличии дефектов.A method for detecting local metal defects in an underground pipeline made of ferromagnetic material, including measuring the magnetic field induction over the axis of the pipeline and the depth of the pipeline with a certain step, determining the location of the sources of magnetic field anomalies, characterized in that additional information is obtained on the basis of the design or operational documentation the location of the annular welds of the pipeline, the measurement step is selected based on the depth of the pipeline, aschetnym determined by induction of the magnetic field created by the pipeline elements bounded annular welds, largest deviation values derived from the measurements of the magnetic field induction pipe, from the calculated values, the presence of defects is judged.

Claims (1)

Способ выявления локальных дефектов металла подземного трубопровода, изготовленного из ферромагнитного материала, включающий измерение индукции магнитного поля над осью трубопровода и глубины заложения трубопровода с определенным шагом, определение расположения источников аномалий магнитного поля, отличающийся тем, что на основании проектной или эксплуатационной документации получают дополнительную информацию о местоположении кольцевых сварных швов трубопровода, шаг измерений выбирают исходя из глубины заложения трубопровода, расчетным путем определяют индукцию магнитного поля, создаваемую элементами трубопровода, ограниченными кольцевыми сварными швами, по величине отклонения значений, полученных в результате измерений индукции магнитного поля трубопровода, от расчетных значений, судят о наличии дефектов. A method for detecting local metal defects in an underground pipeline made of ferromagnetic material, including measuring the magnetic field induction over the axis of the pipeline and the depth of the pipeline with a certain step, determining the location of the sources of magnetic field anomalies, characterized in that additional information is obtained on the basis of the design or operational documentation the location of the annular welds of the pipeline, the measurement step is selected based on the depth of the pipeline, aschetnym determined by induction of the magnetic field created by the pipeline elements bounded annular welds, largest deviation values derived from the measurements of the magnetic field induction pipe, from the calculated values, the presence of defects is judged.
RU2013131066/28A 2013-07-05 2013-07-05 Method of detection of local defects of metal of buried pipeline RU2536778C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2013131066/28A RU2536778C1 (en) 2013-07-05 2013-07-05 Method of detection of local defects of metal of buried pipeline

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Application Number Priority Date Filing Date Title
RU2013131066/28A RU2536778C1 (en) 2013-07-05 2013-07-05 Method of detection of local defects of metal of buried pipeline

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RU2536778C1 RU2536778C1 (en) 2014-12-27
RU2013131066A true RU2013131066A (en) 2015-01-10

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2687177C1 (en) * 2018-07-17 2019-05-07 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" Method of detecting and classification a signal in control systems
CN108956758A (en) * 2018-08-20 2018-12-07 北京西管安通检测技术有限责任公司 A kind of pipe welding line detecting method and device
CN109613110A (en) * 2019-02-20 2019-04-12 武汉地大华睿地学技术有限公司 A kind of method of contactless three source magnetic field comprehensive detection metallic conduit defect

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2095804C1 (en) * 1996-02-09 1997-11-10 Геннадий Степанович Шелихов Device for magnetic flaw detection
RU2157514C1 (en) * 1999-09-20 2000-10-10 ЗАО "Нефтегазкомплектсервис" Process and gear for technical diagnostics of cross-country pipe-line
RU2264617C2 (en) * 2001-05-23 2005-11-20 Горошевский Валерий Павлович Method for non-contact detection of position and type of defects of metallic structures and device for realization of said method
CA2566933C (en) * 2006-10-17 2013-09-24 Athena Industrial Technologies Inc. Inspection apparatus and method
DE102011079261A1 (en) * 2011-07-15 2013-01-17 Hilti Aktiengesellschaft Apparatus and method for detecting a power line in a ground

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