RU2006108592A - METHOD FOR DETERMINING THE AVAILABILITY AND AREA OF EQUIVALENT DAMAGE IN THE INSULATION COVERING OF THE UNDERGROUND PIPELINE - Google Patents

METHOD FOR DETERMINING THE AVAILABILITY AND AREA OF EQUIVALENT DAMAGE IN THE INSULATION COVERING OF THE UNDERGROUND PIPELINE Download PDF

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RU2006108592A
RU2006108592A RU2006108592/28A RU2006108592A RU2006108592A RU 2006108592 A RU2006108592 A RU 2006108592A RU 2006108592/28 A RU2006108592/28 A RU 2006108592/28A RU 2006108592 A RU2006108592 A RU 2006108592A RU 2006108592 A RU2006108592 A RU 2006108592A
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Russia
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pipeline
area
equivalent damage
determining
cathodic protection
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RU2006108592/28A
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Russian (ru)
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RU2315329C1 (en
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Николай Денисович Цхада (RU)
Николай Денисович Цхадая
Александр Сергеевич Кузьбожев (RU)
Александр Сергеевич Кузьбожев
Руслан Викторович Агиней (RU)
Руслан Викторович Агиней
Анастаси Николаевна Зорина (RU)
Анастасия Николаевна Зорина
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Государственное образовательное учреждение высшего профессионального образовани Ухтинский государственный технический университет (RU)
Государственное образовательное учреждение высшего профессионального образования Ухтинский государственный технический университет
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Priority to RU2006108592/28A priority Critical patent/RU2315329C1/en
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  • Prevention Of Electric Corrosion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Claims (1)

Способ определения наличия и площади эквивалентного повреждения в изоляционном покрытии подземного сооружения, включающий измерение с помощью двух электродов сравнения падения напряжения ΔU в грунте, установленных на расстоянии y по линии перпендикулярной оси трубопровода, отличающийся тем, что определяют глубину залегания оси трубопровода в месте измерения h, с поверхности земли над трубопроводом измеряют удельное электрическое сопротивление грунта ρ с помощью четырехэлектродной схемы, располагая электроды по линии, перпендикулярной трубопроводу, определяют силу тока на выходе двух установок катодной защиты I1 и I2, между которыми производят измерения, минимальное расстояние от анодных заземлений установок катодной защиты до трубопровода a1 и a2, расстояние от места измерений до места подключения установок катодной защиты к трубопроводу x1 и x2, а площадь эквивалентного повреждения Sпов определяют по формулеA method for determining the presence and area of equivalent damage in the insulation coating of an underground structure, including measuring, with the help of two electrodes, a comparison of the voltage drop ΔU in the soil, installed at a distance y along the line perpendicular to the axis of the pipeline, characterized in that they determine the depth of the axis of the pipeline at the measurement location h, from the earth's surface above the pipeline measure the electrical resistivity of the soil ρ using a four-electrode circuit, placing the electrodes in a line perpendicular oh the pipeline, determine the current strength at the output of the two cathodic protection installations I 1 and I 2 , between which measurements are made, the minimum distance from the anode earths of the cathodic protection installations to the pipeline a 1 and a 2 , the distance from the measurement location to the connection point of the cathodic protection installations to the pipeline x 1 and x 2 , and the area of equivalent damage S pov is determined by the formula
Figure 00000001
Figure 00000001
 где ϕ - коэффицент, определяемый для данного диаметра трубопровода и типа изоляционного покрытия, по результатам контрольного откапывания.where ϕ is the coefficient determined for a given diameter of the pipeline and the type of insulation coating, according to the results of control digging.
RU2006108592/28A 2006-03-21 2006-03-21 Method of detecting damage of insulation of underground pipeline RU2315329C1 (en)

Priority Applications (1)

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RU2006108592/28A RU2315329C1 (en) 2006-03-21 2006-03-21 Method of detecting damage of insulation of underground pipeline

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RU2006108592/28A RU2315329C1 (en) 2006-03-21 2006-03-21 Method of detecting damage of insulation of underground pipeline

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RU2006108592A true RU2006108592A (en) 2007-09-27
RU2315329C1 RU2315329C1 (en) 2008-01-20

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Publication number Priority date Publication date Assignee Title
RU2566112C2 (en) * 2014-03-04 2015-10-20 Общество с ограниченной ответственностью "ТЁПЛО" Method for determining heat pipeline leakage point
CN108663408B (en) * 2018-05-18 2021-02-09 中国石油天然气集团有限公司 Method for determining breakage rate of steel oil and gas pipeline directional drilling anticorrosive coating

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