FIELD: testing.
SUBSTANCE: invention relates to the field of inline diagnostics of pipelines. The method for identifying developing defects in main pipelines includes determining a criterion for identifying developing defects, performing inline diagnostics of the main pipeline by passing inline inspection apparatuses (IIAs), determining, based on the received information, the value of a signal parameter from a defect corresponding to the criterion for identifying developing defects, selected for determination; comparing the value of the signal parameter from the defect with the value of the corresponding signal parameter from the defect of the previous IIA passing; identifying the difference between these values; comparing the difference with the criterion for identifying developing defects. If the value of the difference between the signal parameter from the defect and the value of the corresponding signal parameter from the defect of the previous IIA passing corresponds to the criterion for identifying developing defects, the defect is assumed to be developing.
EFFECT: increased accuracy of determining the overhaul period of a main pipeline is provided.
2 cl, 3 dwg, 1 tbl
| Title | Year | Author | Number |
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| METHOD OF MEASUREMENT ERROR COMPENSATION OF COVERED DISTANCE BY PID ODOMETRIC SYSTEM BRINGING DIAGNOSTIC DATA TO RATED LENGTHS OF PIPE SECTIONS | 2015 |
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| TESTING OF IN-PIPE INSPECTION INSTRUMENT AT CIRCULAR PIPELINE SITE | 2012 |
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| DIAGNOSTIC COMPLEX FOR DETERMINATION OF PIPELINE POSITION, AND METHOD FOR DETERMINING RELATIVE DISPLACEMENT OF PIPELINE AS PER RESULTS OF TWO AND MORE INSPECTION PASSES OF DIAGNOSTIC COMPLEX FOR DETERMINATION OF PIPELINES POSITION | 2013 |
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| METHOD OF DETERMINING SIGNAL FROM PIPE WALL ACCORDING TO POWER LINES STATISTICS PID CD DATA | 2018 |
|
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| METHOD FOR PROCESSING RESULTS OF INLINE DIAGNOSTIC ANALYSES OF MAIN PIPELINES PERFORMED BY COMBINED NONDESTRUCTIVE TESTING METHODS, TAKING INTO ACCOUNT DESIGN CHARACTERISTICS OF INLINE INSPECTION TOOL (IIT), SPEED OF MOVEMENT AND CHANGE IN IIT ANGULAR POSITION | 2015 |
|
RU2639466C2 |
| METHOD FOR IN-PIPE DIAGNOSTICS OF PIPELINE TECHNICAL STATE | 2018 |
|
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| METHOD OF TRANSFORMING DIAGNOSTIC DATA FOR INTRA-TUBE INSPECTIONS OF MAIN PIPELINES OPERATING IN REVERSE MODE INTO VIEW ALLOWING INTERPRETATION WITH USING DATA OF PREVIOUS INSPECTIONS CONDUCTED DURING OIL PIPELINE OPERATION IN DIRECT MODE | 2015 |
|
RU2617612C1 |
| METROLOGICAL GROUND | 2016 |
|
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| STAND FOR TESTING, CALIBRATION AND CALIBRATION OF IN-LINE INSPECTION INSTRUMENTS | 2019 |
|
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| METHOD OF DETERMINING ACCURATE VOLUME OF REMOTE METAL OF CORROSION DEFECTS BY ULTRASONIC ILI DATA | 2015 |
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RU2607359C1 |
