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为了提高管道内检测数据的利用率，对内检测数据进行充分挖掘，结合国内外长输管道内检测数据对比方法，分析了在关键点对齐过程中可能出现的问题并提出了解决方法，总结了关键点对齐的步骤。在焊缝、弯头及阀门等关键点对齐的情况下，两轮内检测数据进行缺陷匹配（包括腐蚀、制造缺陷、凹陷、裂纹及其他缺陷）的主要依据是相对里程、钟点方向及表面位置这 3 个位置要素。根据缺陷增长速率可以将缺陷划分为活性缺陷点、非活性缺陷点、新增缺陷点及其他缺陷点 4类。通过对某长输管道的两次内检测数据进行对比分析，确定了缺陷位置，并估算了缺陷增长速率，为管道运营单位的决策提供了帮助。
In order to improve the utilization rate of the test data in the pipeline and fully excavate the test data, combined with the test data comparison method in the long-distance pipeline at home and abroad, the problems that may appear during the alignment of the key points are analyzed and the solutions are provided, Point alignment steps. In the case of key points such as welds, elbows and valves, the basis for the defect matching (including corrosion, manufacturing defects, pits, cracks and other defects) in the two rounds of test data is relative mileage, direction of the clock and surface location These 3 location elements. According to the rate of defect growth, defects can be divided into four types: active defect, inactive defect, newly added defect and other defects. By comparing and analyzing the two internal inspection data of a long-distance pipeline, the defect location was determined and the rate of defect growth was estimated, which helped the decision-making of pipeline operators.