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Edition and Publication:
< Natural Gas and Oil > Editorial Department
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China Petroleum Engineering & Construction Corporation
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Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
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Postal Code:
610041
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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2013 Vol.5

    Pigging Technology before Online Inner Inspection on Long-distance Gas Pipeline
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    Key Words：Long-distance gas pipeline； Inner inspection； Sichuan-East gas pipeline； Pigging operation； Pigging technology
    Abstract： In order to ensure that high-quality testing data are collected by geometric and magnetic flux leakage detection in inner inspection，it is necessary to conduct pigging operation before inner inspection on long-distance gas pipeline so as to inspect pipeline interior passability，reduce blockage risk，clean dirt out from pipeline and improve the accuracy of inner inspection operation. Up to now，no specific pigging requirements are specified in relative literatures at home and abroad before online inner inspection operation. Summarized and analyzed are characteristics of all kinds of conventional pigs and proposed firstly are technical parameters of pigs before inner inspection and described are the pigging procedure，qualify standards for each stage，pig launching，pig monitoring and tracking and pig receiving，which forms a set of pigging technology before online detection on long-distance gas pipeline.
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