Main Problems with the Oil&Gas Pipelines Construction Equipments

The information from pipeline construction sites indicates that there exists many important problems with the pipeline construction equipment,which restrict piping construction speed and level.Therefore,through field and professional pipeline construction investigations,the main problems with long-distance oilgas pipelines construction equipment are summarized in some aspects,including pipeline construction in marsh thawing permafrost,cold area,mountainous areas and pipe cutting,etc.Then,the direction of research on pipeline techniques and equipment is proposed,which can be followed as reference to improving the pipeline construction level and pointing out the direction of research on pipeline construction.