Research on Status Quo and Problems of Abandoned Disposal Technology of Oil and Gas Pipelines
At present,the research on the disposal of oil and gas pipelines in China is still ininitial stage,and there is no complete technical system and standard.Based on this,firstly,the relevant standards,regulations and judgment basis for the disposal of oil and gas pipelines at home and abroad were briefly described,and then the technical key points of residue cleaning and cleanness evaluation,removal of pipelines and accessories,nitrogen injection,grouting of pipelines,subsection isolation,and monitoring and maintenance after abandonment were expounded.Finally,combined with the engineering practice,the methods of pipeline dismantling and abandonment,in-situ abandonment and their disposal technologies were compared and analyzed,and the application occasions and suggested practices of pipeline disposal technologies were expounded.This paper provides reference for the safety,environmental protection,high efficiency and low cost disposal of domestic abandoned oil and gas pipelines.
oil and gas pipelinefull life cycle managementwaste disposaldemolish and abandonin-situ abandonment