Research on Risk Investigation Scheme for Pipeline Girth Welds Based on Orthogonal Experiments
Girth weld of oil and gas pipeline is an important component of the pipeline system.In re-cent years,the quality issue of pipeline girth welds has become increasingly prominent.In order to en-sure the safe,stable,and efficient operation of oil and gas pipelines,various oil and gas pipeline man-agement units have organized risk and quality inspections of pipeline girth welds.However,there are problems of large workload in pipeline girth weld inspection and treatment,low proportion of re-eval-uated defect points,and low inspection efficiency.In order to improve the efficiency of risk inspec-tion,this study takes historical girth weld excavation retest data as the research object,the factors af-fecting the quality of pipeline girth welds are systematically analyzed,takes improving the accuracy of defect welds excavation as the assessment indicator,the orthogonal experimental method is introduced.By analyzing various influencing factors,the main factors that affect the quality of girth welds are identi-fied.The analysis results indicate that the sensitivity of the factors affecting the accuracy of pipeline girth weld excavation is in the order of degree of internal detection anomaly>construction section>level of film repetition>type of weld seam>variable wall thickness.By constructing an optimization model for girth weld excavation,it has guiding significance for further improving the efficiency of pipeline girth weld inspection.
oil and gas pipelinesgirth weldsorthogonal experimentlose efficacyrisk investigation
万方数据
维普
