Aimed at pipe ultrasonic inspection flaw identification problem,with the view of data mining,a novel method based on SVM(support vector machine) for automatic oil pipeline flaw identification is studied.
The X70 helical welding steel pipe with φ1016×17.5 mm used for petroleum pipeline would be used to substitute the intervolve welding Q345 alloy steel pipe with φ1000×16 mm for the arch ribs in the large scale reinforced concrete bridge.
X 70石油管线钢1016×17.5 mm螺旋焊接钢管可以替代Q 345低合金钢1000×16 mm卷制焊接钢管,用于特大桥钢管混凝土拱肋。
The petroleum pipeline is the lifeline in the development and utilize of oil gas resources. Whether its security or not is influencing the development of petroleum industry, living beings and environment directly.
The damage and defect will reduce the bearing capacity of the petroleum pipeline greatly, shorten the service life of the pipeline and threaten the security of the petroleum pipeline and biotic environment.
This paper presents a numerical method for shape optimization in elestic contact problem by combining the Finite Element Method and shape optimization of continuing body. Using the previous method we successfully analysed and designed a new tapal closure of crude petroleum pipelines.
Oil well pipeline made of this technology has excellent corrosion-resisting properties. It is especially sutible for tubing in intensified oil production, waste water disposal pipeline, waterflood,oil-transferring pipelines and casing etc.
The reason for excess concentration of various heavy metals is the industrial activities and petroleum pipelines and salinity levels show the sea water intrusion.
Models have been derived for engineering and forecasting purposes as regards the working life of welded petroleum pipelines.
Quality of the inner surface of petroleum pipelines
Of particular concern are leaking petroleum pipelines that traverse the port and on-shore areas and may be crossed by the project pipelines.
Petroleum pipelines extend into southeastern Yukon and southwestern Northwest Territories.
This paper presents a numerical method for shape optimization in elestic contact problem by combining the Finite Element Method and shape optimization of continuing body. Using the previous method we successfully analysed and designed a new tapal closure of crude petroleum pipelines. The paper describes the algorithm method in details and gives results of the closure optimum design.
This paper deals with the application of shape optimization method for elastic contact to the structure analysis and shape pptimizatipn of the quick-opening lock ring closure used for oil pipelines,which, has arrived at a more satisfactory result. The structure of closure optimized is more reasonable, with its safety coefficient somewhat increased.
With consideration of China-made x60 steel pipes and SGH electrodes, this paper presents a brief discussion about the necessity and feasibility of applying the demestic products of pipes and electrodes in oil industry.