高尺寸精度深水钻井隔水管用直缝埋弧焊管性能研究

为了适应恶劣深海服役工况和复杂作业因素对深水钻井隔水管力学性能及外观尺寸精度的严格要求,研制了X80钢级Φ533.4 mm×25.4 mm深水钻井隔水管用直缝埋弧焊管,并按照相关标准要求对试制钢管的力学性能和外观几何尺寸进行了检测。检测结果表明,试制钢管不但具有高强度、强低温韧性及低硬度等特点,而且钢管的直径、椭圆度、壁厚、直线度等外观几何尺寸也得到严格控制,钢管的力学性能和尺寸精度均达到研制目标要求。

Performance Research on Longitudinal Submerged Arc Welded Pipe with High Dimensional Accuracy Used for Deepwater Drilling Riser

In order to adapt to the strict requirements of inclement deep sea service condition and complex operation factors on deep-water drilling riser mechanical properties and appearance of dimensional accuracy,it developed X80 grade Φ 533.4 mm ×25.4 mm deep-water drilling riser longitudinal submerged arc welded pipe,and in accordance with the relevant standards requirements conducted detection for the mechanical properties of trial-manufactured steel pipe and appearance geometric dimensions.Test results showed that the trial-manufactured steel pipe not only possesses the characteristics of high strength,strong low temperature toughness,low hardness etc.,but also the pipe diameter,ovality,wall thickness,straightness,and appearance geometric dimensions all be strictly controlled.The mechanical properties of steel pipe and dimensional accuracy reached development goal requirement.