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LI Guangfeng, QU Tingting. Analysis of Fracture Failure of Friction-welded Drill Pipe Joint Used in a Certain Oildfield[J]. STEEL PIPE, 2023, 52(6): 54-58. DOI: 10.19938/j.steelpipe.1001-2311.2023.6.54.58
Citation: LI Guangfeng, QU Tingting. Analysis of Fracture Failure of Friction-welded Drill Pipe Joint Used in a Certain Oildfield[J]. STEEL PIPE, 2023, 52(6): 54-58. DOI: 10.19938/j.steelpipe.1001-2311.2023.6.54.58

Analysis of Fracture Failure of Friction-welded Drill Pipe Joint Used in a Certain Oildfield

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  • Received Date: August 31, 2023
  • Revised Date: October 25, 2023
  • Available Online: January 18, 2024
  • The fracture failure mechanism of a friction-welded drill pipe joint is analyzed by means of macroscopic analysis, physical and chemical property test of the material and both macroscopic and microscopic analyses of the fracture proper. The results demonstrate show that the failure mechanism is the kind of fatigue fracture. The end face of the external thread joint of the drill pipe is mechanically deformed due to collision with some thing, and at the same time, the thread guide surface also has some mechanical deformation during the process of make-up, which leads to the poor engagement state of the thread, and thus reduces the bearing capacity of the joint. During the operation, under the combined action of alternating torsion, axial tensile and compressive stresses, a fatigue crack is first generated at the bottom of the thread where the joint stress is concentrated. And then the crack continuously expands under the action of the alternating loads. When the crack extends to the internal pressure limit position, a washout occurs, while the crack keeps expanding towards both sides. Once the crack expansion gets the effective bearing area reduced to the bearable critical load, a transient fracture of the drill pipe joint happens.
  • [1]
    李鹤林, 李平全, 冯耀荣. 石油钻柱失效分析及预防[M]. 北京:石油工业出版社, 1999.
    [2]
    余世杰, 林元华, 陈猛, 等. 某水平井钻杆管体断裂失效机理分析[J]. 金属热处理, 2019, 44(3):212-218.
    [3]
    龚丹梅, 余世杰, 袁鹏斌, 等. V150高强度钻杆断裂失效分析[J]. 金属热处理, 2015, 40(10):205-210.
    [4]
    刘永刚, 崔顺贤, 路彩虹, 等. 失效分析促进了钻杆结构设计优化[J]. 石油矿场机械, 2010, 39(11):87-90.
    [5]
    李方坡, 刘永刚, 路彩虹, 等. Φ127mm G105钻杆加厚区刺穿失效分析[J]. 石油矿场机械, 2010, 39(11):40-43.
    [6]
    林腾蛟, 李润方, 徐铭宇. 双台阶钻柱螺纹联接弹塑性接触特性数值仿真[J]. 机械设计与研究, 2004(1):48-49, 7.
    [7]
    朱威, 欧阳志英, 舒志强. 120和125钢级钻杆在NACE溶液中腐蚀行为研究[J]. 钢管, 2023, 52(4):70-74.
    [8]
    张然, 王显林, 向桂林, 等. 深层开窗侧钻小井眼专用钻杆的研制与应用[J]. 钢管, 2023, 52(1):36-40.
    [9]
    张然, 王显林, 韩旭, 等. 抗盐水泥浆腐蚀钻杆研制与应用[J]. 钢管, 2022, 51(4):46-49.
    [10]
    余世杰, 徐昌学, 陈猛, 等. 钻杆焊缝侧弯试验样断裂原因分析[J]. 钢管, 2021, 50(2):63-67.
    [11]
    张然, 王显林, 王青林, 等. 超深井用Φ149.2 mm高抗扭钻杆研制与应用[J]. 钢管, 2021, 50(1):23-28.
    [12]
    牛成杰, 张梅梅, 戴树潭, 等. 石油钻杆摩擦焊后内冲技术的探讨[J]. 钢管, 2020, 49(4):32-35.
    [13]
    鲁喜宁, 丁洁琼, 曹晶晶. 钻杆接头螺纹卸扣扭矩影响因素研究[J]. 钢管, 2020, 49(2):58-62.
    [14]
    陈长青, 张晓慧, 王显林, 等. UH165钢级高强度高韧性钻杆材料研究[J]. 钢管, 2019, 48(4):16-20.
    [15]
    张毅, 赵鹏, 王治国, 等. 钻杆内加厚过渡区应力分布的有限元分析[J]. 机械设计与研究, 2001, 30(6):11-15.

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