[1]葛明君,徐欣.139.7mm減摩減扭短節斷裂原因分析[J].石油管材與儀器,2019,5(03):42-44.[doi:10.19459/j.cnki.61-1500/te.2019.03.010]
 GE Mingjun,XU Xin.Analysis of Fracture Causes of the 139.7 mm Reducing Friction and Reducing Torsion Joint[J].Petroleum Tubular Goods & Instruments,2019,5(03):42-44.[doi:10.19459/j.cnki.61-1500/te.2019.03.010]
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139.7mm減摩減扭短節斷裂原因分析
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《石油管材與儀器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
5
期數:
2019年03期
頁碼:
42-44
欄目:
失效分析與預防
出版日期:
2019-06-20

文章信息/Info

Title:
Analysis of Fracture Causes of the 139.7 mm Reducing Friction and Reducing Torsion Joint
文章編號:
2096-0077(2019)03--0042-03
作者:
葛明君徐欣
中國石油集團石油管工程技術研究院 陜西 西安 710077
Author(s):
GE Mingjun XU Xin
CNPC Tubular Goods Research Institute,Xi′an,Shaanxi 710077,China
關鍵詞:
減摩減扭短節斷裂
Keywords:
reducing friction and reducing torsion joint fracture
分類號:
TE921
DOI:
10.19459/j.cnki.61-1500/te.2019.03.010
文獻標志碼:
A
摘要:
國內某油田井下使用的一根Φ139.7 mm減摩減扭短節發生了斷裂失效,為了確定該短節的斷裂失效原因及預防此類失效事故,對該油井的工況和鉆具使用情況進行了調查,對斷裂短節斷口的宏觀形貌特征進行了分析,并取樣試驗分析了其材料的化學成分和力學性能,分析了其材料的金相組織形貌,并對這些試驗結果進行了綜合分析,從而確定了該減摩減扭短節斷裂的原因是:斷裂失效短節材料的金相組織中存在大量的珠光體和鐵素體,且其材料的力學性能不符合標準的要求。
Abstract:
Fracture failure of a Φ139.7 mm reducing friction and reducing torsion joint used in downhole of an oil field in china occurred. In order to determine the fracture failure causes of the joint and prevent such failure accident, the macroscopic morphology characteristics of fracture surface of the joint were analyzed, the chemical composition and mechanical properties of the material were analyzed by sampling test, the metallographic morphology of the material was examined. The results of these tests were analyzed synthetically, then the causes for the fracture of the reducing friction and reducing torsion joint were determined: There are a lot of pearlite and ferrite in the metallographic structure of the fracture failure joint material, and the mechanical properties of the material do not conform to the requirements of the standard.

參考文獻/References:

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備注/Memo

備注/Memo:
第一作者簡介:葛明君,男,1965年生,1988年畢業于 北京 航空航天大學金屬材料專業,獲學士學位,現主要從事石油管材質量檢驗、科研和失效分析等技術論文編輯工作。E-mail:[email protected]
更新日期/Last Update: 2019-06-25
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