[1]白強,霍富永,孫彥虎,等.聚乙烯內襯復合油管失效分析[J].石油管材與儀器,2020,6(03):47-50.[doi:10.19459/j.cnki.61-1500/te.2020.03.012]
 BAI Qiang,HUO Fuyong,SUN Yanhu,et al.Failure Analysis of Polyethylene Lined Tubing[J].Petroleum Tubular Goods & Instruments,2020,6(03):47-50.[doi:10.19459/j.cnki.61-1500/te.2020.03.012]
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聚乙烯內襯復合油管失效分析
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《石油管材與儀器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
6
期數:
2020年03期
頁碼:
47-50
欄目:
失效分析與預防
出版日期:
2020-06-20

文章信息/Info

Title:
Failure Analysis of Polyethylene Lined Tubing
文章編號:
2096-0077(2020)03--0047-04
作者:
白強1 霍富永2孫彥虎3魏斌1
1.中國石油集團石油管工程技術研究院,石油管材及裝備材料服役行為與結構安全國家重點實驗室 陜西 西安 710077;2.西安長慶科技工程有限責任公司 陜西 西安 710021; 3.長慶油田分公司第四采油廠 陜西 榆林 718500
Author(s):
BAI Qiang1 HUO Fuyong2 SUN Yanhu3 WEI Bin1
1. State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute,Xi′an,Shaanxi 710077,China;2. Xi′an Changqing Technology & Engineering Co.Ltd., Xi′an,Shaanxi 710021, China;3.No.4 Oil Production Plant,PetroChina Changqing Oilfield Company,Yulin,Shaanxi 718500,China
關鍵詞:
聚乙烯內襯復合油管塌陷失效分析
Keywords:
polyethylene liner composite tubing collapse failure analysis
分類號:
TE358
DOI:
10.19459/j.cnki.61-1500/te.2020.03.012
文獻標志碼:
A
摘要:
由于聚乙烯內襯油管內襯塌陷,導致抽油桿接箍對油管塌陷處產生切削作用,絲條狀的切削物纏繞在泵體上導致卡泵事故發生。為了查明內襯塌陷原因,對現場服役的聚乙烯內襯復合油管進行檢測評價。通過現場調研、理化性能檢測、并結合油管制造和使用情況,明確了油管塌陷失效事故原因。結果表明:由于內襯復合油管管端位置處的內襯翻邊工藝控制不當,在復合油管運行過程中,內襯管隨著所處環境溫度波動而發生熱脹冷縮,但其行為與油管基體熱脹冷縮并不協調,導致端部翻邊處的密封失效。隨著運行時間的增加,更多介質從內襯復合油管管端翻邊處滲漏到夾層間,最終導致其間壓力大于復合管內部壓力而發生內襯坍塌;谑г蚍治,提出了相應的質量控制建議。通過本次失效分析,為今后內襯復合油管生產和應用提供借鑒。
Abstract:
Due to the collapse of the liner of the polyethylene lined tubing, the rod collar has a cutting effect on the collapse of the tubing, and the slip-like cutting winds on the pump body, which leads to the accident of stuck pump. In order to find out the cause of inner liner collapse, the polyethylene lined tubing in service was tested and evaluated. Failure causes were investigated through field investigation, physical and chemical properties testing combined with analysis of the service conditions. Results show that the failure of sealing at flanged end of liner composite tubing due to improper process control is the direct cause of lining tubing collapse. The lining tubing expands and contracts with the fluctuation of the ambient temperature during operation. However, its behavior is not consistent with the thermal expansion and cold contraction of the tubing. With the increase of running time, more media leaks from the flanging of the end of the liner composite tubing to the interlayer. Finally, the inner lining collapse because the pressure is greater than the inner pressure of the composite tubing. Based on the analysis of failure reasons, the corresponding quality control suggestions were put forward. The failure analysis results can also provide reference for the production and application of this kind of tubing in the future.

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備注/Memo

備注/Memo:
第一作者簡介:白強,男,1984年生,高級工程師,2010年畢業于西安交通大學機械工程專業,目前主要從事油井管新產品開發與轉化工作。E-mail:[email protected]
更新日期/Last Update: 2020-06-25
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