[1]鮮 寧,等.連續油管在酸性環境下的彎曲疲勞壽命研究[J].焊管,2020,43(1):15-19.[doi:10.19291/j.cnki.1001-3938.2020.01.003]
 XIAN Ning,JIANG Fang,et al.Research on the Bend Fatigue Life of the Coiled Tubing Exposed to Sour Environments[J].,2020,43(1):15-19.[doi:10.19291/j.cnki.1001-3938.2020.01.003]
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連續油管在酸性環境下的彎曲疲勞壽命研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
43
期數:
2020年第1期
頁碼:
15-19
欄目:
試驗與研究
出版日期:
2020-01-28

文章信息/Info

Title:
Research on the Bend Fatigue Life of the Coiled Tubing Exposed to Sour Environments
文章編號:
10.19291/j.cnki.1001-3938.2020.01.003
作者:
鮮 寧1 2姜 放1榮 明1 2張 平3鄒先雄3崔 磊1 2
1. 中國石油集團管力學與環境重點實驗室四川分室, 成都 610041;
 2. 中國石油工程建設公司西南分公司, 成都 610041;
 3. 中國石油川慶鉆探工程公司, 成都 610051
Author(s):
XIAN Ning1 2 JIANG Fang1 RONG Ming1 2 ZHANG Ping3 ZOU Xianxiong3 CUI Lei1 2
1. Sichuan Research Division of CNPC Key Lab for Mechanical and Environment Behavior of Tubular Goods, Chengdu 610041,China;
2. China Petroleum Engineering & Construction Corp, Southwest company, Chengdu 610041,China;
3. CNPC Chuanqing Drilling Engineering Company Limited , Chengdu 610051,China
關鍵詞:
連續油管彎曲腐蝕疲勞H2S
Keywords:
coiled tubing bend corrosion fatigue H2S
分類號:
TG174.3
DOI:
10.19291/j.cnki.1001-3938.2020.01.003
文獻標志碼:
A
摘要:
為了準確評價連續油管在酸性環境下的腐蝕疲勞壽命,對CT80鋼級Φ38.1 mm×3.18 mm的連續油管管段在不同條件下進行了彎曲腐蝕疲勞試驗。結果顯示:經過酸性腐蝕環境的浸泡后,連續油管的彎曲疲勞壽命顯著下降,約為大氣環境下彎曲疲勞壽命的34.6%~45.2%,其平均值約為39.7%;對于未出現HIC的連續油管,在酸性腐蝕環境下起下不同井次后,連續油管的總疲勞壽命相近。連續油管經腐蝕浸泡取出在大氣環境中放置24 h后,氫原子從連續油管管體溢出,塑性部分回升,約為大氣環境下彎曲疲勞壽命的68.9%。
Abstract:
In order to accurately evaluate the corrosion fatigue life of the coiled tubing in acid environment,CT80 steel Φ38.1 mm×3.18 mm of the coiled tubing section bending corrosion fatigue tests have been carried out under different conditions. The results showed that the bending fatigue life of the coiled tubing decreased significantly after immersing in acid corrosion environment,which was about 34.6%~45.2% of the bending fatigue life in atmospheric environment, and the average value was about 39.7%. For the coiled tubing without HIC,the total fatigue life of the coiled tubing was similar after the different well runs in acid corrosion conditions. After the coiled tubing soaked in the corrosive solution is taken out and placed in the atmospheric environment for 24 hours,hydrogen atoms escaped from the coiled tubing body,and the plastic part recovered, approximately 68.9% of the bending fatigue life in the atmosphere.

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備注/Memo

備注/Memo:
收稿日期:2019-09-04
基金項目: 國家863重大專項“大型油氣田及煤層氣開發”(項目編號2016 ZX 05023006-005)。
作者簡介:鮮  寧(1980—),男,重慶市人,碩士,高級工程師,主要從事材料的腐蝕與防護技術研究。
更新日期/Last Update: 2020-02-21
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