Evaluation and influence factors analysis on corrosion fatigue life of the drill string

SU Kanhua; LIU Deping; JIAN Xu; SUN Zheng; WAN Lifu; ZHUO Yun and YU Xingying; ${author.authorNameEn}

doi:10.12143/j.ztgc.2024.01.003

2024 Vol. 51, No. 1

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Article navigation > DRILLING ENGINEERING > 2024 > 51(1): 15-22

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SU Kanhua, LIU Deping, JIAN Xu, SUN Zheng, WAN Lifu, ZHUO Yun and YU Xingying, . 2024. Evaluation and influence factors analysis on corrosion fatigue life of the drill string. DRILLING ENGINEERING, 51(1): 15-22. doi: 10.12143/j.ztgc.2024.01.003

Citation:

SU Kanhua, LIU Deping, JIAN Xu, SUN Zheng, WAN Lifu, ZHUO Yun and YU Xingying, . 2024. Evaluation and influence factors analysis on corrosion fatigue life of the drill string. DRILLING ENGINEERING, 51(1): 15-22. doi: 10.12143/j.ztgc.2024.01.003

Evaluation and influence factors analysis on corrosion fatigue life of the drill string

1.College of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology,Chongqing 401331, China；2.Chuandong Drilling Company, CNPC Chuangqing Drilling Engineering Co., Ltd., Chongqing 400021, China

Received Date: 27 April 2023

Revised Date: 31 July 2023

Abstract

Abstract

It is easy for drill string to be cracked when it is subjected to complex forces. Evaluating the corrosion fatigue life of drill string according to the actual situation on site can provide a basis for the safe use of drill string. By calculating the axial force， cyclic stress and fatigue limit of the drill string in the wellbore， the fatigue evaluation methods of drill string based on fatigue coefficient， drill string tension and rotation counting are determined， and the influence of acidic fluids is considered. The results show that the increase of the bending stress and buckling will lead to the fatigue failure of the drill string when drilled with severe dogleg. The remaining service life of the drill string will be greatly reduced when the corresponding ROP is reduced and the rotating speed is increased significantly. When severe acid corrosion occurs， the remaining service life of the drill string will be rapidly reduced. The drill strings in the well section with high tension and large dogleg should be regularly shifted to ensure the safe and normal use of drilling string on site.
- drill string /
- fatigue /
- corrosion /
- buckling /
- life evaluation /
- oil and gas drilling

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References

[1]	张俊良，文绍牧，邵勇，等.高含硫气井安全高效钻完井配套技术——以川东北罗家寨气田为例［J］.天然气工业，2015，35（4）：68-75. Google Scholar ZHANG Junliang， WEN Shaomu， SHAO Yong， et al. Safe and efficient drilling and completion technologies for high-sulfur gas wells： A case history of the Luojiazhai Gasfield in the northeastern Sichuan Basin［J］. Natural Gas Industry， 2015，35（4）：68-75. Google Scholar
[2]	[2] 周延军，李斌.含硫化氢条件下深井钻柱设计问题探讨［J］.钻采工艺，2008，31（2）：24-26. Google Scholar ZHOU Yanjun， LI bin. Drilling string design for deep well in H₂S environment［J］. Drilling and Production Technology， 2008，31（2）：24-26. Google Scholar
[3]	[3] 张德平，骆发前，林元华，等.钻柱疲劳寿命预测研究［J］.断块油气田，2006，13（3）：57-60. Google Scholar ZHANG Deping， LUO Faqian， LIN Yuanhua， et al. Research on fatigue life prediction of drill string［J］. Fault-Block Oil and Gas field， 2006，13（3）：57-60. Google Scholar
[4]	[4] 赵景芳，马龙才，宋林松，等.国外钻杆疲劳寿命预测系统模型及应用［J］.石油机械，2016，44（12）：1-6. Google Scholar ZHAO Jingfang， MA Longcai， SONG Linsong， et al. The foreign drill pipe fatigue life prediction model and its application ［J］. China Petroleum Machinery， 2016，44（12）：1-6. Google Scholar
[5]	[5] 王智明.675型泥浆脉冲器短节应力分析及结构设计优化［J］.钻探工程，2023，50（1）：26-32. Google Scholar WANG Zhiming. Stress analysis and structural design optimization of Type 675 mud pulser sub［J］. Drilling Engineering， 2023，50（1）：26-32. Google Scholar
[6]	[6] 梁健，尹浩，孙建华，等.高强耐热铝合金钻杆材料优选［J］.探矿工程（岩土钻掘工程），2020，47（4）：65-71.LIANG Jian， YIN Hao， SUN Jianhua， et al. Optimization of high strength and heat resistant aluminum alloy drill rod materia［J］. Exploration Engineering （Rock & Soil Drilling and Tunnling）， 2020，47（4）：65-71.. Google Scholar
[7]	[7] 李方坡，王勇.钻杆疲劳寿命预测技术的研究现状与展望［J］.材料导报，2015，29（11）：88-91. Google Scholar LI Fangpo， WANG Yong. Review on the drill pipe’s fatigue life prediction technology［J］. Materials Reports， 2015，29（11）：88-91. Google Scholar
[8]	[8] Hansford J E， Lubinski A. Cumulative fatigue damage of drill pipe in doglegs［J］. Journal of Petroleum Technology， 1966，18（3）：359-363. Google Scholar
[9]	[9] API RP 7G， Recommended practice for drill stem design and operating limits［S］. Google Scholar
[10]	[10] GB/T 24956—2010，石油天然气工业钻柱设计和操作限度的推荐作法［S］.GB/T 24956—2010， Recommended practice for drill stem design and operating limits ［S］. Google Scholar
[11]	[11] 韩志勇.定向钻井设计与计算［M］.东营：中国石油大学出版社，2011.HAN Zhiyong. Design and Calculation of Directional Drilling［M］. Dongying： China University of petroleum press， 2011. Google Scholar
[12]	[12] 李瑞刚，张洪宁，刘湘华，等.顺北56X特深水平井定向钻井关键技术［J］.钻探工程，2023，50（2）：58-64. Google Scholar LI Ruigang， ZHANG Hongning， LIU Xianghua， et al. Key technology for extra-deep horizontal directional drilling of Well Shunbei 56X［J］. Drilling Engineering， 2023，50（2）：58-64. Google Scholar
[13]	[13] Johancsik C A， Friesen D B， Dawson R. Torque and drag in directional wells prediction and measurement［J］. Journal of Petroleum Technology， 1984，36（6）：987-992. Google Scholar
[14]	[14] Halliburton. Landmark Well Plan Software manual［K］. 2015. Google Scholar
[15]	[15] SY/T 7409—2018，酸性油气井钻柱安全评价方法［S］.SY/T 7409—2018， Safety assessment method for drill string used in sour oil and gas fields［S］. Google Scholar
[16]	[16] 郑洋，万夫，周咏琳，等.CO₂腐蚀下的钻杆应力与疲劳寿命实验研究［J］.石油工业技术监督，2016，32（10）：48-52. Google Scholar ZHENG Yang， WAN Fu， ZHOU Yonglin， et al. Experimental study on stress and fatigue life of drill pipe under CO₂ corrosion［J］. Technology Supervision in Petroleum Industry， 2016，32（10）：48-52. Google Scholar
[17]	[17] 梁健，赵杰，王成彪，等.基于COMSOL的铝合金钻杆腐蚀分析［J］.钻探工程，2021，48（4）：1-10. Google Scholar LIANG Jian， ZHAO Jie， WANG Chengbiao， et al. Analysis of aluminum alloy drill pipe corrosion based on COMSOL［J］. Drilling Engineering， 2021，48（4）：1-10. Google Scholar