Experimental Research on Erosion of P110 Tubing during Perforating

Abstract:

Erosion is a main failure of tubings and downhole tools in Changqing gas field. It is necessary to evaluate the erosion rate for the safety of tubing and strings. In this paper, the erosion of P110 steel, in the 0.2%wt guar gum fracturing fluid which contains sands, is investigated by weight loss method in the self-made jet experiment device. It is indicated that the erosion rate increases with the increment of slurry velocity exponentially. When the slurry velocity is in low velocity area, the electrochemical corrosion of dissolved oxygen dominates in erosion mechanism; when slurry velocity increases into middle velocity area, the weight loss is controlled by the synergism of corrosion-erosion; and when the slurry velocity increases into high velocity area, the weight loss rate is dominantly depended on erosion of particles. The results can provide guidelines for large-scale fracturing work of Changqing gas fields.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 2244-2247
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.2244
• Online since: December 2014
• Authors: Hu Sun, Zhi Jun Ning, Zu Wen Wang, Zhen Li, Zhi Guo Wang*
• Keywords: 0.2%Guar Gum Fluid, Erosion, P110 Tubing, Perforating

References

[1] Yihua Dou, Airong Xu, Fuxiang Zhang, et, al. Summary of testing and completion of the high-temperature high pressure deep well [J]. Petroleum machinery, 2008, 36(9): 140-142.

[2] Xianglai Zhang, Qingyou Liu. Erosion mechanism and structure optimization of throttle valves in well control [J]. Natural gas industry, 2008, 28(2): 83-84+169.

[3] Xuyun Zhang , Chuang Zhu, Lili Sun, et, al. Sands and chlorine ions influence on erosion and corrosion properties of P110 tubing [J]. Chemical machinery, 2012, 39(4): 447-448.

[4] Gang Dong, Jiuyuan Zhang. Research progress of solid particle erosion and wear [J]. Journal of materials science and engineering，2003，21(2)：307-311.

[5] Zhe Xu, Erosion of P110 tubing under conditions of liquid-solid two phase [D]. Northeast Petroleum University, (2011).

[6] Shengli Jiang, Yugui Zheng, Yangxin Qiao, et, al. Development of a high velocity jet erosion test equipment and dynamic real-time electrochemical test [J]. Corrosion science and protection technology, 2009, 21(5): 489-491.

[7] Malka R, Nešić S, Gulino D A. Erosion–corrosion and synergistic effects in disturbed liquid-particle flow [J]. Wear, 2007, 262(7): 791-799.

DOI: 10.1016/j.wear.2006.08.029

[8] S.S. Rajahram, T.J. Harvey, R.J.K. Wood. Evaluation of a semi-empirical model in predicting erosion–corrosion [J] Wear, 2009, 267: 1883-1893.

DOI: 10.1016/j.wear.2009.03.002