Search Results - "Liu, Shaohu"

Study on Natural Crack Initiation and Propagation of Coiled Tubing with Spherical Defect by Yang, Yang, Shaohu, Liu

“…The crack initiation and propagation at the surface defect of coiled tubing (CT) are easily caused by stress concentration, which leads to failure of CT. To…”
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A Deep Learning Model for Fault Diagnosis with a Deep Neural Network and Feature Fusion on Multi-Channel Sensory Signals by Ye, Qing, Liu, Shaohu, Liu, Changhua

“…Collecting multi-channel sensory signals is a feasible way to enhance performance in the diagnosis of mechanical equipment. In this article, a deep learning…”
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Analysis on mechanical influencing factors of fatigue behavior for the packer on pipe ram in snubbing unit by Chen, Ting, Ma, Weiguo, Liu, Shaohu, Wu, Jiwei

“…In snubbing service, the ram blowout preventer (BOP) is switched frequently, and the stress condition of the packer is very complicated. Cracks, rubber drop,…”
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A new theoretical model of low cycle fatigue life for coiled tubing under coupling load by Shaohu, Liu, Hao, Zhou, Hui, Xiao, Quanquan, Gan

“…•The theoretical model of low-cycle fatigue life is established based on plastic strain.•The theoretical model feasibility is verified by the experimental…”
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Experimental study on corrosion resistance of coiled tubing welds in high temperature and pressure environment by Liu, Shaohu, Yuanliang, Liu, Hong, Zhong, Jiayan, Zou, Dong, Yang

“…Coiled tubing (CT) has been widely used for oil and gas exploitation, however corrosion of CT under high pressure and high temperature (HPHT) environment was…”
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Critical Ultimate Load and Ultimate Bearing Failure of CT110 with Initial Crack Defect by Shaohu, Liu, Yuandeng, Wu, Hao, Zhou

“…CT110 is ultra-high-strength coiled tubing (CT). It has been applied in the drilling, completion, fracturing and stimulation process of deep wells, ultra-deep…”
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Corrosion Failure and Electrochemical Corrosion Behavior of Coiled Tubing by Shaohu, Liu, Yuanliang, Liu, Hong, Zhong

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Theoretical and experimental research of bearing capacity and fatigue life for coiled tubing under internal pressure by Shaohu, Liu, Feng, Guan, Xianjin, Wu, Hui, Xiao, Zhen, Wang, Ting, Yang

“…Coiled tubing (CT) endures high pressure during operation, thus causing high possibility of fatigue failure. Firstly CT's failure under high pressure and…”
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Coiled tubing failure analysis and ultimate bearing capacity under multi-group load by Shaohu, Liu, Hui, Xiao, Feng, Guan, Qifeng, Jiang, Jiwei, Wu, Ting, Yang

“…Influence study on ultimate bearing capacity of coiled tubing (CT) under the multi-group load can effectively avoid early failure and improve the service life…”
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Numerical investigation of gas‐liquid displacement between borehole and gassy fracture using response surface methodology by Ma, Tianshou, Tang, Tao, Chen, Ping, Li, Zhilin, Liu, Shaohu

“…Gas‐liquid displacement occurs often in fractured gas reservoirs, and can cause gas kick and mud leakage, resulting in a very high risk of losing well control…”
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Drill string failure analysis and erosion wear study at key point for gas drilling by Liu, Shaohu, Zheng, Hualin, Zhu, Xiaohua

“…Erosion wear at the key point of a drill string is very severe in gas drilling. The investigation shows that failure of drill string is very serious in gas…”
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Development on coiled tubing fracturing sleeve for shale gas horizontal well by Guan, Feng, Miao, Zhipeng, Zhou, Chuanxi, Xu, Jian, Wan, Feng, Liu, Shaohu, Yang, Ting, Wu, Jiwei

“…According to the conventional well cementing method, the cementing sliding sleeve, as a key part of the casing, needs to be opened by switch tool step by step…”
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Machine learning method for predicting the fatigue life of sucker rods by Yuandeng, Wu, Shaohu, Liu, Weiguo, Ma, Xiaofeng, Ran, Baolong, Qu

“…•The fatigue life of sucker rod was calculated by SN curve and nominal stress method.•BPNN and SVR have better correlation with the finite element…”
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Mechanisms affecting the difference in fatigue resistance between welds and base materials were investigated based on in-situ fatigue method by Yang, Yang, Liu, Shaohu, Lei, Lei, Yao, Xuefeng, Wang, Ziyu

“…•The interlocking basket structure serves as an effective measure to hinder the initiation of fatigue cracks；•The presence of large-angle grain boundaries…”
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Mechanical model and mechanical property analysis of fibre-reinforced hybrid composite pipes by Wang, Li, Ma, Weiguo, Deng, Lin, Liu, Shaohu, Yang, Ting

“…Compared to conventional fibre-reinforced composite pipes, fibre-reinforced hybrid composite pipes are more complex and are characterised by the use of hybrid…”
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Fracture failure analysis and research on drive shaft of positive displacement motor by Liu, Yang, Lian, Zhanghua, Xia, Chengyu, Qian, Liqin, Liu, Shaohu

“…In this paper, microstructures and mechanical properties of the fractured drive shaft are investigated by visual inspection, metallographic analysis, scanning…”
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Indentation response of pressurized sandwich pipes filled with cement composite under lateral loading by Wan, Feng, Guan, Feng, Deng, Yibo, Liu, Shaohu, Liu, Yonghui, Huang, Peng

“…Sandwich pipe with cement composite core is capable of submarine pipelines application in deepwater harsh environment due to its superior structural resistance…”
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Enhanced strength-ductility-impact toughness synergy of CT20 titanium alloy by introducing a multi-level lamellar martensitic α structure by Zhu, Qiwei, Lei, Lei, Wu, Cong, Zhao, Qinyang, Yang, Ming, Liu, Shaohu, Yang, Yang, Zeng, Weidong, Zhao, Yongqing

“…In this work, different morphologies and structures of lamellar α are obtained by controlling the cooling rates, i.e., water cooling (WC), air cooling (AC) and…”
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Fracture failure analysis and structure improvement on thread joint of turbine shaft by Liu, Yang, Lian, Zhanghua, Liu, Shaohu, Luo, Tong

“…•Did the testing of composition and mechanical properties about material.•The largest stress of the thread joint was brought about by a larger torque.•Carried…”
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Pressure capacity of sandwich pipe with cement-based core configuration under deep-water external pressure by Wan, Feng, Guan, Feng, Zhou, Chuanxi, Liu, Shaohu, Yang, Ting

“…Sandwich pipe, consisting of two steel tubes and a polymeric or cement-based material core layer, has been considered as an attractive solution for oil and gas…”
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