MADANI S , ALINEJAD J , ROSTAMIYAN Y , et al . Numerical study of geometric parameters effects on the suspended solid particles in the oil transmission pipelines [J ] . Proceedings of the Institution of Mechanical Engineers, Part C:Journal of Mechanical Engineering Science , 2022 , 236 ( 8 ): 3960 - 3973 . DOI: 10.1177/09544062211045490 http://doi.org/10.1177/09544062211045490 http://journals.sagepub.com/doi/10.1177/09544062211045490 http://journals.sagepub.com/doi/10.1177/09544062211045490 The innovation of this paper is geometric parameters effects of the oil transmission pipelines on the suspended solid particles. This geometry has been simulated with the Lattice Boltzmann Method based on D2Q9 model for analyzing solid particle tracing, streamlines, solid particle volume fraction, and nondimensional velocity field of fluid flow. These parameters have been investigated in 9 cases of the oil transmission pipelines at two different intensity of fluid flow. The results signified that maximum and minimum ranges of fluid velocity at [Formula: see text] were in case 3 that the oil transmission pipelines with diameter of the pipeline and bending radius, D and 2D, respectively. Also, maximum volume fraction of solid particles at bending radius at [Formula: see text] was in case 3 with diameter of the pipeline and bending radius, D and 2D, respectively. Also, in case 9, solid particles in the oil transmission pipelines were almost symmetrical. Finally, with comparison between figures of solid particles tracing and volume fraction of solid particles, by increasing of the diameter of oil transmission pipelines, the sediment of solid particles was decreased, also, by increasing of the bending radius of oil transmission pipelines, the sediment of solid particles was increased.

王光普 . 抽油机井油管的断裂强度分析 [D ] . 长春 : 吉林大学 , 2011 .

WANG G P . Fracture strength analysis of pumping well tubing [D ] . Changchun : Jilin University , 2011 . (in Chinese)

WANG C L , LIU X K , WANG H , et al . Research on sealing performance of special thread of tubing under complex load [J ] . Journal of Physics:Conference Series , 2022 , 2230 ( 1 ): 012034 . DOI: 10.1088/1742-6596/2230/1/012034 http://doi.org/10.1088/1742-6596/2230/1/012034 In order to study the performance of a special threaded joint of a tubing under severe well conditions, a two-dimensional finite element model of this joint was established in the finite element software, and the mechanical properties and sealing performance of the special threaded joint under different working conditions were analyzed and studied. The results of the study indicate: under different make-up torques, the Mises stress value on the thread has a small difference, and there is a significant difference at the shoulder. When subjected to complex loads, the Mises stress on the load-bearing surface of the thread head and tail ends is high, the overall maximum Mises stress exceeds the yield limit of the material, but the stress level in most areas is low, there is no plastic penetration part and structural damage on the thread teeth. The sealing index of the threaded joint is greater than the critical sealing performance index. This shows that this threaded joint can meet the requirements of use.

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胡耀威 . 发动机橡胶悬置衬套冲击试验及模拟研究 [D ] . 哈尔滨 : 哈尔滨工业大学 , 2014 .

HU Y W . Impact test and modelling of engine suspension component for crash simulation [D ] . Harbin : Harbin Institute of Technology , 2014 . (in Chinese)

陈淼 . 断裂动力学样条虚边界元法及其工程应用 [D ] . 广州 : 华南理工大学 , 2019 .

CHEN M . Study on the theory and application of spline fictitious boundary element method for fracture dynamics [D ] . Guangzhou : South China University of Technology , 2019 . (in Chinese)

陈朝晖 , 于洋 , 窦益华 . 内压作用下API油管接头应力有限元分析 [J ] . 内蒙古石油化工 , 2012 ( 4 ): 30 - 32 .

CHEN Z H , YU Y , DOU Y H . Finite element analysis of API tubing joint stress under internal pressure [J ] . Inner Mongolia Petrochemical Industry , 2012 ( 4 ): 30 - 32 . (in Chinese)

FEI C W , LI H , LU C , et al . Vectorial surrogate modeling method for multi-objective reliability design [J ] . Applied Mathematical Modelling , 2022 , 109 : 1 - 20 . DOI: 10.1016/j.apm.2022.03.033 http://doi.org/10.1016/j.apm.2022.03.033 https://linkinghub.elsevier.com/retrieve/pii/S0307904X2200155X https://linkinghub.elsevier.com/retrieve/pii/S0307904X2200155X

ZHOU S , ZHANG J G , ZHANG Q Y , et al . A new chance reliability-based design optimization approach considering aleatory and epistemic uncertainties [J ] . Structural and Multidisciplinary Optimization , 2022 , 65 ( 8 ): 1 - 20 . DOI: 10.1007/s00158-021-03092-x http://doi.org/10.1007/s00158-021-03092-x Additive manufacturing (AM) has an affinity with topology optimization to think of various designs with complex structures. Hence, this paper aims to optimize the design of a lattice-structured heat sink, which can be manufactured by AM. The design objectives are to maximize the thermal performance of convective heat transfer in natural convection simulated by computational fluid dynamics (CFD) and to minimize the material cost required for AM process at the same time. The lattice structure is represented as a node/edge system via graph theory with a moderate number of design variables. Bayesian optimization, which employs the non-dominated sorting genetic algorithm II and the Kriging surrogate model, is conducted to search for better designs with the minimum CFD cost. The present topology optimization successfully finds better lattice-structured heat sink designs than a reference fin-structured design regarding thermal performance and material cost. Also, several optimized lattice-structured designs outperform reference pin-fin-structured designs regarding thermal performance though the pin-fin structure is still advantageous for a material cost-oriented design. This paper also discusses the flow mechanism observed in the heat sink to explain how the optimized heat sink structure satisfies the competing design objectives simultaneously.

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MAO F H , TANG K F , WANG D L . Equivalent model of threaded connection based on finite element springy element [J ] . Mechanical Engineering and Automation , 2022 ( 5 ): 48 - 50 . (in Chinese)

唐家睿 , 晁利宁 , 徐凯 , 等 . 油套管特殊螺纹连接密封性能试验研究 [J ] . 钢管 , 2020 , 49 ( 4 ): 64 - 69 .

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陈守俊 , 李强 , 张毅 , 等 . 油套管联接拧紧扭矩的计算方法 [J ] . 华东理工大学学报(自然科学版) , 2010 , 36 ( 5 ): 737 - 742 .

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KE Y , LI Q S , ZHANG L . Longitudinal vibration analysis of multi-span liquid-filled pipelines with rigid constraints [J ] . Journal of Sound and Vibration , 2004 , 273 ( 1/2 ): 125 - 147 . DOI: 10.1016/S0022-460X(03)00422-X http://doi.org/10.1016/S0022-460X(03)00422-X https://linkinghub.elsevier.com/retrieve/pii/S0022460X0300422X https://linkinghub.elsevier.com/retrieve/pii/S0022460X0300422X

董福祥 , 丁保安 , 李秀山 , 等 . 某柴油机DPM出油管振动分析及优化 [J ] . 内燃机与动力装置 , 2022 , 39 ( 2 ): 73 - 79 .

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罗钟鸣 , 陈杰 , 粟超 . 中东海上油田双油管气举优化设计及应用实践 [J ] . 钻采工艺 , 2022 , 45 ( 4 ): 87 - 91 .

LUO Z M , CHEN J , SU C . Optimization design and field practice of dual tubing string gas lifting in middle east offshore oilfield [J ] . Drilling and Production Technology . 2022 , 45 ( 4 ): 87 - 91 . (in Chinese) DOI: 10.3969/J. ISSN.1006-768X.2022.04.14 http://doi.org/10.3969/J. ISSN.1006-768X.2022.04.14 As one of the effective exploitation methods of multi-layer reservoir development, dual tubing string can be utilized for at least two layers development which can bring much lower drilling and completion cost and less interference between layers during production, which will enhance oilfield development profit. However, when the cease flowing well is converted from natural flowing to gas lifting, the lifting performance can’t meet the requirement of stable producing because the dual tubing gas lift based on steady state design often interferes with each other as the reservoir differences between different producing zones, resulting in dual tubing gas injection volume cannot meet the design requirements during lifting process. In order to precisely estimate the liquid unloading and following production performance, a transient model was introduced to comprehensively solve the multi-factors interference and optimize the design of dual tubing gas lift, so as to identify the condition and timing of unsteady characters occurring. A solution like gas lifting digital intelligent control system has been proposed for adjusting and optimizing the gas injection volume manually or automatically, so as to ensure the stable production of each reservoir. On-site practice of one high productivity well in middle-east ZK offshore oilfield proved that dual tubing gas lifting uncertainty can be identified and solved by installing digital intelligent control system. This research also provides experience and reference for dual tubing string gas lifting production in multi-layer reservoir. 

刘宇航 , 刘鑫 , 张生 , 等 . 重载车辆进气中冷管振动特性及设计改进 [J ] . 兵工学报 , 2022 , 43 ( 8 ): 1753 - 1762 .

LIU Y H , LIU X , ZHANG S , et al . Vibration characteristics and improved design of intake-cooling pipes for heavy duty vehicles [J ] . Acta Armamentarii , 2022 , 43 ( 8 ): 1753 - 1762 . (in Chinese) DOI: 10.12382/bgxb.2021.0449 http://doi.org/10.12382/bgxb.2021.0449 The intake system of a heavy duty vehicle consists of intake-cooling iron pipes on both sides and an intercooler. After delivery to user, cracks are often found on the left cooling pipe, whereas the right pipe is in good condition. Vibration tests of the intake system are conducted to find out the reasons for the failure. In-situ and running vibration acceleration data are collected. Through data analysis, it is found that resonance occurs to the left intake pipe under in-situ condition or when the engine is operating at 1 700 r/min. The right intake pipe bears greater excitation acceleration than the left one. Both sides of the intake pipes share similar dominant frequencies between 0-200 Hz. According to the frequency response simulation of the left intake pipe, the resonance frequency occurs at 138 Hz and the maximum stress at the bottom of the pipe is 74.2 MPa. The structure of the left intake pipe is developed by comparing the left and right intake pipes’ parameters. Both simulation and vibration tests are conducted on the improved intake pipe. The results show that the improved pipe successfully avoids the main excitation frequency and the vibration conditions are also improved under different road conditions.