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2024 8th International conference on Electrical, Mechanical and computer engineering (ICEMCE)

作者： Yue Xiao Tuo Zhou Guojun Liu Xuanren Chen Xiangji Kong Yu Zhang Longlong Liu Shunong diao CNPC Engineering Technology R&D Co. LTD PetroChina International Exploration and Development Co. LTD Overseas Drilling and Completion Technology Center Beijing China PetroChina International Exploration and Development Co. LTD Beijing China Changchun University of Technology Changchun China China University of Petroleum (Beijing) Beijing China

ISBN: (数字)9798331506230

ISBN: (纸本)9798331506247

The optimal selection of drilling rigs is crucial for the rational arrangement of drilling rigs in multi operation teams, the improvement of moving operation management level, and the enhancement of drilling operation quality and efficiency. At present, the optimal selection of drilling rigs only considers whether the drilling meets the needs of the drilling project and the moving distance, and cannot comprehensively and scientifically select drilling rigs, which is not conducive to the rational configuration evaluation of oilfield drilling rig operation. This article comprehensively considers key indicators such as drilling efficiency, time efficiency, moving cycle, moving cost, and moving distance, innovatively forms a pentagonal drilling rig optimization coordinate system, establishes drilling rig optimization rate, comprehensive standard deviation, drilling rig optimization comprehensive standard deviation and other indicators, and forms a drilling rig optimization model for drilling. Taking Block B as an example, the priority of Block B with three drilling rigs to be optimized calculated using the model is ${\mathrm {r}}1\gt {\mathrm {r}}2\gt {\mathrm {r}}3$.The optimal selection rate of drilling r1 is the highest, the comprehensive standard deviation is smaller, and the comprehensive index of the best and more stable drilling performance is the highest, which is 0.0058. Therefore, r1 should be selected for drilling. The drilling rig optimization model proposed in this paper provides a process reference for drilling rig optimization, quantifies various indicators, and provides a theoretical basis for new well drilling rig optimization, project company drilling rig operation plan formulation, and improving project company drilling rig management level.

关键词： drilling costs Uncertainty Optimization models computational modeling Stability criteria companies complexity theory Standards Optimization

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research on engineering technologies to develop China's complex reservoirs and their feasibility in development of marginal oilfields in South America

Research on engineering technologies to develop China's comp...

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Offshore technology conference Brasil 2019, OTCB 2019

作者： Fu, Jin Wang, Xi Zhang, Shunyuan Liu, Bingshan Chen, Chen Yang, Guobin CNPC Engineering Technology R&D Company Ltd

ISBN: (纸本)9781613996713

Marginal Oilfields are refered to as those oilfields that are hardly developed efficiently with current technical and ecomonical conditions, characterized as high costs of development and low profit margins. However, under certain economical and technical circumstances, marginal oilfields may be transferred to be conventional ones. Since Petrobras developed the first ever offshore deep reservoir (Lula) by scale in 2006, Brazil has been conducting a progressive campaign targeting hydrocarbons buried under deep water, which contributes to discovery of Lula, Carioca, Jupiter, Buzios, Libra and other giant presalt reservoirs in Santos Basin. cnpc signed a cooperation contract with Petrobras in 2013, taking 10% of the total shares. How to efficiently develop the oilfield has been a challenging issue. Technologies of smart water injection in Shengli Oilfield have been studied, while the field development and environment (deep water) of Libra Oilfield have been analyzed, in order that the smart water injection technologies may be modified to develop the marginal oilfield more efficiently. different from conventional zonal water injection technologies, the remote wireless control water injection technologies take advantages of packers that are connected with each other via preset cables, which achieves downhole testing and water injection simultaneously. Being run via tubing, the water injection string locates a nozzle for each reservoir that is isolated by a packer. All nozzles are connected with packers via the preset cables that work as power lines for the whole string, so that downhole data such as pressures, flows and temperatures are all transferred to the processing computer on the surface. The computer program is used to convert pressure and formation signals into curves that are transferred to company via WIFI or mobile 2G/3G/4G webs, in order that technicians there may understand and learn about downhole pressures, temperatures, flows and nozzle conditions in real

关键词： Offshore oil well production

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Prediction and Analysis of Vehicle Interior road Noise Based on Mechanism and data Series Modeling

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Sound & Vibration 2024年第1期58卷 59-80页

作者： Jian Pang Tingting Mao Wenyu Jia Xiaoli Jia Peisong dai Haibo Huang State Key Laboratory of Vehicle Noise Vibration and Harshness(NVH)and Safety TechnologyChongqing401120China School of Mechanical Engineering Southwest Jiaotong UniversityChengdu610031China Changan Auto Global R&D Center Chongqing Changan Automobile Co.Ltd.Chongqing401120China

Currently,the inexorable trend toward the electrification of automobiles has heightened the prominence of road noise within overall vehicle ***,an in-depth investigation into automobile road noise holds substantial practical *** research endeavors have predominantly centered on the formulation of mechanism models and data-driven *** mechanism models offer robust controllability,their application encounters challenges in intricate analyses of vehicle body acoustic-vibration coupling,and the effective utilization of accumulated data remains *** contrast,data-driven models exhibit efficient modeling capabilities and can assimilate conceptual vehicle knowledge,but they impose stringent requirements on both data quality and *** response to these considerations,this paper introduces an innovative approach for predicting vehicle road noise by integrating mechanism-driven and data-driven ***,a series model is devised,amalgamating mechanism analysis with data-driven techniques to predict vehicle interior *** simulation results from dynamic models serve as inputs to the data-driven model,ultimately generating outputs through the utilization of the Long Short-Term Memory with Autoencoder(AE-LSTM)*** study subsequently undertakes a comparative analysis between different dynamic models and data-driven models,thereby validating the efficacy of the proposed series vehicle road noise prediction *** series model,encapsulating the rigid-flexible coupling dynamic model and AE-LSTM series model,not only demonstrates heightened computational efficiency but also attains superior prediction accuracy.

关键词： NVH road noise multi-body dynamics data-driven AE-LSTM

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Technical and risk assessment of underground gas storage construction and operation in China and Caspian region

Technical and risk assessment of underground gas storage con...

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SPE russian Petroleum technology conference 2019, rPTC 2019

作者： Fu, Jin Wang, Xi Chen, Chen Chen, Haowei Zhang, Shunyuan Liu, Bingshan CNPC Engineering Technology R&D Company Ltd

ISBN: (纸本)9781613996928

Since China proposed "Belt and road" initiative in 2013, Caspian countries have become a crucial region for oil and gas cooperation. However, it has been a common technical issue to develop presalt oil and gas resevoirs in the world. Caspian region is known for the wide-spread thick salt-gypsum formations. In China some old wells that were depleted due to engineering difficulties arising from presalt formations started to be developed as underground gas storages. The crude oil price has been keeping at a low level in recent years, which made China's government put more efforts in the development of underground oil storages in depleted salt caverns. As the largest project of underground gas storages, Jintan gas storage construction project successfully made best use of depleted salt caverns. A Sonar test was applied on 4 Jintan underground salt caverns that are 900m deep and 1000m away from the surface in order to reveal their shapes. Salt and muddy salt rocks were collected in Jintan as samples to be analyzed in 3-axis pressure tests. Numerical results with finite element method (FEM) code ABAQUS were studied to approach the creep behaviors of caverns and rock pillars. The pressure arch model and the most dangerous sliding surface model were both utilized to optimize geometric parameters of the upper and lower walls of dissolved cavities. Creep happens on salt rocks under deviator stress, which has non-linear relationship with time. In the simulated gas storage process the internal pressure went up to 14.0 MPa within 3 months but dropped to 7.0MPa in the following 3 months. The above condition may last for 9.5 years in real scenarios. Surrounding rocks of caverns deformed during construction but the most obvious creep was found at their tops and bottoms. Within 10 years salt pillars between caverns are under high deviator stress, thus their creep is the most serious. Surrounding rocks become unstable as the internal pressure of caverns decreases. The creep scope of

关键词： Caves

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Multi-objective Optimization of Sheet Structure in Threshing Process 13th

Multi-objective Optimization of Sheet Structure in Threshing...

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13th International Workshop of Advanced Manufacturing and Automation, IWAMA 2023

作者： Wu, Kai Yang, Ji Zhang, Wei Wang, Hai Jia, Wei Su, Yi Lin, Jun Zhang, Ling Liu, Xiaomin Tang, danyu Yang, Kaiwei Huang, Yayu Wen, Jibin R&D Center Yunnan China Tobacco Industry Co. Ltd. Yunnan Kunming655000 China Co. Ltd. Yunnan Yuxi653100 China Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology 727 Jingming South Road Chenggong District Yunnan Kunming650500 China

ISBN: (纸本)9789819706648

In order to explore the relationship between the process parameters of the threshing process and the structural characteristics of the post threshing sheet, and to find the optimal process parameters, a multi-objective optimization model was established based on the temperature and humidity of the secondary moistening material, threshing frequency, and pneumatic machine frequency, as well as the structural characteristics of the post threshing sheet. The raw material was initial flue-cured tobacco Yun 87 from the Yunnan production area in 2022. Then, a multi-objective optimization model was built based on the linear equation system, and 9 sets of optimal process parameter combinations were obtained by solving the model. Validation experiments were designed and conducted. The results show that the proportion of sheet structure characteristics has a strong linear correlation with various key process parameters(the value of r were 0.776, 0.809, 0.779, 0.722, 0.664, respectively). The optimal parameters were moisture content during conditioning at 18.1%, conditioning temperature at 45.6 ℃, the frequency of first-stage threshing unit is 42.3 Hz, the frequency of second-stage threshing unit is 40.7 Hz, the frequency of third-stage threshing unit is 44.4 Hz, the frequency of first-stage pneumatic unit is 40.8 Hz, the frequency of second-stage pneumatic unit is 37.5 Hz, the frequency of ninth-stage pneumatic unit is 46.1 Hz. Under the optimized condition, the rate of large and medium-sized leaves has significantly increased, while the stem content in the strips has decreased. It indicated that adjusting the conditioning temperature, moisture content, the frequency of threshing unit, and the frequency of pneumatic unit appropriately is beneficial for improving the proportion of structural characteristics. © The Author(s), under exclusive license to Springer Nature Singapore Pte ltd. 2024.

关键词： Multiobjective optimization

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Analysis on the drying Effect of the Flow Field in the Lower Air-Inlet drying Area of the Tobacco redrying Machine 13th

Analysis on the Drying Effect of the Flow Field in the Lower...

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13th International Workshop of Advanced Manufacturing and Automation, IWAMA 2023

作者： Wu, Kai Zhang, Wei Xu, Jiang Yang, Yuting Tian, Mengyu Li, Yong Qu, Jun Lu, Sheming Li, Shaoyang Yuan, Yutong Wang, Xiangfei Huang, Yayu Zou, Kan R&D Center Yunnan China Tobacco Industry Co. Ltd. Yunnan Kunming655000 China Co. Ltd. Yunnan Yuxi653100 China Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology 727 Jingming South Road Chenggong District Yunnan Kunming650500 China

ISBN: (纸本)9789819706648

In order to study the uniformity of tobacco layer drying in the air inlet drying area under the redrying machine. This article uses the EdEM Fluent coupling method to simulate and calculate the air inlet drying area of a tobacco redrying machine in a Yunnan redrying factory, and analyzes the uniformity of the drying process. The research results indicate that due to the influence of unilateral air intake, there is an uneven distribution of wind speed on the conveyor belt surface from left to right. For the temperature and moisture of the tobacco leaf layer, there is a phenomenon of uneven drying along the conveyor belt direction. The temperature in the right part of the tobacco layer is significantly higher than that in the left and middle parts, and the average moisture content of the right tobacco layer is significantly lower than that of the left and middle tobacco layers. The temperature variation coefficient is 2.77%, and the moisture variation coefficient is 2.23% © The Author(s), under exclusive license to Springer Nature Singapore Pte ltd. 2024.

关键词： Tobacco

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research on Network Application of Intelligent Campus Based on SdN technology

Research on Network Application of Intelligent Campus Based ...

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Image Processing and computer Applications (ICIPCA), IEEE International conference on

作者： Yunyi Mei Qi Shao Qingzhong Gao Tong Zhao Yanlong Zhang Lingzhi Jing Yang Yu CNPC Engineering Technology R&D Company Limited Beijing China National Engineering Research Center of Oil & Gas Drilling and Completion Technology Beijing China Kunlun Digital Technology Co. Ltd. Beijing China CNPC Great Wall Drilling Company Beijing China

There are some problems in traditional network architecture, such as traffic can not be real-time scheduling, business information can not be visualized, operation and maintenance is complex, and fault location efficiency is low. In order to meet the needs of “digital Petroleum” network infrastructure construction, a company introduced SdN technology into the campus office network, and carried out network optimization management and innovation practice, this paper puts forward a network transformation scheme based on SdN “The network follows the people”, through deploying SdN control server and adjusting the network equipment configuration, the office network can be expanded flexibly and maintained efficiently, to meet the needs of different types of application traffic classification management and intelligent precision scheduling, effectively improve the level of intelligent network management.

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Human localization and identification by combining visual detection and UWB 5

Human localization and identification by combining visual de...

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5th IEEE International conference on Civil Aviation Safety and Information technology, ICCASIT 2023

作者： Mei, Yanan Xu, Weicun Zuo, Haibo Li, Li Qin, Jiaxu Ji, Qian China Academy of Civil Aviation Science and Technology Beijing China Beijing EasyAir Intelligence & Integration Tech. Co. Ltd R&d Center Beijing China Civil Airport Electronic Engineering Design Co. Ltd Design Department Chengdu China

ISBN: (纸本)9798350310603

This paper proposes a method to position and identify human in static scenes. The proposed framework comprises by the following parts: human detection, 2d localization calculating and visual-UWB sensing association. during the first stage, background segmentation is performed and then the segmented blobs would be filtered by the classification step performed by an artificial neural network. The second stage is related to scene reconstruction of the human positions from the images provided by several visual sensors used in the acquisition. The last procedure is to associate the detection results and human positions with the UWB positioning results. © 2023 IEEE.

关键词： Image segmentation

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Visible light excitation on CuPd/TiN with enhanced chemisorption for catalyzing Heck reaction

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Chinese Chemical Letters 2025年第1期36卷 362-368页

作者： Xuhui Fan Fan Wang Mengjiao Li Faiza Meharban Yaying Li Yuanyuan Cui Xiaopeng Li Jingsan Xu Qi Xiao Wei Luo State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China National Energy R&D Center for Coal to Liquid Fuels Synfuels China Technology Co.Ltd.Beijing 101407China Shimadzu(China)Co. Ltd.Shanghai 200233China School of Chemistry and Physics&Centre for Materials Science Queensland University of TechnologyBrisbaneQLD 4001Australia

In this work,we developed plasmonic photocatalyst composed of Cu Pd alloy nanoparticles supported on Ti N,the optimized Cu_(3)Pd_(2)/Ti N catalyst shows excellent conversion(>96%)and selectivity(>99%)for Heck reaction at 50℃ under visible light *** in-situ spectroscopic investigations,we find that visible light excitation could achieve stable metallic Cu species on the surface of Cu Pd alloy nanoparticles,thereby eliminating the inevitable surface oxides of Cu based *** in-situ formed metallic Cu species under irradiation take advantage of the strong interactions of Cu with visible light,and manifest in the localized surface plasmon resonances(LSPr)*** light excitation could further promote the charge transfer between catalytic Pd component and the support Ti N,resulting in electron-rich Pd sites on Cu Pd/Ti ***,light excitation on Cu Pd/Ti N generates strong chemisorption of iodobenzene and styrene,favoring the activation of reactants for Heck *** calculations suggest that electron-rich Cu Pd sites ideally lower the activation energy barrier for the coupling *** work provides valuable insights for mechanistic understanding of plasmonic photocatalysis.

关键词： Photocatalysis CuPd alloy Chemisorption Photocatalytic mechanism LSPr

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Fast-Settling Onboard Electrochemical Impedance Spectroscopy System Adopting Two-Stage Hilbert Transform 49

Fast-Settling Onboard Electrochemical Impedance Spectroscopy...

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49th Annual conference of the IEEE Industrial Electronics Society, IEcoN 2023

作者： Lee, Young-Nam Jung, Min Jae Jo, Seong-Won rahim, Gul Lee, Sang-Gug Choi, Kyung-Sik Daejeon34141 Korea Republic of Autosilicon Co. Ltd. Daejeon R&d Center Daejeon34050 Korea Republic of Eth Zürich Department of Information Technology and Electrical Engineering Zürich Switzerland

ISBN: (纸本)9798350331820

Electrochemical impedance spectroscopy (EIS) is a non-invasive method for analyzing battery states based on impedance measurements. With the widespread use of high-capacity lithium-ion batteries in the range of mΩ impedance, achieving highly accurate impedance measurements becomes crucial for precise battery examination. EIS systems frequently utilize a digital lock-in amplifier (dLIA) to achieve ultra-precision impedance readings, but it requires a long settling time. This study proposes an innovative EIS architecture with a two-stage Hilbert transform that significantly reduces the measurement time by widening the bandwidth of noise suppression low-pass filter while maintaining high accuracy. It achieves a substantial 66% reduction in the estimated settling time at the lower bound frequency of 1 Hz and a 57% reduction in the total measurement time across the frequency range of 1-to-1k Hz. © 2023 IEEE.

关键词： Electrochemical impedance spectroscopy

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