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8th International Field Exploration and development Conference, IFEdC 2019

作者： Shao, Li-ming Fang, Ping-liang Wei, Fa-lin Li, Wei-tao dai, Ming-li Research Institute of Petroleum Exploration and Development PetroChina Beijing China CNPC Engineering Technology R&D Company Limited PetroChina Beijing100083 China

ISBN: (纸本)9789811524844

High temperature-resistant polymer (HTP) was synthesized by in-situ cross-linking of interpenetrating reaction using H-2 monomer containing amide bond and H-1 molecule containing hydroxyl as raw materials. Ir spectra result showed that there were characteristic functional groups of H-1 and H-2 cross bond at the same time, that was to say that H-1 cross-linking reaction and H-2 polymerization could simultaneously take place. The interpenetrating cross-linking structure, extension properties at room temperature and long-term heat resistance properties of the material were tested. The experiment results showed that in the whole range of observations, HTP material cross-links and interpenetrates uniformly. The SEM pictures confirmed the interpenetration structure of HTP material. After cross-linking and interpenetration, the scale of HTP structure became smaller than before. This material had tensile resistance, dispersion stability in water, volume expansion, and could reach the maximum swelling ratio of 1.69 within 1.5 h at room temperature. At 90 °C, 120 °C and 140 °C, after soaking 130 days in formation water, HTP volume reduction rate was 1.57%, 3.24% and 6.82%, respectively. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Heat resistance

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Study on Improving the Fluidity of Ti2alnb Alloy

SSRN

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SSrN 2023年

作者： Zhang, Jian Zhang, Xiwen Wang, Hongwei Wu, Mengwei Ma, Xiong Liang, Xiaobo Zhang, Jianwei Liu, ruiping Zhao, Huiyou Sun, Zhimin Zhang, Ji School of Electromechanical and Information Engineering China University of Mining and Technology - Beijing Beijing100083 China Gaona Aero Material Co Ltd Beijing100081 China Beijing Key Laboratory of New Superalloy Materials Beijing100081 China Digital R&D Center of Central Iron & Steel Research Institute Group Beijing100081 China

In this paper, the effects of trace elements such as Al, Nb main elements, Fe, Mo, W, Co, B and Si on the fluidity of Ti-22Al-25Nb alloy were investigated. The alloy composition which is beneficial to improve the fluidity was selected by calculating the thermal property parameters affecting the fluidity of the alloy through thermodynamic software, numerical simulation test of the fluidity of the alloy and verification test of the fluidity of the preferred alloy. Finally, the improvement mechanism of the alloy fluidity was discussed. results showed that the appropriate reduction of Nb element was better than Al element for the improvement of fluidity. The addition of trace Fe, B and Si elements was beneficial to the improvement of fluidity, the improvement effect of B element was the best, while the addition of trace Mo, W, and Co was not conducive to the improvement of fluidity. The cessation mechanism of Ti2AlNb alloy is the cessation mechanism of the alloy with a wide crystallization temperature range. The composition which was the most beneficial to improve the fluidity was Ti-22Al-24Nb-0.1B. The main reasons for the improvement of the fluidity were that on the one hand, reducing 1at% Nb and adding 0.1at% B not only increased the superheat and crystallization latent heat but also reduced the melt viscosity and thermal conductivity, thus improving the fluidity. And on the other hand, the TiB phase refined the grains, and the fine grains prevented the dendrites from growing into a well-developed dendritic network, inhibited the adverse effect of the increase in the width of the solidification zone on the fluidity, and further improved the fluidity. © 2023, The Authors. All rights reserved.

关键词： Ternary alloys

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Numerical Simulation for the Multi-media dynamic Changes in the Fracturing and development of Tight Oil reservoir 8th

Numerical Simulation for the Multi-media Dynamic Changes in ...

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8th International Field Exploration and development Conference, IFEdC 2019

作者： Fang, Ping-liang Shao, Li-ming Xu, Xian-guang Cheng, rong-chao Kang, Xiao-na CNPC Engineering Technology R&D Company Limited PetroChina Beijing100083 China Research Institute of Petroleum Exploration and Development PetroChina Beijing China

ISBN: (纸本)9789811524844

In order to identify the function of coupling of flow and deformation during fracturing and development in tight oil reservoir and study the effect on reservoir performances due to the multi-media dynamic changes. Based on the mechanics mechanism of multi-media deformation on tight sandstone reservoir, the coupling of multiphase flow and reservoir deformation during fracturing and production was stated. The dynamic model of reservoir parameters for different development stages and the multiphase seepage mathematical model were established. On this basis, an integration of fracturing and production software module was developed. According to the numerical simulation on staged fracturing of horizontal wells and production in a Xinjiang tight oil field, the changing rules of physical parameters in porous and fracture media were obtained. By using this technology, the deformation law of multi-media in different development stages, such as expansion and contraction, opening and closing, rupture and propagation could be revealed;meanwhile, the effect of coupling of flow and deformation interaction on reservoir performances was analyzed quantitatively. Therefore, numerical simulation for dynamic changes of the multi-media in the fracturing and production can be used to exploit tight oil reservoir highly efficiently. © 2020, Springer Nature Singapore Pte Ltd.

关键词： deformation

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All-solution processed layer-by-layer deposition of multifunctional flexible transparent conductive films with ultra-high adhesion

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Surfaces and Interfaces 2025年 70卷

作者： Qian, Peng-Fei Wang, Tao Geng, Wen-Hao Bao, Ze-Long Jing, Li-Chao Guo, Yu-Long Li, Tong-Yu Wang, Tian-Li Wang, Yue-Xin Geng, Hong-Zhang Tianjin Key Laboratory of Advanced Fibers and Energy Storage School of Material Science and Engineering Tiangong University Tianjin 300387 China Faculty of Engineering China University of Petroleum-Beijing at Karamay Karamay 834000 China Tianji Zhencai Technology (Hebei) Co. Ltd. Cangzhou 061000 China Hebei Province Technology R&D Platform Special Project Hebei Industrial Technology Research Institute of Membranes Cangzhou Institute of Tiangong University Cangzhou 061000 China

The escalating demand for flexible intelligent wearable electronic devices has garnered increasing attention towards the research of high-performance and multifunctional flexible transparent conductive films (TCFs). In this study, Poly(3,4-ethylenedioxythiophene):Poly(styrene-sulfonic acid) (PEdOT:PSS) was doped with 3,4-dimethylbenzoic acid (PA) and tannic acid (TA) (PATA), resulting in the formation of a sandwich structure with silver nanowires (AgNWs). due to the abundant phenol hydroxyl groups present in PA and TA, a significant number of hydrogen bonds were formed between the conductive layers, resulting in enhanced adhesion of the conductive layer to the substrate. The flexible TCFs, featuring a PATA/AgNWs/PATA/AZO multilayer structure, were fabricated through the deposition of aluminium-doped zinc oxide (AZO) on the topmost layer. The TCFs also exhibited the characteristics of low surface roughness, high adhesion, excellent oxidation resistance, superior light transmission, and minimal electrical resistance. The organic light-emitting diode (OLEd) devices, utilizing this type of films, demonstrated a peak brightness of 28,810 cd/m², a maximum external quantum efficiency (EQE) of 4.97 %, and achieve peak current and power efficiencies (C.E. and P.E.) of 13.5 cd/A and 7.5 lm/W, respectively. The films also exhibited exceptional electrothermal properties, with a temperature exceeding 110 °C and maintaining stability at a voltage of 1.6 V. The TCFs of this structure also exhibited exceptional electromagnetic interference (EMI) shielding efficiency, with an EMI shielding efficiency of 31.4 dB achieved at a light transmission rate of 70 %. This performance is comparable to that of the current mainstream transparent EMI shielding films. Those characteristics endow TCFs with significant potential for application in the field of flexible electronic devices. © 2025

关键词： Electric heating Electromagnetic interference shielding High adhesion OLEd TCFs

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Multiple dynamic evaluation and information management of research talents

Multiple dynamic evaluation and information management of re...

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Education, Knowledge and Information Management (ICEKIM), International Conference on

作者： dongsheng Li Yaping ren Drilling Equipment and Technology R&D Center Xi 'an Research Institute Co. LTD. China Coal Technology & Engineering Group Xi'an China Technology Development Department Xi'an Research Institute Co. LTD. China Coal Technology & Engineering Group Xi'an China

ISBN: (纸本)9781665416672

In order to solve the problem of talent evaluation and information management in manufacturing enterprises, a diversified dynamic evaluation information management system for manufacturing research talents and teams is constructed. Through the clustering algorithm of scientific research results built into the IPd talent information management system, the scientific research talents in the product development process are classified into five categories: basic research, applied research, technology development, results transformation and science and technology management services. The system scores the diversity indicators of research individuals with hierarchical analysis, and the four dimensions of finance, customers, internal operation, and learning and growth with the balanced scorecard method. The system has the function of classifying the information of scientific research achievements of enterprise talents; the function of storing, managing and classifying the information of scientific research talents; and the function of retrieving the information of scientific research achievements and talents for the decision-making level. The research on the multiple dynamic evaluation and information management system of scientific research talents is useful for improving the evaluation mechanism of r&d talents and teams, scientific research achievements and talent information management in manufacturing enterprises.

关键词： Symbiosis technology management Heuristic algorithms Education Finance Product development Manufacturing

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From requirements to prototyping: Application of human-system integration methodology to digital twin design 23

From requirements to prototyping: Application of human-syste...

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23rd International Conference on Engineering design, ICEd 2021

作者： Camara dit Pinto, Stélian Masson, dimitri Villeneuve, Eric Boy, Guy Urfels, Laetitia Université Paris-Saclay CentraleSupélec Laboratoire Génie Industriel Gif-sur-Yvette91190 France UNIV. BORDEAUX ESTIA INSTITUTE OF TECHNOLOGY BidartF-64210 France TOTAL SE R&D Program Gas and Sustainable development Pau64000 France

Industrial digital transformation is bringing a need for new tools and concepts. However, designing such complex tools and concept requires methods to be correctly implemented. These methods are studied as part of system engineering to satisfy various identified goals, and more specifically human-system integration, which is the topic of this paper. This article introduces the method used to define key elements of human perception of reality called reality anchors to design scenarios to be tested in a digital twin prototype. This method goes from regulation study to user cognitive function analysis on the specific case of digital twin designing in oil-and-gas industry. This method highlighted the differences between theoretical process and the followed process as well as tools and competencies used to identify reality anchors. This knowledge will then be used to implement a new process to be implemented with a digital twin and scenarios to test the prototype using realistic simulation. © ICEd *** right reserved.

关键词： Anchors

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Effect of Sds on the Formation and Blockage Characteristics of Ch4 Hydrate in a Flow Loop

SSRN

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SSrN 2022年

作者： Zang, Chunyang Ma, Guiyang Huang, Shaochang Qin, Yue Ao, di Liu, Chaoguang Zhang, Yuda College of Petroleum Engineering Liaoning Petrochemical University Liaoning Fushun113001 China Research Institute of Petroleum Exploration & Development Beijing100083 China CNPC Engineering Technology R&D Company Limited Beijing102206 China

Anti-agglomeration is an ideal solution for the reduction of gas hydrate risks in deep-sea pipelines. Currently, the ineffectiveness of water-based systems limits their application. To ensure safe flow within a pipeline, a high-pressure flow loop with observation windows was designed, and SdS was used as an anti-agglomerant (AA). A series of CH 4 hydrate formation and slurry flow experiments was carried out under horizontal and inclined flow loops. The growth and blockage rules of hydrates in SdS solution and the effects of different factors on the hydrate induction period and blockage time were obtained. The experimental results show that SdS has a good anti-agglomeration effect in the water-based system. After the addition of SdS, the hydrate can only minimally deposit on the wall, allowing the hydrate slurry to flow stably for a long time and a higher volume fraction. Increasing the flow rate can prolong the hydrate slurry flow time. With the increase in the inclination angle of the loop, hydrate particles with larger particle sizes are more likely to appear, and the time until blockage is decreased. The flow rate in the loop decreases with increasing hydrate particle size. Understanding the flow process and blockage trend of hydrate slurry in a pipeline transportation system can, to an extent, provide a reference for the industrial application of CH 4 hydrate slurry flow. © 2022, The Authors. All rights reserved.

关键词： Agglomeration

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Analysis Method for Magnetic Field Strength on On-Board Antenna due to Inverter Common-Mode Noise at Whole Train Level

Analysis Method for Magnetic Field Strength on On-Board Ante...

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IEEE International Symposium on Electromagnetic Compatibility - EMC Europe

作者： Keisuke Fukumasu Masayuki Nunokawa Umberto Paoletti Kiyoto Matsushima Toshiaki Takami Reliable Electronic Systems Research Department Hitachi Ltd. R&D Group CSU-Production Enginnering Kanagawa Japan Rolling Stock Department Shinkansen Operations Division Central Japan Railway Company Tokyo Japan Technology Research and Development Department Central Japan Railway Company Aichi Japan

In order to reduce malfunctions of on-board equipment due to noise generated by inverters in rolling stock, a method for analyzing magnetic field noise received by on-board equipment is required. To achieve this, it was necessary to identify the main currents among the noise currents flowing near the onboard antenna and to construct a model that takes into account the phase of those currents. In the work reported here, we identified that the imbalance between the left and right rail currents contributes to the magnetic field noise and constructed a vehicle-level analysis model that includes these noise currents. The analysis confirmed that the model can represent the variation of noise fluctuation for each frame structure around the on-board equipment up to 2 MHz.

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New technology for Improving Water Flooding Efficiency by Adjusting Advantage Channels 8th

New Technology for Improving Water Flooding Efficiency by Ad...

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8th International Field Exploration and development Conference, IFEdC 2019

作者： Shao, Li-ming Fang, Ping-liang Wei, Fa-lin dai, Ming-li Li, Wei-tao Research Institute of Petroleum Exploration and Development PetroChina Beijing100083 China CNPC Engineering Technology R&D Company Limited PetroChina Beijing100083 China

ISBN: (纸本)9789811524844

Underground cross-linking profile control and water shutoff and deep fluid flow to chemical agent system are usually composed of main agent, cross-linking agent and additives. The cost of cross-linking agent and additives generally accounts for 30–50% of the total cost of the system. Many inorganic salt ions are widely used as cross-linking agent or additives. In this paper, using Ca2+ and Mg2+ scale forming ion source in CaCl2 water type oilfield high salinity formation water (as water injection) as crosslinking agent, cross-linking of original inorganic microgel is carried out to reduce the cost of steering agent. The formation of nano microscale inorganic microgel with density similar to that of environmental water source can be formed by cross-linking of the steering agent with scale forming ions in formation water. The microgel can be dispersed or suspended in water, and gradually adsorbed on the rock skeleton of the dominant channel such as hole or crack to form a micro gel coating in order to narrow the flow dominant channel and form resistance to flow. The passage of plugging does not die, achieving the purpose of adjusting the dominant channel, expanding the volume and improving the efficiency of water flooding. At the same time, the particle size of the micro gel can prevent it from entering the low permeability matrix to contaminate the oil layer. The diversion agent has the characteristics of rapid dissolution, temperature resistance, salt resistance, environmental protection, long-term effectiveness and no construction risk. Field tests of deep profile control and flooding have been carried out in reservoirs with different temperature and salinity at home and abroad. After profile control diversion in test blocks or well groups, the effect of improving water flooding is good. The average increase of water injection pressure is 2–3 MPa, and the effective rate of increasing oil production and precipitation in oil wells is more than 80%, and the validity p

关键词： Chlorine compounds

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An end-edge-cloud technology architecture for integrated intelligent control of small hydropower - an example from Hunan Province, China 10

An end-edge-cloud technology architecture for integrated int...

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10th International Forum on Electrical Engineering and Automation, IFEEA 2023

作者： Zhou, Zhuomin Liang, Jian Yu, Aiqin Qin, Zhengbin Liu, Haotian Sheng, Yanchao Guo, Wei State Grid Hunan Electric Power Company Limited Hunan Key Laboratory of Energy Internet Supply Demand and Operation Development Planning Department Changsha China State Grid Hunan Electric Power Company Limited Institute of Economic Research Hunan Key Laboratory of Energy Internet Supply Demand and Operation Changsha China State Grid Xiangtan Electric Power Company Limited Institute of Economic Research Changsha China Three Gorges Intelligent Industrial Control Technology Co. Ltd. R&d Department Wuhan China

ISBN: (纸本)9798350309379

The main technical issues for small hydropower currently are aging equipment and insufficient intelligence level, which cannot effectively support the development of new power systems. To solve this problem, this paper proposes an end-edge-cloud technology architecture for intelligent control of small hydropower. Specifically, an intelligent sensing architecture for small hydropower units is proposed, which can fully sense the operating conditions of small hydropower units. An edge computing PLC with IOT functions is proposed, which can effectively integrate the speed regulation, excitation, monitoring and protection algorithms of small hydropower units, and can greatly simplify the complexity of control systems. At the same time, the edge computing PLC transmits the on-site operation data to the cloud platform through high-density compression transmission, and uses big data analysis and processing technology to realize centralized monitoring and remote operation and maintenance of small hydropower stations within the province. Finally, the intelligent sensing, integrated edge control device and cloud platform proposed in this paper are technologically verified at a small hydropower station in Jingshan reservoir, and the results fully demonstrate the effectiveness of this technical architecture. © 2023 IEEE.

关键词： control end-edge-cloud technology architecture IOT-PLC small hydropowert

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