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Study of CO_(2)Flooding to Improve Development Effect in Conglomerate Reservoirs

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Energy Engineering 2022年第4期119卷 1681-1695页

作者： Haihai Dong Yaguang Qu ming Liu lei Zhang Jiakun wu Research Institute of Exploration and Development Petrochina Xinjiang Oilfield CompanyKaramay834000China School of Petroleum Engineering Yangtze UniversityWuhan430100China Ministry of Education Key Laboratory of Oil&Gas Resources and Exploration Technology Wuhan430100China Xinjiang Oilfield Company of CNPC Karamay834000China Karamay Drilling Company of CNPCWest Drilling Corporation Karamay834000China

For low permeability sandstone reservoirs,CO_(2)flooding has been proved to be an effective method to enhance oil *** A is a typical conglomerate reservoir in Xinjiang *** reservoir has strong water sensitivity,and the injection pressure continues to *** the oil well pressure continues to *** to the screening conditions of CO_(2)flooding,the reservoir A can easily achieve CO_(2)miscible flooding with moderate *** the reservoir has the advantage of being close to the gas ***,the relationship curve between CO_(2)oil displacement efficiency and oil displacement pressure was obtained by changing the oil displacement pressure using the fine-tube experimental model,and the minimum miscible pressure of CO_(2)oil displacement was *** minimum miscible pressure of reservoir A was 24.1 *** change of oil phase state after CO_(2)injection was further studied by CO_(2)gas expansion *** results show that the saturation pressure of formation oil increases significantly after CO_(2)injection,and the more CO_(2)injection,the higher the saturation pressure of formation *** the CO_(2)content in the injected crude oil is 55.29 mol%,the saturation pressure of the CO_(2)formation crude oil system reaches 31.60 ***,in order to better simulate the real reservoir conditions of conglomerate reservoir,the 2D visualization model of the outcrop was processed to analyze the microscopic oil displacement mechanism of CO_(2).The experimental results show that the remaining oil after water flooding mainly exists in the form of cluster,film,column and blind end,and the remaining oil after gas flooding exists in the form of island,cluster and film,and there is an obvious gravity overlay ***_(2)flooding after water flooding significantly improved sweep efficiency and enhanced ***,through the analysis of CO_(2)field injection effect in reservoir A,it is shown that CO_(2)absorp

关键词： CO_(2)flooding physical simulation miscible pressure enhanced oil recovery

Hierarchical Network-Augmented Hydroglasses for Broadband Light Management

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Research 2021年第1期2021卷 195-206页

作者： Zhouyue lei Baohu wu Peiyi wu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of ChemistryChemical Engineering and BiotechnologyCenter for Advanced Low-Dimension MaterialsDonghua UniversityShanghai 201620China John A.Paulson School of Engineering and Applied Sciences Harvard UniversityCambridgeMA 02138USA Jülich Centre for Neutron Science(JCNS)at Heinz Maier-leibnitz Zentrum(MLZ)Forschungszentrum Jülich Lichtenbergstr.185748 GarchingGermany

Light management is essential for military stealth,optical information communication,and energy-efficient ***,current light management materials face challenges of limited optical modulation range and poor mechanical ***,we report a locally confined polymerization(LCP)approach to develop hierarchical network-augmented hydroglasses(HNAH)based on poly(methacrylic acid)for broadband light management as well as mechanical *** dynamic geometry of the networks ranging from nano-to micro-scale enables to manage the light wavelength over three orders of magnitude,from the ultraviolet(UV)to infrared(IR)band,and reversibly switches transmittance in the visible region.A smart hydroglass window is developed with elasticity,outstanding robustness,self-healing,notch resistance,biosafety by blocking UV radiation,and high solar energy shielding efficacy with a temperature drop of 13℃.Compared to current inorganic glasses and Plexiglas,the hydroglass not only is a promising and versatile candidate but also provides novel insights into the molecular and structural design of broadband light management and optimized mechanical properties.

关键词： glasses versatile ultraviolet

Effects of Zr addition on microstructure and toughness of simulated CGHAZ in high-strength low-alloy steels

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Journal of Iron and Steel Research International 2019年第10期26卷 1117-1125页

作者： Jin-wei lei Kai-ming wu Yu Li Ting-ping Hou Xing Xie RDKMisra The State Key Laboratory of Refractories and Metallurgy Hubei Province Key Laboratory of Systems Science on Metallurgical ProcessingInternational Research Institute for Steel TechnologyWuhan University of Science and TechnologyWuhan 430081HubeiChina wuhan Second Ship Design and Research Institute Wuhan 430064HubeiChina Department of Metallurgical and Materials Engineering University of Texas at El PasoEl PasoTX 79968USA

The effect of Zr addition(0.005,0.013,and 0.054 wt.%)on the microstructure and toughness of simulated coarse-grained heat-affected zone in high-strength low-alloy steels was revealed using a Gleeble 2000 thermal *** was observed that elongated MnS inclusions were formed in the lowest Zr-containing steel,while only pure equiaxed ZrO2 existed in the 0.054Zr steel(Zr content of 0.054 wt.%).Complex oxide-sulfide inclusions(ZrO2+MnS)with size of(1.40±0.25)μtm were formed in 0.013Zr steel(Zr content of 0.013 wt.%).The complex inclusions refined the prior austenite grain,and the nucleation of acicular ferrite was promoted compared to those of 0.005Zr steel(Zr content of 0.005 wt.%)and 0.054Zr ***,the 0.013Zr steel possessed superior low-temperature impact toughness in relation to 0.005Zr and 0.054Zr ***,moderate Zr addition can be considered as an effective method to refine the structure and improve the mechanical properties of the coarse-grained heat-affected zone.

关键词： High-strength low-alloy steel Welding Heat-affected zone Heat input Zirconium addition

Overexpression of the maize GRF10, an endogenous truncated growth-regulating factor protein, leads to reduction in leaf size and plant height

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Journal of Integrative Plant Biology 2014年第11期56卷 1053-1063页

作者： lei wu Dengfeng Zhang ming Xue Jianjun Qian Yan He Shoucai Wang National Maize Improvement Center of China Key Laboratory of Maize Biology and Genetic Breeding of Ministry of AgricultureChina Agricultural University Institute of Crop Science The Chinese Academy of Agricultural Sciences

It has long been thought that growth‐regulating factors（GRFs） gene family members act as transcriptional activators to play important roles in multiple plant developmental processes. However, the recent characterization of Arabidopsis GRF7 showed that it functions as a transcriptional repressor of osmotic stress‐responsive genes. This highlights the complex and diverse mechanisms by which different GRF members use to take action. In this study, the maize（Zea mays L.） GRF10 was functionally characterized to improve this concept. The deduced ZmGRF10 protein retains the N‐terminal QLQ and WRC domains, the characteristic regions as protein‐interacting and DNA‐binding domains, respectively. However,it lacks nearly the entire C‐terminal domain, the regions executing transactivation activity. Consistently, ZmGRF10 protein maintains the ability to interact with GRF‐interacting factors（GIFs） proteins, but lacks transactivation *** of ZmGRF10 in maize led to a reduction in leaf size and plant height through decreasing cell proliferation,whereas the yield‐related traits were not affected. Transcriptome analysis revealed that multiple biological pathways were affected by ZmGRF10 overexpression, including a few transcriptional regulatory genes, which have been demonstrated to have important roles in controlling plant growth and development. We propose that ZmGRF10 aids in fine‐tuning the homeostasis of the GRF‐GIF complex in the regulation of cell proliferation.

关键词： GIF growth-regulating factor maize overexpression RNA-Seq transcriptional activator

Science Letters:Hydrogen transfer reduction of ketones using formic acid as a hydrogen donor under hydrothermal conditions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第11期10卷 1631-1635页

作者： Zheng SHEN Fang-ming JIN Ya-lei ZHANG Bing wu Jiang-lin CAO State Key Laboratory of Pollution Control and Resources Reuse MOE Key Laboratory of Yangtze River Water Environment College of Environmental Science and Engineering Tongji University Shanghai 200092 China

The hydrothermal experiments with ketones and formic acid showed that the hydrogen transfer reduction of ketones can be conducted using formic acid as a hydride donor in the presence of NaOH at 300 ℃. The yield of alcohols was considerably higher at a much lower ratio of hydrogen source to ketones than the traditional Meerwein-Ponndorf-Verley （MPV） reduction, reaching 60% for isopropanol from acetone and 70% for lactic acid from pyruvic acid. Water molecules may act as a catalyst in the hydrogen transfer reduction of ketones under hydrothermal conditions.

关键词： Hydrogen transfer reduction Formic acid Ketone Hydrothermal reaction

Multiple Tin Compounds Modified Carbon Fibers to Construct Heterogeneous Interfaces for Corrosion Prevention and Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 507-527页

作者： Zhiqiang Guo Di Lan Zirui Jia Zhenguo Gao Xuetao Shi Mukun He Hua Guo Guanglei wu Pengfei Yin College of Science Sichuan Agricultural UniversityYa’an 625014People’s Republic of China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002People’s Republic of China Institute of Materials for Energy and Environment State Key Laboratory of Bio‑Fibers and Eco‑TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071People’s Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China

Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly ***-component interface engineering is considered an effective means to achieve high-efficiency EMW ***,interface modulation engineering has not been fully discussed and has great potential in the field of EMW *** this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal *** utilizing the different properties of different substances,rich heterogeneous interfaces are *** effectively promotes charge transfer and enhances interfacial polarization and conduction *** prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy *** minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 ***,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel ***,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.

关键词： Electrostatic spinning Component regulation Heterogeneous interfaces Electromagnetic wave absorption Corrosion protection

新型工业化背景下中国重点区域绿色工业发展研究

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河南社会科学 2025年第1期33卷 71-81页

作者：吴三忙李佳蔓雷涯邻中国地质大学(北京)经济管理学院北京100083

聚焦新型工业化进程中的区域绿色工业发展,基于国家重大区域发展战略和“双碳”目标的要求,构建包含产业结构高端化、能源消费低碳化、资源利用循环化、生产过程清洁化、产品供给绿色化、生产方式数字化六个维度的综合评价指标体系。采... 详细信息

聚焦新型工业化进程中的区域绿色工业发展,基于国家重大区域发展战略和“双碳”目标的要求,构建包含产业结构高端化、能源消费低碳化、资源利用循环化、生产过程清洁化、产品供给绿色化、生产方式数字化六个维度的综合评价指标体系。采用改进熵值法对2011—2021年中国294个城市的绿色工业发展水平进行测度,系统评估京津冀、长三角、粤港澳大湾区、长江经济带、黄河流域及东北地区6个重点区域的发展特征。研究发现:(1)区域绿色工业发展呈现显著的空间分异,整体上形成东部领先、中西递减的空间格局,粤港澳大湾区和长三角形成结构双核心发展区。(2)各区域展现出差异化的发展路径,东部沿海地区在产业结构高端化和生产方式数字化等方面全面领先,京津冀在资源利用循环化方面形成特色,长三角在产品供给绿色化方面优势突出。(3)2011—2021年各区域绿色工业发展水平均显著提升,但增长模式和速度存在差异,反映出发展的阶段性和渐进性特征。研究结果对推进新型工业化进程中的中国区域绿色工业协调发展,具有重要的理论和政策启示意义。

关键词：绿色工业新型工业化区域发展评价指标空间分异

Fabrication and sustained release properties of porous hollow silica nanoparticles

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Science China Chemistry 2010年第3期53卷 555-560页

作者： Xu, Hong Tao Wang, Xin Shou Tao, lei ming wu, Si Xin Key Laboratory for Special Functional Materials of Ministry of Education Henan University Kaifeng 475004 China

MCM-41-type mesoporous silica nanospheres(MSN) have been prepared using n-cetyltrimethylammonium bromide(CTAB) as a soft *** pseudo-moire' rotational pattern inside the MSN results in many interior *** mesoporous silica(HMS) spheres were synthesized by solvent extraction of the template from *** morphology and structure of MSN and HMS were studied by TEM,XRD and nitrogen sorption techniques.A model drug,bromocresol green dye,was packed inside different regions of HMS through impregnation at different pressures and temperatures,and the drug release performance of the resulting materials was *** results showed that vacuum evaporation of solvents may enhance the controlled release properties.

关键词： pseudo-moire’ rotational pattern hollow silica release

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非静水压作用下石膏电学性质的理论研究

原子与分子物理学报 2025年第6期42卷 129-135页

作者：周梅吴雷罗小松何宗润贵州民族大学物理与机电工程学院贵阳550025 重庆大学能源与动力工程学院重庆400044

地球内部广泛存在着差应力,这些外在因素的存在影响着矿物的性质,而矿物的电学性质与结构相变息息相关.为了更加了解地球内部结构与动力学过程,采用第一性原理方法,在等效平衡压0~10 GPa范围内计算地球内部浅层矿物石膏在静水压和非静... 详细信息

地球内部广泛存在着差应力,这些外在因素的存在影响着矿物的性质,而矿物的电学性质与结构相变息息相关.为了更加了解地球内部结构与动力学过程,采用第一性原理方法,在等效平衡压0~10 GPa范围内计算地球内部浅层矿物石膏在静水压和非静水压条件下的电学性质.计算结果表明:静水压和非静水压条件下无水石膏的密度和带隙变化基本一致,但二水石膏的密度和带隙在非静水压为6 GPa附近发生突变,这可能是由于非静水压环境使晶体结构更容易发生畸变,更有利于水分子氢键网络的重新排列和CaSO_(4)层间结构的塌缩,因此非静水压下可能更加有利于二水石膏在高温高压下的脱水反应.这对理解地幔中矿物的脱水和储水产生重大的影响,为理解地幔中矿物的脱氢和储水提供理论依据.

关键词：差应力石膏电学性质第一性原理

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