Zhen Nie

Lanzhou University

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Bohong Wu

Zhejiang University

Shuzhe Shi

Research Institute of Petroleum Exploration and Development

Chunpeng Wang

Institute of Chemical Industry of Forest Products

Yanna Zhang

Peking Union Medical College Hospital

Gui Hu

Research Institute of Petroleum Exploration and Development

Hou Xianhua

Shuzhe Shi

McGill University

Yanna Zhang

Henan Normal University

Mianping Zheng

Ministry of Natural Resources

Weixiang Cui

Research Institute of Petroleum Exploration and Development

Cooperative Institutions

Research Institute of Petroleum Exploration and Development

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Chinese Academy of Geological Sciences

China National Petroleum Corporation (China)

Ministry of Natural Resources

Southwest Petroleum University

Lanzhou University

University of Science and Technology Beijing

China University of Geosciences (Beijing)

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Optimization Design of Hydraulic Impactor for Oil and Gas Drilling

Springer series in geomechanics and geoengineering (2024)

Xueqin Huang Gui Hu Zhen Nie Shuzhe Shi Bohong Wu

10.1007/978-981-97-0256-5_37

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Mechanical Analysis and Application of Multi-stage Fracturing String in Horizontal Well

Springer series in geomechanics and geoengineering (2023)

Xueqin Huang Zhen Nie Yuan-bing Wu Bao-kui Gao Gui Hu

Section (typography)

10.1007/978-981-99-1964-2_226

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Prediction of Scaling Risk in Water Injection Development in Rumaila Oilfield in the Middle East

Springer series in geomechanics and geoengineering (2023)

Yanna Zhang Zhen Nie Zhengrong Ye

Produced water

Water flooding

10.1007/978-981-99-1964-2_394

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A pH-Controlled Intelligent Inhibitor Based on PAM Hydrogel for Steel Corrosion Protection in Wide Range pH NaCl Medium

Qing Yang Lin Bing Junlei Tang Yingying Wang Hongpeng Zheng

To provide carbon steel a long corrosion protection effect in NaCl solution with various pH, a pH-controlled intelligent inhibitor based on poly-acrylamide (PAM) and oleate imidazoline (OIM) was synthesized. SEM, FT-IR and TGA results indicating the OIM inhibitor was successfully loaded into PAM hydrogel with a very high content (39.64 wt%). The OIM release behavior from hydrogel structure have two stages, quickly release and sustained release. The pH of solution could affect the initial release kinetics of OIM inhibitor and the diffusion path in hydrogel structure. Weight loss measurement of L80 steel in different pH solution with OIM@PAM proved the inhibitor responsive release mechanism and an-ti-corrosion performance. The inhibition efficiency of OIM@PAM can maintain over 80% after long term immersion in harsh corrosive environment (pH 3), which is much higher than the inhibition efficiency of inhibitor in moderate corrosive solution.

Corrosion inhibitor

Carbon steel

10.20944/preprints202212.0512.v1

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Inclination-Hold Angle Optimization of Extended Reach Well: For the Maximum Extension in Target Formation Under its Pressure-Bearing Limitation

Qimin Liang Xia Bairu Zhen Nie Baokui Gao

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Comparatively Study on Undergraduate's Body Shape,Physical Function,and Stamina of Liaoning Province in 2005

Shenyang Tiyu Xueyuan xuebao (2007)

Zhen Nie

Using the survey and statistics,this paper analyzed undergraduate's body shape,physical function and stamina from the urban and rural areas.The results are as follows:Urban student's height,weight,chest measurement were higher than rural areas.Except that weight was lower than that of mean 2000 level,total level was higher than that of 2000.Urban student's fat phenomenon was more than rural.Urban student's function of heart and lung,lung capacity was lower and surpasses that of students from rural areas of Liaoning province.Male student's function of heart and lung was higher than that of students of the year 2000.Female student's function of heart and lung obviously went down.The rural student's stamina totally surpassed the urban areas.The student's stamina of Liaoning province went down critically.

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Salinity Gradient Solar Ponds: Lessons learned and the way forward

Solar Energy (2022)

Aliakbar Akbarzadeh Mahmoud Farrokhi Peter Golding Zhen Nie Nan Li

Solar pond

10.1016/j.solener.2022.11.004

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The Significance of Agricultural Modernization Development for Agricultural Carbon Emission Efficiency in China

Agriculture (2024)

Suhan Zhang Xue Li Zhen Nie Yan Wang Danni Li

Agricultural production contributes to the increase in global carbon emissions. It is crucial to improve output and reduce carbon emissions in the context of agricultural modernization, for which improved carbon emission efficiency is key. However, the role of agricultural modernization in promoting agricultural carbon emission efficiency is not clear. Hence, the aim of this article is to analyze the spatiotemporal evolution of agricultural modernization and agricultural carbon emission efficiency in China from 2000 to 2019 and to reveal the relationship between agricultural modernization and agricultural carbon emission efficiency. The results showed that (1) in China, the overall level of agricultural modernization has been steadily increasing, and the regional differences are widening, showing a spatial pattern characterized by a gradual decline from the eastern and central regions to the western region. (2) China’s agricultural carbon emission efficiency continues to grow but has not achieved a data envelopment analysis (DEA) effect, with the eastern and western regions having higher agricultural carbon efficiency than the central region. The regional differences first narrow and then expand. (3) Agricultural modernization significantly promotes agricultural carbon emission efficiency in both the province and the neighboring provinces, and the interprovincial spillover effect exceeds the direct effect within the province. A nonlinear correlation exists between agricultural modernization and agricultural carbon emission efficiency.

Carbon fibers

10.3390/agriculture14060939

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First-Principles Study on the Adsorption Characteristics of Corrosive Species on Passive Film TiO2 in a NaCl Solution Containing H2S and CO2

Metals (2022)

Pan Dong Yanna Zhang Shidong Zhu Zhen Nie Haixia Ma

The adsorption characteristics of corrosive anions (Cl−, HS−, S2−, HCO3− and CO32−) on TiO2 of TC4 titanium alloy in a NaCl solution containing H2S and CO2 were studied by density functional theory (DFT). The stable adsorption configuration of each corrosive species on the TiO2 (110) surface was obtained by geometric optimization, and the electronic structure and interface binding energy were calculated and analyzed. The results showed that the optimal adsorption positions of Cl−, HS−, S2−, HCO3− and CO32− on TiO2 (110) were all bridge positions. There was a strong charge interaction between the negatively charged Cl, S and O atoms in Cl−, HS−, S2−, HCO3− and CO32− and the positively charged Ti atoms of TiO2. The interface bonding was mainly caused by charge movement from around Ti atoms to around Cl, O, S atoms. The energy levels were mainly caused by the electron orbital hybridization of Cl-3p5, S-3p4, O-2p4 and Ti-3d2. All adsorption configurations were chemical adsorption. The order of influence of the five ions on the stability of TiO2 was S2− > CO32− > Cl− > HS− > HCO3−. Finally, a novel corrosion mechanism was proposed to illustrate the dynamic evolution processes of pits.

Charge density

10.3390/met12071160

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Citations (44)

Crowd Counting Network with Self-attention Distillation

Proceedings of International Conference on Artificial Life and Robotics (2020)

Wang Li Huailin Zhao Zhen Nie Yaoyao Li

10.5954/icarob.2020.os11-12

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Citations (1)