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25 November 2023, Volume 50 Issue 11 Previous Issue    Next Issue

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Policy and Strategy Research

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Current Situation and Research Direction of Marine Policy for Offshore Photovoltaic Power Generation in Tianjin JIN Yudan, NIU Fuxin, WANG Bin, LI Yujie, XUE Peilin 2023, 50 (11):  1-4.  Abstract ( 510 )   Save At present,the green and low-carbon industry has received strong support from the state,and offshore photovoltaic power generation,as an emerging industry,is gradually entering the market. Coastal provinces have introduced relevant marine policies,among which Shandong,Zhejiang and other provinces have the most mature policies. Tianjin,a significant city in Bohai Economic Zone,has also introduced relevant policies to support the development of offshore photovoltaic power generation projects. However,these policies still need to be enriched and improved. By analyzing the marine situation and related policies of other coastal provinces and cities,reasonable suggestions are proposed for the formulation of marine policies for offshore photovoltaic power generation in Tianjin. References | Related Articles | Metrics

Management & Innovation

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Analysis of Common Problems and Optimization of Management Strategies in Lubricant Procurement LI Mingqiang 2023, 50 (11):  5-7.  Abstract ( 482 )   Save Starting from the selection and management of lubricants in oil-consuming enterprises,this paper introduces the physicochemical properties and classification of lubricants,deeply analyzes and explores three common problems in lubricants procurement management：fixed oil brand and model,complex oil types,and decoupling between oil enterprises and manufacturers. Relevant optimization strategies for oil procurement and management are proposed. Taking Bohai Oilfield as an example,the optimization strategies and application results adopted by oil-consuming enterprises based on their own actual situation are further elaborated to provide reference basis for high-quality procurement and management of lubricant in enterprises in the future,improve the quality of equipment lubrication services,reduce operating costs,and promote high-quality development of enterprises. References | Related Articles | Metrics

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Research on Problems and Countermeasures of Innovative Service System of Rural Financial Institutions CUI Wei 2023, 50 (11):  8-10.  Abstract ( 531 )   Save Rural finance refers to all monetary circulation and financial activities related to agriculture,rural areas and farmers. Rural financial institutions have special characteristics in the financial system,making important contributions and playing a crucial role in China's economic construction and development. This paper focuses on the problems in the innovative service system of the rural financial institutions in China,and proposes optimization strategies for the innovative service system of rural financial institutions. The main problems in the innovative service system of rural financial institutions in China include：low asset scale,high operating costs,and low profitability of rural financial institutions;The types of rural financial products are single and lack innovation;The environment for the development of rural financial system is poor and services are not in place;The rural financial risk protection system is not perfect. The optimization strategies for the innovative service system of rural financial institutions in China include：implement inclusive finance,strengthen self construction,highlight innovative advantages and improve supporting services. References | Related Articles | Metrics

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Analysis of Common Risks in Use of Financial Science and Technology Funds QIAN Bingyi, ZHUANG Yuting, YIN Qian 2023, 50 (11):  11-14.  Abstract ( 476 )   Save The support of financial science and technology funds for scientific and technological innovation activities has been continuously strengthened. Due to the large number and wide range of objects supported by financial science and technology funds,there are differences in the understanding of relevant policies among various entities,which inevitably leads to non-standard phenomena in the use of funds. Based on the audit process and results of financial science and technology funds,this paper analyzes the causes of relevant problems around the common problems and risk points in the use of financial science and technology funds,and puts forward corresponding countermeasures and suggestions on this basis,providing reference for the use and management of financial science and technology funds. References | Related Articles | Metrics

Basic Research

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Explosion-proof Design of Firewall for Living Quarter on Offshore Central Platform HOU Chenguang, WU Lei, XUE Chunfang, LIANG Jianbin, WANG Weiming 2023, 50 (11):  15-17.  Abstract ( 511 )   Save The main hazardous substances in the processing of the offshore oil and gas field central platform are natural gas and condensate. Due to limited space on the platform,the layout of process equipment,electrical rooms,and living quarters is relatively compact. The living quarter is the place where platform operators live and work,and lifeboats and helidecks are also arranged on the living quarter. The importance of the living quarter is self-evident. Once oil and gas leaks on the platform,fire or explosion may occur when encountering an ignition source,which has a significant impact on personnel and platform safety. Through fire and explosion analysis,this paper calculates the impact of explosion overpressure on the living quarter,guiding the explosion-proof design of the firewall in the living quarter to ensure the safety of the living quarter. References | Related Articles | Metrics

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Research on On-line Monitoring Technology of Anticorrosive Coating Aging of Offshore Platform CHENG Yu, LIU Chuanbin, LI Bingyan 2023, 50 (11):  18-20.  Abstract ( 496 )   Save Anticorrosive coating can prevent the corrosion of steel structure and increase the service life of steel structure. Due to the influence of various factors,the anticorrosive coating will produce cracks,corrosion,bubbling and spalling,which greatly reduces the protective effect of anticorrosive coating,affects the strength of steel structure equipment,and brings hidden dangers to the safety of production. The coating aging evaluation of offshore platform jacket is very important for structural evaluation. The on-line monitoring technology of electrochemical impedance spectroscopy is used to realize the on-line monitoring of coating aging degree by placing probes at key parts,and to predict coating aging degree and maintenance probability in advance,which plays a positive role in improving coating performance and extending the service life of offshore platform. References | Related Articles | Metrics

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Application of BIM Technology in Engineering Design of Semi-underground Sewage Treatment Plant MENG Xianglei, LI Yan 2023, 50 (11):  21-24.  Abstract ( 522 )   Save In order to improve the design level and respond to national policy requirements,taking the forward construction drawing design process of a sewage treatment plant as an example,based on Revit software,a detailed comparative analysis was conducted on the selection of collaborative platforms,collaborative method planning,software and hardware requirements,view templates,equipment production,data security,and other preliminary preparations. Practice was conducted on how to proofread,provide information,synchronize structural data,and adjust the collision of management and integration during the design process. A forward design process suitable for underground sewage plants is summarized. It is proposed that problem-solving should be the core,and various conditions such as technology,manpower,resources,design cycle,and design fees should be fully considered. On the basis of current technological feasibility,it should be steadily promoted step by step without increasing too much resource investment and changing too many design management processes. References | Related Articles | Metrics

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Analysis of Reasons for Filter Blockage in Wax Oil Hydrogenation Water Injection Pipeline ZHENG Weihua, ZHOU Lingjie, WU Meiling, ZHAO Kepin 2023, 50 (11):  25-29.  Abstract ( 499 )   Save Wax oil is a gas-phase reaction product of the hydrogenation unit. Before entering the cold high-pressure separator,it needs to be injected with a mixture of desalinated water and stripping purified water. Due to the overhaul of the device,the pipeline filter in front of the water injection pump is blocked periodically after restart,and the filter needs to be cleaned every 20 days or so. The analysis of the filter blockages shows that the blockages are organic matter. An analysis of the hardness,suspended solids,and bacterial count of the two incoming streams before the water injection buffer tank indicates that the blockages are formed by the proliferation and deposition of a large number of microorganisms. After selecting representative sampling points,the water samples of each sampling point were monitored on site,and the factors affecting microbial growth and reproduction,such as temperature,pH value,COD （chemical oxygen demand）,TN （total nitrogen）,dissolved oxygen and the number of bacteria in the water were analyzed. Based on the test results,the cause of periodic blockage of the filter was identified. References | Related Articles | Metrics

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Analysis and Suggestions on Application of High-strength Secondary Beam in Platform Structure YIN Xiaoming, LI Juan, ZHANG Zhaojun, SHI Lei, LU Jing 2023, 50 (11):  30-32.  Abstract ( 562 )   Save The weight control of topsides is more and more strict,and using high-strength secondary beams instead of low-strength secondary beams is a feasible measure to reduce weight,but the effect of the application is often not obvious. According to the structure check codes,the allowable bending stress of commonly used secondary beams is given,and the changes in allowable bending stress after replacing high-strength secondary beams are compared. Suggestions are also made for their application in platform structures. References | Related Articles | Metrics

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Application of X-ray Fluorescence Element Logging Technology in Oil and Gas Exploration and Development TAN Weixiong, KAN Liujie, LI Wenyuan, ZHANG Lei 2023, 50 (11):  33-36.  Abstract ( 516 )   Save The application of X-ray fluorescence element logging technology in lithology identification and stratigraphic division,sedimentary environment and facies discrimination,physical property parameter calculation and reservoir evaluation,and key “geological horizon” determination is analyzed. The application effect of this technology in oil and gas exploration and development is evaluated,and the development suggestions for the existing problems in the application of this technology are put forward. It is helpful for practitioners and scientific researchers in the logging industry to understand the trend of technology development and change,and further expand the application research scope of this technology. References | Related Articles | Metrics

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Practice of Standardized Design of Main Structure of Offshore Platform in Bohai Bay MAO Jianbin, XIN Xiaohui, DUAN Yanli, DENG Hexia, WEN Yu 2023, 50 (11):  37-40.  Abstract ( 499 )   Save With the improvement of the comprehensive ability of oilfield design,construction and installation,the forms and member specifications of main structures such as main legs,diagonal braces and frame beams of offshore platforms in Bohai Bay tend to be serialized and standardized. The conventional offshore platform structure is a forward design carried out after the determination of oil reservoir,process flow,general layout and weight control. If one of the links changes,it is necessary to recalculate,check and even redesign the structure,resulting in repeated work and even an increase in the construction period. The standardized design of the main structure of the platform is to design a series of offshore platform main structure drawing library suitable for different process flows and equipment layouts by studying typical process flows and overall area layout. It can be used together with serialized jackets suitable for different areas of the Bohai Sea,which can cover most of the Bohai Bay area and realize the reuse of the main structure design of offshore platform. References | Related Articles | Metrics

Applied Technology

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Application of Eddy Current Internal Inspection Technology in Offshore Oil Pipeline XIE Haofang 2023, 50 (11):  41-44.  Abstract ( 531 )   Save The application of eddy current internal inspection technology can effectively evaluate the distribution and depth of defects in offshore oilfield oil pipelines,and provide a data basis for oil pipeline management decisions,which is conducive to formulating targeted management measures and improving the management efficiency of offshore oilfield oil pipelines. Based on eddy current internal inspection data,the distribution and depth of defects in an offshore oil pipeline are systematically analyzed,the remaining strength and remaining life are evaluated,and conclusions and suggestions are provided. The results of field experiments indicate that the accuracy of eddy current internal inspection data is high,which has guiding significance for the integrity management of oil pipelines in offshore oilfields. References | Related Articles | Metrics

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Research on Application of Imidazoline Corrosion Inhibitors in Oil Well Corrosion Control LI Qian, HAN Xiangyong, WANG Junqiu, ZHANG Bing, WANG Xingwei, HE Pixiang 2023, 50 (11):  45-48.  Abstract ( 508 )   Save In the southern area of Dagang Oilfield,due to the high salinity and hydrogen sulfide content of the formation water,rod breakage and pipe leakage occur in the production process of oil wells due to corrosion,which seriously affects the normal production of oil wells. Through the analysis of corrosion factors in oil wells and the evaluation of corrosion inhibitors on site,it is found that the optimal corrosion inhibition concentration of imidazoline corrosion inhibitors is 30 mg/L to 160 mg/L,and the dosing cycle can be extended by 1 to 2 days. By optimizing dosing system and prolonging dosing cycle,corrosion control in oil wells is realized and the single-well pump inspection cycle is prolonged. References | Related Articles | Metrics

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Research on New Method of Electrical,Instrument and Communication System for Small Marginal Gas Field Development in Bohai Sea CHEN Jianling, WAN Yufei, JIN Qiu, LIANG Peng, GAO Yang 2023, 50 (11):  49-51.  Abstract ( 481 )   Save Marginal small gas fields have the characteristics of small reserves,high development difficulty and poor economic benefits. In order to adopt the non-submarine cable power supply scheme,the platform equipment selection optimization is carried out to reduce the power consumption and system scale to the greatest extent. At the same time,the possibility of new energy power supply methods,namely solar or wind power generation solution is explored. In the end,the overall platform design is simplified,the project investment is reduced,and a new idea is provided for the subsequent development of marginal small gas fields. References | Related Articles | Metrics

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Some Suggestions on Upgrading and Transformation of Natural Gas Compressor Related Processes LI Xindong 2023, 50 (11):  52-55.  Abstract ( 502 )   Save In order to solve the problem that the seawater flow in the heat exchanger is often blocked by shellfish marine organisms during the operation of the natural gas compressor on the offshore platform,resulting in the gradual decline of the heat exchange efficiency,through the analysis,it is proposed to upgrade and transform the natural gas compressor processes. The upgrading and transformation mainly includes：installing a filter at the seawater inlet of the heat exchanger,upgrading the heat exchanger head,installing an electrolytic copper aluminum electrode in the seawater main filter,installing an end flushing pipeline,and so on. This paper mainly analyzes and compares the advantages and disadvantages of installing a filter at the seawater inlet of the heat exchanger,the advantages and disadvantages of installing a main filter and a split filter,and the advantages and disadvantages of replacing the head with a straight-through or quick opening blind plate in the upgrading and transformation. A more suitable scheme is found out,and relatively reasonable suggestions are put forward to provide reference for the stable operation of natural gas compressor on offshore platform in the future. References | Related Articles | Metrics

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Research on Application of Django Framework in Construction Management of Offshore Platform Deck PANG Da, WEN Jiaming, WU Yanxin, DU Bin, MA Yao 2023, 50 (11):  56-58.  Abstract ( 479 )   Save With the deep transformation of marine engineering construction management towards intellectualization and digitalization,the ability to timely obtain and analyze key data information is increasingly urgent in construction management. According to the data characteristics of the panel construction process,this paper uses MySQL database technology to extract and analyze the specific information in the construction process,and uses the Django framework to design a construction data analysis platform with the characteristics of integrating multiple construction management system data,intelligent data processing,etc.,which efficiently integrates more than one million pieces of data generated during the construction,and provides data support for the construction situation control,construction strategy adjustment,etc. The scheme has been successfully applied in LNG construction projects,the effect is good,and it has a certain guiding significance. References | Related Articles | Metrics

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Research on Application of Intelligent Technology in Unconventional Oil and Gas Detection Experimental Records XIA Kaixuan, ZHAO Youlong, MIAO Xiangyang, HONG Xiaodi 2023, 50 (11):  59-62.  Abstract ( 493 )   Save The current situation and characteristics of unconventional oil and gas detection experimental records are described. The online form design technology can dynamically configure the experimental task template. The text recognition technology and data acquisition technology can obtain the original data of the experimental process in real time. The existing operational analysis model can be used to analyze the data. Through the recording process of experimental process data,the relevant digital and intelligent application technologies and application effects are described to provide the application basis for future laboratory electronic recording process. References | Related Articles | Metrics

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Reliability Analysis of ESD Circuit for Electrical Equipment on Offshore Oil Platform WANG Peng, LI Haitao, ZHENG Gaoyi, WANG Zhipeng 2023, 50 (11):  63-66.  Abstract ( 515 )   Save The composition and level of Emergency Shutdown Device （ESD） systems on offshore oil platforms are discussed. The composition and functional realization process of ESD circuits of different electrical equipment in multiple projects in an oilfield are described,and their key role on offshore oil platforms is pointed out. The reliability of several ESD circuits is comprehensively analyzed and compared,and suggestions are put forward to improve the unreliable circuits. This study has guiding significance for the design and selection of ESD circuits in the secondary circuits of electrical equipment. References | Related Articles | Metrics

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Innovative Application of Layered Water Injection String in Horizontal Water Injection Well in BZ Oilfield GUO Yinglei, ZOU Dehao, RUAN Xinfang, GU Jinlong, LU Yikuan, LI Jinze 2023, 50 (11):  67-70.  Abstract ( 504 )   Save Horizontal well has high productivity and good economic benefit. With the continuous development of offshore oilfields,the number of horizontal wells has increased. However,the horizontal wells have problems such as long horizontal sections,inability to be tested through conventional methods,high special testing cost,and low efficiency. Based on the current level of water injection wells in general,a set of layered water injection tools are submitted,and two radial and axis water injection channels are used to achieve water injection in heel or toe section. The inner diameter of the layered water injection string can meet the needs of later testing and measures. Taking well C in BZ Oilfield as an example,a layered water injection string is run into. The results of water absorption test and profile control test indicate that this string can achieve layered water injection in horizontal water injection wells,inhibit the sudden increase of water content in beneficiary wells,delay the natural decline of the oilfield,and thus improve the water flooding effect of the oilfield. It provides an important technical means for the efficient development of horizontal wells in offshore oilfields. References | Related Articles | Metrics

Science & Society

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Practical Research on Carrying out Science Popularization Education Activities in Primary and Secondary Schools Based on Collaborative Education of Family-School-Society LI Changhe, LIANG Yan 2023, 50 (11):  71-73.  Abstract ( 532 )   Save This paper analyzes the significance and challenges of carrying out science popularization education activities in primary and secondary schools based on the collaborative education of family-school-society,and proposes a “1+3+N” science popularization education practice system. With the education as the core,the collaboration of family,school and society is adhered,the development of science popularization education activities in primary and secondary schools is promoted from multiple dimensions such as content form,resource supply,teaching staff,and value-added assessment,to continuously improve the scientific literacy of primary and secondary school students. References | Related Articles | Metrics

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Practice and Exploration of Formative Evaluation Based on Information Technology —Taking Database System and Application Course as an Example HU Zhijie 2023, 50 (11):  74-77.  Abstract ( 485 )   Save In the context of information technology,the establishment of a process-based formative evaluation system to scientifically and reasonably evaluate teaching effectiveness is discussed. Based on information technology,a learning platform is designed,and students from Class 1 to 3,Grade 2021,majoring in “Computer Science and Technology”, Guangdong Technology College,were selected as the experimental group,and students from Class 4 to 6 were selected as the control group. Formative evaluation and summative evaluation were used to compare the learning effects of the two groups of students in “database systems and applications”,and data was recorded. The results show that the total score of the experimental group is significantly higher than that of the control group,the excellent rate is higher than that of the control group,and the failure rate is lower than that of the control group. From the analysis of student learning data records,information-based formative evaluation in teaching can help stimulate learning interest,promote self-study,improve innovative thinking and other abilities,and meet the overall demand for cultivating innovative talents in China. References | Related Articles | Metrics

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Research on Integrated AI Teaching Model of Chinese Civil Aviation Flight English WEI Chen, XING Da 2023, 50 (11):  78-81.  Abstract ( 534 )   Save With the arrival of artificial intelligence and the big data era,the education information system is upgrading from serving teachers to being able to undertake part of the teaching and management work for teachers,and has become an important tool to promote school development and improve teaching quality. The application of artificial intelligence and big data technology in flight English teaching can analyze students' knowledge weaknesses effectively,improve students' passing rate on English proficiency test,and provide assistance for the reform of English teaching in civil aviation flight colleges in terms of teaching content,teaching methods,and evaluation methods. Based on teaching needs,the design ideas and functional modules of the integrated platform for flight English AI teaching are analyzed. References | Related Articles | Metrics

Editor's Voice

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Strategies and Approaches for Enhancing International Influence of Chinese Sci-tech Journals—Taking Infrared and Laser Engineering as an Example XU Wenying, FU Ning, WU Di, LI Jin 2023, 50 (11):  82-84.  Abstract ( 581 )   Save There are a large number of Chinese sci-tech journals,but their internationalization level is not high,and their international influence is relatively low. How to enhance the international influence of Chinese sci-tech journals and promote the international dissemination of sci-tech achievements in China is a topic that is needed to explore and research. Taking Infrared and Laser Engineering as an example,the strategies and approaches for enhancing international influence of Chinese sci-tech journals are analyzed,and the achieved results are summarized. References | Related Articles | Metrics

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Exploration on Development Road of Agricultural Science and Technology Journals in New Era YANG Jing, LYU Tuo, SUN Shitao, WANG Mansheng 2023, 50 (11):  85-88.  Abstract ( 528 )   Save This paper analyzes the development status and problems of agricultural journals in China,such as low circulation of paper,business model to be innovated,media convergence development in the initial stage,the scarcity of high-quality manuscript sources,etc. In view of the above problems,specific development suggestions are put forward,such as setting up agricultural science and technology journal cluster,giving full play to the advantage of “Internet +”,developing integrated agricultural science and technology journal cluster platform,and taking multiple measures to expand high-quality manuscript sources,aiming to provide reference for the development of agricultural sci-tech journals in the transition period and promote the rural revitalization. References | Related Articles | Metrics

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How to Boost Development of Science and Technology Journals through Literature and Information Analysis and Research: Taking Journal of Marine Information Technology and Application as an Example WANG Shaopeng, QIN Xue, CUI Shanggong, WANG Suping, LI Hongjun 2023, 50 (11):  89-92.  Abstract ( 544 )   Save With the continuous improvement of China's scientific research level,higher requirements are put forward for the running level of scientific journals,and the traditional concept of running journals can hardly meet the needs of modern scientific research development. By using the method of literature and information science,the potential information behind the literature is deeply exploited,and its scientific guiding role for sci-tech journals is explored. Taking the Journal Marine Information Technology and Application as an example,the research hotspots,research frontiers,selection of outstanding authors and institutions are expounded,and the boosting role of literature and information science for the development of sci-tech journals is discussed,so as to provide reference for similar sci-tech journals. References | Related Articles | Metrics

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Reflections on Development of English Scientific and Technological Journals of Traditional Chinese Medicine YAO Xia, JIANG Dan, CHEN Changqing 2023, 50 (11):  93-96.  Abstract ( 508 )   Save Traditional Chinese medicine is a treasure of Chinese nation,it plays an important role in the health of the whole nation. English scientific and technological journals of traditional Chinese medicine carry the mission of promoting traditional Chinese medicine culture and scientific research achievements,as well as the mission of telling the world about traditional Chinese medicine. The current national policy attaches great importance to traditional Chinese medicine and its international dissemination. This is a great opportunity for the development of English scientific and technological journals of traditional Chinese medicine. Based on the current policies related to traditional Chinese medicine and publishing in China,as well as the current situation of English scientific and technological journals of traditional Chinese medicine,through in-depth consideration of the development of English scientific and technological journals of traditional Chinese medicine,it is believed that measures such as establishing a standardized international expression system for unique theories and models of traditional Chinese medicine,building an independent international publishing platform for scientific and technological journals of traditional Chinese medicine,and appropriately adding corresponding English journals according to the classification of disciplines or research directions of traditional Chinese medicine can better promote the development of English scientific and technological journals of traditional Chinese medicine. References | Related Articles | Metrics