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25 February 2025, Volume 52 Issue 02 Previous Issue    Next Issue

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Management & Innovation

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Research on application of category management in procurement of offshore oil engineering projects LI Yao 2025, 52 (02):  1-3.  Abstract ( 6 )   Save Category management is a series of procurement management activities based on category standardization and clear category classification,guided by category procurement strategies. The procurement of offshore oil engineering projects is characterized by complexity,high risk,large investment and long cycle. Risks can be effectively reduced through category management,clarifying the procurement interface and achieving procurement value. The article takes the application of category management in offshore oil engineering enterprises as the starting point,analyzes the procurement value created by the application of category management,and discusses the methods and models of category management. References | Related Articles | Metrics

Basic Research

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Feasibility analysis on developing marginal oil fields with medium water depth in South China Sea by jack-up production and storage platform SHI Hemu, FAN Dunqiu, WEI Xiaoqiang, ZHANG Lin 2025, 52 (02):  4-8.  Abstract ( 7 )   Save In order to accelerate the economic development of marginal oil fields with medium water depth of about 100 meters in the east of the South China Sea,the whole sea oil field development scheme of “integrated subsea template + jack-up production and storage platform + DP shuttle tanker” is proposed. The whole development equipment can be reused,thus reducing the cost of marginal oil field development. Based on the preliminary analysis of the foundation stability and structural strength of the jack-up production and storage platform,the key equipment in the development scheme,under the environmental conditions of the target sea area,the calculation results meet the requirements of the standard,showing that the jack-up production and storage platform can be adapted to the development of marginal oil fields with the water depth of 100 meters in the South China Sea. References | Related Articles | Metrics

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Research on corrosion treatment scheme for FPSO ballast tank in a certain oilfield ZHANG Cuihuan, WANG Chunrui 2025, 52 (02):  9-12.  Abstract ( 7 )   Save The ballast tank is in a state of alternating wet and dry conditions between seawater ballast and empty load for a long time,with high temperature and humidity,high salt content,and poor ventilation,which makes it prone to corrosion. Once the FPSO ballast tank leaks,it will cause serious economic losses and marine environmental pollution. To avoid this situation,this article provides a corrosion treatment scheme for the severe thinning of the wall panels,coating damage,anode failure and other corrosion problems of the ballast tank. It has reference significance for the corrosion treatment work of other FPSO ballast tanks. References | Related Articles | Metrics

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Types and mechanisms of Shahejie formation reservoir damage in Bohai Oilfield WANG Xinliang, CHEN Xu, REN Qiang, YANG Kai, WANG Tao, QI Shuai 2025, 52 (02):  13-17+22.  Abstract ( 6 )   Save From 2016 to 2022,the recovery rate of oil well productivity in Bohai A Oilfield continued to decline after the workover operation. Since 2018,due to high temperature and corrosion issues,scaling has occurred in the central pipes of multiple wells,resulting in extended downtime for maintenance,reduced annual production per well,and increased operating costs. To solve the problems of low capacity recovery rate and well pipe scaling,through the analysis of reservoir properties,subsurface fluid properties,and rock surface physicochemical characteristics,the article finds that the wells with low productivity recovery rate are mainly concentrated in the Shahejie formation reservoir which has low-to-moderate permeability and high wax content. The reason is that the inherent potential damage factors of the formation are induced by various external conditions,such as water lock damage and inorganic scale deposition accompanied by the whole development and production process of the oilfield,as well as wax deposition in the low-to-moderate water cut stage. The combined action of the three factors ultimately leads to a significant reduction in the absolute or relative permeability of the oil reservoir and a decline in the oil well output. References | Related Articles | Metrics

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Research on nonlinear resistance of eutectic gallium indium alloy liquid metal based on generalized additive model ZHU Xing, HU Tianxuan, TIAN Yali, LI Huifei, LU Zhiyi, ZHOU Yan 2025, 52 (02):  18-22.  Abstract ( 7 )   Save The influence of electrochemical conditions on the resistance of eutectic gallium indium alloy （EGaIn） in sodium hydroxide solution was studied by constructing an electrochemical reaction device. The experimental results show that the EGaIn resistance changes nonlinearly under multivariable influence （including EGaIn volume,electrode voltage,NaOH solution concentration and electrode diameter）. Generalized additive model （GAM） was used to systematically analyze the multivariate interactions and reveal the nonlinear effects of various factors on the resistance. Compared with the traditional linear regression method,GAM can effectively handle the interaction effects between multiple variables. The results are of significant importance for enhancing the efficiency and safety of electrochemical sensors in various fields,such as environmental monitoring,energy storage,industrial process control,and smart wearable devices. References | Related Articles | Metrics

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Genesis mechanism and characterization of normal faults in complex structural area of Tanlu fault zone east branch—taking P oilfield in Bohai Sea as an example MENG Yuntao, HAN Jianbin, WANG Libing, LIU Jianhua, YANG Qing 2025, 52 (02):  23-25+29.  Abstract ( 6 )   Save The P oilfield structure is located in the northeastern end of the Tanlu fault zone’s eastern branch and the middle section of the Bohai South uplift zone. The structure as a whole has a nearly north-south trend and develops a series of “flower-like” normal faults in the recent strata from north to south. In the plane,it presents a “ridge-trench” alternating structural feature. Through research on the fault properties,regional tectonic evolution,and structural stress action mechanism,this paper believes that the “flower-like” normal faults in the area are not the accompanying faults of regional strike-slip faults,but are formed by the plastic deformation of the basement mudstone under the action of regional thermal subsidence differences. Based on the genesis of “flower-like” normal faults,targeted data processing and fault system identification technologies were proposed：multi-information-driven gas cloud area imaging enhancement and frequency domain multi-scale fault detection technology. Through fine fault description,the paper guides the detailed interpretation of the 16 block structure and the optimal deployment of wells,providing guidance for the optimization of well positions and the efficient development of the oilfield. References | Related Articles | Metrics

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Study on speed-sensitive seepage mechanism of different well types in unconsolidated sandstone reservoirs in Bohai Sea LI Jingling, YU Dengfei, AN Yuhua, ZHENG Jinding, PANG Weihao 2025, 52 (02):  26-29.  Abstract ( 8 )   Save Directional wells and horizontal wells in Bohai M Oilfield showed two completely opposite phenomena：a decrease in liquid production and an increase in liquid production after amplifying the production pressure difference. Research methods such as X-ray diffraction and scanning electron microscopy indicate that the reservoir is loosely cemented,the content of clay minerals is high,the pore throat distribution is slightly rough,and the sorting is better. Laboratory core velocity-sensitivity experiments show that the migration of particles is obvious,and the permeability increases with the increase of flow velocity,which is inconsistent with the phenomenon of decrease in liquid production of directional wells in actual production. In response to this problem,a seepage model of “long-distance migration and blockage near wells” is proposed,and the concept of velocity-sensitive clogging coefficient is introduced,which correlates the change of seepage velocity with permeability. By means of steady seepage theory,the velocity,permeability and formation pressure distribution of directional wells and horizontal wells are deduced. The reasons for the different production performances of the two well types are explained from the perspective of seepage mechanism,which provides an important support for the efficient development of Bohai M Oilfield. References | Related Articles | Metrics

Applied Technology

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Design and application of a new integrated protection device for offshore platform power distribution system KONG Linglei 2025, 52 (02):  30-33.  Abstract ( 5 )   Save In the medium voltage power distribution system of an offshore platform,the cargo oil pump often has unexpected trip,which affects the stability of crude oil export operation and causes security risks. After analyzing the fault,it was decided to use a new integrated protection device to replace the faulty old device. The hardware performance of the new integrated protection device was designed,including port requirements,protection function and communication compatibility. The protection parameters,logic parameters,I/O parameters and communication parameters of the integrated protection device were reconfigured by the host computer. The PLC communication program of the central control system and the comprehensive insurance communication was redesigned and programmed to solve the problem of communication compatibility. Combined with the port function of the new integrated protection device,the relay control circuit of the motor was redesigned and installed,and the replacement of the integrated protection device was completed. The implementation of this scheme provides experience and reference for the replacement of the old equipment in the oilfield power distribution system. References | Related Articles | Metrics

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Construction and efficiency analysis of permeable municipal stormwater pipeline system LIU Jie, LI Chaoxiang, CAO Yuanhao, HU Yi, ZHANG Kai, WANG Hongjie 2025, 52 (02):  34-37.  Abstract ( 8 )   Save The characteristics and advantages of the permeable municipal stormwater pipeline system are described,and the factors influencing the construction of the permeable municipal stormwater pipeline are analyzed. The method of calculation or experimental simulation is proposed to obtain the optimal opening rate and seepage quantity of the pipeline. The operation efficiency of the system is discussed in order to provide reference for strengthening the function of “seepage” of road and changing the structure of traditional municipal stormwater pipelines in the future construction of sponge city. References | Related Articles | Metrics

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Analysis and verification of factors affecting pressure drop in horizontal well sections of Bohai Q Oilfield GAO Zhiliang, XING Chuanheng, LI Quan, ZHOU Ri, OUYANG Yuwei, ZHOU Hongyan 2025, 52 (02):  38-40.  Abstract ( 6 )   Save Through theoretical formula derivation and single factor influence calculation,the influencing factors of pressure drop in the horizontal well section caused by frictional resistance are identified. Based on the actual reservoir characteristic parameters,an analysis chart is established for the variation of pressure drop in horizontal well sections with different liquid production scales and water cut stages in Bohai Q Oilfield. The ratio of the pressure drop in the horizontal section to the production pressure difference of this well is defined as the C value. Combined with the the production pressure difference,the potential of single well measures in Bohai Q Oilfield is quantitatively predicted. It is proposed that 13 wells implement large pumping for liquid extraction. After the operation,the oil production increases by 403 t/d,achieving good application results. References | Related Articles | Metrics

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Case study on energy saving technologies and applications in offshore oil and gas fields HUANG Xu, LIU Shaoshuai 2025, 52 (02):  41-44.  Abstract ( 6 )   Save With the growth of global energy demand,offshore oil and gas fields are facing increasingly prominent energy conservation and emission reduction issues. This study explores the offshore high-temperature flue gas waste heat power generation technology and CCUS/CCS technologies for oil and gas fields. By analyzing the principles,advantages,and successful cases,the potential of these technologies in improving energy efficiency and reducing greenhouse gas emissions is revealed,demonstrating their significant effectiveness in the green transformation of offshore oil and gas fields. References | Related Articles | Metrics

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Safety and stability analysis and troubleshooting of UPS on offshore oil platforms SHI Yuquan, ZHENG Man, TENG Xiang 2025, 52 (02):  45-47+51.  Abstract ( 6 )   Save Using the concept of “quality research and development”,this paper analyzes the factors affecting the safety and stability of uninterruptable power supply （UPS） systems on offshore oil platforms. After identifying the six end factors,the main and non-main factors are determined one by one through investigation and verification,sampling analysis,data statistics,and other methods. Finally,it is confirmed that the main reason for the low safety and stability of UPS systems is the uneven cooling during equipment operation,which leads to an increase in internal temperature. On site solutions were developed based on the application of the 5W1H principle. References | Related Articles | Metrics

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Research and application of surface smoothness treatment technology for weight coating layer of directional drilling pipelines SU Cheng, JIA Zhen, WANG Hongzhou, QIU Donglin, ZHANG Guoqiu, ZHANG Xiang 2025, 52 (02):  48-51.  Abstract ( 7 )   Save In order to improve the surface smoothness of the weight coating layer of directional drilling pipelines,a series of innovative technologies were developed,including slurry spraying,improvements in leveling tools,pneumatic platen secondary leveling,and a two-step film coating and correction process. These technologies significantly enhance the surface smoothness of the pipelines,reduce frictional resistance during construction,improve construction efficiency and quality,and extend the service life of the pipelines. The effectiveness and practicality of these technologies have been verified through successful applications in multiple projects. References | Related Articles | Metrics

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Applied research on new high-efficiency sedimentation pipe for water treatment WANG Lingfa, LAN Xi, CHEN Fanzhen, WANG Lingquan 2025, 52 (02):  52-55+60.  Abstract ( 6 )   Save In order to improve the operational efficiency of the horizontal sedimentation tank,the application research on a new type of high-efficiency sedimentation pipe was conducted based on the shallow sedimentation theory using the design concept of water channel and sludge channel. The results show that it can improve the sedimentation effect and can be applied to improve the performance of horizontal sedimentation tanks in water treatment and sewage treatment and other fields,with strong practical application value. References | Related Articles | Metrics

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Application of synthetic-based drilling fluid BIODRILL S in extended reach wells of Bohai Oilfield YU Qingchuan, HE Bin, SHEN Shaoguang, LI Liang, TONG Zhiming 2025, 52 (02):  56-60.  Abstract ( 7 )   Save With the deepening of exploration and development of Bohai Oilfield,extended reach wells have become the focus of current development. But the oilfield has complex stratigraphic conditions,and many challenges are faced in the development of extended reach wells,such as frequent drilling accidents,difficulty in improving efficiency and reservoir leakage. In order to solve this problem,the synthetic-based drilling fluid BIODRILL S system is introduced,which has low viscosity and high cutting,high demulsification voltage,low filter loss,stable rheology,good coating inhibition and plugging ability,and strong resistance to rock cuttings and seawater pollution ability. In the field application,the performance of this system remains relatively stable during the drilling of extended reach well section,and the returned cuttings are complete,showing good inhibition and rock carrying capacity. Meanwhile,the friction coefficients in the casing and in the open hole are only 0.15 and 0.20,respectively,which have good lubricity and can effectively solve the problems of difficult sand carrying,high friction resistance and low drilling time in extended reach well. References | Related Articles | Metrics

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Improvement of mechanical specific energy theory based on effective WOB and torque and its application in M Oilfield FANG Ruxuan, WU Yongchuan, CHEN Zhizhong, LIU Junbo 2025, 52 (02):  61-65+70.  Abstract ( 7 )   Save Since R. Teale first proposed the original mechanical specific energy model,many improved models have been studied and applied. However,most models do not clarify the physical significance of key parameters such as weight on bit （WOB） and torque. This paper introduces the effective WOB and effective torque,and proposes a calculation method for effective WOB and effective torque,which significantly improves the analysis accuracy. An example is used to compare and verify the results. References | Related Articles | Metrics

Science & Society

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Some considerations on selection of evaluation indicators for transformation effect of science and technology achievements in China SHI Xiaohua, ZHAO Wei, YANG Shuai 2025, 52 (02):  66-70.  Abstract ( 8 )   Save The transformation performance of science and technology achievements reflects the value of scientific and technological innovation activities. Scientific selection and understanding of the performance tools for the transformation of science and technology achievements are conducive to transforming government service functions and improving the operation system of science and technology achievements. Based on the existing statistical basis in China and following the principle of reliable data availability and convenient comparison,this paper sorts out the performance measurement system for the transformation of domestic scientific and technological achievements and puts forward suggestions on the selection of comprehensive evaluation indicators for transformation performance of science and technology achievements in China,in an effort to achieve the purpose of effective measurement with the least number of key indicators. References | Related Articles | Metrics

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Exploration of spreading path of Chinese scientist spirit in higher vocational colleges under background of media convergence CHU Xiumei 2025, 52 (02):  71-73.  Abstract ( 5 )   Save Chinese scientist spirit plays a crucial ideological leading role in vocational education talent training in China today. The promotion of scientist spirit in higher vocational colleges is in line with the training basis of practicing the foster virtue through education,and is helpful for students to establish correct scientific values and belief support. This paper analyzes the difficulties and challenges faced by the higher vocational colleges in spreading the Chinese scientist spirit,and explores the practical paths of spreading Chinese scientist spirit under the background of media convergence,in order to better enhance the scientific and cultural literacy of teachers and students,and to promote the integration of the scientist spirit into the ideological and political education. References | Related Articles | Metrics

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Integration of artificial intelligence and digital media: applications, challenges and prospects Nurba Numu Maiti Reyimu, SHI Jinyu 2025, 52 (02):  74-76.  Abstract ( 6 )   Save With the rapid development of information technology and the popularization of digital media,artificial intelligence technology has gradually become one of the key driving forces in the field of digital media. This article comprehensively analyzes the application and development of artificial intelligence technology in the field of digital media. Through algorithm analysis,the application of deep learning,machine learning and other algorithms in the field of digital media is explored. The ethical and legal issues brought by artificial intelligence technology to the digital media industry,as well as technical strategies to combat false information are discussed. The future of the integration of artificial intelligence technology and digital media is prospected,emphasizing the role of AI technology in promoting content innovation and enhancing user experience. References | Related Articles | Metrics

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Exploration into ethical governance of cutting-edge technologies in field of life sciences ZHANG Xiaohui, QIAN Bingyi, YIN Qian 2025, 52 (02):  77-80.  Abstract ( 8 )   Save With the rapid development of life science technology,especially the development and application of technologies such as gene editing,cross species chimerism,and bioinformatics,it has aroused widespread controversy over ethical issues. This article provides an overview of the cutting-edge ethical issues in the field of life sciences,analyzes the governance policies and measures for ethical issues in this field in China,and explores how to further improve the construction of the ethical governance system in the field of life sciences at the provincial level,aiming to provide theoretical support and practical guidance for ethical governance in the field of life sciences. References | Related Articles | Metrics

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Visual analysis of research on environmental accounting disclosure under background of new quality productivity CHEN Lin 2025, 52 (02):  81-85.  Abstract ( 5 )   Save Under the background of the development of new quality productivity,the research on environmental accounting disclosure will usher in significant development opportunities. With the help of CiteSpace software,622 research papers on environmental accounting disclosure published from 1997 to 2024 in China Knowledge Network Database are analyzed visually for the number of publications,the number of high-productivity authors,the research hotspots and the research trends. The research outlook is made from three perspectives：seizing the opportunity of the flourishing development of new quality productivity,focusing on cross-disciplinary empirical research,and discussing the issue of environmental accounting disclosure in the context of “dual-carbon”. References | Related Articles | Metrics

Editor's Voice

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Measures to strengthen awareness of scientific integrity and responsibility in academic journals LI Chunyan, TANG Hao, ZHAO Fei 2025, 52 (02):  86-89.  Abstract ( 5 )   Save Academic journals play an important role in construction of scientific research integrity. Only by strengthening the awareness of preventing scientific research misconduct among practitioners,the academic misconduct can be effectively prevented,and the integrity of scientific research can be maintained. The manifestations of lack of responsibility awareness in academic journals are summarized and the reasons are analyzed. Measures to strengthen the awareness of scientific integrity and responsibility in academic journals are put forward in order to purify the academic atmosphere and restore a clear environment for the academic community through a series of institutional constraints. References | Related Articles | Metrics

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Strategies for managing a surge in submissions to English science and technology journals: case study of Food Bioscience JIN Wenyuan, ZHOU Yue 2025, 52 (02):  90-93.  Abstract ( 5 )   Save The rapid increase in submission volume coupled with insufficient editorial staff represents an imminent practical challenge for domestic journals in the aftermath of their rapid development. This paper approaches the issue from three dimensions：academic editors,authors,and journal editors. Possible solutions include：improving the rejection rate in the technical check to manage the workload of academic editors,providing assistance to academic editors in manuscript handling process,promptly addressing format issues that affect peer review,careful handling of rejected manuscripts,and prioritizing the needs of authors. These practices can enhance the submission experience for authors. Dynamic work allocation and emphasizing alignment between individual aspirations and job requirements can improve work efficiency of journal editors. Employing these solutions can yield a dual enhancement in the quality of manuscript resources and the efficiency of the review process,even when editorial staff is insufficient. References | Related Articles | Metrics

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Research and strategic recommendations on current situation of science popularization in Guangxi’s science and technology journals LI Lin, HUANG Wanchan, ZHU Shilin, CHEN Feiyan 2025, 52 (02):  94-99.  Abstract ( 6 )   Save Based on the findings of the questionnaire survey,the practical experiences and challenges faced by Guangxi science and technology journals in science popularization and promotion are analyzed. The necessity and potential pathways for breaking free from existing limitations within these publications are discussed. Suggestions on effectively promoting their development in Guangxi during an era of media integration are put forward. The development of Guangxi science and technology journals in science popularization is constrained by factors such as limited societal impact,insufficient capital investment,and a narrow target audience. Only through effective utilization of integrated media technology,the establishment of industry science popularization organizations,and a focus on catering to the needs of young individuals in science communication,the limitations can be effectively broken free from. Guangxi science and technology journals can make efforts to strengthen the construction of science popularization capabilities through the popularization of science and technology resources,branding of science popularization activities,socialization of science popularization forces,media dissemination of science popularization,and professionalization of science popularization talents. References | Related Articles | Metrics

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Research on integrated development and influence enhancement of academic journals ZHANG Yu, SU Yu, DAI Haoze 2025, 52 (02):  100-102.  Abstract ( 7 )   Save Starting from theoretical construction and practical strategies,this article explores the development path of academic journals in the context of media convergence and their role in promoting academic influence. Through in-depth analysis of the current situation of media integration in academic journals in China,targeted strategies and suggestions for improving academic quality,expanding communication channels and enhancing reader stickness are proposed,emphasizing the importance of continuous innovation and improvement in the development of media integration in academic journals. References | Related Articles | Metrics

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Status and function of sci-tech periodicals in national sci-tech innovation system XU Yanfang, CHEN Xi, WANG Xiaoyan 2025, 52 (02):  103-105+111.  Abstract ( 7 )   Save Sci-tech journals play an important role in the national science and technology innovation system. Sci-tech journals are the main media for disseminating scientific and technological achievements,and an important platform for researchers to obtain the latest scientific and technological achievements and exchange academic views. At the same time,sci-tech journals are also one of the important symbols to evaluate the level of science and technology of a country. This paper analyzes the status and function of sci-tech periodicals as the main media for disseminating scientific and technological achievements,as well as their role in the national sci-tech innovation system,aiming to provide theoretical support and policy suggestions for the development of sci-tech periodicals in China,and to enhance China’s scientific and technological innovation capabilities. References | Related Articles | Metrics

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Research on copyright issues and protection strategies of open access journals in China CHEN Xi, XU Yanfang 2025, 52 (02):  106-111.  Abstract ( 7 )   Save By sorting out the data sharing mode of open access （OA） journals in China,the copyright protection mode was explored to provide reference for the construction of OA publishing mode with Chinese characteristics. 335 Chinese OA journals were selected from the DOAJ database,and the data sharing mode was analyzed by literature research,data statistical analysis and other methods,so as to extract copyright protection strategies that meet the development needs of Chinese OA journals. At present,the OA journals in China mainly adopt the Creative Commons Attribution license （CC-BY）,and the mode of co-publishing by the organizer,such as the editorial office,the publishing house and the publisher leads to the disputes and problems concerning the distribution of benefits and the ownership of rights among the author,the domestic organizer and the publisher. Chinese OA journals can strengthen and improve copyright protection from the aspects of clarifying the subject of the agreement,improving the division of the rights and interests of all parties,introducing supervision,open access data warehousing,and localization construction of publishing platforms. References | Related Articles | Metrics