Abstract: Geothermal well recharge water is a study to protect the environment and conserve resources, while recharge water containing sand will produce clogging, the experiment is conducted by simulating the separation efficiency with different precision and time, combining the three-stage treatment process of sand removal-coarse filtration-fine filtration based on a metal wire mesh cartridge, and applying the Reynolds turbulence model  of the algebraic stress model, the control equation of the flow of the airflow (k-ε) model and Reynolds stress model  are considered together. The conclusion drawn from the combined considerations is that the filter media used is a wire mesh filter media, and the wellhead sand can be completely removed by three-stage filtration. Read More

Abstract: Aquatic plants are an effective ecological restoration method for water purification. This article reviews the importance and role of plants in water purification, and explores their research progress in the purification mechanisms of pollutants such as nitrogen and phosphorus, their impact on water ecosystems, and their applications in water pollution prevention and control. The importance and future research directions of aquatic plants in water pollution control were analyzed based on their adaptability and biodiversity. Research has found that aquatic plants have significant purification effects and a wide range of applications in water purification. Future research can continue to delve into the purification mechanisms and ecological effects of aquatic plants, in order to promote the advancement of water technology. The importance of aquatic plants in water purification cannot be ignored and is expected to become an important means of future water environment restoration. Read More

Abstract: Landscape pattern refers to the spatial distribution and configuration of heterogeneous geographic units composed of different ecosystems, i.e., landscape elements, and is usually determined by the type, number, scale, shape and spatial distribution pattern of landscape elements. The formation of landscape patterns is mostly the result of complex interactions among physical, biological and socio-economic factors. Land use change (LUCC) is one of the key factors affecting the structure, function and dynamics of landscapes, and LUCC can not only objectively reflect the use of natural resources such as land and potential ecological risks by human activities, but also reveal the mechanisms of interaction between human activities and the ecological environment. Read More

Abstract: Shannan Oilfield Shachu 5 block is a typical elastic dissolved gas-driven lithological reservoir, and the underground oil and water distribution is very complicated due to the long-term water injection and drive, and after the implementation of a large number of water injection measures, it is necessary to analyse and evaluate the effect of water-driven development in this block. Through the screening index, the evaluation of water drive development effect is carried out by adopting the water content increase rate, water drive index, water storage rate and control as the main indexes. The evaluation results show that: the main contradiction faced by the reservoir development is that the rate of water content rise is too fast, and the water drive efficiency is low; the main problems faced by the reservoir to improve the water drive effect are the large differences in the distribution of residual oil between layers and wells with low multi-directional efficiency ratio, and the difficulty of water drive excavation in each layer is increased, and so on. Read More

Abstract: After long-term water flooding in low permeability reservoirs, dominant channels develop, and viscoelastic self-regulating agents can block large pores and inhibit bottom water coning. Based on the physical model experiment of sand filling pipe and the dynamic simulation system of pressure conduction online detection, this paper simulates the displacement characteristics of low permeability reservoir, and quantitatively studies the regulation and displacement performance of high permeability fracture model and low permeability matrix model of sand filling pipe with viscoelastic self-regulator under different permeability difference and different injection speed. Through pressure gradient, diversion rate and recovery factor, the formation energy conduction law under different injection and production systems is revealed. The results show that when the permeability difference is small, the blocking position of the regulating and flooding agent is in the front of the middle of the low permeability pipe and in the back of the middle of the high permeability pipe, and the opposite is true when the permeability difference is large, and the pressure gradient of the large permeability difference is greater than that of the small permeability difference. With the increase of flow rate, the pressure gradient increases gradually. The slug also increases, and the peak of the hyperosmotic tube gradually moves toward the inlet end, and the peak of the hypoosmotic tube gradually moves toward the outlet end. The formation energy conduction efficiency is positively correlated with the injection rate, that is, the higher the injection rate is, the faster the pressure rise at the production well is. Read More

Abstract: In this paper, LCA method is used to explore how a certain material or a specific drug packaging waste enters the environment after different garbage disposal methods, and what impact it has on the population and community after entering the environment. Pharmaceutical packaging materials are unavoidable in human life a class of materials, the international market for product packaging increasingly strict environmental requirements, China's drug manufacturers and pharmaceutical packaging industry put forward more severe requirements, in such a situation, the drug packaging to achieve effective recycling and pollution prevention is China's drug manufacturers must face the problem. The domestic research direction is mainly LCA, and the development and application of green packaging materials and new pharmaceutical packaging materials. The international research also includes carbon footprint estimation and LCM of pharmaceutical packaging, as well as innovation in recycling technology. Read More

Abstract: Urban green spaces have been shown to provide many of the environmental and social benefits associated with improving the quality of life of residents. However, urban population growth combined with densifying urban planning policies, such development may lead to an unequal distribution of green spaces in cities. As a result, access to green space is increasingly recognized as an environmental justice issue. Based on the Science Citation Index (SCI) core collection database, this paper focuses on the recent research progress of environmental justice research in urban parks and green spaces. This literature documents access to urban parks across socioeconomic and ethnic groups, the extensive benefits of parks for public health and sustainability. The increasing supply of urban green space in many areas of the United States, while emphasizing its diversity and inclusiveness in use, will help alleviate the injustice of urban green space. However, adding too many new urban green spaces and increasing residents' access to parks may lead to green gentrification. In Europe, research is already exploring models of public participation that can promote spatial justice in cities. In China, research on environmental justice in urban green spaces is just emerging and has the potential to be linked to future research on green gentrification, multi-objective use of urban infrastructure, public participation, big data analysis, and community programming. Read More

Abstract: Junggar Basin is one of the important petroliferous basins in China. Based on sedimentology, palaeogeography, geochemical characteristics, tectonic thermal evolution and other aspects, this study analyzes the characteristics and distribution law of source rocks, and predicts the total oil and gas resources of Jurassic in the basin. Middle and Lower Jurassic is the main hydrocarbon source rock strata of Jurassic, and a large set of thick coal and dark mudstone are developed on delta, shore-shallow lake and deep lake facies in the basin, among which Badaowan Formation is 200 ~ 800 m thick; Xishanyao Formation is 50m ~ 550m thick, which has great development prospect, but there are few exploration results at present. Through geochemical index analysis and thermal evolution simulation of source rocks, the middle and lower Jurassic source rocks are mostly medium-good source rocks, and the distribution and thermal evolution degree of mature source rocks in the south and east of the basin are higher than those in the north and west of the basin, so they have the conditions for mass production of hydrocarbons. Read More

Abstract: Open flow measurement in carbonate reservoirs directly affects the effectiveness of gas well production evaluation, assessment of reservoir potential, and guidance of safe production. In order to overcome the limitations of the traditional non-resistance flow calculation method, which relies on human adjustment and cannot meet the field demand in real time. In this study, based on the historical data and geological data of the blocks of the target gas reservoir, the production capacity test data of 8 wells and 13 wells were obtained. By using the K nearest neighbor method for data processing, a carbonate rock open flow prediction model based on the data from the capacity well test data was established, with a correlation coefficient of more than 0.92. The results of this study show that the predicted open flow rate is able to simplify the traditional complex mathematical calculation methods. This study provides support for capacity evaluation, assesses the potential of the gas reservoir, and helps the gas reservoir to develop appropriate safety production measures. Read More

Abstract: In the process of close coal seam mining, the lower coal seam is affected by the concentrated stress of the remaining coal pillars in the goaf area of the upper coal seam, and the surrounding rock of the roadway may appear in the surrounding rock of the roadway, such as large deformation, strong sheet gang, and roofing, and the targeted surrounding rock control countermeasures are the key to ensure the stability of the surrounding rock. In order to solve the above problems, taking the thick-topped coal mining roadway of the B1 coal seam of Kuangou mine as the engineering background, the comprehensive research methods such as numerical simulation, theoretical analysis and field test were used to analyze the environmental characteristics of high deviator stress, such as the maximum principal stress and the difference of principal stress at different roadway locations of the B1 coal seam under the influence of the legacy coal pillars, and the plastic failure law of the surrounding rock under the action. The results show that under the condition of the remaining coal pillars in the 15m goaf, the maximum principal stress concentration area is located in the range of 10.0m~15.0m, and the peak value is about 0.95 times of the original rock stress. Read More

Abstract: Carbon cycle plays a very important role in geochemical biological processes, there are a large number of lost carbon sinks in the process of calculating carbon sinks, and the carbon sinks after river damming are part of the lost carbon sinks, mainly soluble inorganic carbon (DIC). Select the Wujiang River Basin as the study area, with the help of carbon isotope labeling method to express the change law of carbon elements in the reservoir, and analyze the change law of the vertical profile of DIC. It is concluded that the change law of DIC is affected by dam construction, dissolution of carbonate rocks and aquatic organisms. Read More

Abstract: Water, a crucial resource that effectively drives human socio-economic development and ecological conservation, boasts its effectiveness, controllability, and renewability. It is an indispensable strategic resource for social progress. The United States has achieved remarkable results and accumulated valuable experience in integrated water resources management. These encompass integrated watershed planning and governance, efficient water conservancy infrastructure construction, measures to improve ecological environment, wastewater recycling and reuse, water rights management and trading systems, laws, regulations and policy support, water resources monitoring and assessment, and international cooperation and exchanges. These experiences serve as invaluable references for developing countries such as China in enhancing global water management and attaining sustainable development goals. Integrated water resources management gains prominence globally, and the United States has accumulated a wealth of experience and lessons in this area. This article delves into the strategies and accomplishments of integrated water resources management in the U.S., providing China with pertinent inspirations and recommendations. Read More

Abstract: Driven by the global wave of low-carbon and environmental consciousness, the new energy vehicle industry is poised for unprecedented development opportunities. As environmental challenges become increasingly severe, governments worldwide have implemented a series of policies to encourage the research and promotion of new energy vehicles. These vehicles not only play a crucial role in alleviating environmental pressures but also foster technological innovation and the transformation of economic structures. This paper, from the perspective of low-carbon and environmental protection, examines the current development status and technological pathways of new energy vehicles, explores the impact of policy support and industry chain construction on their advancement, and provides a forecast of the market outlook. Through a thorough analysis, a better understanding of the role and significance of new energy vehicles in low-carbon environmental protection can be gained, offering scientific foundations for future policy-making and industrial development. Read More

Abstract: As an important source of carbon emissions in China, promoting the low-carbon development of the oil and gas industry is the only way to achieve the "dual-carbon" goal, and is also an important goal in the implementation of the "four revolutions and one co-operation" energy strategy. Therefore, this paper will explore the optimal path for low-carbon development of the oil and gas industry from the perspective of the four revolutions, one cooperation and ethical environment, with a view to accelerating the transformation and upgrading of the oil and gas industry and achieving high-quality development. Read More

Abstract: In the context of the current increasingly poor global environment and the rising awareness of environmental protection, green food packaging, as an important part of reducing environmental pollution and promoting sustainable development, has attracted widespread attention. Through the SWOT analysis method, this paper analyzes the current development status and trends of the green food packaging industry, and discusses its role in protecting the environment and saving resource consumption. Special attention is paid to the application and development of biodegradable materials, recyclable materials and recycling technologies in green food packaging. In addition, this paper evaluates the impact of policies and regulations on the green food packaging market, and puts forward suggestions and strategies to promote the sustainable development of the industry. In summary, green food packaging is not only an important means to achieve the goal of sustainable development, but also provides far-reaching insights into the future direction of the food packaging industry. Read More

Abstract: This paper presents an in-depth analysis of a liquid hydrogen (UN1966) tanker accident that occurred on October 23, 2017, in Niagara Falls, NY, USA. Utilizing Quantitative Risk Assessment (QRA) methodologies, specifically the ALOHA (Areal Locations of Hazardous Atmospheres) modeling tool, the study evaluates the toxic and flammable threat zones created by the hydrogen vapor cloud resulting from the tanker collision. The incident's emergency response and its effectiveness in mitigating potential disasters were examined. Key lessons and preventive strategies were identified, emphasizing the importance of robust risk assessment, continuous monitoring, public awareness, and effective emergency response planning. The findings underscore the critical role of advanced QRA techniques in enhancing industrial safety and managing hazardous chemical incidents. Read More

Abstract: This paper discusses the challenges and solutions of carbonate reservoir permeability prediction. It is difficult to predict the permeability of carbonate reservoir because of its complex pore structure and heterogeneity. Although NMR logging is useful for characterizing pore structure, its high cost limits its wide application. Therefore, in this paper, machine learning technology and petrophysical logging data are used to compare the permeability prediction models. By constructing and testing permeability prediction models based on artificial neural network (ANN), decision tree (DT) and support vector machine (SVM), the advantages and limitations of various methods are analyzed, which provides new tools and methods for oil and gas exploration and development. Read More

Abstract: China’s fast industrial expansion has resulted in substantial environmental contamination, limiting the economy's long-term growth potential. In this setting, the low-carbon economy has emerged as an essential development strategy followed by all countries. The electric vehicle sector, which is a key pillar of the low-carbon economy, is quickly expanding. However, the linked battery recycling business has a lot of space for development. This study looks into the recycling benefits and environmental consequences of NEV batteries. The research methodologies used include literature review, theoretical analysis, and case studies of prominent firms. The findings emphasize the economic, environmental, and social benefits of battery recycling, including considerable reductions in carbon emissions and resource consumption. The conclusions highlight the importance of battery recycling to promote sustainable development and achieve low carbon goals. Read More

Abstract: New quality productivity is the fundamental driving force to achieve high-quality development. The organic combination of new quality productivity and land engineering is an important way to promote social development and ecological governance. The rational use of land engineering can realize the rational use and sustainable development of land resources, but the means of land engineering are relatively backward and cannot give full play to its role. It is necessary to use the new quality productivity to promote the development of land engineering, accelerate the construction of a new development pattern, and realize the efficient use of land resources in the aspects of technological innovation, optimizing resource allocation, promoting industrial upgrading, promoting sustainable development, policy support and personnel training. Read More