This paper mainly elaborates on the analysis and summary of the distribution of employees with abnormal hearing test results in occupational health examinations based on the noise measurement results from regular occupational hazard detections conducted over the past three years at 16 units within a certain oilfield. Starting with the noise measurement results, field research was conducted on units with a large number of pump-type equipment, high equipment noise levels, and a significant number of pump rooms where noise exceeded 90dB(A). By combining detection data with field investigations, research conclusions were drawn and protective suggestions were proposed to improve the working conditions of noisy operations and to protect the health of workers.

Controlling the first type of risk sources and eliminating the second type of risk sources is the fundamental of risk prevention and control. This paper provides a referential method to help the basic units of oil and gas production in the application of new equipment and new equipment risk identification and assessment, and gives the corresponding risk identification and prevention and control measures. The core is to provide a simple and clear template for risk identification of the basic level. The method takes the equipment body, power source, processing medium, operation process and maintenance operation as the main line to guide the operators to identify the risks of equipment and facilities and operation process, clarify the identification steps and provide the direction of measures. It can also be used as reference for risk identification and assessment of existing equipment and facilities.

In recent years, major and large safety accidents have occurred frequently in refining and chemical enterprises, which have a large impact on the national economy and people's safety. In order to improve the emergency response capability of refining and chemical enterprises under abnormal circumstances and ensure the safety of employees, environment and society, refining and chemical enterprises must establish well-developed emergency system and emergency plan. According to the actual situation of refining and chemical enterprises, this paper summarizes the development, implementation and management of emergency system and emergency plan, especially the application of digital emergency management in refining and chemical enterprises, as well as the advantages and development trend of digital emergency management so as to realize modern management, improve the efficiency of emergency response to avoid safety accidents in refining and chemical enterprises and reduce environmental and property losses.

In chemical industry, especially in large-scale refining and chemical enterprises, due to the production demand, it is inevitable to carry out some local overhaul, maintenance, installation and cleaning and so forth. If the valve or switch is opened carelessly, it will cause the failure of energy isolation which will lead to flammable and explosive, toxic and harmful media, electrical energy, mechanical energy and other energy accidental release, thus causing safety accidents. The implementation of management measures such as energy isolation, locking and tagging will enable effective isolation of equipment under maintenance or operation, preventing accidents and eliminating personnel injuries from the root. This is beneficial exploration and practice for chemical enterprises to prevent the injury to maintenance workers during production process, to promote the visual management of production site and to realize the intrinsic safety of chemical maintenance.

In accordance with the "678" regulatory ideas (six dual ones, seven strict governance, and eight parties guarantee), a petrochemical enterprise implements "3+3" safety grid supervision, strengthens various work related to safety supervision for overhaul and revamp and clarifies relevant management processes and responsibilities. By setting the grid, appointing personnel and assigning responsibilities, the enterprise ensures that the management responsibility is assigned comprehensively and builds a management network of "risk to point, point to personnel, and risk avoidance of person". It further strengthens the safety supervision responsibilities of the territorial units, construction units, and team members, and forms a work pattern of "network in the field, grid in the network, setting personnel in the grid, and responsibility for everyone ". This ensures the safety of maintenance and revamp and achieves the goal of "safe, green, and timely recovery of all devices in the plant, and opening up the entire process".

Safety in production is the premise and foundation of all the work of enterprises. With the degree of danger and fluidity characteristics in oil drilling industry production, it has been difficult to avoid safety accidents, both in the traditional management period and now with the introduction of advanced safety management system. Therefore, it is a new topic for us to find out how to adapt the safety management of oil drilling industry to the requirements of the new situation and how to improve safety management. Sinopec East China Petroleum Engineering Company innovates safety management, actively tries to combine “HSE vision and goals” with “Quaternity” safety management. This effectively protects the interests of the enterprise and employees and maintains the stability of the production safety situation.

In recent years, with the rapid development of gas field production and construction, the contractor team has fully participated in various links such as production and operation, service assurance, etc. of the production unit. And the safety and environmental protection risks and safety management risks brought by it have also been involved in the enterprise management and production site. At the same time, with the continuous improvement of the national two laws, the requirements for safety and environmental protection have increased year by year. With the increasing difficulty in the supervision of the contractor team, how to institutionalize and standardize the management of contractors by gas production units has become the core and difficulty of safety management. Therefore, grass-roots units of gas production must continue to explore, practice, summarize and consolidate, and finally propose a "1+4+N" contractor safety management mode which effectively promotes the safe, efficient, and harmonious development of grass-roots units of gas production.

The oil and gas industry in the Middle East is not only crucial for the local economic development, but also has far-reaching implications for global energy supply. Degassing Stations, as vital oil and gas production facilities in the region, have a crucial impact on oil and gas production. To ensure the integrity of the equipment and the safety of on-site personnel of this region, this paper conducts an in-depth analysis of the emergency evacuation and fire prevention design for degassing stations in this region with the aim of assessing their fire prevention and emergency evacuation capabilities. The goal is to provide rationalization proposal for improving fire risk management.

This paper mainly introduces the operation status and problems of the tracing system in acrylic acid plant. It discusses and analyzes the feasibility of optimization revamp of low temperature heat utilization of the plant. Through optimization revamp of the on-site process flow of hot water system and condensate system, the problems of tracing fouling and blockage in the hot water system and water hammer in the condensate system of the device are solved. This can eliminate the on-site safety hazards and achieve energy conservation and emission reduction.

In view of the fact that the influence of pressure loss on the safety of chemical containment vessel under internal pressure environment cannot be ignored, this project intends to study the safety of chemical containment structures from the perspective of structural mechanics under the pressures of 4 and 6 years of the design reference cycle. ABAQUS numerical simulation technology is adopted to simulate the three-dimensional fine numerical simulation of large vessels, and the mechanical behavior of lining yield, prestressed steel yield and concrete crack propagation are simulated. After considering the prestress, the internal pressure load that the container can bear is reduced in the case of crack and liner failure. Under the critical pressure, the deformation of the vessel shows the external expansion of the vault and the internal expansion of the vault.

Gas leakage accidents are accompanied by a number of risk threats such as explosion and poisoning which brings about economic losses and casualty losses. In this paper, Ansys/Bow-Tie are adopted to establish diffusion model and analytical calculation model to analyze gas leakage qualitatively and quantitatively. The study indicates that in the qualitative variation, the gas diffusion rate increases exponentially in large modular in the leakage area and the diffusion rate is extremely fast. In the quantitative variation, the main risk of gas leakage comes from insufficient inspection and lack of timely overhaul with the highest probability of 0.039 and 0.046 respectively. It can be helpful for risk control to install toxic and hazardous gas instrumentation alarm monitoring group and strengthen the monitoring of large risk issues.

In order to reduce the incidence of accidents during the inspection and maintenance activities of petrochemical enterprises, strengthen safety risk control, master the effective use of Job Safety Analysis (JSA) method, and improve the enterprise safety management, this paper takes the technical renovation project of an internal floating roof storage tank in a large petroleum storage and transportation enterprise as an example to conduct a job safety analysis. It summarizes several common issues of job safety analysis tools and puts forward some corresponding suggestions and measures. This can provide certain reference for frontline safety management workers in the petrochemical industry.

Chemical industry is an important pillar of national production, but there are many hidden dangers during the production process because of its complex process and the diversity of raw materials. There is a high probability of casualties. Based on the 24 Model theory, this paper analyzes the causes of explosion accident occurred in Panjin Haoye Chemical Industry Co., Ltd. and puts forward some countermeasures to prevent and control the occurrence of chemical accidents and thus improving the safety performance of enterprises.

Work safety accidents in production and business operation entities are potential dangers. Once they occur, they will seriously affect the production and business operation activities of the entities, and even threaten the safety of life and property. In order to cope with this situation, it is necessary to formulate emergency response plan for work safety accidents. Emergency response plan for work safety accidents refers to the planning, deployment and implementation of the whole process of forecasting, early warning, prevention and emergency rescue of possible work safety accidents. According to the relevant requirements in Guidelines for enterprises to develop emergency response plan for work place accidents (GB/T29639-2020), this paper discusses how to reflect the system and connection relationship of the plan.

The formation of inorganic salt scale is one of the most serious problems facing the water injection and oil recovery stage in China's oilfields. The water quality of the oilfield is complex and the formation water contains high concentration of calcium, magnesium and other metal ions with strong scaling tendency. During the process from the wellbore to the ground transportation system, with the change of geological, physical and chemical factors, scaling is possible wherever there is oil, gas, water and mud flowing through. These scales may block the reservoir pore space and oil pipeline, reduce the efficiency of heat exchanger, affect the oil production seriously and increase the cost of extraction, transportation and treatment. Based on the latest domestic and international oilfield scale research data, this paper summarizes the properties, generating conditions, and influencing factors of typical oilfield scale types. It also summarizes the mainstream scale inhibition mechanisms and provides a summary of the scale prevention and removal methods that have been applied successfully at home and abroad.

Methyl tert-butyl ether (MTBE) is a kind of important chemical raw material which can be used as gasoline additive to increase the octane number of gasoline. Butene-1 is the copolymer monomer of polyethylene plant which can be used to produce fine products such as Methyl Ethyl Ketone, Pentanal, Isodecanol, and so forth. It has a wide range of functions and applications. With the continuous development of MTBE/Butene-1 process technology and the increasing capacity of the plant and combining with the technological characteristics of two different sets of MTBE/ butene-1 plants, this paper makes in-depth comparison and summary in terms of the economy of reaction catalyst, the advantages of comprehensive energy consumption and the cleanness of chemical production. It analyzes the different advantages and potential development space of MTBE/ butene-1 technology. This provides reference and direction for the design and operation of the same plants in the same industry.

In view of the harsh process conditions of ethylene spherical tank that needs to be pre-cooled to below -30℃ before receiving materials and the safety and environmental protection risks of the pre-cooling operation, on the basis of theoretical analysis and feasibility, it is proposed to change the pre-cooling method from "bottom tube inlet" to "top spraying droplets" in view of the harsh process conditions of ethylene spherical tank that need to be pre-cooled to below -30°C before receiving materials and putting them into use. It has been proved in practice that the pre-cooling method of spraying droplets on the top shortens the pre-cooling time of the spherical tank from 56 hours to 12 hours, reduces the emission of volatile organic compounds (VOCs) such as ethylene to the flare by about 30 tons, and achieves the purpose of carbon emission reduction and cleaner production. At the same time, it also eliminates the safety and environmental protection risks caused by the brittle leakage of spherical tank material caused by the large temperature difference between the top and bottom of the tank.

In the process of monitoring the pollutant discharge in the petrochemical production process, the accuracy of the monitoring results is low due to the large number of pollutants to be monitored. Therefore, the self-monitoring technology of pollutant discharge in the petrochemical production process is proposed. An intelligent data acquisition device including HT6501 central controller and ATT7022E metering chip is designed to calculate the difference of the status parameters of petrochemical production equipment in the adjacent time window to obtain the corresponding production status. Then the product output is calculated by combining the relationship between the output of petrochemical products and energy consumption. And the final emissions of different products are calculated by using the output of products and pollutants and the enterprise's capacity to treat pollutants. In the test results, the error between the monitoring results of the design method for the emission of air pollutants and water pollutants and the actual value is stable within 0.3mg/h.