As an important part of enterprise safety management, safety training determines whether the enterprise can achieve high-quality and efficient sustainable development to a large extent. However, due to the requirements of the COVID-19 epidemic prevention and control, many places have restricted offline gathering activities, which has created great difficulty for the safety training work of enterprises, and also brought some challenges to the safety management work of enterprises. How to carry out effective safety training during the epidemic has become an urgent problem to be solved. Taking the safety training of Jidong Oilfield Downhole Operation Company as an example, this paper analyzes the current status of safety training, problems and countermeasures. It also expounds the opinions and views on the effective implementation of staff safety training during the epidemic. 

This paper introduces the related requirements for the construction of“No waste oil depot”in the oil products sales enterprises and expounds the definition of“No waste oil depot”. It analyzes on the present situation and existing problems of hazardous waste management in the oil depots. From the perspective of meeting the legal and regulatory requirements for environmental protection, the paper proposed the management objective of “no waste oil depot” and related suggestions and opinions on construction.

Emergency plan drill is known as important work of enterprise safety management. In this study, according to the actual situation of the emergency plan drill of enterprises, the problems in the emergency plan drill were pointed out, and five countermeasures were  proposed to strengthen the emergency plan drill. The first is to improve the early warning mechanism and enhance the awareness of crisis; the second is to improve the emergency linkage mechanism and realize the sharing of resources; the third is to improve the command system and achieve the accurate command; the fourth is to improve the management system of emergency materials and provide sufficient emergency materials; the fifth is to improve the drill evaluation system of the emergency plan and revise the emergency plan timely and so forth. These countermeasures are made to improve the level of emergency drill and achieve the early discovery and disposal of possible emergencies as soon as possible so as to avoid their occurrence.

 Contractors have always been an important part of the safety issues affecting the company due to the varying levels of their own management and the team quality. In the process of promoting compliance operation, one company has gradually established a complete contractor management system. Based on the contractor management system of one company, special audit and inspection was carried out for the company’s 7 subsidiaries. The special audit focused on the review of the status quo of contractor management and the implementation of contractor supervision responsibility of each business department of the company so as to find the problems in the supervision of contractors. Through continuous improvement, the company has further standardized and strengthened the contractor management of the company and its subsidiaries and enhanced the risk management and control level of the company’s contractors. 

To enhance the on-site safety supervision and management and ensure the project to be safe, smooth and under control, China Petroleum Engineering & Construction Corporation has realized integrated safety management with focus on accurate on-site management. By utilizing on-site safety grid management, the territorial responsibility is made clear and the responsibility implementation is strengthened. By utilization of on-site safety control platform, the on-site safety supervision online control is realized and quantitative safety performance assessment is performed. By management traceability of safety hazard issues, the root cause of hazards is found, so the unsafe behavior of people and unsafe state of surroundings are eliminated from the source. Through comprehensive application of the above safety supervision and management practice, the overall safety management of Guangdong petrochemical project is stable and under control. 

The purpose of this study is to design an information management system which can be used for oil and gas pipeline path planning, oil and gas production scheduling, oil and gas data statistical analysis and other functions. In this study, an oil and gas storage and transportation production management information system based on the Internet of Things and GIS technology is proposed. Through the integration of Internet and GIS technologies, the path planning of oil and gas pipelines can be analyzed accurately. The experiment has proved the reliability of the system. In terms of path planning, the simulated path of the system will be shortened by 20-30 km compared with the original laying path, especially for long-distance pipelines, which can be reduced by about 30 km. 

 In the process of drilling, safety risk early warning management is implemented in Huabei Oilfield in order to ensure that the risks of drilling crew, equipment, well control, downhole and environment are controlled in an acceptable range, and the hidden dangers or complex accidents are eliminated in the bud. The drilling team, drilling company, construction party and supervision party can carry out risk identification, evaluation and risk rating from the whole life cycle of a well by establishing the four-level risk early warning. Risk warning is carried out for orange and red safety risks, and risks and hidden dangers are investigated so as to eliminate serious accidents such as well control casualties and environmental pollution and to ensure the smooth and safe operation of drilling construction

In order to comprehensively evaluate the current situation of safety work in the oil production management areas and explore management methods, this paper proposed the fuzzy analytic hierarchy process. Taking the oil production management areas as an example, a criterion layer for individuals, equipment, environment and management was established, and a comprehensive evaluation model was constructed. Through calculation, the comprehensive safety evaluation indicator score of the oil production management areas is 85.5 points. The safety risks are minimal and the overall safety work is good. The application of this method not only allows safety managers to keep abreast of the current safety situation in the oil production management areas, but also provides theoretical basis and reference for the next safety decision. 

 The excessive vibration of plunger pumps and related pipe networks is one of the problems that plague the safety of oilfield water injection pumping stations. Excessive pipe vibration often causes fatigue failure of the pipe, which can lead to safety incidents such as fluid leakage. In this paper, a special damper based on particle damping was studied, and a damping analysis model for particle damping technology was established based on the finite element and discrete element coupling analysis algorithm. Then, the finite element method was used to analyze the vibration reduction effect of the equipment before and after the particle damping was added. Combined with the field test data and the space installation location, a reasonable damping and vibration reduction plan was designed, and the on-site installation and debugging of the damper was completed. It was found through research and development that after the particle damping was added, the vibration intensity of the equipment and the outlet pipeline were reduced by more than 57.5% and more than 45% respectively. The safe operation of the equipment has been ensured. 

 Four kinds of drilling fluid systems commonly used in offshore drilling are briefly described in this paper. Among them, the improved PEC drilling fluid system has the characteristics of soft inhibition, low viscosity and high cut, which is suitable for the upper and middle strata of offshore drilling. The PEM drilling fluid system has the characteristics of inhibition, anti-collapse, lubrication and temperature resistance, which is suitable for the middle and deep strata of offshore drilling and the extended displacement and horizontal wells. EZFLOW drilling fluid system has the characteristics of strong sand carrying ability, good reservoir protection and strong anti-pollution ability, which is suitable for large displacement wells, horizontal wells and oil reservoir protection in offshore drilling. The invisible acid completion fluid system has the characteristics of strong reservoir protection and corrosion resistance, which is suitable for the completion of offshore drilling. The paper also introduced the effects achieved by these four drilling fluid systems in offshore drilling applications.

Aiming at the leakage accident scenarios under different working conditions during CCUS pipeline engineering operation, the DNV PHAST quantitative calculation software was used to quantitatively calculate the leakage of supercritical/subcritical pipelines of carbon dioxide and determine the pipeline external protection distance of the pipeline. This provides technical support for the engineering design of the pipeline, safety evacuation under accident conditions, and on-site emergency management.

Safety protection devices such as rupture discs are common in the production site of high-sulfur natural gas. According to the standard, the replacement cycle of rupture discs is 2 to 3 years, during which it is difficult to detect the rupture of the discs in time, bringing hidden dangers to safety in production. Based on the theoretical research of a monitoring device for the operation state of the rupture disc designed by Jiang Yichang, Wen Dianjiang et al., a fixed alarm wire is designed on the circular plate of the rupture disc. When the rupture disc breaks, the circular plate of the rupture disc opens and the fixed alarm wire on the circular plate of the rupture disc will be broken. And the signal remote transmission allows the operator to detect the broken rupture discs in time and replace them as soon as possible. The field application indicates that the rupture disc with alarm device can make the duty room operators quickly discover the rupture disc and replace it in time, which can effectively prevent the fire source of pilot flame station from entering the gas field water tank through the broken rupture disc, and prevent work safety accidents. It is of certain value to promote the application in high sulfur stations with pilot flame and flame arresters prone to be blocked.

 The production process of pyrolysis gasoline hydrogenation catalyst is complex with many raw materials and production processes, and there are many potential safety hazards. Through hazard analysis on the production process of hydrogenation catalyst, countermeasures and emergency disposal measures are formulated to ensure the safety and environmental protection in the production process of hydrogenation catalyst and prevent accidents effectively in the production process of hydrogenation catalyst.

With the further acceleration of industrialization in China, the development of chemical production is becoming more and more important, and the application demand of large-scale chemical air separation technology is also increasing. The noise of the air separation unit in the existing chemical industry is large, which is easy to cause noise pollution. Meanwhile, it will cause health impacts on the operators such as noise deafness and other occupational diseases. The overall stability of the equipment is not so good and the impact of the force can easily loosen the fixed connections, posing safety hazards. This paper discusses a new type of noise eliminator for air separation unit which can provide more technical measures for reducing noise pollution and improving noise and vibration problems of chemical separation units effectively. 

With the continuous upgrading of criteria for effluent ammonia nitrogen, it is more difficult to control ammonia nitrogen in the effluent of refinery saline wastewater treatment unit, and fluctuation often occurs during a period of time. This paper introduced the production test of adding nitrifying bacteria to achieve the standard of biological synergistic treatment. Based on the analysis of the data of the inlet and outlet water of the saline wastewater treatment system during the test, before and after the test, the paper compared the relationship between the pH of the outlet water and the nitrification system. It found out that the abnormal increase of the effluent ammonia nitrogen was mainly caused by the decrease of the alkalinity of the wastewater treatment system. It was proved that the method of adding nitrifying bacteria for biological synergism can be used as an effective emergency measure to restore the biochemical system of wastewater, establish the nitrifying system quickly and restore the ammonia nitrogen removal capacity. 

Taking the oily sludge of certain oily sludge treatment plant as the research object, the oil washing efficiency of single chemical agent and compound agent was compared by means of thermochemical cleaning. And the experimental conditions such as experimental temperature, proportion of oily sludge to prepared water, mixing time and mixing speed were analyzed systematically. The results indicated that the highest washing efficiency of Na2SiO3 · 9H2O is 92.44% among single chemical components; linear alkylbezene sulfonates (LAS) has better washing efficiency, and non-ionic surfactant NP-10 has the best washing efficiency, which is 92.83%. In the compound agent, the cleaning agent efficiency at Na2SiO3 · 9H2O:LAS:NP-10 =6:3:1 can reach 96.58%. The washing efficiency increases with the increase of temperature; with the increase of liquid-solid ratio, the oil washing efficiency first increases and then decreases. The reasonable liquid-solid ratio is 4:1; the optimal experimental temperature is 80 ℃ , and the stirring time is 30 minutes. The oil washing efficiency can reach 96.58%.