This time, we detected more than 200 items of violations, irregularities, and irregularities in various inspections, and adopted measures such as suspension of business rectification, deadline correction, on-site correction, warning, and economic penalties, which effectively crack down on all types of environmental protection inspection violations. The inspection results showed that 1,206 environmental inspection agencies have been established in various provinces (autonomous regions and municipalities) in accordance with the Air Pollution Prevention and Control Law and the Regulations on the Administration of Environmental Protection Inspection Institutions for Motor Vehicles and the Regulations on the Administration of Environmental Protection Inspection Marks for Motor Vehicles. Testing line 3982. Compared with 2005, the environmental inspection capacity of motor vehicles has increased 11 times, achieving a leap-forward development. At the same time, environmental protection departments at all levels continued to strengthen the building of supervision capabilities. A national, 9 provincial and 58 prefecture-level motor vehicle environmental protection regulatory agencies have been established to gradually increase the level of motor vehicle pollution prevention and management.
At present, there are four outstanding problems in the environmental inspection of motor vehicles in China: First, there is a weak link in the commissioning of environmental protection inspections for motor vehicles. There are still 14 provinces that have only entrusted environmental protection work in some cities, and not in all prefecture-level cities in the jurisdiction. To carry out, to bring the local people the difficulties of testing in different places. Second, the problem of environmental protection testing equipment is outstanding, some testing software systems are not standardized, and the program design for detection warm-up, equipment calibration, etc. is not perfect or does not follow the cycle specified in the standard. Third, the internal management of some inspection agencies is lax, re-inspection quantity, light-test quality, and the importance of inspection technology and equipment maintenance. Fourth, the lack of supervision and control capabilities for motor vehicles in some areas, the lack of specialized regulatory agencies and management personnel, the lack of effective monitoring systems and the management of ledgers, and the inability to meet the needs of motor vehicle pollution reduction.
The "12th Five-Year Plan" for national economic and social development has adopted 10% emission reductions for nitrogen oxides as a binding indicator, among which motor vehicles bear about one-third of the nitrogen oxide emission reduction tasks. The environmental protection inspection of motor vehicles as an effective means of environmental protection management of vehicles in use is also an important measure for the emission reduction of nitrogen oxides in the “Twelfth Five-Year Planâ€.
Recently, the environmental protection department will take the following measures to comprehensively promote the work of pollution prevention and control of motor vehicles: First, we must speed up the commissioning process for environmental protection inspections of motor vehicles, further standardize the entrustment procedures, and strive to achieve full coverage of environmental inspection agencies in prefecture-level cities in 2012. Second, we must increase the intensity of special law enforcement inspections, strictly enforce the air pollution prevention and control law and environmental protection inspection related standards and norms, and investigate and punish all types of environmental protection inspection violations. Third, we must strengthen the long-term supervision mechanism. Combining the centralized inspection with the daily supervision, timely conducting the testing equipment comparison test, and perfecting the training system for testing personnel. Fourth, we must strengthen the capacity building of pollution prevention and control of motor vehicles, speed up the construction of environmental protection monitoring platforms and databases for motor vehicles, and realize the online submission of testing data and online environmental protection signs. Fifth, we must improve the management system for motorized environmental protection signs. Comprehensively promote the issuance of environmental protection signs for motor vehicles, and strengthen communication and coordination with public security and quality inspection departments, and promote the formulation of policies and measures conducive to restricting the use of “non-standard vehicles†and “yellow-marked vehicles†to further consolidate the “12th Five-Year Planâ€. Motor vehicle pollution reduction work basis.
Tubing is mainly used to provide oil and gas flow passage during production of oil and gas wells. For flowing wells, due to the large inner diameter of the CASING, the casing is directly used for production. Due to the density difference, pressure drop and expansion, the liquid flows up rapidly, causing the liquid to slip, resulting in the ineffective utilization of the downhole elastic energy. Running tubing with smaller OD and ID during production can effectively solve the above problems by allowing fluid to flow in the tubing. Therefore, running tubing is required during production of flowing wells. The downhole operation and production of flowing well and non flowing well can be completed by using various tools for tubing running.
The basic requirements of the tubing used for workover are: to comply with the safety and economic principles, to meet the technical requirements adopted during well completion, and to meet the requirements for corrosion resistance and operation measures after the well is put into production.
According to the manufacturing process, oil pipes can be divided into seamless pipes and electric welded pipes. Seamless pipe is a kind of forged steel pipe without welding seam, which is made of hot working steel. After pressing, stretching, heat treatment and other processes, it reaches the standard size of oil pipe, forming a seamless oil pipe series. Electric welding pipe is a kind of pipe with a longitudinal weld formed by resistance welding or electric induction welding without filler metal. The welding edges are squeezed together by mechanical pressure, and the standard size oil pipes are reached through heat treatment and other processes, forming a series of electric welding pipes.
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