As Japan is good at imitating innovation, the main content of government administrative promotion is to create appropriate market demand, actively help enterprises organize cross-industry alliances, and guide the development of comprehensive product technology. Emphasis on the continuity and compatibility of policies. Historically, the government's support for the development of electric vehicles has a strong utilitarian purpose. When the government's objectives are achieved through other means, such as the reduction of fuel vehicle emissions, the temporary relief of the oil crisis, and the reduction of administrative support. The proposal of a sustainable development strategy will help ensure that the government will support electric vehicle innovation with a long-term and stable policy. Whether the policy is complete or not will affect the final effectiveness. Pay attention to changes in project management methods. From a purely technical and behavioral skill management approach to a management approach that relies on e-commerce, risk management, and systems management. Adopt international advanced and complex system concurrent engineering, strictly determine the stage goals of the project in strict accordance with the law of automobile product development, and review and release each stage of goals, implementation date and capital use, rolling investment, highlighting key points to ensure the realization of industrialization goals. Link the technical goals with the actual needs of the market, increase the flexibility of the project plan, and shorten the correction cycle of the project plan. Electric vehicles are new products and their technologies are in a volatile period. For example, the development of a zero-pollution pure electric vehicle technology line has shifted toward the development of low-pollution and ultra-low-pollution hybrid electric vehicles and fuel cell electric vehicles.
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.
Tubing,Api 5Ct Tubing,Api Tubing,Seamless Api 5Ct ESASTSUN OILFIELD EQUIPMENT MANUFACTURING (CAMBODIA) CO., LTD , https://www.eastsuncambodia.com