Since 1990s, due to the development of petroleum exploration technology, petroleum machinery and equipment have been addressed by all nations. By means of heavier investment on technology innovation, adopting advanced...Since 1990s, due to the development of petroleum exploration technology, petroleum machinery and equipment have been addressed by all nations. By means of heavier investment on technology innovation, adopting advanced technology to develop new equipments by big oil companies, the overall levels of adaptability, reliability, diversity, sedation, integrity, automatization, intelligence are highly improved. In recent years, the technology of exploration and development for oil and gas in China has expanded rapidly, while the technique of drilling and production is approaching world level. As the drilling engineering orients to the directional well, ultra-deep well and complex well, the research and development of downhole tools to match the technique has shown its importance.展开更多
Mechanical properties and low cycle fatigue are two factors that must be considered in developin gnew type steel for shock absorption. Process capability and process control are significant factors in achieving the pu...Mechanical properties and low cycle fatigue are two factors that must be considered in developin gnew type steel for shock absorption. Process capability and process control are significant factors in achieving the purpose of research and development programs. Often-used evaluation methods failed to measure processyield and process centering ; so this paper uses Taguchi loss function as basis to establish an evaluation methodand the steps for assessing the quality of mechanical properties and process control of an iron and steel manu-facturer. The establishment of this method can serve the research and development and manufacturing industry and lay a foundation in enhancing its process control ability to select better manufacturing processes that are more reliable than decision making by using the other commonly used methods.展开更多
文摘Since 1990s, due to the development of petroleum exploration technology, petroleum machinery and equipment have been addressed by all nations. By means of heavier investment on technology innovation, adopting advanced technology to develop new equipments by big oil companies, the overall levels of adaptability, reliability, diversity, sedation, integrity, automatization, intelligence are highly improved. In recent years, the technology of exploration and development for oil and gas in China has expanded rapidly, while the technique of drilling and production is approaching world level. As the drilling engineering orients to the directional well, ultra-deep well and complex well, the research and development of downhole tools to match the technique has shown its importance.
文摘Mechanical properties and low cycle fatigue are two factors that must be considered in developin gnew type steel for shock absorption. Process capability and process control are significant factors in achieving the purpose of research and development programs. Often-used evaluation methods failed to measure processyield and process centering ; so this paper uses Taguchi loss function as basis to establish an evaluation methodand the steps for assessing the quality of mechanical properties and process control of an iron and steel manu-facturer. The establishment of this method can serve the research and development and manufacturing industry and lay a foundation in enhancing its process control ability to select better manufacturing processes that are more reliable than decision making by using the other commonly used methods.
