Advances in Foreign Turbodrill Technology

With the development of unconventional oil and gas resources, especially the exploitation of ultra-deep, high-temperature and high-pressure formation resources, as well as the continuous advancement of drill bit technology, turbodrills have been widely promoted because of their high speed, high temperature resistance and low vibration characteristics. And the penetrate rate increase performance is significant. The latest technological achievements of turbodrill are introduced. The key technologies of turbodrill tools from French Neyrfor Company, Russian VNIIBT-Drilling Tools Company and American Halliburton Sperry Company are presented. The advances in foreign turbodrill technology are summarized from the aspects as follows: the development characteristics of turbodrill tools, the innovative design and basic parameters of different types of turbodrills, the research and development of the reducer turbodrill, the turbodrill compound drilling technology and typical application cases of foreign turbodrills. Finally, the development trend of turbodrill technology is pointed out. Combined with the development direction of our country's oil and gas engineering, suggestions are made for the selection and key research and development directions of domestic turbodrills.