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During the drilling process in Hailar region of Daqing Oil field, the drill stem failure frequently happens, which seriously impacts the exploration and development in the region. In order to identify the root causes of drill stem failure in the region, using the grey theory method, run a grey correlation analysis on the affecting factors, which may lead to fail in drill tool during the drilling process...
Optimized drilling technology is the classical one that it is the necessary links to realize the scientific drilling. Whereas, drilling engineering is a complex system because of the plentiful uncertain random information which occurs during the drilling process. The optimizing problem has to become more complex and uncertain because of the complexity of the drilling engineering. It is imperious to...
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