Abstract
Drilling operation is the leader of the oil exploration and development industry. The complexity of the process determines the characteristics of high investment and high risk. The particularity of the operating conditions determines the characteristics of labor intensity, gravity, and three-dimensional intersection, which all make the drilling operation process have various risks. These risks affect the efficiency and progress of operations, and even cause major accidents in serious cases, leading to casualties and property losses. Therefore, it is necessary to further improve the well control safety technology, so that the drilling work will gradually move towards scientific, safe and refined technology development direction. Through field investigation and literature reading, the risk of drilling operation is analyzed, and the causes, classification and characteristics of drilling operation risk are summarized. This paper summarizes the complexity of drilling accidents and the importance of risk control research. Since the risk control of drilling operations involves many fields, this paper only makes preliminary analysis and exploration, and further research and exploration are needed to improve the risk control of drilling operations.
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