| Data set information | 
| Name | Drilling Operation | 
| Synonyms | Drilling; Cutting Process; Drilling Safety,钻井作业 | 
| Classification | 
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		Hierarchy level
		
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|  | Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. Drilling operation is the first contact between the formation and the nonnative fluids and equipment. Drilling fluids play a vital role during the drilling operations. Drilling safety is a broad term that encompasses a variety of best practices and procedures designed to keep workers safe while operating drilling equipment. | 
| Quantitative reference | 
| Reference Flow Property |  |