Types and meanings of circular marks
The circular marks on the drill pipe section hoop are mainly divided into three types: one is the size mark, the second is the grade mark, and the third is the manufacturer mark.
1. Size mark: The size mark mainly reflects the outer diameter, wall thickness, length, etc. of the drill pipe for easy recognition and use. Generally speaking, numbers are printed on the circular mark of the size mark to indicate the specific size of the drill pipe. For example, if "89" is printed on the circular mark, it means that the outer diameter of the drill pipe is 89 mm.
2. Grade mark: The grade mark represents the quality grade of the drill pipe and is the quality guarantee of the drill pipe. Numbers are also printed on the circular mark of the grade mark to indicate the grade of the drill pipe. For example, if "G105" is printed on the circular mark, it means that the drill pipe is G105 grade and has high toughness, strength and wear resistance.
3. Manufacturer mark: The manufacturer mark is mainly used to indicate the manufacturer of the drill pipe for easy query and management. Different manufacturers' logos will have different letters or logos printed on the circular logo, such as "DP" for Daqing Petroleum Drill Pipe Factory, "XT" for Xingtai Drill Tool Factory, etc.
The Importance of Circular Logos in Drilling
Circular logos are very important in drilling operations. They can not only help drillers quickly identify the size, grade and manufacturer of drill pipes, but also ensure the quality and performance of drill pipes and improve the efficiency and safety of drilling operations.
First of all, the drill pipes need to be inspected before drilling to check the quality, size and grade of the drill pipes to ensure the normal progress of drilling operations. Through the identification of circular logos, the parameters of the drill pipes can be quickly and accurately identified to determine whether they meet the requirements.
Secondly, in drilling operations, drill pipes of different sizes, grades and manufacturers need to be used in different combinations to achieve the greatest benefits. Only by accurately identifying the parameters of the drill pipes through circular logos can the correct drill pipe combination be selected to improve the efficiency and quality of drilling operations.
Finally, in drilling operations, circular logos are also one of the important signs used in combination with other signs and detection methods to ensure the quality and safety of drill pipes. Only when the circular mark is clear and understandable can other monitoring and detection be carried out to ensure the safety and reliability of drilling operations.
In summary, circular marks play a very important role in drilling operations and are an indispensable part of drilling operations. Drilling workers should understand and master the meaning of these marks, use them correctly, and improve the efficiency and safety of drilling operations.
Conclusion
The circular marks on the drill pipe collar represent important information such as the size, grade, and manufacturer of the drill pipe, and play a very important role in ensuring the quality and safety of drilling operations. Drilling workers should understand and master the meaning of these marks, use them correctly, and improve the efficiency and safety of drilling operations.