Drill bit wear and maintenance caused by improper combination of drilling tools-water well drilling rig

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In drilling operations, irrational bottom hole assembly (BHA) is a major cause of frequent bit wear. If the drill pipe diameter doesn’t match the bit—say, too thin—the torque transmission will be unstable, making the bit wobble during drilling. This leads to uneven wear, with some areas excessively worn. Moreover, poor sealing at BHA connections can cause drilling fluid leakage, impairing its cooling and lubricating effects and accelerating bit wear.

To avoid such issues, ensure precise matching between drill pipes and bits when selecting BHA. Choose drill pipes with suitable diameter and strength based on bit size and operation requirements to stabilize torque transmission. 同时, inspect seals at connection points carefully before assembling BHA. Replace any damaged seals promptly to ensure good sealing and prevent fluid leakage. During installation, follow operation procedures strictly and use professional tools to secure connections firmly.water well drilling rig

 

For daily maintenance, conduct a full inspection of BHA before each operation, checking for drill pipe bending, deformation, or loose connections. After operations, clean the BHA, especially connection areas, to remove attached impurities and dirt. Regularly perform flaw detection on BHA to identify potential defects like cracks in time. If abnormal bit wear is found, carefully check for BHA issues and adjust or repair them promptly. Only with a rational and well-conditioned BHA can bit wear be effectively reduced, improving drilling reliability and efficiency.water well drilling rig

 

If you have questions about BHA selection and installation—such as optimal configurations for different operation scenarios—feel free to discuss anytime.