Drill rods are a kind of products that require relatively high precision. They are widely used in mines and coal mining industries. They are all operated in places where the environment is relatively difficult. The quality issues are most important to everyone. However, in the process of use , There...
In coal mines, it is mainly used for coal mine water exploration, gas exploration, coal direction exploration, coal thickness and coal seam water injection, etc. Moreover, the diameter and application fields of various drill rods are different. Therefore, it is recommended that all friends should "c...
There are many factors affecting the performance of drill pipe wear-resistant belts, and there are three major factors in general: 1. The influence of load force During the drilling process, all factors that increase the contact force between the drill pipe joint and the inner wall of the casing (or...
1. The drill rod should be used in strict accordance with the tension, torque and curvature of various drill pipes; 2. Before the homework, the wire buckle oil can effectively prevent the drill rod sticking, reduce unloading torque, and reduce wear. Slowly tighten when the upper buckle is slo...
The drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of the drill pipe is to transport the drilling mud to the drill bit and ra...
The drill joint is part of the drill pipe, a branch joint and a female joint, and is attached to both ends of the drill pipe. In order to enhance the connection strength of the joint, it is necessary to increase the wall thickness of the pipe body in the joint portion, which can be divided into: thi...