Views: 5 Author: Site Editor Publish Time: 2020-06-05 Origin: Site
Horizontal directional drilling guide tool
1. Dental plate bit
Generally speaking, horizontal directional drilling has different designs for different formations. Therefore, the bit plate bit has a common type with two bends and an enhanced type with two bends. In addition, it is used for soft to medium-hard and more uniform clay, or loose to dense sand. A
2. Swing top drill bit
The pattern is as shown above. The rocker bit is suitable for harder formations and soft rock formations that cannot be penetrated by propulsion alone. A
3. Bottom drilling tool for oblique shorting holes
This combination of drilling tools is generally used for large directional drilling soft formation crossing. The skew making shorting is generally one degree, thirty degrees to two degrees, and it is usually used in combination with a milled tooth tri-cone bit. If it is harder, the thrust will be greater, and if it is soft, the deflection effect is not obvious. A
4. Double-wall drill pipe rock drilling rig guidance system
This type of drilling rig has two sets of top drive devices, which specifically drive the double-wall drill rod system. The bottom hole assembly is very similar to the mud motor, but there is no driving part of the mud motor
