What Is Directional Boring?
A directional hole is a borehole that is within the bending range allowed by the construction. With the change in depth, the inclination angle is changed regularly so that the borehole passes through the ore body at an ideal angle. The construction technology of directional holes is more complicated. Before the design, there must be sufficient geological data, such as the thickness, depth, inclination, and hardness changes of rock and mineral layers.
Directional hole
Right!
- Chinese name
- Directional hole
- Object
- drilling
- Condition
- Within the allowable bending range of the construction
- Features
- Regularly change the inclination
- A directional hole is a borehole that is within the bending range allowed by the construction. With the change in depth, the inclination angle is changed regularly so that the borehole passes through the ore body at an ideal angle. The construction technology of directional holes is more complicated. Before the design, there must be sufficient geological data, such as the thickness, depth, inclination, and hardness changes of rock and mineral layers.
- Directional drilling is generally used in strata with an inclination greater than 60 °, and with soft and hard interlayers, or in layers with a gentle upper part and a steeper lower part. The holes are drilled at a certain depth interval at 1, 2, 3, etc. Drilling. Avoid the short angle between the straight hole and the rock layer or the surface of the ore body is too small or the angle of the hole is too long. The direction of the directional hole is the same as that of the inclined hole, and it is required to be perpendicular to the strike of the rock formation.