Reasons for the problem of slurry eruption in horizontal directional drilling rigs

1. Insufficient mud concentration

During drilling, mud serves as lubricant and proppant, and its concentration must be controlled within a certain range. Once the mud concentration is too low, it will cause insufficient mud ejection and make it difficult to form a stable well wall.

2. The slurry pipe is blocked or broken

Due to the complex internal working environment of horizontal directional drilling rigs, the slurry ejection pipe may be affected by factors such as wheel crushing and tree root impact, or the slurry ejection pipe may be ruptured or blocked due to material aging, deformation, etc., resulting in poor slurry ejection effect. .

3. The mud pump does not work or works abnormally.

The mud pump of a horizontal directional drilling rig is one of the core devices that drives the mud ejection system. Once the pump is not working properly, including pump damage, sudden power changes and other problems, it will affect the mud ejection effect of the borehole.

4. Complex stratigraphic conditions

During the process of horizontal directional drilling, due to the influence of natural conditions such as stratigraphy and terrain, we often encounter various complex geological conditions, such as rock formations, compacted soil, soft plastic clay, etc. These stratigraphic conditions may make it difficult to form a complete mud layer. , resulting in poor pulping effect.