How To Clean The Mud inside The Holes of A Rotary Drilling Rig

When a rotary drilling rig is performing drilling operations, it is a common phenomenon that a large amount of mud appears in the hole. If this mud is not cleared in time, it will affect the quality of the hole formation and subsequent construction. The following are six methods for cleaning the mud in the hole:

1. Sedimentation tank sedimentation method: The slurry in the hole is pumped into the sedimentation tank, and the sand and mud are naturally settled by gravity. After the slurry stratifies, the clear water on the upper layer can be recycled, and the sediment at the bottom should be removed regularly.

2. Mechanical separation method: With the aid of a mud separator, solid particles in the mud are separated through a screen and centrifugal force. This method is highly efficient and can rapidly reduce the sand content in the mud.

3. Chemical treatment method: Add chemical agents such as flocculants to the slurry to cause fine particles to coagulate into large particles for sedimentation. This method is applicable to the treatment of mud with complex components.

4. Replacement method: Inject clear water or high-quality mud into the hole and gradually replace the mud with a high residue content. The injection speed needs to be controlled to prevent the hole wall from collapsing.

5. Vacuum suction sludge method: By using the negative pressure generated by the vacuum pump, the mud and sediment at the bottom of the hole are sucked into the sludge storage tank. This method cleans the bottom of the hole quite thoroughly.

6. Manual cleaning method: When the amount of mud is small or the machinery cannot operate, workers go down into the hole to clean it manually. Safety precautions must be taken when working.

In conclusion, there are various methods for cleaning the mud in the holes of rotary drilling RIGS. In actual construction, the appropriate method should be selected based on factors such as the amount of mud and geological conditions to ensure the smooth progress of construction and guarantee the quality of hole formation.