Solutions To The Problem of A Rotary Drilling Rig Getting Stuck During Construction

During the construction of rotary drilling RIGS, stuck drill is a common problem. If not handled properly, it may lead to damage of drill pipes and delays in the construction period. Timely adoption of scientific and reasonable solutions can effectively reduce losses.

1. Slight stuck drill: Try reverse rotation: When it is found that the drill pipe is not severely stuck, the drilling rig can be started to rotate the drill pipe in reverse, while slowly lifting the drill pipe to use the reverse torque to remove the jam. When operating, the speed should be controlled to avoid forced lifting.

2. Adjust the performance of the mud: Reduce frictional resistance: If the stuck drill is caused by insufficient mud viscosity or excessive sediment, new mud should be replenished in time to increase the specific gravity and viscosity of the mud. The sediment can be carried by the mud circulation to reduce the friction between the drill tool and the hole wall.

3. High-pressure water injection: Loosening the stuck area: For stuck drills in clay or argillaceous rock layers, water can be injected into the stuck area through the high-pressure water pipe inside the drill pipe to dilute the surrounding soil, separate the drill tool from the hole wall, and create conditions for lifting the drill tool.

4. Backfilling materials: Reprocess the hole section: If the stuck hole is severe and the above methods are ineffective, materials such as clay and crushed stone can be backfilled into the hole. After they are filled above the stuck hole section, let it stand for a period of time, and then re-drill the hole section to gradually remove the jamming.

5. Inspect the equipment: Eliminate mechanical faults: Some stuck drills are caused by problems with the equipment itself, such as insufficient pressure in the hydraulic system and deformation of the drill pipe. The machine needs to be shut down to inspect the equipment components. Repair or replace the faulty parts before attempting to handle it again.

6. Avoid forced operation: Prevent secondary damage: When the drill gets stuck, do not blindly increase power to forcibly lift or rotate the drill pipe, otherwise it may cause the drill pipe to break and the drilling rig to tip over. The reasons for the stuck drill should be analyzed first, and then targeted measures should be taken.

In conclusion, the solution to the stuck pipe of a rotary drilling rig should be based on the actual situation. It is advisable to prioritize the use of gentle methods to try to remove the blockage and avoid greater losses caused by improper operation. Meanwhile, taking preventive measures during construction can reduce the occurrence of stuck drill problems from the source.