What Should Be Done If Bends Or Deviations Occur During The Operation of A Small Rotary Drilling Rig

When a small rotary drilling rig is in operation, bending holes and deviation can affect the quality and progress of the project. In the face of such problems, effective measures need to be taken promptly to deal with them. The following introduces to you from multiple perspectives the methods for dealing with bent holes and skew of small rotary drilling RIGS.

1. Stop drilling in time for inspection: Once a curved hole or deviation is found, immediately stop the drilling operation. Carefully inspect the drilling rig equipment for any faults, such as whether the drill pipe is bent, the wear condition of the drill bit, and whether the pressure of the hydraulic system is stable, to provide a basis for subsequent handling.

2. Analyze geological factors: Re-examine the geological conditions at the drilling site to check if there are any unevenly hard and soft strata. If it is caused by geological problems, the drilling parameters can be adjusted. In hard strata, the drilling speed should be slowed down and the drilling pressure reduced to avoid deviation due to uneven force.

3. Adjust the position of the drilling rig: Use measuring instruments to recalibrate the position of the drilling rig to ensure that the rig chassis is level and the center of the drill bit is aligned with the pile position. If the position of the drilling rig deviates, adjust it in time to ensure that the verticality of the drilling rig meets the construction requirements and prevent further deviation.

4. Adopt corrective measures: For slight deviation, repeatedly sweep the hole at the deviation point to make the borehole straight. When the deviation is severe, backfill the clayey soil to 0.5-1 meter above the deviation. After the sediment is compacted, re-drill and gradually correct the hole position.

5. Inspect the condition of the drill tools: Check whether the drill pipe connections are firm, if there is any loosening or deformation, and whether the drill bit is severely worn or structurally damaged. If there are any problems with the drilling tools, they should be replaced or repaired in time to ensure their normal operation and avoid affecting the drilling accuracy.

6. Strengthen construction monitoring: During the subsequent drilling process, increase the frequency of monitoring the verticality and position of the borehole. Real-time monitoring can be carried out using inclinometers and other equipment. Once any abnormality is detected, adjustments should be made promptly to prevent the recurrence of curved holes and deviation problems.

Conclusion: When bending holes or skewing occur during the operation of small rotary drilling RIGS, it is necessary to calmly analyze the causes and take targeted measures from multiple aspects such as equipment, geology, and operation to deal with them. Strengthening the inspection and monitoring during the construction process helps to identify and solve problems in a timely manner, ensuring the construction quality and project progress.