Top drive drilling devices also have some specific advantages:
1. Save time for receiving single root
The top drive drilling device does not use kelly rods and is not limited by the length of kelly rods, avoiding the trouble of drilling about 9 meters to connect a single rod. Instead, it uses upright drilling, which greatly saves the time of connecting a single root, thereby saving drilling time.
2. Backlash to prevent sticking
The top drive drilling device has the ability to use a 28-meter column to undercut the hole, which can smoothly circulate and rotate the drilling tool out of the well bore without increasing the tripping time. In the process of directional drilling, the total tripping time can be greatly reduced.
3. Drill down
The top drive drilling device has the ability to drill through sand bridges and reduce diameter points without disconnecting the kelly. When using the top-driven drilling device to go down the drill, the drill string can be connected in a few seconds, and the eye can be cut immediately, thereby reducing the risk of sticking.
4. Personnel safety
The top drive drilling device can reduce the number of single roots by 2/3, thereby reducing the accident rate. Only need back pliers to receive a single root. The tilting device on the shackle device assembly on the drill pipe can make the lifting ring and the elevator swing down to the mouse hole, which greatly reduces the risk of personnel work.
5. Equipment safety
The top drive drilling device adopts a motor to rotate the make-up, which makes the make-up smooth. The make-up torque can be observed from the torque meter to avoid interference or insufficient make-up torque. The maximum drilling torque is set so that the motor will automatically stop rotating when the drilling torque exceeds the set range during drilling. After adjusting the drilling parameters, the motor can drill normally to avoid overloading the equipment for a long time.
