How to choose a horizontal directional drilling rig?

How to choose a horizontal directional drilling rig?

Feb 08, 2023

How to choose a horizontal directional drilling rig:
Horizontal directional drilling technology is a new construction technology that combines directional drilling technology in the petroleum industry with traditional pipeline construction methods, and then completes the intention of pipeline trenchless construction. This kind of equipment is generally suitable for steel pipes and PE pipes with a pipe diameter of φ300~φ1200mm, and the pipe laying length can reach 1500m. It is suitable for various soil conditions from soft soil to hard rock, and has broad application prospects.

When selecting a horizontal directional drilling rig, the pulling force is the main data, and other data are easily ignored. And a good principle should be to see if the pulling force value of the drilling rig is within the required range, and the output torque of the drilling rig and the parameters of the drill pipe are the key data. Of course, these capabilities of the horizontal directional drilling rig are determined by the engine of the drilling rig, so when choosing a drilling rig, it depends on the power of the engine, which determines whether the drilling rig can output continuous power for a long time. Operating procedures for horizontal directional drilling rig:

1. First, an isolation fence should be erected around the horizontal directional drilling rig.

2. During the operation of the horizontal directional drilling rig, when an emergency occurs, emergency treatment should be carried out in accordance with the relevant provisions of the operating procedures.

3. Operators should go through special exercises to understand and master the functions, structures, applications, protection and maintenance methods of the horizontal directional drilling rigs and supporting equipment they operate, and they can only operate after passing the exercises.

4. During the construction process, operators should wear insulating shoes, hard hats, insulating gloves and other safety supplies, and positioning exploration operators should wear alert clothing.

5. For projects crossing railways and highways, you should contact the relevant competent authorities before construction. During construction, you should consider the traffic situation of vehicles and set up warning signs.

6. The size of back dragging and reaming smuggling is 1.2---1.5 times the diameter of the pipe to be laid. A suitable drilling fluid should be produced according to the soil quality.

7. When the drill pipe of the horizontal directional drilling rig is disassembled, the thread oil should be applied to the threaded part of the drill pipe. After completion, maintenance should be carried out according to the regulations in the maintenance manual.

What is the working principle and process of horizontal directional drilling?
Notes on the use of horizontal directional drilling rigs