Trick 1： compression method to change according to load and shock
1 in the soft soil operation, because the load is light, after a large flow output, can be high-speed pressurized drilling.
2 when the clay layer is operated, there must be continuous pressure, to ensure that the high speed with low load drilling.
3 when the friction is relatively large sand, to constant pressure and back pressure, otherwise you have to work at least 3 hours, not to mention the wear condition of your machine.
4 when you encounter a high-precision oscillation geology, it needs the brave. constantly pressurized forced crushing.
Trick 2: drill pipe speed through the geological soft and hard strength and category to control the output of revolutions
1 don’t look down on the pebble layer, You have to remember to avoid hard spearheads when you are operating, using slow speed drilling, and work efficiency that is a word —— high.
2 if you are a bit anxious, in the smooth mud stone and harder sand layer operation, you must be patient, you will find that it is so easy with low-speed drilling.
3 experienced the bottom of the gravel know, broken edge teeth that are a small thing, in the high-speed operation of the gravel layer, heard a bang, the drill pipe was almost twisted off, later knew, to use medium speed drilling, otherwise repair the cost of the rig is scary
4 in the smooth bottom operation, high-speed drilling is no problem
The rotary drilling rig is equipped with a drilling tool with a drilling hole hammer. During the construction, the impact work and impact frequency generated are directly transmitted to the hammer head, which quickly crushes the rock within the diameter of the pile hole and then pours it into a pile.
Trick 3 :The engine speed is well adjusted, energy saving and efficient
