Changxing Drilling Team, Changxing Villa Drilling Well, Local Professional Drilling Team

Changxing Drilling Team, Changxing Villa Drilling Well, Local Professional Drilling Team

1. Before going into the wellbore, the borehole wall, diameter, and depth should be checked to determine if the wall is regular and smooth. If any irregular walls such as reduced diameter are found, they should be promptly repaired to ensure the smooth implementation of subsequent processes, and the depth of the borehole should be measured.
2. Change the slurry. Use slurry or clean water at the bottom of the hole to replace the thick slurry from the original hole formation from bottom to top. When the concentration of the returned mud and the diluted slurry water in the well is basically the same, the slurry exchange is completed.
3. Lower pipe. Lower the pipe according to technical requirements. To install the well pipe centering device, welders need to work and weld 2-4 pull plates. If necessary, floating plates must be added inside the pipe, and the bottom of the pipe should be sealed with steel plates

Changxing Drilling Team, Changxing Villa Drilling Well, Local Professional Drilling Team

Combination of drilling process flow. There are two commonly used types: rigid full hole drilling tool assembly and pendulum drilling tool assembly. The former can be drilled with a higher drilling pressure, which is beneficial for drilling speed and has a smaller wellbore curvature, but cannot correct inclination. The latter requires control of drilling pressure, which affects drilling speed but can be used for inclination correction.
Also remind everyone to pay attention to several issues. How to choose a well in Jiashan? Generally, the place where the well is drilled should be in the suburbs or smaller towns or rural areas. Due to insufficient drainage facilities in these areas, it is easy to pollute the well. Some suburban or village areas have farmland or vegetable fields. Nowadays, crops need to be fertilized with chemical fertilizers and insecticides, which are not easily decomposed in the land. And it will seep into groundwater through water sources. Drilling should be kept away from polluted areas. If there is farmland or vegetable fields around, it is inevitable to recommend drilling deeper. The well should be considered impermeable, such as using hollow cement columns. Drilling in Jiashan is complex and can vary under underground conditions. The shallow layers of the underground strata (within a few kilometers) are layered. There are also geological phenomena such as folds, faults, basement, depressions, etc. When drilling wells in Jiashan, attention should be paid to several aspects. 1. Before drilling, in order to prevent collapse during construction, the specific gravity of the mud should be determined.