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The material of geological drill pipe is the main factor affecting the life of the drill pipe.
Release time:
2018-05-17
Author:
Source:
There are many reasons for the fracture of the drill pipe, which should be listed one by one. First of all, the material of geological drill pipe is one of the main reasons, today's market drill pipe material is more chaotic, many businesses in order to get more economic benefits will be shoddy. Since there are such low-cost products, there will be cheap users who buy them at low prices and have no ability to distinguish quality. The consequences are not worth the loss. What's more, some users buy inferior pipes at high prices. The consequences are the same.
There are many reasons for the fracture of the drill pipe, which should be listed one by one. First of all, the material of geological drill pipe is one of the main reasons, today's market drill pipe material is more chaotic, many businesses in order to get more economic benefits will be shoddy. Since there are such low-cost products, there will be cheap users who buy them at low prices and have no ability to distinguish quality. The consequences are not worth the loss. What's more, some users buy inferior pipes at high prices. The consequences are the same.
The hardware measures during processing are also more important. It is mainly reflected in the processing standard, processing type, processing quality, processing accuracy and so on. The heat treatment process is followed by quenching and tempering and hardening. After such treatment, the material will have better performance and will not be easily broken.
1, the hole sealer must be used straight, it is strictly prohibited to discount heavy pressure.
2. Geology of usedrill pipeWhen adjusting the sequence valve (the opening pressure should be greater than 1MPa), the pipeline should be monitored by a pressure gauge, the pressure water is strictly prohibited to be higher than the working pressure, after the operation is completed, remove the pressure and pressure water pipeline, wait for the hole sealer to relieve pressure without water, restore to its original state, and pull out the hole sealer for sorting and standby.
3. All sealers must be put inDrillingIt is strictly prohibited to expose outside the hole. Exposed outside the hole, the expansion is easy to burst. It is suggested that soft coal should be put into the drilling hole for more than 1 m, and hard coal should be put into the drilling hole for more than 0.5 m.
4. If it is found that the expansion body does not expand, first check whether the pressure water exceeds 1MPa, and then check whether the cone core of the sequence valve is stuck by debris and cannot be closed. If there are sundries, rinse them with water and install them. The spring in the sequence valve has no direction, and the tip of the cone valve core is in the direction of expansion, so it should be avoided to remove the reverse. Guide body: used to lead the hole sealer into the drilled bottom hole of the coal seam, and its front end is equipped with a sequence valve.
5. During water injection, the operator cannot face the drilling hole to avoid hurting people when the pressure in the hole is high and the short-term low pressure of the external pipeline extrudes the hole sealer out of the hole.
6. Regulating geologydrill pipeThe spring pressure of the sequence valve can control the opening pressure of the valve. For example, the opening pressure of the sequence valve is adjusted to 2MPa. When the inlet pressure is ≤ 2MPa, the valve is closed, the inlet water is blocked in the expansion cavity, and the expansion body expands rapidly (the diameter increases and the length decreases).
Key words:
The material of the geological drill pipe of Yikuang Science and Technology is the life of the geological drill pipe.
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