What are the hidden dangers of well drilling machine engineering construction safety? What precautions?

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With the rapid development of society and economy, the application scope of various ore resources in my country has been expanding, and my country’s demand for these ore resources is also increasing. Under this background, the number and scale of drilling projects have gradually increased. However, no matter what kind of ore resource it is, it is inherently dangerous and easily affected by various factors, which can lead to safety accidents. Ensure project construction safety.
In order to ensure the safe construction of the drilling project and prevent the occurrence of safety accidents, it is necessary to strengthen the safety management during the whole process of the drilling project, and at the same time pay more attention to the precautions in each link of the construction, so as to ensure the construction of the drilling project. quality and economic efficiency. In the following, the author mainly discusses the relevant precautions in each link of drilling engineering construction for reference.
1 Matters needing attention in the process of foundation construction
First of all, the foundation of the drilling airport should have the characteristics of applicability, stability, firmness and leveling during the construction process. At the same time, before leveling the foundation, an investigation should be carried out in advance to ensure that there are no important lines such as pipelines and cables underground. , so as to avoid unnecessary economic losses while affecting the construction. Secondly, for the flat foundation, the filling stones should be reduced as much as possible, and for the unavoidable filling and padding, it should be noted that the padding soil under the tower base should not exceed one-fourth of its total area, and it is strictly forbidden to fill the foot of the tower. .
2 Precautions when installing, relocating and dismantling the rig
First of all, in the process of installation and dismantling of the drilling tower, the unified command of the relevant person in charge should always be followed, and simultaneous operation on the tower and under the tower is strictly prohibited. When dismantling the rig, it should be dismantled layer by layer in the order from top to bottom. At the same time, in order to ensure safety, the relevant staff should wear safety helmets, work clothes and work shoes in strict accordance with the regulations. Also fasten your seat belt [1]. Secondly, in order to ensure construction safety, the distance between high-voltage lines and rigs should be more than 30 meters. At the same time, in fog, snow, thunderstorms, strong winds above level 5, and at night, the installation and relocation of rigs are usually prohibited. and disassembly work.
3. Precautions during the lifting and turning of drilling tools
First of all, the daily management and maintenance of the relevant drilling equipment should be strengthened. For the lift, it should always be ensured that its lifter, unscrewing tool, clutch device, braking device and traveling block are in good condition, flexible and reliable. Secondly, the relevant precautions for the operation of the elevator: when the lifter is at the orifice, it should be ensured that the number of turns of the reel wire rope is more than 3. When operating the elevator, the principle of smooth operation should be strictly followed. During the lifting process It is strictly forbidden to kick or touch the wire rope with your hands. The operator of the lift should concentrate on the operation, pay close attention to the status quo of the upper and lower moving range of the lifter, pay attention to the smooth operation, and strictly prohibit the actions of yanking, lifting and braking. Cooperation and communication between workers.
4 Precautions in safety inspection and acceptance
Before drilling, the rig leader, squad leaders and relevant technical personnel should be organized to form a safety inspection and acceptance team. At the same time, for special circumstances, the State-owned Assets Division, the Team Safety Division, and the rig supervisory department and other relevant departments should also participate. The main contents of safety inspection and acceptance include: first, check whether the orifice, the vertical shaft and the installed crane are on the same vertical line, that is, to comply with the three-point-one-line system; second, check whether the protective cover is reliable and intact; Third, check whether the related electromechanical equipment and mechanical equipment are installed firmly, regularly and smoothly.
5 Safety precautions
First of all, the high-pressure hose of the rig faucet is very prone to entanglement during the work process. Therefore, special attention should be paid to preventing the accident of the high-pressure hose of the rig faucet from falling and slamming, so as to avoid casualties. Second, drilling engineering Equipment such as power machines, drilling rigs, drilling towers and mud pumps used in the construction process must be equipped with corresponding safety protection facilities [2]; thirdly, the quantity and specifications of the ropes used in the drilling tower should be comprehensively considered. The rig height and other factors are determined. When the height of the drilling tower is lower than 18 meters, it is usually enough to set 4 ropes. When the height of the drilling tower is more than 18 meters, it is usually necessary to set 8 ropes, and they should be divided into two layers. .
When determining the plane distribution of the ropes, the angle between the four ropes is set to 90 degrees, and the angle between the three ropes is 120 degrees. At the same time, the lower end of the ropes should be on a special ground. fixed on the anchor. When the local anchor is installed in a hard formation, the hole can be drilled with a steel drill first, and then the waste drill pipe is inserted into the hole and fixed with cement [3]. When the local anchor is installed in the loose stratum, a pit with a width of about 0.8 meters and a depth of less than 1 meter can be dug, and a waste casing or a log about 1 meter long is placed in it, and placed in the hole. Wire rope cover is fastened on it; then, when it is in the season of frequent thunderstorms, lightning rods should be installed on the rig, the distance between the rig rope and the down conductor should be more than 1 meter, and the air terminal should be at least higher than the tower. top 1.5 meters; finally,
6 Relevant matters needing attention when dealing with accidents in wells
First of all, before dealing with the accident in the well, a comprehensive inspection of the relevant equipment should be carried out, including the conditions of instruments, meters, hoists, rope clamps, wire ropes, traveling blocks, components, cranes and drilling equipment and other accessories. In order to find the cause of the problem and better adapt to the safety situation of accident handling; secondly, in the process of handling the accident in the well, there must be a special person in charge of the command, and skilled technicians or machine and squad leaders should be allowed to operate. At the same time, according to the actual situation, unrelated personnel should be evacuated from the scene to avoid accidental injury.
7 Conclusion
To sum up, there are many influencing factors in the whole process of drilling engineering construction, which bring certain risks to the construction safety of drilling engineering, and also easily lead to some safety accidents, which can easily cause unnecessary losses. In order to ensure the construction quality and efficiency of the drilling project, it is necessary to strengthen the safety management during the construction of the drilling project, find out and effectively solve various safety hazards in the construction process, and avoid the occurrence of safety problems.