Chen Xinfa, Niu Jianshe, Wang Zhen, Zhang Qiudong, Zhang Qingwei "Application of Air Compressor in Quickly Finding Water and Drilling Wells". Here is mainly an excerpt from the section about the application of Air Compressors in drilling wells.
① Use a screw Air Compressor to ensure that the pipeline is clean, smooth, and sealed to prevent debris such as debris in the pipeline or drill pipe from falling into the impactor, which will accelerate the wear of the impactor or jam the piston. Sometimes the Air Compressor cannot be turned on, and thread oil must be applied to the connection of the threaded thread of the drilling tool to prevent air leakage from the pipeline. Due to the high wind pressure of the Air Compressor and the large air volume, the drilling effect is not obvious due to the loose connection of the drill tool thread and the damage of the drill tool thread.
② The impactor should be disassembled for inspection and cleaning regularly. When assembling, it is necessary to ensure the adjustment of the clearance of each joint. During normal drilling, oil is injected into the impactor through the drill pipe at least once per shift, and the injection volume is about 0.3-0.6kg each time, so that the internal lubrication of the impactor is fully lubricated, the service life of the impactor is prolonged, and the frequency of drilling is reduced.
③Keep the bottom of the hole clean. If the bottom of the hole falls into metal or other objects, it is strictly forbidden to lower the impactor into the hole.
④ When the impactor is about to go down to the bottom of the hole, the air should be supplied first, and the impactor should be lowered to the bottom of the hole while supplying the air; All cuttings are discharged from the orifice, and the air supply can only be stopped after the active drill pipe is lifted out of the orifice. To prevent drill sticking and buried drill accidents caused by the sudden stop of wind and the falling of cuttings in the hole.
⑤ When drilling, it is necessary to pay attention to the situation in the hole and the change of wind pressure at any time. If the wind pressure suddenly increases or the impactor does not work normally in the hole, it must be dealt with immediately . If the treatment is invalid, it is necessary to lift the drill for inspection in time.
⑥In the normal drilling process, it is necessary to adopt the method of drilling less frequently and intermittently punching, that is, after drilling 30-500mm, lift the drill bit from the bottom of the hole and blow the hole once. This can prevent wind and rock dust from clogging, and ensure the safety of construction drilling.
in conclusion
①Using screw Air Compressors and applying the development of air down-the-hole hammer drilling technology to dig wells to find water in areas with severe water shortages in western Henan. It is suitable for rapid and effective drilling in relatively complete bedrock formations, and the efficiency Higher, it shows the superiority of quickly finding water to drill wells, and drilling in extremely fractured formations needs to study and solve the problem of retaining walls in order to fully apply this technology.
②Drilling with a screw Air Compressor and an air down-the-hole hammer saves a large amount of water for mixing mud, maintenance of water pumps and other auxiliary time, improves the pure drilling time, shortens the construction period, and thus greatly reduces the cost of well completion.
③ Relying on scientific and technological progress, scientific selection and matching, construction equipment, application of new drilling technology, and new well-forming technology are important ways to vigorously develop productivity. The application in the well construction project is successful. It doubles the drilling efficiency, greatly reduces the drilling cost, significantly improves the well completion quality, and has remarkable comprehensive economic efficiency and social benefits.
