What is the method of using a three body water drill bit?

A three body water drill bit is a commonly used drilling tool in oil well drilling, whose main function is to extract rock or soil from the formation during downhole drilling. The following will provide a detailed introduction to the usage of the three body water drill bit.

At first, the normal use of three body water drill bits relied on drilling equipment, such as drilling rigs, drill rods, drill collars, etc. Before starting to use, it is necessary to assemble the drill pipe and fix the drill bit to ensure that the drill bit can smoothly enter the wellbore for drilling work.

Then, at the beginning of drilling work, it is necessary to first select the appropriate type of drill bit. According to the structure and requirements of the formation, different types and sizes of drill bits can be selected. In general, three body water drills are often used for drilling soft soil or soft rock formations.

Next, slowly lower the assembled drill rod and drill bit into the wellbore through the drilling rig. During the process of lowering, it is necessary to maintain the stability of the drill pipe to avoid twisting or other damage. By controlling the drilling rig, the speed and force of the drill bit can be controlled to gradually enter the formation.

After the drill bit enters the formation, it needs to start rotating the drill rod to rotate the drill bit underground. The purpose of rotating a drill bit is to break the formation and drill it out through the cutting structure on the drill bit. At the same time, drilling fluid is transported to the drill bit through the drill pipe, lubricating the drill bit, and timely flushing out the cuttings in the formation.

During the drilling process, it is necessary to adjust the speed and force of the rotating drill bit according to the geological conditions. If the formation is hard, the rotational force can be appropriately increased; If the formation is soft, it is necessary to reduce the rotational force. By adjusting the rotational force, the drill bit can better adapt to different geological conditions and improve drilling efficiency.

While the drill bit rotates, it also needs to continuously transport drilling fluid underground to maintain the cooling and lubrication of the drill bit and drill pipe. The transportation of drilling fluid can be achieved through the hollow space in the drill pipe, as well as through pipelines and pumping systems. Drilling fluid not only needs to meet the requirements of cooling and lubrication, but also has the function of suspending and flushing chips.

Next, the drill bit continues to drill underground until it reaches the required depth or obtains satisfactory formation samples. During the drilling process, it is necessary to continuously observe the working status of the drill bit, especially the wear of the cutting structure of the drill bit. If severe wear is found on the drill bit, it needs to be replaced in a timely manner.

In addition, after the drilling work is completed, it is necessary to lift the drill bit as a whole to the wellhead, disassemble and clean it. When disassembling the drill bit, attention should be paid to removing each component one by one, cleaning and checking for any damage or wear. If necessary, the drill bit can be repaired and maintained to ensure normal operation during the next use.

In summary, the use of three body water drill bits mainly includes selecting the appropriate type of drill bit, slowly lowering the drill bit underground through the drilling rig, rotating the drill bit, conveying drilling fluid, observing the status of the drill bit, replacing worn drill bits in a timely manner, and dismantling and cleaning the drill bit. Only by using the three body water drill bit correctly can the smooth drilling of oil wells be ensured.