RU-2024133105-A - Method of drilling a water well

Inventors

• Лесь Иван Валериевич
• БУЖЕНКО ИГОРЬ ВИКТОРОВИЧ

Assignees

• Лесь Иван Валериевич

Dates

Publication Date

20260504

Application Date

20241102

Claims (1)

1. A method of drilling a water-bearing well, including lowering a device into the well that drills the well, opening the aquifer of the well, characterized in that the well is drilled to a calculated depth for a casing pipe of a larger diameter using an assembly consisting of drill pipes and a cutter, the rotation of which is carried out by rotating the drill pipes, which rotate from a rotor located at the wellhead, lowering the casing pipe of a larger diameter and landing it, after which the assembly is raised to the wellhead and feeding the calculated amount of cement slurry into the casing pipe of a larger diameter, followed by forcing the cement slurry with a process fluid through the bottom of the casing pipe of a larger diameter into the gap between the casing pipe of a larger diameter and the wall of the well, lowering into the cavity of the casing pipe of a larger diameter a drill pipe with a device that drills the well, including a downhole motor with a cutter and connected to the drilling pipe, a well is drilled to a calculated depth using a cutter of a well drilling device, the screw downhole motor of which drives the cutter, a pipe of a smaller diameter is lowered into the cavity of a casing pipe of a larger diameter and the pipe of a smaller diameter is seated in the well, the calculated amount of cement slurry is supplied into the pipe of a smaller diameter, followed by forcing the cement slurry through the bottom of the pipe of a smaller diameter into the gap between the pipe of a smaller diameter and the wall of the well with the process fluid, after the cement slurry has hardened, a drill pipe with a device for drilling the well is lowered into the cavity of the pipe of a smaller diameter, followed by drilling the well by the device for drilling the well to a calculated depth with the possibility of reverse flushing, wherein the process of drilling the well is alternated with the process of flushing the well without lifting the device for drilling the well, carrying out a cyclic process consisting of at least one cycle, which includes the drilling process wells with subsequent flushing of the well from drilled rock particles by supplying process fluid under the calculated pressure from the wellhead until the aquifer of the well is opened and reducing the risks of incomplete well flushing and failure to lower the casing due to poor-quality washing of the drilled rock from the well, while the number of cycles is determined based on the size of the well depth, the calculated pressure of the process fluid supply is determined based on the parameters of the well and the depth of the device in the well that drills the well, during the drilling of the well, the process fluid is supplied into the cavity of the drill pipe with the device that drills the well, for rotating the cutter by means of a downhole motor without using a rotor located at the wellhead and rotation of the drill pipes, and drilling of the well is carried out during the calculated time or to the calculated depth, during the well flushing process, the process fluid is supplied to the space between the drill pipe and a pipe of a smaller diameter or a casing pipe of a larger diameter during the calculated time for the removal of drilled rock particles from the well to the surface of the wellhead through the cavity of the drill pipes.