Abstract: The installation for cleaning the zone near the drill hole contains a hollow body (1) in which is arranged a subassembly for generating hydrodynamic waves that is designed in the form of a turbulence chamber (3) that has, arranged tangentially in its upper part, entry channels (4) with which the subassembly is connected to the cavity of the body (1). The outlet channel (5) of the turbulence chamber (3) is designed with a conical taper.

Abstract: The drilling apparatus according to the invention contains a body (1) to which rock-destroying organs--rollers (2) are attached. A subassembly for generating hydrodynamic waves is arranged in the body (1). This subassembly is designed in the form of a turbulence chamber (3) with tangentially arranged entry channels (4) and with a conically tapering outlet channel (5) the frontal surface of which is radially rounded off.

Abstract: The drilling apparatus according to the invention contains a body (1) and rock-destroying organs (3) of the cutting and shearing type that are attached to the matrix (2) of the body. The body (1) is provided with a turbulence chamber (4) with tangentially aligned entry channels (5) and a central outlet channel (6). Tangentially arranged outlet channels (9) are designed in the lower part of the body (1). The part of the matrix (2) closest to the body (1) is designed in the form of a hollow truncated cone with its top surface (12) turned toward the body (1). The sphere is designed with a changing slope of the generatrices (10) of the conical surface and with the bottom surface (11) and the top surface (12) designed according to the Archimedean spiral. On the lateral surface of the matrix (2) there are continuous radial grooves (13) that are connected to the outlet channels (9) by a cavity (14) designed in the body (1).