SU899912A1 - Unit for underground drilling of wells - Google Patents

Description

(54) INSTALLATION FOR UNDERGROUND DRILLING WELLS

one

The invention relates to the mining industry, in particular, to the installation of a well drilling rig in underground conditions 1x.

Known for drilling, including a rotator, electric motor, gearbox, feed mechanism 1.

The disadvantages of this installation are the limited length of drilled wells, low drilling rate, complexity and intensity of construction.

The closest in technical essence and the achieved result is an installation for underground drilling of wells, including a turbine-type drilling rig, a carriage, rollers, a hinge of a drilling rig, a control cable system with a winch and a pressure pump 2.

However, in a known installation, the placement of an electric or pneumatic motor in a well requires large cross-sectional dimensions. In addition, such design of the actuator and drill rods does not provide drilling of wells in a given direction, and the lack of means for transporting drilling mud through the well does not allow them to be drilled in the horizontal and downward directions. Placing a pneumatic engine close to the bottom of a well can cause an explosive concentration of methane to form in it, and the use of an electric motor requires

5 communications to cool it downhole.

The purpose of the invention is to ensure the orientation and increase of drilling efficiency due to the possibility of long

, 0 directional wells at any angle.

The goal is achieved by the fact that the drilling rig is placed in the carriage, which is made in the form of a trough, while on this carriage an arc is mounted on which the rollers are placed.

15

In addition, the drill, the carriage and the drill are fastened with a hinge.

FIG. 1 shows a drilling pattern for underground drilling of wells with a turbine unit; in fig. 2 - section

20A-A in FIG. one; in fig. 3 is a schematic of the location of a drilling rig in a mine working.

Claims (2)

A drill for underground drilling of long directional wells contains a hydroturbine 1, which causes the roller bit 2 to rotate and the cutting and grinding body 3 rotate. Hydraulic turbine 1 is hinged to the tail part of the carriage, which is designed as a groove 4, through its axis 5. With the help of this axis 5, a drilling mill 7 is fixed to the tail section of the drill string and carriage 4 by means of an articulated fork 6. The carriage 4 is exposed to the running rollers 8, and they are located radially on a special arc 9. This eliminates the possibility of displacement eni the carriage 4 with the drilling projectile inserted into it from the axis of a given well. The turbine 1 is connected with the drilling mill 7 by means of a flexible hose 10. The drilling projectile with the cutting and grinding body 3 and the bit 2 on the bottom is fed using a cable system 11, in which one end is fixed on the winch drum 12 and the second - on the dynamometer 13. The bottom of the drill string is carried out by pulling the rope with a winch for 12 hours. The tension force in the cable 11 is controlled by the dynamometer 13. The cable rollers are used to create the required force for the bottom 14. The working fluid is supplied These pumps are carried out by pumps 15 through flexible hoses 16. The installation is operated as follows. The flow of flushing fluid supplied by the pumps 15 to the drilling stand to the turbine, sets it in motion, and the latter in turn rotates the bit 3 and the cutting and grinding body 3. When creating a forced axial load by the cable system 14 on the axis of the drill rod, the sharpen bit 2 cuts into the mountain mass and shears it off. The flow of the crushed fluid under pressure hits the bottom of the well and the bit 2 and thereby cleans the bottom of the drill cuttings, flushing and cooling the bit 2. The drilled mass is transferred under the cutting and grinding body 3 and further to the wellhead. After drilling a well to a predetermined depth, the projectile is displaced by a predetermined amount and the cycle is repeated. When creating an axial load on the face on the case of the turbo-drill 1, a moment will develop that is equal in magnitude to the active moment, but with the opposite sign. This active moment is quenched in the joint system. Thus, when drilling a borehole, regardless of the axial loads and various deflecting forces, the drill moves in a given direction. The direction is set at the wellhead using a special flow, set at a given angle (Fig. 2). The installation can be used in any mine workings for drilling both horizontal and inclined long wells over rocks of different strengths. Under the same drilling conditions, the proposed installation will allow an increase in the drilling rate. In a turbodrill drive, the drive energy is water, allowing the unit to be used on seams, prone to coal and gas emissions. The distance from the control panel to the danger zone can be taken practically any, ensuring the safety of the staff. 1. Installation for underground drilling of wells, including a turbine drilling rig, a roller carriage, a hinge, a drilling rig, a winding control system with a winch and a pressure pump, characterized in that, in order to ensure the direction of drilling, the drill rig placed in the carriage, which is made in the form of a gutter, while on the specified carriage an arc is mounted on which the rollers are placed. 2. The installation according to claim 1, characterized in that the drill rim, the carriage and the drill stand are fastened jointly. Sources of information taken into account in the examination 1. Burov installation BIP-2, the Central Bureau of Scientific and Technical Information of the USSR Ministry of Coal Industry. Donetsk, 1972. 2.Bratchenko B.F. Machines and equipment for horizontal and inclined mine workings. M., “Nedra, 1975 p. 133-138, (prototype). /////// /// ////// //. % f // 7 // C / 7 /// 7 /////////////// A (/// X // A (/////// X ///  L 1- «V V V //////////////////// at ///////////////////////////// ///////////////// /(-BUT