SU973831A1 - Apparatus for driving wells through outburst-hazardous coal seam - Google Patents

Description

(54) DEVICE FOR DRIVING WELLS IN A COAL RELIABLE LAYER

one

The invention relates to drilling and blasting operations and can be used in mines when conducting wells through a coal outburst.

A device for drilling wells in a coal seam is known, which includes a drilling rig, on the casing of which radial support elements are mounted eccentrically relative to the axis of rotation of the crown, as well as internal and external drill stands 1.

A significant disadvantage of this device is the impossibility of drilling wells through outburst formations due to the clamping of the drilling tool and coal on the side of the free planes of the well, as well as the possibility of gas emissions.

Closest to the invention, a device for drilling wells through a coal outburst formation, containing an executive body made in the form of a conical shaped tip, mounted with the possibility of axial movement, a reciprocating moving pusher and an interception mechanism. Such a device eliminates the drawbacks of devices that involve fracturing the reservoir, since it works on the principle of compacting an array around the free planes of wells 2.

However, it is not used for penetrating the coal seam due to the fact that new sections must be screwed in to feed the tip to the depth, for which it is necessary to stop the actuator, which drastically reduces the productivity of the process.

The purpose of the invention is to increase the productivity of wells through the implementation of it in continuous mode.

This goal is achieved by the fact that in 5 a device for drilling wells through a coal outburst layer containing an executive body made in the form of a conical shaped tip, mounted for axial movement, reciprocatingly moving 20 with a pusher and an interception mechanism, the tip of the executive body is fixed on the rope with cylindrical sections loosely attached to it, while the rope with sections is clamped in the grips of the fixedly mounted intercepting mechanism and the pusher.

The drawing shows the described device, a General view.

It consists of an executive body, made in the form of a cone-shaped tip 1 and cylindrical sections 2, loosely mounted on a steel cable 3. pusher 4, connected to the rods of hydraulic cylinders 5, interception 6, guide 7 and spring gripper 8.

The proposed device operates as follows.

The device is installed against the mouth of a future well and released by one of the known methods. From below, through the guide 7 of the plant and the executive body so that the conical tip 1 exits through the lock of the pusher 4 and the interception 6 in contact with the massive coal seam. Then, hydraulic cylinders 5 are activated, the rods of which communicate reciprocating movement to the pusher 4. When moving to an array of coal, the pushing pusher picks up the cone tip 1 under the lower plane of the section 2 and inserts the cone tip 1 into the array, while at the downward movement the intercept 6 and the spring gripper 8 clamp the actuator to prevent it from lowering.

When extracting from the solid coal of the executive body, the locks of the pusher 4 and the interception 6 are reversed, in which the reciprocating movement of the pusher 4 ensures the movement of the executive body in the opposite direction, i.e. from an array of coal seam.

The presence of cylindrical sections, freely placed on attached to

The conical tip of the rope allows to significantly increase the production of penetration and expands the possibilities of wide use of devices working on the principle of compacting the array in the coal-mining industry, practically eliminates the release of rock and gases from the well, and the clamping of the tool and stava

Formulas and: utterance

A device for drilling wells through a coal outburst ii; iacTy, containing test1);

and in the form of a conical shaped barrel, mounted with the possibility of oceBoio displacement, a reciprocating post-moving device and a intercepting mechanism, characterized in that

in order to perform well drilling performance due to its implementation in continuous mode, the tip of the executive body is fixed on the rope with cylindrical sections freely attached to it, while the rope with sections

clamped in the grips of a fixedly mounted interception and pusher mechanism.

Sources of information taken into account in the examination

1. Author's certificate SSS.R No. 221615, cl. E 21 S, 1966.

2. Poltavtsev I. C. j. Orlov V. B., L Khovich I. F. Special earth-moving machines and mechanisms for urban construction. Kiev, Budivelnik, 1977, p. 56, fig. 14 (prototype).

Claims (1)

Claim A device for drilling wells in a coal-seam hazardous formation, comprising an actuator ¹⁵ made in the form of a conical tip, mounted with the possibility of axial movement, reciprocating pusher and interception mechanism, characterized in that, in order to 2o increase the productivity of well drilling due to its implementation in continuous mode, the tip of the executive body is fixed on the rope with cylindrical sections freely put on it, while the rope with sections 25 clamped in the grips of a motionlessly installed interception mechanism and pusher.