SU1388540A1 - Bailer - Google Patents

Abstract

The invention relates to devices for penetrating and cleaning wells from cuttings during their drilling and allows increasing the efficiency of the operation of the slug (L) and expanding the area of its application. Burova Zh contains body 1 and a knot of release of drilled cuttings in the form of a carriage (K) 2 with a shoe (B) 3 attached to it in the lower part with knife blades

Description

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Rodkami and flap in the form of elastic-. disk 12, overlapping windows B 3, stop node. It fixes body 1 relative to K 2. In the upper part of body I, guides 6 are fixed, and on K 2 there is a central rod 10 with a tip 11, with K 2 mounted on guides 6 and spring-loaded. Suspension assembly W is mounted on base 7, and shut-off assembly is installed on K 2 and is made in the form of a spring-loaded two-arm lever 13, It has a free shoulder for interacting with the rig stop. The connector between the housing 1 and B 3 is made on the conical surface with the apex of the cone pointing upwards. With blows from the bottom Z, the rock is mixed with water. This mixture wraps the disk 12 and enters the housing 1. When lifting the disk, the disk 12 overlaps the windows B 3. The levers 13 abut on K 2, which compresses the springs 9. The body 1 separates from the B 3. The clearance is unloaded from the gap. Released F lowered. 1 hp f-ly, 3 ill.

one

The invention relates to drilling, in particular to devices for drilling and cleaning wells from sludge.

The purpose of the invention. is to increase work efficiency and expand the scope.

Figure 1 shows the brown forest, general view; FIG. 2 is a view A of FIG. 1; on fig.Z - view B in figure 1. . Burovskaya Zhelonka contains a cylindrical body I (figure 1) and a discharge unit for cutting out cuttings associated with it in the lower part, made in the form of a carriage 2 with a shoe 3 fixed on it with knife partitions 4 (figure 2) crossing the shoe window 5; guides 6 are fixed to the upper part of the core 1 with a base 7, on which the assembly 8 of the suspension of the drilling bit is mounted. The carriage 2 is mounted on the guides 6 and is spring-loaded relative to the housing 1 by means of springs 9. The carriage 2 is fixed to the central rod 10 with the tip 11. With the help of the tip 11, the shoe 3 and the valve, made in the form of an elastic disc 12, are fixed on the central rod. The locking assembly is mounted on the carriage 2 and is made in the form of a spring-loaded two-arm lever 13 having a free shoulder for interacting with the stop of the drilling rig (Fig. 3) mounted on the axis 14 and locking the housing 1 through the base 7 and the guides 6 relative on the carriage 2. The connector 15 between the housing 1 and Bashmilah

com 3 is made on a conical surface with the top of the cone directed upwards.

Burovskaya Zhelonka works as follows.

When striking the bottom of a drilling hole with a tip 11, a shoe 3 and partitions 4, it performs grinding, intensive loosening and effective mixing of the rock with water in the well, turning it into a water-shallow mixture. At the same time, when striking the face, the water-shredded mixture wraps the resilient elastic disc 12 and through the windows 5 enters the body 1 of the drill bit. When lifting the drill bit, the resilient elastic disc (valve) 12 restores the BATTLE shape by biting the window 5. After filling the drill bit with the drill rock, it is lifted from the well to the surface.

Removed from the borehole, the shell is retracted from the well and lifted upwards. The fixed stop (its conditionally shown by arrows in FIG. 1) acts on the spring-loaded levers 13, turns them around the axes 14, abutting the carriage 2. As the body 1 continues to lift, the carriage 2 slides along the guides 6, compressing the springs 9. Origin, Dit separates body 1 from shoe 3

and discharge of cuttings is carried out into the gap between them. At the same time, the elastic disk (valve) 12 of the yolk and the over-valve space are also freed from the rock due to this.

that the housing connector 1 with the shoe 3 is made under the valve.

The conical surface of the connector .15 provides not only a better centering of the shoe 3 relative to the housing 1, but also contributes to a better cleaning of the surface of the connector 15 from the cutting out of the cuttings.

The scraper released from rock drill is lowered down, the springs 9 are unclenched until the conical surfaces of the housing 1 and the shoe 3 come into contact. The arms 13 released from the stops rotate on the axles 14, return to their original position and firmly fix the base 7 relative to the carriage 2.

Claims (2)

1. Burovaya Zhelonka, containing the body and the knotted drilling outlet unit associated with it in the lower part, made in the form of a carriage with a shoe with knife partitions attached to it, with a valve crossing the shoe window, a suspension unit and a locking node fixing the body relative to the carriage, characterized in that, in order to increase the working efficiency and expand the field of application, it is provided with guides with a base fixed in the upper part of the body and a central bar with Q with a tip attached to the carriage, the latter being mounted on the guides and spring-loaded relative to the housing, and the locking assembly is mounted on the carriage J and is made in the form of a spring-loaded two-arm lever having a free shoulder for interacting with the rig stop, while the suspension unit is mounted on the base of the research institute, and the valve is made in the form of an elastic disk and is fixed with a boot to the central rod by means of a tip. 2. The bilge cusp according to claim 1, wherein the connector between the housing and the shoe is made along a tapered surface with the tip of the cone pointing upwards. Visa FIG. 2 12 P F14 9.3