SU1357544A1 - Plugging tool - Google Patents

Abstract

The invention relates to a drilling technique and allows to increase the efficiency and quality of tamping of the zones of degradation and to improve im penetration. The snard includes an outer tube 6, a crown, a trowel element, and a container 1 with holes 14, filled with a taping material. (TM). In its cavity is placed the norn (P), and in the upper part - the spring-loaded sliding sleeve. The crown has an annular groove 15 inside and a hinged bottom 4, reinforced with carbide cutters from the outside. The bottom 4 is inside and the P 3 is provided with retainers, which are connected in the position of mashing the bottom 4 with P 3 and 11 with a crown. The bottom retainer 4 is made in the form of a pin 18 on the inner surface, which interacts with the front face grooves 19, made on the lateral surface of the P 3. The stop pin P 3 is made in the form of an expanding ring and interacts with the groove 15. During the operation, the cleaning solution serves under the crown. Rinse the zone of collapse, drop the ball 20 and again serve the liquid. The bushing is lowered, blocking the holes 14 and opening the holes 13. The liquid displaces the AND 3 down. Bottom 4 is opened, and the TAA is fed to the subsurface. The fluid supply is produced until the P 3 and the bottom 4 are fixed. As a result, they form a trowel element. Next, heat and inject TM into the absorption zone. 2 hp f-ly, 5 ill. se (O d I SO SP JV 4; 4 fS -19

Description

The invention relates to drilling technology and is intended to isolate the absorption zones of washing fluid and water inflows.

The aim of the invention is to improve the efficiency and quality of plugging of the zones of collapse and to improve penetration of the zone of collapse.

FIG. 1 but a device with a custom-made material, available; in fig. 2 - the same, in the position for mashing; in fig. 3 - section A-A in FIG. 2; in fig. 4 is a view B in FIG. one; in fig. 5 is a view of B in FIG. 2

The tonnage projectile consists of a container 1 with a tampon material 1. limited by a pair 1 with a latch and a hinged hinged bottom 4, with a latch that interacts with the crown 5 installed on the outer pipe 6. The locks 3 and the hinged bottom 4 between each B position for rubbing a folding bottom with a straight pipe and a piston with a crown, respectively, forming a trowel element.

The container 1 is made with a thread 7 and a thickened part 8, which in turn is mounted on the outer pipe 6 by means of a threaded joint 9.

In the internal channel of the upper part 8 of the container 1 there is a spring-loaded sleeve Slide sleeve 10 with a spring 1 and a screw cap 12.

In the upper part 8 of container 1, holes 13 and 14 are made.

The holes 13 communicate the discharge line with a bit above the piston 3, and the holes 14 - overpressure,) {{th .. mag. With a single hole between the outer pipe 6 and the container I. Subsurfaced slip sleeve 10 is installed with the possibility of blocking alternately one of holes 13 silt and 14.

The latch por1nn vypolpen in the form made on the inner surface of the crown 5 of the annular groove 15 and the expanding ring 16, interacting with each other.

A hinged hinged 4, reinforced with carbide cutters with CTOpoiHJ, is fixed with a carved element 17, and the hinged bottom fixture is made in B1-1.e key 18 on its inner surface, which interacts with the ends on the lateral surface of por1nn 3 w; 1; grooves 19.

The internal channel of the slider sleeve I) is blocked by a drop ball 20.

Cement sludge d works as follows.

The device is lowered on a string of drill pipes (not shown) connected to the upper part 8 of the container 1 to the upper boundary of the landslide, after which the flushing fluid is pumped through the internal channel of the part 8 of the container 1, holes 14, tube

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ny annular gap of the container 1 and the pipe 6 under the crown 5 with a fixed hinged bottom 4.

By rotating the projectile (solid bottom), the zone of collapse is drilled to the bottom of the well. Then, drilling and nodach of the flushing fluid are stopped, the ball 20 is dropped, and the flushing fluid is resumed, under the action of which the slide 10 of the sleeve 10 with the central channel blocked shifts to the lower position, blocking the aperture 14 and opening the opening 13 through which the flushing fluid rushes into the cavity above poroshem 3.

Under the action of the washing liquid, the porous 3 is mixed down, the pressure of the plugging material is cut off by cutting off the element 17, the folding hinged bottom 4 opens, thereby providing a nodach of all the supplied plugging material to the absorption zone.

The supply of washing liquid is made before fixing 3 by means of an expanding ring 16 in the annular groove 15 of the crown 5, as evidenced by an increase in pressure in the discharge line.

The piston 3 is fixed by inserting the hinge 18 of the hinged bottom 4 into the H1 face grooves 19, and the coupling of them to each other is ensured by the interaction of the mating surfaces. Resulting in a piston with a folding bottom form a grouting element.

By rotating the projectile, while simultaneously pacing it, the heating of the plugging mixture into the absorbed horizon is carried out and B1.

Claims (3)

1.Tamping plug, including outer tube, crown, trowel element, container with plugging material and nopnjeHb in the container cavity, characterized in that, in order to increase the efficiency and quality of plugging in the collapse zones, the crown is equipped with a hinged bottom reinforced with carbide cutters with an outer the sides, in this case the flap bottom on the inner side and the piston have clamps connecting each other in the position for mashing the flap bottom with the nopnj-n piston and the crown, respectively. 2. A hose according to claim 1, characterized by the fact that the hinged bottom retainer is made in the form of a shnonka on the inner surface, which interacts with slotted grooves on the side surface of the piston, and the piston retainer is made in the form of an expanding ring that interacts with on the inner surface of the crown of the annular groove. 3. A gear according to claim 1, characterized in that, in order to increase penetration in the area of the hoop e1 and, it is provided with The upper part of the container has a spring-loaded sliding sleeve, holes are made in the container, some of which communicate a discharge line with a cavity between the outer tube and the container, and others - with a supra-cavity, while the sliding sleeve is installed with the possibility of blocking one of the holes. Rig. 3 Type S FIG. five