SU810906A1 - Device for formating horizontal wells - Google Patents

Description

in the zone of windows, and the length of each window of the pipe of the working body is equal to or greater than the length of the pipe of the soil transport mechanism.

FIG. 1 shows the proposed device, a general view; FIG. 2 - soil transportation mechanism; in fig. 3 - scheme of the device.

The device consists of a soil transportation mechanism 1 n of the working body 2, each of which is made in the form of a pipe 3 having discharge windows 4 with a soil divider 5 made in the form of a wedge and connected by means of an elastic connection 6 to the hammer body 7, iric soil transport mechanism 1 is installed in the inner cavity of the working body 2 and is connected with it by means of flexible communication in the form of a feeding cable 8 and a withdrawing cable 9. The feeding cable 8 is attached to the mechanism 1 by means of a bracket 10. On the inside of the pipe 3 is which body 2 is mounted a block 11, juts into the feed rope 8 which is connected at its other end with the traction drive mechanism 12.

Traction mechanism 12 is made in the form of a trailer unit, including-three winches: a traction winch 13 for winding a rope 8, moving mechanism 1 to the face, traction winch 14, moving mechanism 1 to the discharge window 4 of the working body 2, and winch 15, power cable selection 16 and mechanism control 1.

In the front (downhole) part of the mechanism 1 is equipped with a widened annular tip 17, precluding compression of the transport mechanism 1 soil during its operation inside the pipe 3 of the working body 2.

The operation of the device proceeds cyclically as follows.

Cycle I (Fig. Pros and b). The working body 2 under the action of vibro-hammer 7 implanted into the soil by a certain amount determined by the internal usable volume of the transport mechanism 1. The soil (in the form of core) under the action of inertia partially filled the bottom-hole part of the working body 2. The transport mechanism 1 pulled to the bottom hole 8, when turning on its vibratory hammer, it penetrated into the soil core and placed a large part of it in its internal cavity (Fig. 3a).

Then, under the action of the traction mechanism 12, through the cable 9, the mechanism 1 was moved to the discharge windows of the working body 2 and, when it was re-turned on, its vibrohammer moved from position A to position B. the transport mechanism 1 and the working body 2 to the outside (in the trench on both sides of the working body (Fig. 36).

Cycle II (Fig. 30, g, d). The working body 2 under the action of the impacts of the vibrating hammer again penetrated into the ground by the same magnitude as in the previous case (Fig. Ze).

The transport mechanism is again pulled back to the bottom and introduced into the soil that filled the bottom-hole part of the working body (Fig. 3g).

Then the mechanism 1 is chased away from the bottom, and shifted to the discharge windows of the working body 2 and began to unload the core through its discharge windows and the discharge windows of the working body 2 in the transom (Fig. 3d).

After unloading from the ground, the working body 2 is again inserted into the ground, starting cycle III (Fig. Ze), etc.

In the process of unloading from the soil core of the transportation mechanism, a small part of the soil, spilling out into its discharge windows, spills into the internal cavity of the working body. However, during subsequent shock movements of the working body itself, this part of the soil is poured into the trench through the discharge windows of the working body, reflecting from the splitter.

The described device is universal, as it provides the possibility of penetration of any kind and condition of the soil (except monolithic rock) from refractory clay and soils with a large number of stony inclusions to quicksands; it has high penetration rates due to the absence of auxiliary operations for welding, installation and evacuation of the soil to the surface during the penetration process (all work was performed before installing the device in the trench), as well as the absence of the need for crushing effort, which eliminates the need for powerful retaining walls and main devices.

Claims (2)

Invention Formula A device for the formation of horizontal wells in the ground, including a working body, made in the form of a pipe with discharge windows and an impact drive, as well as a mechanism for transporting soil with a pulling cable inside, in order to increase the development efficiency by reducing the time for unloading the mechanism for transporting the soil, the latter is made in the form of a pipe with windows located flush with the discharge windows of the pipe of the working body, and is equipped with an actuator Percussion movements, the working body and the soil transporting mechanism are interconnected by flexible thrust and equipped with soil dissectors installed in the window zone, and the length of each window of the working body pipe is equal to or longer than the pipe of the soil transporting mechanism. Sources of information taken into account during the examination 1. V. I. Minaev. Machines for the construction of pipelines, Nedra, Moscow, 1978, p. 242. 810906 , 6 2. USSR author's certificate No. 264062, cl. E 02D 17/146, 1968 (prototype). . k W m