RU194427U1 - Pipe conduit device for downhole equipment - Google Patents

Abstract

The invention relates to devices for laying, wiring, operating, repairing or disassembling power cables and power lines, in particular to devices for external protection of downhole equipment supply cables. A pipe conduit device for downhole equipment includes one conduit pipe with a round conduit duct . The conduit pipe is made long enough to be located between the well and the terminal box. The conduit pipe is equipped at one end with a tap made to tightly interact with the cable outlet from the well, and at the other end with a screw nut for tight and rigid connection with the cable outlet from the terminal box. The cable exit from the terminal box can be made in the form of a hole in the vertical box of the terminal box support, configured to interact from below with the conduit pipe. The screw is configured to connect the vertical duct to the second end of the conduit pipe when screwed into the nut. The cable exit from the terminal box can also be made in the form of a pipe with an outlet for entering into the second end of the conduit pipe, which is made of a team consisting of two parts that are connected rigidly after installation of the end to end. The screw is designed to connect the pipe to the second end of the conduit pipe when screwed into the nut. The proposed conduit pipe conduit device for downhole equipment simply and reliably protects the cables from mechanical stress along the entire length, including the input and output sections of the end fixed bends. 2 s.p. f-ly, 2 ill.

Description

The invention relates to devices for laying, wiring, operating, repairing or disassembling power cables and power lines, in particular to devices for external protection of supply cables of downhole equipment.

Known conduit device with at least one conduit pipe made of thermoplastic plastic (patent RU No. 2128389, IPC H02G 3/04, H02G 1/08, H02G 9/06, publ. 03/27/1999) having a conduit channel with a round inner diameter a wall of radius r corresponding to the inner radius of the pipe, and sliding ribs made of pipe material, distributed around the circumference of the inner wall of the channel at equal distance from each other and located in a wave-like manner with the formation of reversible zones between sections with a constant angle of rotation a width of the contact surfaces b, formed in a rectilinear Conduit pipe between the sliding ribs and the cable sheath administered at their contact, wherein the modified tilt angle in radians sliding ribs g satisfies the relation:

g = ra / L _k

and lies in the range of 0.001 - 1.2 rad .; r - 12 - 100 mm; L _to - the length of the contact sections of the ribs between the reversing zones, component 500 - 10000 mm,

wherein A • r = 0.16 b ² Z • L _k or when performed between sections with a constant angle of rotation of connecting sections of length L _v in which the sliding ribs occur parallel to the axis of the pipe,

A • r = -0.16 b ² • Z • (0.0003r ² • a ² + L ² _K ) ^1/2 -4L _v br,

where A is the contact surface of the cable sheath at the point of intersection with the sliding ribs, comprising 4.5 - 32 mm ² ;

Z is the number of sliding ribs,

wherein the input cables have an outer radius of 5 to 45 mm.

The disadvantages of this device are the complexity of manufacturing, protection of the input and output sections of the cables and weak healed from mechanical stress.

Also known is a cable protective tube for accommodating cables (patent RU No. 2570352, IPC H02G 3/04, published on December 10, 2015 in Bull. No. 34), such as electrical wires, fiber optic cables or optical fibers containing two pipe segments, which in the open state prior to installation, they have free connecting edges and are adapted to be transferred from the pre-installation state to the mounting final state, in which the connecting edges are joined together to form a closed cable protective pipe, the cable protective pipe containing Vision segment connecting two pipe joint which guides the low edge along a predetermined path of rotation in the mounting end state, the rotation of the pipe segments is carried out by plastic deformation of hinges.

The disadvantages of this protection are the complexity of manufacturing, protection of the input and output sections of the cables and weak healed from mechanical stress.

A cable device comprising at least one conduit pipe (patent RU No. 2024138, IPC H02G 3/04, publ. 11/30/1994) made of thermoplastic plastic with a round conduit channel with sliding ribs running parallel to each other on the inner wall, which have slip zones made in the form of helical lines with the opposite direction of winding, passing when the inner wall of the channel is deployed in the form of a series of waves, the wavelength of a series of waves being 80 - 160 cm and the waves have an amplitude of less than 1/4 in the early perimeter of the conduit.

The disadvantages of this device are the complexity of manufacturing, protection of the input and output sections of the cables and weak healed from mechanical stress.

The technical alleged utility model is the creation of a simple design of a conduit conduit device for downhole equipment with fixed end bends and reliable protection of the cable from mechanical stress along the entire length, including input and output sections.

The technical problem is solved by a pipe conduit device for connecting downhole equipment, including one conduit pipe with a round conduit channel in cross section.

What's new is that the conduit pipe is made long enough to be located between the well and the terminal box, and the conduit pipe is equipped with a tap at one end that is able to tightly engage in the cable outlet from the well, and at the other end, a detachable connection that is tight and a hard connection to the cable exit from the terminal box.

Also new is the fact that the cable outlet from the terminal box is made in the form of a hole in the terminal box, configured to interact from below with a conduit pipe equipped with a screw nut, which is configured to connect the terminal box to the second end of the conduit pipe when screwed into the nut.

Also new is the fact that the cable outlet from the terminal box is made in the form of a pipe with an outlet for entering into the second end of the conduit pipe with a screw nut, and the conduit pipe is made of a team consisting of two parts that are rigidly connected after installation of the end to end, while the screw is configured to connect the pipe to the second end of the conduit pipe when screwed into the nut.

In FIG. 1 shows a diagram of a device in which the cable outlet from the terminal box is made in the form of an opening in the terminal box, for example, in a vertical support box.

In FIG. 2 shows a diagram of a device in which the cable outlet from the terminal box is made in the form of an opening in a vertical box of a terminal box support.

The conduit pipe conduit device for downhole equipment includes one conduit pipe 1 (FIGS. 1 and 2) with a conduit channel 2 round in cross section. The conduit pipe 1 is made with a length L sufficient to be located between the well 3 (shown conditionally) and the terminal box 4 (shown conditionally). The conduit pipe 1 is equipped at one end with a tap 5 made with the possibility of tight interaction with the terminal 6 of the cable 7 from the well 3, and at the other end with a nut 8 (shown conditionally) for a screw 9 for a dense and rigid detachable, if necessary, connection to the cable output 10 7 from terminal box 4.

The output 10 (Fig. 1) of the cable 7 from the terminal box 4 can be made in the form of a hole 10 'in the vertical box 11 of the support 12 of the terminal box 4. The vertical box 11 of the support 12 is configured to interact with the stop 13 from the bottom with the conduit pipe 1. Screw 9 made with the possibility of connecting the stop 13 of the vertical duct 11 with the second end of the conduit pipe 1 when screwed into the nut 8.

The output 10 (Fig. 2) of the cable 7 from the terminal box 4 can be made in the form of a pipe 10 ”with an output 14 for entering into the second end of the conduit pipe 1. The conduit pipe 1 can be made of a team consisting of two parts 15 and 16, connected rigidly after installation, the end to end (for example, a sleeve 17, welding, quick-detachable connection, etc. - not shown). The screw 9 is made with the possibility of connecting the output 14 of the pipe 10 ”with the second end of the conduit pipe 1 when screwed into the nut 8.

Structural details and technological connections that do not affect the operability of the device, in FIG. 1 and 2 are not shown or shown conventionally. The screw 9 to exclude unauthorized access can be equipped with a special head (shown in Fig. 1 and 2 conditionally) under a special puller (not shown). The authors do not pretend to look at the head and design of the puller.

Installation of conduit device for downhole equipment is carried out in the following sequence.

For each well 3 (FIGS. 1 and 2), a conduit pipe 1 of length L is sufficient to be positioned between the well 3 and the terminal box 4. A conduit pipe 1 is equipped at one end with a tap 5.

Example 1

The cable 7 (Fig. 1) of the downhole equipment, leaving the well 3 through terminal 7, is passed through branch 5 and conduit channel 2 to the second end of conduit pipe 1. Branch 5 is tightly mounted on terminal 6, and cable 7 is inserted into the hole 10 'of the vertical the box 11 of the support 12 and further into the terminal box 4, in which the ends of the cable 7 are attached to the corresponding terminals (not shown). The second end of the conduit pipe 1 is mounted on the stop 13 end-to-end with the box 11, and the screw 9 is screwed into the nut 8 with the connection emphasis 13 of the support 12 with the second end of the conduit bottom of the pipe 1.

Example 2

The cable 7 (Fig. 2), leaving the well 3 through terminal 6, is passed through outlet 5 and the conduit channel 2 through parts 15 and 16 to the second end of the conduit pipe 1. Branch 5 is tightly mounted on terminal 6, and cable 7 is inserted into the outlet 14 of the 10 ”pipe and then to the terminal box 4, in which the ends of the cable 7 are attached to the corresponding terminals (not shown). The second end of the conduit pipe 1 is inserted into the output 14 of the 10” pipe. The screw 9 is screwed into the nut 8 with a preliminary connection of the pipe 10 to the second end of the conduit pipe 1. Parts 15 and 16 are joined end-to-end and fixed, for example, with a sleeve 17, after which the screw 9 is finally tightened in the nut 8.

As a result, the simple design of the pipe conduit device for downhole equipment reliably protects the cable 7 (Fig. 1 and 2) along the entire length from the well 3 to the terminal box 4.

The proposed pipe conduit device for downhole equipment simply and reliably protects the cable from mechanical stress along the entire length, including the input and output sections of the end fixed bends.

Claims (3)

1. Pipe conduit device for connecting downhole equipment, including one conduit pipe with a round conduit channel, characterized in that the conduit is made long enough to be located between the well and the terminal box, and the conduit pipe is equipped at one end with a tap made with the possibility of tight interaction in the cable outlet from the well, and on the second, with a detachable connection made with the possibility of dense and rigid soy Inonii the cable exiting the terminal box. 2. Pipe conduit device for connecting downhole equipment according to claim 1, characterized in that the cable outlet from the terminal box is made in the form of an opening in the terminal box, configured to interact from below with a conduit pipe equipped with a screw nut, which is made with the possibility of connection terminal box with the second end of the conduit pipe when screwed into the nut. 3. The pipe conduit device for connecting downhole equipment according to claim 1, characterized in that the cable outlet from the terminal box is made in the form of a pipe with an outlet for entering into the second end of the conduit pipe with a screw nut, and the conduit pipe is made of a team consisting of two parts connected rigidly after installing the end to end, while the screw is made with the possibility of connecting the pipe with the second end of the conduit pipe when screwed into the nut.

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