RU2432448C1 - Protector for protection of power cable in well - Google Patents

Abstract

FIELD: oil and gas production. ^ SUBSTANCE: device consists of case made whole with cable channel and with central channel of dimension matching external diametre of lifting pipe, and of folding arc-shape clamping brackets one end of which is loop-like and rotates on an axis passing through loop-like bracket. On both sides the case of the protector has slots with closed contours. On one side loops are secured in slots; the loops match the loop-like brackets by means of the axis. Opposite locking slots are made with bent blades of the case from the side of the protector axis and are directed into the side of the cable channel. The second ends of the arc-shaped clamping brackets have slots and are of U-shape; when the protector is assembled, they engage the locking slots and are fixed from possible disengagement by bent blades of the case. ^ EFFECT: simplified design and reduced time for assembly and disassembly. ^ 2 cl, 3 dwg

Description

The invention relates to the oil and gas industry and can be used to protect the power cable of the pump from mechanical damage during lowering and raising the suspension of tubing with the installation of an electric centrifugal pump in vertical, directional and horizontal wells.

The well-known "Protector for protecting the power cable in the well" (see. Patent for utility model of the Russian Federation No. 90117, cl. ЕВВ 17/10, publ. 12/27/2009), comprising a housing made as a unit with a cable channel and with a central a channel with a size for the outer diameter of the tubing for fixing the tread body to the coupling connection, folding arc-shaped clamping brackets, one end of which is made with a loop-shaped end and cut through a hollow with the possibility of rotation on the axis, which passes through the loop-shaped bracket.

The reasons that impede the achievement of the following technical result when using the known device include the complexity of the design, the difficulty in manufacturing and inconvenience during installation and dismantling of the device.

The essence of the proposed tread for protecting the power cable in the well is that the tread body is equipped with grooves with closed loops on both sides, and on the one hand loops are fixed in the grooves, which are mated with loop-shaped brackets through the axis, and the opposite locking grooves are made with bent petals cases from the side of the tread axis and directed towards the cable channel.

The second ends of the arcuate clamping brackets have grooves and are made in a U-shape, which when assembled, the tread engages with the locking grooves and are fixed from possible separation by the bent petals of the housing.

The folding arcuate clamping clamps in their upper part are cut by H-shaped grooves, the ends of the grooves ending with round holes, and the brackets themselves are made with at least two wave-like elements.

The use of the invention provides the following technical result:

- simplification of design, reduction of assembly time, disassembly and installation on the tubing.

The specified technical result in the implementation of the invention is achieved by the fact that the casing is made integrally with the cable channel and with a central channel with a size equal to the outer diameter of the tubing for fixing the tread housing to the coupling connection, folding arc-shaped clamping clamps, one end of which is made with a loop end rotatably on an axis that passes through a loop-shaped bracket.

The peculiarity lies in the fact that the tread case on both sides is equipped with grooves with closed contours, and on the one hand, loops are fixed in the grooves, which, through the axis, are mated with loop-shaped brackets, and the opposite locking grooves are made with bent petals of the body from the side of the tread axis and directed towards side of the cable channel.

The second ends of the arcuate clamping brackets have grooves and are made in a U-shape, which when assembled, the tread engages with the locking grooves and are fixed from possible separation by the bent petals of the housing.

The folding arcuate clamping clamps in their upper part are cut by H-shaped grooves, the ends of the grooves ending with round holes, and the brackets themselves are made with at least two wave-like elements.

The analysis of the prior art by the applicant, including the search by patents and scientific and technical sources of information and the identification of sources containing information about analogues of the claimed invention, allowed to establish that the applicant did not find an analogue characterized by features identical to all the essential features of the claimed invention. The definition from the list of identified analogues of the prototype, as the closest in the set of essential features of the analogue, allowed us to identify the set of essential distinguishing features in relation to the applicant's technical result in the claimed invention set forth in the claims.

Therefore, the claimed invention meets the condition of "novelty."

The design of the invention is presented in figures 1-3.

Figure 1 shows the appearance of the device (top view).

Figure 2 is a side view.

Figure 3 is a section bB.

The device includes a housing 1, made as a whole with a cable channel 2 and with a central channel the size of the outer diameter of the tubing to fix the tread housing on the coupling connection. The housing 1 is equipped with grooves with closed loops 3 and locking grooves 4, made with bent petals 5 from the side of the tread axis and directed towards the cable channel. In the grooves 3, loop-shaped staples are fastened by welding 6. The folding arc-shaped clamps 7 on one side are made with a loop-shaped end 8 rotatably on the axis 9, and on the other hand are made U-shaped 10 with a groove 11. In addition, the clamping brackets 7 in their upper part, they are dissected by H-shaped grooves 12, and the ends of the grooves end with round holes 13, and the brackets themselves are made with at least two wave-like elements 14.

The device operates as follows. The tread housing 1 is mounted on the tubing string so that the folding arcuate clamping brackets 7 are located above and below the tubing coupling. To fix the tread on the NTK, the U-shaped ends of the clamping brackets 7 are inserted into the locking grooves 4, and for greater reliability, the grooves 11 are engaged with the bent petals 5. At the same time, the right part of the U-shaped end 10 of the clamping bracket 7 abuts against the edge of the locking groove 4, which prevents the spontaneous opening of the clamping bracket 7, carrying out constant compression to the bent petal 5 of the housing 1.

In the process of disassembling, the U-shaped end of the clamping brackets 7 is taken to the right, releasing the bent tab 5 from the groove 11, and then removed from the castle groove 4.

The presence of H-shaped grooves 12 and wave-like elements 14 on the arcuate clamping brackets 7 allows you to increase their elasticity and more tightly compress the tread body to the NTK.

Thus, the proposed device allows to simplify the design of the tread, to reduce the time of assembly, disassembly and installation on the tubing.

The above description indicates the fulfillment of the following set of conditions when using the claimed invention:

- a tool embodying the claimed invention, in its implementation is intended for the oil and gas industry and can be used to protect the pump power cable from mechanical damage during descent - lifting the suspension of tubing with the installation of an electric centrifugal pump in vertical, directional and horizontal wells;

- for the claimed device in the form as described in the stated claims, the possibility of its implementation using the means and methods described in the application is confirmed;

- a tool embodying the claimed invention in the implementation, is able to ensure the achievement of the perceived by the applicant of the assigned technical tasks. Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (2)

1. The protector for protecting the power cable in the well, comprising a housing made integrally with the cable channel and with a central channel with a size equal to the outer diameter of the tubing for fixing the tread housing to the coupling connection, folding arched clamping clamps, one end of which is made with a loop-shaped end rotatably on an axis that passes through a loop-shaped bracket, characterized in that the tread body on both sides is equipped with grooves with closed contours, and on the one hand in p hinges are fixed, which, through the axis, are mated with loop-shaped staples, and the opposite locking grooves are made with bent petals of the body on the tread axis side and directed towards the cable channel, in addition, the second ends of the arc-shaped clamping brackets have grooves and are made U-shaped, which when assembled, the treads mesh with the locking grooves and are secured against possible separation by the bent petals of the housing. 2. The tread according to claim 1, characterized in that the folding arcuate clamping clamps in their upper part are dissected by H-shaped grooves, the ends of the grooves ending in round holes, and the brackets themselves are made with at least two wave-like elements.

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