RU2527094C1 - Protectoliser for protection of power extension cable in well - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: protectoliser consists of a two-component case and detachable tool joint with fastening elements. The two-component case consists of the articulated case with a cable duct and a bracket designed for setting both at cylindrical and hexagonal part of a pump neck. Besides, the protectoliser case and bracket are equipped with replaceable wearproof supports fixed in the bracket by locking rings thus allowing change in coupling size of the protectoliser for the pump neck. The protectoliser case in the cable duct is equipped with a compensating support for regulation of the slot size. The detachable tool joint is made as a hinged bolt and a nut with spring lock to prevent uncontrolled turning off.

EFFECT: improving universality and reliability of the protectoliser fixation at the pump neck.

2 cl, 5 dwg

Description

The invention relates to 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.

A protectorizer is known for protecting a cable extension of a submersible pumping station ESP (see Patent for the invention of the Russian Federation No. 2313652. CL. EV 17/02. Publish. 12/27/2007), comprising a two-part case, consisting of a lid and a grip articulated to each other, detachable lock connection with fasteners and protective collar. The case of the protector is made with the possibility of landing both on the cylindrical and on the hexagonal neck of the pump base and hydroprotection. The protective collar is mounted on the cover with screws with a radial clearance, which ensures the fixation of the cable extension of various cross sections from longitudinal movement.

The reasons that impede the achievement of the technical result indicated below when using the known device include the fact that a screw with a spring washer connecting the two-part case to each other does not provide reliable fastening of the protector parts, and the screws of the protective clamp made with a radial clearance do not provide reliable fastening cable to the case of the protector.

A protector for protecting a power cable in a well is known (see Utility Model Certificate of the Russian Federation No. 63844. Cl. EV21/10. Publ. 10.06.2007) containing a housing made with a cable channel mounted on a sleeve connection of a tubing through the installation ring, open grooves are made on the edges of the housing for interaction with the lower end of the coupling connection and open grooves in which the clamps are installed, the central channel in the installation ring is made with the size of the outer diameter of the tubing for fixing the tread body to the coupling connection when making up the tubing and coupling connection.

The reasons that impede the achievement of the technical result indicated below when using the known device include the fact that the tread cannot be used when changing the shape and landing dimensions of the tubing, as well as the dimensions of the power cable.

The essence of the proposed tread for protecting the power cable in the borehole is that the protectorizer body and bracket are equipped with replaceable wear-resistant supports, retaining rings fixed in the bracket and allowing the protectorizer to fit under the pump neck, and the protectorizer case in the cable channel is equipped with a compensating support for adjusting the size windows under the power cable.

In addition, the detachable locking connection is made in the form of a hinged bolt and nut, equipped with an uncontrolled make-up spring lock.

The use of the invention provides the following technical result:

- improving the reliability of mounting the protector on the pump neck;

- increasing the versatility of the tread.

The specified technical result in the implementation of the invention is achieved by the fact that the proposed device includes a two-part case, consisting of a hinged housing with a cable channel and brackets, made with the possibility of landing on both the cylindrical and hexagonal parts of the pump neck, detachable lock connection with fasteners,

The peculiarity lies in the fact that the casing and the protector of the protector are equipped with replaceable wear-resistant supports, locking rings fixed in the bracket and allowing changing the fit of the protector under the pump neck, while the protector of the protector in the cable channel is equipped with a compensating support for adjusting the window size. In addition, the detachable locking connection is made in the form of a hinged bolt and nut, equipped with an uncontrolled make-up spring lock.

The analysis of the prior art by the applicant, including a search by patents and scientific and technical sources of information and 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 made it possible 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 construction of the invention is presented in figures 1-5.

Figure 1 is a side view.

Figure 2 - view A.

Figure 3 - view B.

Figure 4 - section bb (option 1 - landing on the cylindrical part of the pump neck, option 2 - landing on the hexagonal part of the pump neck).

Figure 5 is a section G-G when landing on reduced seats of the pump neck (option 1 - landing on the cylindrical part of the pump neck, option 2 - landing on the hexagonal part of the pump neck).

The device includes a housing 1, a bracket 2, replaceable wear-resistant bearings 3 and 4, lock washers 5, a compensating support 6, an axis 7 and 8, a folding bolt 9, a nut 10, a spring stop 11.

The device is mounted on the pump neck flange 12.

The device operates as follows.

The power cable 13 is inserted into the seat of the housing 1, having previously selected the thickness of the compensating support 6. After fixing the power cable, the housing 1 and the tread bracket 2 are connected to each other on a cylindrical or hexagonal part of the pump neck. To do this, the hinged bolt 9 is inserted into the groove of the housing 1 and fixed there with the help of a nut 10 and a spring stopper 11, which prevents uncontrolled screwing of the nut 10.

The equipment of the housing 1 and the brackets 2 with replaceable wear-resistant supports 3 allows to increase the service life of the protectorizer by reducing the wear of the main parts of the tread. The presence of replaceable wear-resistant supports 4 allows the use of a protector with various sizes of the pump neck and thereby increase the versatility of the proposed device.

Thus, the foregoing 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 method in the form as described in the 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. Protectolizer to protect the power extension cable in the well, comprising a two-part body, consisting of a body with a cable channel pivotally connected to each other and brackets that can fit both the cylindrical and hexagonal parts of the pump neck, a detachable lock connection with fasteners elements, characterized in that the casing and the protector of the protector are equipped with replaceable wear-resistant supports, fixed in the bracket by retaining rings and allowing you to change the landing size of the protector the pump neck, and the protectorizer housing in the cable channel is equipped with a compensating support for adjusting the size of the window for the power cable. 2. Protectolizer according to claim 1, characterized in that the detachable locking connection is made in the form of a hinged bolt and nut, equipped with an uncontrolled make-up spring lock.

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