RU2558552C1 - Protectoliser for protection of power extension cable in well - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to the oil and gas industry and may be used for the protection of the power cable for a pump from mechanical damage in the process of the tubing hanger trip with the installation of an electric centrifugal pump in vertical, directional and horizontal wells. The invention claims a protectoliser consisting of a two-component case and a detachable tool joint with fastening elements. The case consists of an articulated case with a cable duct and a bracket. The protectoliser case and the bracket are interconnected by a swing bolt and an adjusting screw screwed into the case and connected to the bracket by an axle. The adjusting screw may be regulated axially due to screwing in/out into/from the case when the diameter of the pump neck changes. The protectoliser case in the cable duct is equipped with a compensating spring support for the regulation of the slot size for the power cable. The detachable tool joint is made as a hinged bolt and a nut with a spring lock to prevent uncontrolled turning off.

EFFECT: improving the reliability of the protectoliser fixation at the pump neck; improved universality of the protector.

2 cl, 5 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.

Known protectorizer to protect the cable extension of the submersible pumping station ESP (see Patent for the invention of the Russian Federation No. 2313652. CL. E21B 17/02. Publish. 12/27/2007), containing a two-part housing, consisting of articulated lids and grips, 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 a 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 cable fastening to the protectorizer case.

A protector for protecting a power cable in a well is known (see Utility Model Certificate of the Russian Federation No. 63844. Cl. E21B 17/10. Publ. 10.06.2007), comprising 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, and the central channel in the installation ring is made with the size of the outer diameter of the tubing for I fix the tread case to the coupling when screwing the tubing and the coupling together.

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 well is that the casing and the protector of the protector are connected by an adjusting bolt screwed into the casing and connected to the bracket via an axis, and the adjusting bolt has the possibility of axial regulation by screwing in or out of the casing in case of changing the diameter of the pump neck, the protectorizer casing in the cable channel is equipped with a compensating spring support for regulating the size of the window for 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 lock washer.

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 interconnected by an adjusting bolt screwed into the casing and connected to the bracket via an axis, and the adjusting bolt has the possibility of axial adjustment by screwing in or out of the casing if the diameter of the pump neck changes The protectorizer housing in the cable channel is equipped with a compensating spring support for adjusting the size of the window for 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 lock washer.

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, allowed 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 shown in FIG. 1-5.

FIG. 1 is a side view.

FIG. 2 - section aa.

FIG. 3 - view B.

FIG. 4 - section BB.

FIG. 5 is a view of a protector with a folded bracket.

The device includes a housing 1, a bracket 2, a flange of an ESP 3, a power cable 4, a folding bolt 5, a clamping nut 6, a lock washer 7, an adjusting bolt 8, a spring plate 9, an axis 10, a support 11, a lock ring 12.

The device operates as follows. The power cable 4 is inserted into the seat of the housing 1, after selecting the thickness of the spring plate 9. 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 5 is inserted into the groove of the housing 1 and fixed there using the clamping nut 6 and the lock washer 7, which prevents uncontrolled screwing of the clamping nut 6.

In the event of a change in the diameter of the pump neck, an axial movement of the adjusting bolt 8 is made by screwing it in or out of the housing 1.

The use of a spring plate 9 allows you to securely fix the power cable 4 in the seat of the device body 1, and the adjustable mounting structure of the device body 1 with a bracket 2 allows you to mount the device on both the cylindrical and hexagonal parts of the pump neck.

All this increases the reliability of mounting the protector on the pump neck and increases the versatility of the 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 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;

- 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 protector are connected to each other by an adjusting bolt screwed into the housing and connected to the bracket via an axis, and the adjusting bolt is possible axial regulation by screwing into the housing or twisting out of it in case of changing the diameter of the pump neck, the protectorizer housing itself in the cable channel is equipped with a compensating spring support for adjusting the size of the window for the power cable. 2. Protectolizer according to claim 1, characterized in that the detachable lock connection is made in the form of a hinged bolt and nut, equipped with an uncontrolled make-up lock washer.

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