RU64258U1 - CABLE PROTECTION DEVICE IN A WELL - Google Patents

Abstract

The utility model relates to the oil industry, in particular, to the equipment of pumping wells and can be used to attach and protect the power cable of an electric submersible pump to the tubing string at the pipe joints with couplings.

In the cable protection device in the well, comprising a housing with a groove for accommodating the cable, a clamping bracket pivotally connected to the housing, hinged bolts included in the T-shaped grooves of the housing are pivotally mounted on the clamping bracket, the threaded end of the bolt is made with a thickening at the end.

The utility model allows to increase the reliability of the device and the manufacturability of its installation on the coupling of tubing.

Description

The utility model relates to the oil industry, in particular, to the equipment of pumping wells and can be used to attach and protect the power cable of an electric submersible pump to the tubing string at the pipe joints with couplings.

Known tread for protecting a power cable in a well according to RF patent No. 2250977, E 21 B 17/10, 2003, comprising a housing consisting of sections interconnected and an open groove for laying a power cable made on the outer surface of the device. In the side walls of the open groove, internal grooves are made for fixing the cable when screwing the tubing and coupling. The disadvantage is that the tread is integral, the placement of a groove for laying the cable on the outer surface of the device, the need for additional fixation of the cable in the groove.

A device for protecting a power cable in a well is known (RF patent No. 229667, E 21 B 17/00, 2003), comprising a housing and a groove for accommodating the power cable. The housing is closed from elastic material, the groove for accommodating the cable is made on the outer surface of the housing, has a T-shape. The disadvantage is the difficulty of securing the device to the coupling of the tubing string string. Low reliability of the device due to the placement of the cable in the groove on the outer surface of the housing.

The closest analogue to the claimed technical solution is a device for attaching a cable to a pipe string according to RF patent No. 2272886, Е 21 В 17/00, 2004. The device comprises a housing with a longitudinal groove for cable laying, upper and lower clamping brackets pivotally attached to cam cam, cams which interact with the pipes of the column. Lugs are made on the housing, on the surface of which spring-loaded rod stops are installed. The disadvantage is the complexity of the design, the difficulty of installing it on a string of tubing. The use of rod stoppers with low strength properties reduces the reliability of the device

The technical result of the utility model is to increase the reliability of the device, increase the manufacturability of the installation of the device on the coupling of tubing.

The technical result is achieved in that in the cable protection device in the well, comprising a housing with a groove for accommodating the cable, a clamping bracket pivotally connected to the housing, hinged bolts included in the T-shaped grooves of the housing are pivotally mounted on the clamping bracket, the threaded end of the bolt is made with thickening at the end.

The technical result is ensured by the implementation of folding bolts pivotally mounted on the axles of the bracket, which increases the convenience of mounting and dismounting the device on the coupling of the tubing string string. The execution of the T-grooves in the body of the housing and the placement of hinged bolts in them after tightening the threaded connection increases the reliability of the device by fixing the hinged bolts in the T-grooves, which eliminates the vibration of the clamping bracket, and therefore the axial displacement of the housing along the axis of the tubing string pipes. The execution of a threaded bolt with a thickening at the end prevents the nut from loosening and falling out. In addition, the placement of hinged bolts in the body of the body, namely in the T-grooves, protects the device from damage when lowering the string into the wellbore, increasing the reliability of the device.

The figure 1 shows the cable protection device in the well.

Figure 2 is a cross-sectional view of a cable protection device in a well.

The cable protection device in the well consists of a housing 1, with a groove 2 for cable 3, a clamp bracket 4, axles 5 of the clamp bracket 4, hinged bolts 6 mounted on the axles 7, nuts 8, hinged bolts 6 have thickenings 9 at the threaded end, in the housing 1 is made of T-grooves 10.

The device operates as follows. Having pushed the clamping bracket 4, lay the cable 3 into the groove 2 of the housing 1. Install the housing 1 on the coupling of the tubing string, cover the coupling with the clamping bracket 4, insert the folding bolts 6 into the T-grooves 10, tighten the nuts 8. When lowering the column, pump -compressor pipes, the casing is diverted to the side opposite to the side of the cable 3. The cable protection device in the borehole covers the most protruding part of the string - the coupling, securing the cable to the string and protecting it from damage during lowering th column in the wellbore and the submersible motor pump.

Thus, the proposed utility model improves the reliability of the device and the manufacturability of its installation on the coupling of tubing.

Claims (1)

A cable protection device in the well, comprising a housing with a groove for accommodating the cable, a clamping bracket pivotally connected to the housing, characterized in that the clamping bracket is pivotally mounted with folding bolts included in the T-shaped grooves of the housing, the threaded end of the bolt is made with a thickening at the end .