RU28722U1 - Device for fixing downhole pumping equipment in the well - Google Patents

Description

MGZH7E2IB 23/00

Device for fixing downhole pumping equipment in the well.

The utility model relates to techniques for oil production, in particular to downhole equipment of the oil industry, and is intended for fastening tubing during operation, for example, deep pumps.

A device for fixing downhole pumping equipment in a well is known, comprising a spring-loaded locking element, a rod with an axial channel and a guide rigidly fixed on it with an external conical surface, having a coupling at one end and a locking element control and fixing mechanism located at the ability to move relative to the guide (1),

This device is not reliable enough when performing operations when working with deep-well pumping equipment.

The technical task posed in this utility model is to increase the reliability of the device and to prevent pipes and pumping equipment from falling into the well during operation and repair.

This task is achieved by the fact that in the known device for fixing the downhole pumping equipment in the well, containing a spring-loaded locking element, a rod with an axial channel and a guide rigidly fixed on it with an external conical surface having a coupling at one end and a control mechanism at the other end and fixing the locking element, placed with the possibility of movement relative to the guide, the control mechanism and fixing the locking element is made in the form of a cylinder with a stepped plunger free end , which is fixed with a sleeve in the axial channel of the rod, on

the lower stage of the plunger with help; the pin is mixed; a half-ring with a cutter is inserted; they have edges, and holes for installing balls are made in the rod from the side of the control and fixing mechanism.

The figure 1 presents the proposed device.

The device comprises a rod 1 with an axial channel 2 and a guide 3 fixed on it with an external conical surface 4. On the rod 1, on one side, a sleeve 5 is fixed, and on the other a control and fixing mechanism 6 of the locking element 7. The latter is placed with the possibility of movement relative to guide 3. The control and locking mechanism 6 is made in the form of a cylinder 8 with a stepped plunger 9. The free end of the smaller stage 10 of the plunger 9 is fixed with a sleeve 11 in the axial channel 2 of the rod 1. At the lower stage of the plunger 9, using a pin that 12, a half ring 13 with cutting edges is placed 14. In the rod 1, on the installation side of the control and fixing mechanism 6, holes 15 are made for installing balls 16. A spring 17 is installed under the locking element 7 on the rod 1, which presses the balls 16 with the clutch 18 and subsequently to guide 3.

A device for fixing the deep pumping equipment operates as follows.

In stationary conditions, i.e. before lowering the equipment into the well, the device is assembled on the stand. When assembling the locking and control mechanism, the pins should be installed according to the design pressure of their cut, as applied to a particular well.

After lowering the mechanism into the well, under the influence of the design pressure, the pin 12 is cut off, while the cylinder 8 moves down the plunger 9 and releases the balls 16, which are pressed out of the holes 15 under the action of the spring 17 and release the locking element 7. Under the pressure of the spring 17, the locking element 7 moves up and enters

2 contact with the guide 3 and the walls of the well string. Contact with

the walls of the column are constantly maintained, which allows the transfer of part of the weight of the suspension of pipes to the underground equipment and the described device and thereby fix the equipment in the production casing of the well.

In working condition, the described device provides constant engagement with the walls of the pipe string, which prevents pipes and equipment from falling into the well during operation and during repair.

This device can be used for all types of wells, where there is a threat of breakage or destruction of pipes and equipment.

Sources of information: 1. RU 2144127 C1 MPK7 Е21В 23/00, 10.01.2000

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Claims (1)

A device for fixing downhole pumping equipment in a well, comprising a spring-loaded locking element, a rod with an axial channel and a guide rigidly fixed on it with an external conical surface, having a coupling at one end and a locking element control and fixing mechanism located at the other end movement relative to the guide, characterized in that the control mechanism and fixing the locking element is made in the form of a cylinder with a stepped plunger, the free end of which is fixed with oschyu sleeve in the axial stem channel, to a lesser degree with the plunger via a pin taken semicircle with cutting edges, wherein in stock by the control and locking mechanism are made holes for the balls.