RU17334U1 - DRAWING SCRAPER FOR CLEANING THE INNER CAVITY OF PIPES FROM PARAFFIN AND OTHER DEPOSITS - Google Patents

Abstract

1. Scraper-broach for cleaning the internal cavities of pipes from paraffin and other deposits, comprising a housing and treatment heads with axial holes, sharp edges on the outer surface and grooves between them, mounted on the axis with the possibility of rotation and with the possibility of free movement in the axial direction, characterized in that the diameter of the hole at the end of the treatment head exceeds the diameter of the axis by 1.2-3 times and has at least one conical surface, and the ends of the heads are made flat and arranged perpendicular to along the axis of symmetry, the cleaning heads are located between the flat supports, the distance between which exceeds the height of the cleaning head, the upper support is perpendicular to the axis, and the lower one is located at an angle of 5-30 relative to the upper. 2. The scraper-broach according to claim 1, characterized in that the lower support of each subsequent cleaning head is rotated around a vertical axis relative to the previous lower supports.

Description

for cleaning internal pipe cavities from narafium and

The utility model relates to oil and gas production, in particular, to devices for cleaning tubing from paraffin and other deposits using plunger lift technology for oil and gas production.

A device for cleaning internal pipe cavities from paraffin and other deposits, comprising a housing, cleaning heads with sharp edges and grooves between them, mounted on the shaft with the possibility of rotation, a stabilizer fixed in the upper part of the housing, made in the form of longitudinal protrusions located on the housing, each of which has a sharp 1 crowbar at the top and two lead-in sections at the ends of the protrusion, and a mechanism is fixed in the treatment head that ensures that the treatment head rotates only in one direction, and The property that allows the cleaning head to rotate in one direction only one way can consist of a washer on which the brake elements are mounted fixed on the shaft, and the distance from the upper end of the shaft to the washer exceeds the length of the cleaning head, which can freely move axially the amount of clearance. (Certificate for useful fashion. 11b No. 11261, E 21 B 37/02, publ. 16.09.99, bull. No. 9).

The problem being solved by a utility model is the cleaning of tubing from paraffin and other deposits during oil and gas production. The technical result achieved by the implementation of the claimed device is to improve the quality of cleaning deposits with

Broaching scraper

other deposits

. E21 B 37/02

im

high density.

The task with the achievement of the specified technical

The result is realized due to the fact that in the known device for cleaning the internal cavities of pipes from paraffin and other deposits, comprising a housing and treatment heads with axial holes, sharp edges on the outer surface and grooves between them mounted on the axis with the possibility of rotation and with the possibility of free axial movement, according to the proposed utility model, the diameter of the hole at the end of the cleaning head exceeds the axis diameter by 1.2-3 times and has at least one conical surface, and the torus s heads are planar and are located perpendicularly to the longitudinal axis of symmetry, cleaning heads are arranged between the flat supports, the distance between which is greater than the height of the cleaning head, the upper bearing is perpendicular to the axis, and the bottom is at an angle of 5 ° - 30 °

relative to the top.

Additional embodiments of the device are possible in which it is advisable that:

the lower support of each subsequent cleaning head is rotated

around the vertical axis relative to the previous lower supports.

The figure 1 shows a scraper-broach during the descent into the cleansed pipe collet.

The figure 2 shows a section along aa of figure 1.

The figure 3 shows a scraper-broach when lifting in a cleaned pipe string.

The figure 4 shows a section along BB of figure 3.

weighting agents and a joining attachment to the wire (not shown in the drawing), cleaning heads 2, on the outer surface of which sharp edges are made 3. The edges can be made either straight or inclined along the helical surface. Between the 1 crowbar there are grooves 4 for the passage of the flow (oil, gas). Cleaning heads 2 are placed on the axis 5 with the possibility of rotation and with the possibility of movement along the axis. The diameter of the hole at the end face 6 of the treatment head 2 is 1.2-3 times larger than the diameter of the axis 5 and has at least one conical surface 7. In the proposed embodiment, the second conical surface is also made 8. The ends 6 and 9. are made flat and are perpendicular the longitudinal axis of symmetry of the cleaning head 2. On the axis 5 are fixed supports with flat supporting surfaces 10, 11, 12 and 13. The distance between the supports 10 and 12, as well as 12 and 13 exceeds the height of the cleaning head 2. The upper supports 10 and 12 are perpendicular to the axis 5, and the plane of the lower supports 11 and 13 is located wife at an angle 30 with respect to the upper. Lower support 13,

rotated around a vertical axis relative to the support 11.

The scraper broach for cleaning the internal cavities of the pipes from paraffin and other deposits works as follows.

When the proposed device is suspended on a wire, down the column of tubing 14, sharp edges 3 cut into the deposits. The cleaning heads 2 are displaced to the upper support 10 and 12. The axes of the cleaning heads are located along a common axis. When the contact of the cutting edges 3 with loose deposits is the process of cutting these deposits.

  (/ f

heads 2, cut into deposits and form a grid of grooves in it. In this case, the resistance to moving the device down is minimal.

When the proposed device moves up, due to winding

wire to the winch drum (not shown in the drawing), sharp edges 3 cut into deposits. The cleaning heads 2 are shifted to the lower supports 11 and 13. The lower end 9 is supported on an inclined surface and the entire head 2 is deployed in a vertical plane. Due to the rotation of the treatment head, the depth of penetration of 1 shovel 3 into the deposition layer in the inclination plane increases. Due to the rotation of each subsequent lower support 13, around a vertical axis relative to the previous lower support 11, it is possible to evenly distribute the zone of increased removal of deposits.

This embodiment of the device allows to improve the quality of cleaning of tubing with the addition of oil and gas.

them

Claims (2)

1. Scraper-broach for cleaning the internal cavities of pipes from paraffin and other deposits, comprising a housing and treatment heads with axial holes, sharp edges on the outer surface and grooves between them, mounted on the axis with the possibility of rotation and with the possibility of free movement in the axial direction, characterized in that the diameter of the hole at the end of the treatment head exceeds the diameter of the axis by 1.2-3 times and has at least one conical surface, and the ends of the heads are made flat and arranged perpendicular to along the axis of symmetry, the cleaning heads are located between flat supports, the distance between which exceeds the height of the cleaning head, the upper bearing is perpendicular to the axis, and the lower one is located at an angle of 5-30 ^o relative to the upper one. 2. The scraper-broach according to claim 1, characterized in that the lower support of each subsequent treatment head is rotated around a vertical axis relative to the previous lower supports.