SU1377456A1 - Arrangement for lifting liquid from wells - Google Patents

Abstract

The invention allows to increase the operating efficiency of the device. The elastic sealing cuff 6 is made in the form of a truncated cone, the smaller base 12 of which is associated with the body 4. The plates 10 are kinematically associated with the load 9 installed in the upper part of the body with the possibility of axial movement. As the plunger 3 moves down, the cuff, deformed, is pulled toward the center of the plunger body. As the plunger moves upward, the cuff opens and seizes the fluid that rises. 4 il. i (L oo vi vi 4 cl 05

Description

The invention relates to a technique for lifting liquids from wells and can be used in the oil and gas industry to extract fluids from bypassing oil and gas wells during their development, as well as during operation.

The purpose of the invention is to increase efficiency in operation.

Fig. 1 shows schematically the proposed device for lifting fluid from wells during its descent into the well, a general view; figure 2 - section aa in figure 1; FIG. 3 shows a device for lifting fluid from wells in the process of lifting it from a well; figure 4 - section bb in figure 3.

The device for lifting fluid from the squash contains a column of lifting pipes 1, a cylinder 2 connected to the column of lifting pipes with a plunger 3 arranged in it, which is made in the form of a housing 4 with a check valve 5 and an elastic sealing sleeve 6 installed on the body, sliding dies 7, mounted with the possibility of interaction with the inner surface of the column of the lifting pipes 1, and the actuator 8. The housing 4 is equipped with a weight 9 installed in its upper part with the possibility of axial movement, and on the inner surface of the elastic pipe The relative cuff 6 is fixed to the plates 10, kinematically connected with at least three articulated arms 11c with a weight 9, the elastic sealing cuff 6 made in the form of a truncated cone (not indicated), the smaller base 12 of which is connected to the housing 4, Under the elastic sealing cuff 6 on the housing 4 there is a brake centralizer 13, and above the cuff in the load 9 there are channels 14 for the passage of fluid into the sliding rams 7.

A device for lifting fluid from wells works in the following manner.

When the device plunger 3 moves downwards, the centering brake 13 brakes the plunger body 4 in the cylinder 2, in the load 9 through the rods 11 it acts horizontally on the elastic sealing lip 6, pushing it towards the center of the plunger body, and simultaneously overcoming the action brake - centralizer 13, pushes the plunger down (figure 1). Elastic sealing cuff 6 with

This is reduced in radial dimensions, taking a wavy shape (figure 2).

When the plunger 3 reaches the predetermined depth of the device, it is transferred to an upward movement (Fig. 3). At the same time, the load 9 also moves up and through

11 opens an elastic sealing cuff 6 (FIG. 4), which fits against the walls of the cylinder 2. The degree of adherence is determined by the size of the size r and t1. Grasped by plunger 3 with elastic sealing cuff 6, the liquid rises to the surface. In case of gas breakthrough

The plunger 3 of the device in the indicated position is raised towards the sliding dies 7 and is braked or during its movement. When this gas passes through the check valve 5.

Claims (1)

Invention Formula A device for lifting fluid from wells, containing a column of lifting pipes, a cylinder connected to the column of lifting pipes with a plunger located in it, which is made in the form of a housing with a check valve and an elastic sealing cuff mounted on the housing, sliding dies installed with the possibility of interaction with the inner the surface of the column of lifting pipes, and the actuator, characterized in that, in order to increase the efficiency in operation, the housing is provided with an axially installed in its upper part The movement is carried out by a load, and the plates that are kinematically connected by means of hinges with a weight are fixed on the inner surface of the elastic sealing cuff, the elastic sealing cuff being made in the form of a truncated cone, the smaller base of which is connected to the body. five 0 five 0 A-fi FIG. 2 FIG. Fi &.