JP3226681U - Pumped oil absorption type oil packer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pumped oil absorption type oil packer capable of preventing clogging in the pipe and extending the life of the equipment by adding an oil stain pumping/cleaning device in the center pipe on top of a conventional packer. An upper joint (1) communicates with a bottom central tube (7), a pin (2) is provided on one side of the central tube, an adjusting ring (3) is provided at the bottom of the pin, and a first O-ring (4) is on one side of the adjusting ring. , A rubber cylinder 5 is provided at the bottom of the adjusting ring, a third O-ring 10 is provided at the bottom of the pressure receiving joint 9, and a setting shear pin 11 is provided at the bottom of the third O-ring. The key 12 is provided at the bottom of the shear pin, the lower joint 13 is provided at the bottom of the key, the compression ring 14 is provided at one side of the key, and the central tube communicates with the draw tube 16 at the other side. A seal pin 19 is laterally inserted into the drawing tube, a piston 17 is provided inside the draw tube, the piston and a cylinder assembly 18 on the surface of the draw tube are fixedly connected, and a pumping port 15 is provided at one end of the draw tube. [Selection diagram] Figure 1

Description

The present invention relates to a packer, and more particularly to a pumped oil absorption type oil packer. The present invention belongs to the field of petroleum machinery technology.

Packers are used for layer separation in the oil mining process. An oil collecting passage is provided in the packer, and when setting, the piston cap goes up and the oil collecting passage is opened. After setting, the upper layer pressure acts on the balance piston, and the rubber tube is projected upward, which can protect the opening pin from the influence of shearing force. At the time of release, the opening pin is sheared by the frictional force between the rubber cylinder and the sleeve, the piston cap moves downward, and the oil collecting passage is closed. As a result, the water blocking process of the oil well packer is reduced, snubbing and no-open flow work can be easily realized, and high pressure can be endured in both directions, extending the service life. The cup packer that is commonly used in oil fields is self-sealing, so the outer diameter of the cup is larger than the inner diameter of the sleeve. And the cup is easily worn, easily damaged, and loses hermeticity. With the deeper recognition of oil reservoirs, it has been required to drill into thicker oil reservoirs. At the same time, even higher demands are being placed on packers used under oil wells. When a conventional packer collects oil, crude oil adheres to the tube wall of the central tube, which easily causes clogging, which may cause difficulty in flow. Unfortunately, the prior art cannot solve the above problems.

An object of the present invention is to provide a pumped oil absorption type oil packer in order to solve the problem that the crude oil adheres to the wall of the central tube of the packer when the oil is collected, which easily causes clogging and makes the flow difficult. To do.
The present invention provides the following technical means in order to solve the above technical problems.

The present invention provides a pumped oil absorption type oil packer including an upper joint. The upper joint is in communication with the central tube of the bottom portion, the pin is provided on one side of the central tube, the adjusting ring is provided on the bottom portion of the pin, the first O-ring is provided on one side of the adjusting ring, A rubber cylinder is provided at the bottom of the adjusting ring, a retainer is provided at the bottom of the rubber cylinder, a second O-ring is provided at the bottom of the retainer, and pressure is received on one side where the second O-ring is provided. A joint is provided, a third O ring is provided at the bottom of the pressure receiving joint, a setting shear pin is provided at the bottom of the third O ring, and a key is provided at the bottom of the setting shear pin. A bottom joint is provided on the bottom of the key, a compression ring is provided on one side of the key, the central tube communicates with a draw tube on the other side, and a seal pin is laterally inserted on the draw tube to draw the draw tube. A piston is provided inside the tube, the piston and the cylinder assembly on the surface of the draw tube are fixedly connected, and a pumping port is provided at one end of the draw tube.

In a preferred embodiment of the present invention, the cylinder assembly is provided to adapt to the shape of the cylinder.

In a preferred embodiment of the present invention, the piston and the inner wall of the draw tube are slidably connected.

In a preferred embodiment of the present invention, the piston is made of rubber material.

In a preferred embodiment of the present invention, the seal pin is a removable plug pin.

The beneficial effects of the present invention are as follows. This device is a pumped oil absorption type oil packer, and by adding an oil dirt pumped-up water cleaning device in the central pipe to the conventional packer, clogging in the pipe can be effectively prevented and it is effective in extending the life of the equipment. The present invention solves the problems that the design is rational, the operation is simple, and the conventional packer causes crude oil to adhere to the tube wall of the central tube when collecting oil, which easily causes clogging and makes the flow difficult. can do.

The invention will be better understood with reference to the drawings. It is an example that will be described in detail based on its preferred embodiments and should not be considered restrictive.
1 is a schematic view of the structure of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in the embodiments of the present invention. The description is an example and should not be considered limiting.

<Embodiment 1>
As shown in FIG. 1, the present invention provides a pumped oil absorption type oil packer. Top fitting 1 is included. The upper joint 1 communicates with the center tube 7 at the bottom, the pin 2 is provided on one side of the center tube 7, the adjustment ring 3 is provided at the bottom of the pin 2, and the first O-ring 4 is provided on one side of the adjustment ring 3. Provided, a rubber cylinder 5 is provided at the bottom of the adjusting ring 3, a retainer 6 is provided at the bottom of the rubber cylinder 5, a second O-ring 8 is provided at the bottom of the retainer 6, and a second O-ring 8 is provided. A pressure receiving joint 9 is provided on one side provided, a third O ring 10 is provided at the bottom of the pressure receiving joint 9, a setting shear pin 11 is provided at the bottom of the third O ring 10, and a setting shear pin 11 is provided. A key 12 is provided on the bottom of the key 12, a lower joint 13 is provided on the bottom of the key 12, a compression ring 14 is provided on one side of the key 12, and a central tube 7 is in communication with a draw tube 16 on the other side. A seal pin 19 is inserted sideways on the tube 16, a piston 17 is provided inside the draw tube 16, a piston 17 and a cylinder assembly 18 on the surface of the draw tube 16 are fixedly connected, and a pumping port is provided at one end of the draw tube 16. 15 are provided.

In order to facilitate the connection with the transmission mechanism of the cylinder, the cylinder coupling body 18 is provided to adapt to the shape of the cylinder.

In order to facilitate the movement of the piston in the draw tube, the piston 17 and the inner wall of the draw tube 16 are slidably connected.

The piston 17 is made of a rubber material, and the frictional force with the cylinder diameter increases.

The seal pins are removable plug pins to facilitate extraction when needed.

This device is a pumped oil absorption type oil packer, and when necessary, the tube column can be set according to the required height at the time of setting. Since the pressure receiving joint and the upper joint 1 are in contact with the tail pipe, the setting shear pin 11 is sheared with the bottom of the well as the fulcrum, and the upper joint 1, the adjusting ring 3, the central pipe 7 and the key 12 go down together, and the oil pipe and sleeve Seal the annular space. At the time of release, lift the tube column to collect the rubber cylinder and return it to the original state. After the setting is completed, water may be added into the central tube 7 and mixed with oil as appropriate. By removing the seal pin 19, the cylinder assembly 18 is fixedly connected to the transmission mechanism of the cylinder, and the cylinder interlocks with the piston 17 to perform piston movement in the draw tube 16 and constantly agitate the water in the central tube 7 by the atmospheric pressure. Then, after washing away the stubborn oil stains, the central pipe 7 is opened to discharge the stain water.

This device is a pumped oil absorption type oil packer.By adding an oil dirt pumped water cleaning device in the center pipe to the conventional packer, clogging in the pipe can be effectively prevented and it is effective for extending the life of the equipment. is there. The present invention has a streamlined design, is easy to operate, and solves the problem that the conventional packer tends to clog the crude oil on the tube wall of the central tube when collecting oil, making the flow difficult. can do.

It should be noted that the present invention is not limited to the examples of the above-described embodiments, and those skilled in the art can make various modifications within the scope of the invention described in the claims for utility model registration. It goes without saying that it is included within the scope of the present invention.

1, upper joint; 2, pin; 3, adjusting ring; 4, first O-ring; 5, rubber tube; 6, retainer; 7, central tube; 8, second O-ring; 9, pressure receiving joint; 10 , 3rd O-ring; 11, setting shear pin; 12, key; 13, lower joint; 14, compression ring; 15, pumping port; 16, draw tube; 17, piston; 18, cylinder assembly; 19, seal pin ..

Claims (5)

A pumped oil absorption type oil packer including an upper joint (1), wherein the upper joint (1) communicates with a central pipe (7) at the bottom, and a pin (2) is provided on one side of the central pipe (7), An adjusting ring (3) is provided on the bottom of the pin (2), a first O-ring (4) is provided on one side of the adjusting ring (3), and a rubber tube (3) is provided on the bottom of the adjusting ring (3). 5) is provided, a retainer (6) is provided at the bottom of the rubber tube (5), a second O-ring (8) is provided at the bottom of the retainer (6), and the second O-ring ( The pressure receiving joint (9) is provided on one side provided with 8), the third O ring (10) is provided at the bottom of the pressure receiving joint (9), and the bottom of the third O ring (10) is provided. Is provided with a setting shear pin (11), a key (12) is provided at the bottom of the setting shear pin (11), and a lower joint (13) is provided at the bottom of the key (12). ), a compression ring (14) is provided on one side, the central tube (7) communicates with the draw tube (16) on the other side, and a seal pin (19) is inserted sideways on the draw tube (16). A piston (17) is provided inside the draw tube (16), and the piston (17) and the cylinder assembly (18) on the surface of the draw tube (16) are fixedly connected to each other, and the draw tube (16) A pumped oil absorption type oil packer, characterized in that a pumping port (15) is provided at one end of the. 2. The pumped oil-absorption type petroleum packer according to claim 1, wherein the cylinder assembly (18) is provided so as to conform to the shape of the cylinder. 2. The pumped oil absorption type oil packer according to claim 1, wherein the piston (17) and the inner wall of the draw tube (16) are slidably connected to each other. 2. The pumped oil absorption type oil packer according to claim 1, wherein the piston (17) is made of a rubber material. 2. The pumped oil absorption type oil packer according to claim 1, wherein the seal pin (19) is a removable plug pin.