WO2018218846A1

WO2018218846A1 - Pumping and oil suction type petroleum packer

Info

Publication number: WO2018218846A1
Application number: PCT/CN2017/105525
Authority: WO
Inventors: 郭峰; 王�华; 陈旭
Original assignee: 江苏省金峰石油机械制造有限公司
Priority date: 2017-05-29
Filing date: 2017-10-10
Publication date: 2018-12-06
Also published as: JP3226681U; CN106968634A

Abstract

A pumping and oil suction type petroleum packer, comprising an upper connector (1); the upper connector (1) is communicated with a center pipe (7) at the bottom of the upper connector (1); a pin (2) is provided on one side of the center pipe (7); an adjusting ring (3) is provided at the bottom of the pin (2); a first O-shaped rubber gasket (4) is provided on one side of the adjusting ring (3); a rubber sleeve (5) is provided at the bottom of the adjusting ring (3); a third O-shaped rubber gasket (10) is provided at the bottom of a bearing connector (9); a setting shear pin (11) is provided at the bottom of the third O-shaped rubber gasket (10); a key (12) is provided at the bottom of the setting shear pin (11); a lower connector (13) is provided at the bottom of the key (12); a compression distance spacer (14) is provided at one side of the key (12); the center pipe (7) is communicated with a drawing tube (16) on the other side of the center pipe (7); a sealing plug pin (19) transversely penetrates through the drawing tube (16); a piston (17) is provided in the drawing tube (16); the piston (17) is fixedly connected to an air cylinder connecting piece (18) on the surface of the drawing tube (16); and a pumping opening (15) is formed on one end of the drawing tube (16). According to the pumping and oil suction type petroleum packer, a device for pumping and clearing away oil dirt in the center pipe is additionally provided on an existing packer, pipe blockage can be effectively prevented, and the service life of the device can be prolonged.

Description

Pumping oil absorption type oil packer

Technical field

The invention relates to a packer, in particular to a pumping oil-absorbing type petroleum packer, belonging to the technical field of petroleum machinery.

Background technique

In the oil recovery project, the packer is used for stratification, and the oil collector is designed on the packer. When the seal is set, the piston sleeve is up and the oil production passage is opened. After the seal is placed, the upper layer pressure acts on the balance piston and pushes the rubber cylinder upward. The unsealing pin is protected from shearing force; when unsealing, the friction pin of the rubber tube and the sleeve is used to cut off the unsealing pin, the piston sleeve is descended, the oil collecting passage is closed, and the oil plugging device is prevented from blocking the water construction process, which can be conveniently The utility model can realize the non-pressure well not discharging operation, and can withstand high pressure in both directions and has a long service life. The skin packers commonly used in oil fields are self-sealing. The outer diameter of the cup is larger than the inner diameter of the sleeve, and the interference between the cup and the sleeve is used to achieve the sealing of the packer. When the well is down, the resistance is large, and the cup is easily worn and scratched, thereby losing the sealing property. With the deep understanding of the oil layer, thick oil layer digging potential is imperative, and also puts higher requirements on the downhole packer. The existing packer is attached to the central pipe wall due to crude oil during oil recovery. It is easy to cause blockage and it is difficult to clear, but the existing technology is difficult to overcome the above problems.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the problem that the existing packer is easy to cause blockage and difficult to dredge when oil is adhered to the wall of the central pipe during oil production, and a pumping and oil-absorbing type petroleum packer is provided.

In order to solve the above technical problem, the present invention provides the following technical solutions:

The invention provides a pumping oil-absorbing type petroleum packer, comprising an upper joint, wherein the upper joint is in communication with a central tube of a bottom thereof, a pin is arranged on one side of the central tube, and an adjusting ring is arranged at a bottom of the pin. One side of the adjusting ring is provided with a first O-shaped rubber ring, a bottom of the adjusting ring is provided with a rubber cylinder, a bottom of the rubber cylinder is provided with a spacer ring, and a bottom of the spacer ring is provided with a second O type a rubber ring, one side of the second O-shaped rubber ring is disposed on one side of the pressure receiving joint, and the bottom of the pressure receiving joint is provided with a third O-shaped rubber ring, and the third O-shaped rubber ring The bottom is provided with a setting shearing nail, the bottom of the setting shearing nail is provided with a key, the bottom of the key is provided with a lower joint, one side of the key is provided with a compression distance backing ring, and the central tube is opposite to the other a suction pump is connected to the side, and a sealing pin is inserted transversely on the suction cylinder, and the inside of the suction cylinder is set to live a plug, the piston is fixedly connected to a cylinder connecting member on the surface of the pumping cylinder, and one end of the pumping cylinder is provided with a water pumping port.

As a preferred technical solution of the present invention, the cylinder connecting member is provided in a shape matching the cylinder.

As a preferred embodiment of the invention, the piston is slidably coupled to the inner wall of the pump.

As a preferred technical solution of the present invention, the piston is made of a rubber material.

As a preferred technical solution of the present invention, the sealing plug is a detachable sealing pin.

The utility model achieves the beneficial effects that the device is a pumping and oil-absorbing type petroleum packer, and the device increases the oil staining device in the central pipe on the existing packer, which can effectively prevent the pipe jam and increase the equipment. The service life of the whole device is reasonable and easy to use. It solves the problem that the existing packer is easy to cause blockage due to the adhesion of crude oil to the wall of the central pipe during oil recovery.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

Figure 1 is a schematic view of the structure of the present invention;

In the figure: 1, the upper joint; 2, the pin; 3, the adjusting ring; 4, the first O-shaped rubber ring; 5, the rubber cylinder; 6, the spacer ring; 7, the central tube; 8, the second O-shaped rubber ring; 9, pressure joints; 10, the third O-shaped rubber ring; 11, set the cutting nail; 12, the key; 13, the lower joint; 14, compression distance ring; 15, pumping port; 16, pumping; Piston; 18, cylinder connection; 19, sealing pin.

detailed description

The preferred embodiments of the present invention are described with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention.

Example 1

As shown in FIG. 1, the present invention provides a pumping oil-absorbing type petroleum packer comprising an upper joint 1 which is in communication with a central pipe 7 at the bottom thereof, and a pin 2 is provided on one side of the center pipe 7, and the bottom of the pin 2 is provided. An adjusting ring 3 is arranged, one side of the adjusting ring 3 is provided with a first O-shaped rubber ring 4, the bottom of the adjusting ring 3 is provided with a rubber cylinder 5, the bottom of the rubber cylinder 5 is provided with a spacer ring 6, and the bottom of the spacer ring 6 is arranged There is a second O-shaped rubber ring 8, and one side of the second O-shaped rubber ring 8 is provided with a pressure receiving joint 9 on one side thereof, and a third O-shaped rubber ring 10 is disposed at the bottom of the pressure receiving joint 9 The bottom of the apron 10 is provided with a setting shearing nail 11 , and the bottom of the sealing shearing nail 11 is provided with a key 12 , the bottom of the key 12 is provided with a lower joint 13 , and one side of the key 12 is provided with a compression distance ring 14 , the center The tube 7 is in communication with the suction tube 16 on the other side thereof. The suction tube 16 is transversely inserted with a sealing pin 19. The inside of the suction tube 16 is provided with a piston 17, and the piston 17 is fixedly connected with the cylinder connecting member 18 on the surface of the suction tube 16, and the suction tube One end of 16 A water outlet 15 is provided.

The cylinder connecting member 18 is provided in a shape matching the cylinder to facilitate connection of the transmission mechanism of the cylinder.

The piston 17 is slidably coupled to the inner wall of the suction drum 16 to facilitate piston movement within the suction cylinder.

The piston 17 is made of a rubber material to increase the friction with the cylinder diameter.

The sealing pin 19 is a detachable sealing pin that is easy to pull out when needed.

The device is a pumping and oil-absorbing type petroleum packer. When the device is needed, the column is arranged at the required setting height when setting. Because the pressure joint and the upper joint 1 are connected with the tail pipe, with the bottom of the well as the fulcrum, the set shearing nail 11 is cut, the upper joint 1, the adjusting ring 3, the central pipe 7 and the key 12 are descended together, and the oil pipe and the sleeve are sealed. The annular space of the tube, when the tube is unsealed, the tube is taken up, the rubber tube is retracted, and the original shape is restored. After the setting is completed, water is added to the center tube 7, and the oil can be appropriately matched, and the sealing pin 19 is pulled out to connect the cylinder connecting member 18 with The transmission mechanism of the cylinder is fixedly connected, and the cylinder drives the piston 17 to perform piston movement in the suction cylinder 16, and the water in the central pipe 7 is continuously stirred by the air pressure to flush the stubborn oil, and then the central pipe 7 is opened to discharge the sewage.

It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, although the present invention has been described in detail with reference to the foregoing embodiments, Modifications may be made to the technical solutions described in the foregoing embodiments, or some of the technical features may be equivalently replaced. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A pumping oil-absorbing type petroleum packer comprising an upper joint (1), characterized in that the upper joint (1) is in communication with a central pipe (7) at the bottom thereof, and one side of the central pipe (7) is provided a pin (2), the bottom of the pin (2) is provided with an adjusting ring (3), one side of the adjusting ring (3) is provided with a first O-ring (4), the adjusting ring (3) a bottom is provided with a rubber cylinder (5), a bottom of the rubber cylinder (5) is provided with a spacer ring (6), and a bottom of the spacer ring (6) is provided with a second O-shaped rubber ring (8), One side of the second O-shaped rubber ring (8) is provided with a pressure receiving joint (9) on one side thereof, and a third O-shaped rubber ring (10) is disposed at the bottom of the pressure receiving joint (9), The bottom of the third O-shaped rubber ring (10) is provided with a setting shearing nail (11), the bottom of the setting shearing nail (11) is provided with a key (12), and the bottom of the key (12) is provided with a lower portion a joint (13), one side of the key (12) is provided with a compression spacer ring (14), and the central tube (7) is in communication with a suction cylinder (16) on the other side thereof, the suction cylinder (16) A sealing plug (19) is inserted transversely in the upper direction, and a piston (17) is disposed inside the suction cylinder (16), and the piston (17) is connected to a cylinder on the surface of the suction cylinder (16) One end (18) is fixedly connected to the suction tube (16) is provided with a suction port (15).
A pumping and oil absorbing type petroleum packer according to claim 1, wherein said cylinder connecting member (18) is provided in a shape matching the cylinder.
A pumping and oil absorbing type petroleum packer according to claim 1, wherein said piston (17) is slidably coupled to an inner wall of the suction drum (16).
A pumping and oil absorbing type petroleum packer according to claim 1, wherein said piston (17) is made of a rubber material.
A pumping and oil absorbing type petroleum packer according to claim 1, wherein said sealing pin (19) is a detachable sealing pin.