Dragging type fracturing rubber sleeve

Abstract

The utility model relates to the technical field of dragging type fracturing rubber sleeves, and discloses a dragging type fracturing rubber sleeve which comprises a dragging type fracturing rubber sleeve body and a first sealing sleeve, the first sealing sleeve is arranged outside the dragging type fracturing rubber sleeve body, a second sealing sleeve is arranged on one side of the first sealing sleeve, and the second sealing sleeve is arranged on the other side of the dragging type fracturing rubber sleeve body. And the left side of the exterior of the first sealing sleeve is fixedly connected with a first connecting seat. According to the dragging type fracturing rubber sleeve, parts such as the first sealing sleeve and the like are arranged, the first sealing sleeve and the second sealing sleeve are connected to the exterior of the dragging type fracturing rubber sleeve body in a sleeving mode, and a double-thread screw transversely penetrates through a first assembly hole and a second assembly hole; the first locking nut and the second locking nut are connected to the outer portion of the double-thread screw in a sleeving mode to be fixed, so that the first sealing sleeve and the second sealing sleeve are conveniently connected and fixed, the external sealing effect of the rubber sleeve is improved, liquid is prevented from leaking from the outside, and the problems that liquid is prone to leaking from the outside and sealing is not tight are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drag - type fracturing rubber cylinders, and specifically relates to a drag - type fracturing rubber cylinder. Background Technique

[0002] A drag - type fracturing rubber cylinder is a fracturing tool installed on a drag - type fracturing packer. The main function of the fracturing rubber cylinder is to provide a cylindrical sealing product during the processes of layered exploitation, testing, water injection, acidification, and fracturing in oil and gas fields. Through the action of mechanical force transmission, the rubber cylinder of the packer is compressed and expanded to separate layers.

[0003] According to the design of the existing drag - type fracturing rubber cylinder, under the action of pressure, the rubber cylinder will expand outwards until it contacts the inner wall of the casing. There is no external protective sealing structure, resulting in easy leakage of liquid from the outside. Therefore, its structure needs to be improved.

[0004] Now, a new type of drag - type fracturing rubber cylinder is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a drag - type fracturing rubber cylinder to solve the problems of easy leakage of liquid from the outside and poor sealing proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A drag - type fracturing rubber cylinder includes a drag - type fracturing rubber cylinder body and a first sealing sleeve. The first sealing sleeve is arranged outside the drag - type fracturing rubber cylinder body. A second sealing sleeve is arranged on one side of the first sealing sleeve. A first connecting seat is fixedly connected to the left side outside the first sealing sleeve. A second connecting seat is fixedly connected to the right side outside the second sealing sleeve. A first assembly hole is arranged inside the first connecting seat. A second assembly hole is arranged inside the second connecting seat. A double - headed screw is horizontally penetrated through the inside of the first assembly hole and the second assembly hole. A first locking nut is movably connected to the right side outside the double - headed screw. A second locking nut is movably connected to the left side outside the double - headed screw.

[0007] Preferably, the first sealing sleeve and the second sealing sleeve are detachable through the double - headed screw, the first locking nut, and the second locking nut.

[0008] Preferably, a first corrosion - resistant layer is fixedly connected to the inner wall of the drag - type fracturing rubber cylinder body. A first bonding layer is fixedly connected to the outer wall of the drag - type fracturing rubber cylinder body. A reinforcement layer is fixedly connected to the outside of the first bonding layer. A second bonding layer is fixedly connected to the outside of the reinforcement layer. A second corrosion - resistant layer is fixedly connected to the outside of the second bonding layer. A third bonding layer is arranged outside the second corrosion - resistant layer. A wear - resistant layer is fixedly connected to the outside of the third bonding layer.

[0009] Preferably, a splicing groove is arranged inside one side of the drag - type fracturing rubber cylinder body, and a positioning rod is fixedly connected to the other side of the drag - type fracturing rubber cylinder body.

[0010] Preferably, the positions of the splicing groove and the positioning rod coincide.

[0011] Preferably, four groups of splicing grooves are provided, and four groups of positioning rods are provided.

[0012] Preferably, the diameters and lengths of the first sealing sleeve and the second sealing sleeve are the same.

[0013] Preferably, the thicknesses of the first corrosion - resistant layer and the second corrosion - resistant layer are the same, and the materials of the first corrosion - resistant layer and the second corrosion - resistant layer are the same.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The drag - type fracturing rubber cylinder not only improves the sealing performance and is not prone to leakage, but also improves the corrosion resistance, and is convenient for splicing and extending the use length;

[0015] (1) By providing a first sealing sleeve, a second sealing sleeve, a first connecting seat, a first assembly hole, a double - headed screw, a first locking nut, a second connecting seat, a second assembly hole, and a second locking nut, the first sealing sleeve and the second sealing sleeve are respectively sleeved outside the drag - type fracturing rubber cylinder body. The double - headed screw horizontally penetrates through the first assembly hole and the second assembly hole, and the first locking nut and the second locking nut are sleeved outside the double - headed screw for fixation, thereby conveniently connecting and fixing the first sealing sleeve and the second sealing sleeve, increasing the sealing effect of the rubber cylinder on the outside, and preventing liquid from leaking from the outside;

[0016] (2) By providing a first corrosion - resistant layer, a first bonding layer, a reinforcing layer, a second bonding layer, a second corrosion - resistant layer, a third bonding layer, and a wear - resistant layer, the inner wall of the drag - type fracturing rubber cylinder body is coated with a first corrosion - resistant layer, and the outside is coated with a second corrosion - resistant layer, so that the overall corrosion resistance of the rubber cylinder is improved. At the same time, the quality of the rubber cylinder is improved by using the external reinforcing layer and wear - resistant layer, the service life is extended, and it has better wear - resistant effect;

[0017] (3) By providing a drag - type fracturing rubber cylinder body, a splicing groove, and a positioning rod, when the length needs to be adjusted, the positioning rod on the left side of the drag - type fracturing rubber cylinder body can be inserted into the splicing groove on the right side of the first group of drag - type fracturing rubber cylinder bodies for fixation, thereby facilitating quick splicing, extending the length of the rubber cylinder, and being more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front - view sectional structure schematic diagram of the present utility model;

[0019] Figure 2Schematic side view of the connection method between the first sealing sleeve and the first connecting seat of the present utility model;

[0020] Figure 3 Schematic side view of the connection method between the first corrosion-resistant layer and the body of the dragable fracturing rubber cylinder of the present utility model;

[0021] Figure 4 Schematic front view of the connection method between the body of the dragable fracturing rubber cylinder and the positioning rod of the present utility model.

[0022] In the figure: 1. Body of the dragable fracturing rubber cylinder; 2. Splicing groove; 3. First sealing sleeve; 4. First connecting seat; 5. First assembly hole; 6. Double-headed screw; 7. First locking nut; 8. Second sealing sleeve; 9. Second connecting seat; 10. Second assembly hole; 11. Second locking nut; 12. Positioning rod; 13. First corrosion-resistant layer; 14. First bonding layer; 15. Reinforcement layer; 16. Second bonding layer; 17. Second corrosion-resistant layer; 18. Third bonding layer; 19. Wear-resistant layer. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1: Please refer to Figures 1-4 , a dragable fracturing rubber cylinder, including a body 1 of the dragable fracturing rubber cylinder and a first sealing sleeve 3. A first sealing sleeve 3 is arranged outside the body 1 of the dragable fracturing rubber cylinder. A second sealing sleeve 8 is arranged on one side of the first sealing sleeve 3. A first connecting seat 4 is fixedly connected to the left side outside the first sealing sleeve 3. A second connecting seat 9 is fixedly connected to the right side outside the second sealing sleeve 8. A first assembly hole 5 is arranged inside the first connecting seat 4. A second assembly hole 10 is arranged inside the second connecting seat 9. A double-headed screw 6 is horizontally penetrated through the inside of the first assembly hole 5 and the second assembly hole 10. A first locking nut 7 is movably connected to the right side outside the double-headed screw 6. A second locking nut 11 is movably connected to the left side outside the double-headed screw 6;

[0025] The first sealing sleeve 3 and the second sealing sleeve 8 are detachable through the double-headed screw 6, the first locking nut 7 and the second locking nut 11;

[0026] The diameters and lengths of the first sealing sleeve 3 and the second sealing sleeve 8 are the same;

[0027] Specifically, as shown in Figure 1 andFigure 2 As shown, the first sealing sleeve 3 and the second sealing sleeve 8 are respectively sleeved on the outside of the dragable fracturing rubber cylinder body 1. The double-headed screw 6 penetrates horizontally through the first assembly hole 5 and the second assembly hole 10, and the first locking nut 7 and the second locking nut 11 are sleeved on the outside of the double-headed screw 6 for fixation, so as to conveniently connect and fix the first sealing sleeve 3 and the second sealing sleeve 8, increasing the sealing effect of the rubber cylinder on the outside and preventing liquid from leaking from the outside.

[0028] Embodiment 2: A first corrosion-resistant layer 13 is fixedly connected to the inner wall of the dragable fracturing rubber cylinder body 1, a first bonding layer 14 is fixedly connected to the outer wall of the dragable fracturing rubber cylinder body 1, a reinforcement layer 15 is fixedly connected to the outside of the first bonding layer 14, a second bonding layer 16 is fixedly connected to the outside of the reinforcement layer 15, a second corrosion-resistant layer 17 is fixedly connected to the outside of the second bonding layer 16, a third bonding layer 18 is arranged on the outside of the second corrosion-resistant layer 17, and a wear-resistant layer 19 is fixedly connected to the outside of the third bonding layer 18;

[0029] The first corrosion-resistant layer 13 and the second corrosion-resistant layer 17 have the same thickness and are made of the same material;

[0030] Specifically, as Figure 1 and Figure 3 shown, by coating the first corrosion-resistant layer 13 on the inner wall of the dragable fracturing rubber cylinder body 1 and the second corrosion-resistant layer 17 on the outside, the overall corrosion resistance of the rubber cylinder is improved. At the same time, the quality of the rubber cylinder is improved by the external reinforcement layer 15 and wear-resistant layer 19, the service life is prolonged, and the wear-resistant effect is better.

[0031] Embodiment 3: A splicing groove 2 is arranged inside one side of the dragable fracturing rubber cylinder body 1, and a positioning rod 12 is fixedly connected to the other side of the dragable fracturing rubber cylinder body 1;

[0032] The positions of the splicing groove 2 and the positioning rod 12 coincide, there are four groups of splicing grooves 2, and there are four groups of positioning rods 12;

[0033] Specifically, as Figure 1 、 Figure 2 and Figure 4 shown, when length adjustment is required, the positioning rod 12 on the left side of the dragable fracturing rubber cylinder body 1 can be inserted into the splicing groove 2 on the right side of the first group of dragable fracturing rubber cylinder bodies 1 for fixation, so as to facilitate quick splicing and extend the length of the rubber cylinder.

[0034] Working principle: When the utility model is in use, first, when length adjustment is required, the positioning rod 12 on the left side of the dragable fracturing rubber cylinder body 1 can be inserted into the splicing groove 2 on the right side of the first group of dragable fracturing rubber cylinder bodies 1 for fixation, so as to facilitate quick splicing and extend the length of the rubber cylinder. After that, the first sealing sleeve 3 and the second sealing sleeve 8 are respectively sleeved on the outside of the dragable fracturing rubber cylinder body 1. The double-headed screw 6 horizontally penetrates through the first assembly hole 5 and the second assembly hole 10, and the first locking nut 7 and the second locking nut 11 are sleeved on the outside of the double-headed screw 6 for fixation, so as to facilitate the connection and fixation of the first sealing sleeve 3 and the second sealing sleeve 8, increasing the sealing effect of the rubber cylinder on the outside and preventing liquid from leaking from the outside. Finally, the inner wall of the dragable fracturing rubber cylinder body 1 is coated with a first corrosion-resistant layer 13, and the outside is coated with a second corrosion-resistant layer 17, so that the overall corrosion resistance of the rubber cylinder is improved. At the same time, the quality of the rubber cylinder is improved by the external reinforcement layer 15 and wear-resistant layer 19, and the service life is extended, with better wear-resistant effect.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A drag-type fracturing rubber cartridge, comprising a drag-type fracturing rubber cartridge body (1) and a first sealing sleeve (3), characterized in that: The draggable fracturing rubber cartridge body (1) is provided with a first sealing sleeve (3) on the outside, a second sealing sleeve (8) is provided on one side of the first sealing sleeve (3), a first connecting seat (4) is fixedly connected to the left side of the outside of the first sealing sleeve (3), a second connecting seat (9) is fixedly connected to the right side of the outside of the second sealing sleeve (8), a first assembly hole (5) is provided inside the first connecting seat (4), a second assembly hole (10) is provided inside the second connecting seat (9), a double-headed screw (6) is transversely penetrated inside the first assembly hole (5) and the second assembly hole (10), a first locking nut (7) is movably connected to the right side of the outside of the double-headed screw (6), and a second locking nut (11) is movably connected to the left side of the outside of the double-headed screw (6).

2. The drag-type fracturing rubber cartridge according to claim 1, characterized in that: The first sealing sleeve (3) and the second sealing sleeve (8) are detachable via a double-headed screw (6), a first locking nut (7) and a second locking nut (11).

3. The drag-type fracturing rubber cartridge according to claim 1, characterized in that: The inner wall of the draggable fracturing rubber cartridge body (1) is fixedly connected with a first corrosion-resistant layer (13), the outer wall of the draggable fracturing rubber cartridge body (1) is fixedly connected with a first adhesive layer (14), the outside of the first adhesive layer (14) is fixedly connected with a reinforcement layer (15), the outside of the reinforcement layer (15) is fixedly connected with a second adhesive layer (16), the outside of the second adhesive layer (16) is fixedly connected with a second corrosion-resistant layer (17), the outside of the second corrosion-resistant layer (17) is provided with a third adhesive layer (18), and the outside of the third adhesive layer (18) is fixedly connected with a wear-resistant layer (19).

4. The drag-type fracturing rubber cartridge according to claim 1, characterized in that: A splicing groove (2) is provided inside one side of the draggable fracturing rubber cartridge body (1), and a positioning rod (12) is fixedly connected to the other side of the draggable fracturing rubber cartridge body (1).

5. The drag-type fracturing rubber cartridge according to claim 4, characterized in that: The positions of the splicing groove (2) and the positioning rod (12) coincide with each other.

6. The drag-type fracturing rubber cartridge according to claim 4, characterized in that: The splicing grooves (2) are provided in four groups, and the positioning rods (12) are provided in four groups.

7. The drag-type fracturing rubber cartridge according to claim 1, characterized in that: The first sealing sleeve (3) and the second sealing sleeve (8) have the same diameter and length.

8. The drag-type fracturing rubber cartridge according to claim 3, characterized in that: The first corrosion-resistant layer (13) and the second corrosion-resistant layer (17) have the same thickness, and the first corrosion-resistant layer (13) and the second corrosion-resistant layer (17) are made of the same material.

Images