Oil pipe sealing device for sand flushing
By designing a sand-pulling oil pipe sealing device including a three-stage sealant bowl and a limit block structure, the problem of sand pouring out caused by the fall of small oil pipes is solved, and the zero-space sealing between small oil pipes and large oil pipes is achieved, and the sand-pulling efficiency is improved.
Patent Information
- Application Number
- CN202420739908.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-11
AI Technical Summary
During the negative pressure sand-pulling process of coalbed methane wells, the small oil pipe automatically falls as the sand surface decreases, causing the sand to be brought out from the inside of the small oil pipe, affecting the sand flushing efficiency. It is difficult for the prior art to ensure the zero-space seal between the small oil pipe and the large oil pipe.
An oil pipe sealing device for sand washing is designed, including a connecting head, a first compression head, a resistance ring, a first rubber bowl seat body, an adapter groove, a protruding ring, a first rubber bowl body, a second compression head, a second rubber bowl body, a second rubber bowl seat body, a third compression head and a third rubber bowl body. Through the three-stage sealing rubber bowl and a limit block structure, the stability and sealing performance of the oil pipe seal are ensured.
The device ensures zero-space sealing between the small oil pipe and the large oil pipe through a three-stage sealant bowl and limit block structure, prevents sand from gushing out, improves sand flushing efficiency, and is designed to facilitate installation and replacement.
Smart Images
Figure CN222717425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil pipe sealing in a sand blasting process, in particular to an oil pipe sealing device for sand blasting. Background Art
[0002] In the process of negative pressure air sand flushing in coalbed methane wells, the Φ48mm small oil pipe is inside the Φ73mm large oil pipe. As the sand surface decreases, the small oil pipe automatically falls down, and the sediment is continuously taken out of the small oil pipe under the action of pressure. In this process, it is necessary to ensure that there is no gap between the Φ48mm small oil pipe and the Φ73mm large oil pipe to prevent the sediment from gushing out of the gap and affecting the sand flushing efficiency. The sand flushing efficiency can only be guaranteed under the premise of ensuring good sealing of the oil pipe. Therefore, it is urgent to improve and improve the above problems. Summary of the invention
[0003] The utility model aims to provide an oil pipe sealing device for sand flushing, so as to solve the problem in the above background technology that the small oil pipe automatically falls down as the sand surface decreases, and the settled sand is continuously taken out from the inside of the small oil pipe under the action of pressure.
[0004] To achieve the above object, the utility model provides the following technical solution: an oil pipe sealing device for sand flushing, comprising a connector, a first pressing head is provided on the left surface of the connector, and a resistance ring is provided on the left surface of the first pressing head;
[0005] The first rubber bowl seat body is installed on the outer surface of the abutment ring, an adaption groove is provided inside the first rubber bowl seat body, a protruding ring is provided inside the adaption groove, the first rubber bowl body is provided on the outer surface of the protruding ring, and the right side surface of the first rubber bowl body abuts against the left side surface of the first clamping head.
[0006] Preferably, a second pressing head is arranged on the left side of the first rubber bowl seat body, and a second rubber bowl body is arranged on the left side surface of the second pressing head.
[0007] Preferably, a second rubber bowl seat body is arranged on the left side surface of the second rubber bowl body, and a third pressing head is arranged on the left side of the second rubber bowl seat body.
[0008] Preferably, a third rubber bowl body is disposed on the left side surface of the third pressing head, and a third rubber bowl seat body is disposed on the left side surface of the third rubber bowl body.
[0009] Preferably, a first limiting block is fixedly connected to the top surface of the first pressing head, and an insert block is arranged inside the first limiting block.
[0010] Preferably, a second limiting block is disposed on the top surface of the third rubber bowl seat body, and the second limiting block and the insert block are adapted to each other.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The oil pipe sealing device for sand flushing is provided with a first clamping head, a resistance ring, a first rubber bowl seat body, an adapting groove, a protruding ring, a first rubber bowl body, a second clamping head, a second rubber bowl body, a second rubber bowl seat body, a third clamping head and a third rubber bowl body. When in use, the first rubber bowl body and the protruding ring are first installed on the first rubber bowl seat body and the adapting groove, and the first rubber bowl body and the protruding ring are tightly fixed on the first rubber bowl seat body by using the first clamping head, and then the second clamping head, the second rubber bowl body, the second rubber bowl seat body and the third clamping head and the third rubber bowl body are installed in the same way, and the installation is repeated three times. Three sets of rubber bowl bodies, and then connect the entire oil pipe sealing device to the top of the Φ48mm oil pipe through the third rubber bowl seat body, and send it into the inside of the Φ73mm oil pipe to complete the installation. Connect the oil pipe sealing device on the top of the small oil pipe. As the sand surface drops, the small oil pipe can fall freely under the action of gravity. The outer diameter of the first rubber bowl body of the oil pipe sealing device is designed to be Φ62mm, which is the same as the inner diameter of the Φ73mm oil pipe. The oil pipe sealing device is designed with a first rubber bowl seat body and a first clamping head to ensure that the first rubber bowl body is installed tightly and is easy to replace. At the same time, the oil pipe sealing device adopts a three-stage sealing rubber bowl to ensure sealing performance.
[0013] The oil pipe sealing device for sand flushing is provided with a first limit block, an insert block and a second limit block. When in use, after the overall sealing device is assembled, the first limit block and the second limit block are installed on the surface of the first clamping head and the outer surface of the third rubber bowl seat body, and then the insert block is installed inside the first limit block and the insert block, to ensure its stability after assembly. The overall stability is good, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the disassembly of the first rubber bowl seat body and the first pressing head structure of the utility model;
[0016] Figure 3 It is a schematic diagram of the disassembly of the first rubber bowl seat body and the first pressing head structure of the utility model;
[0017] Figure 4 It is a three-dimensional schematic diagram of the plug-in block structure of the utility model.
[0018] In the figure: 1. Connecting head; 2. First clamping head; 3. Resistance ring; 4. First rubber bowl seat body; 5. Adapter groove; 6. Protruding ring; 7. First rubber bowl body; 8. Second clamping head; 9. Second rubber bowl body; 10. Second rubber bowl seat body; 11. Third clamping head; 12. Third rubber bowl body; 13. Third rubber bowl seat body; 14. First limit block; 15. Insert block; 16. Second limit block. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-4 , an embodiment provided by the utility model:
[0021] A tubing sealing device for sand flushing, the first rubber bowl seat body 4, the first clamping head 2 and the first rubber bowl body 7 used in the present application are all products that can be directly purchased on the market, and their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here, including a connector 1, the left surface of the connector 1 is provided with a first clamping head 2, the left surface of the first clamping head 2 is provided with a resistance ring 3, the top surface of the first clamping head 2 is fixedly connected with a first limit block 14, the interior of the first limit block 14 is provided with an insert block 15, the top surface of the third rubber bowl seat body 13 is provided with a second limit block 16, the second limit block 16 and the insert block 15 are adapted to each other, when the overall sealing device is assembled, the first limit block 14 and the second limit block 16 are installed on the surface of the first clamping head 2 and the outer surface of the third rubber bowl seat body 13, and then the insert block 15 is installed inside the first limit block 14 and the insert block 15, to ensure its stability after assembly, and the overall stability is good;
[0022] A first rubber bowl seat body 4 is arranged on the outer surface of the abutting ring 3, an adapting groove 5 is provided inside the first rubber bowl seat body 4, a protruding ring 6 is arranged inside the adapting groove 5, a first rubber bowl body 7 is arranged on the outer surface of the protruding ring 6, the right side surface of the first rubber bowl body 7 abuts against the left side surface of the first pressing head 2, a second pressing head 8 is arranged on the left side of the first rubber bowl seat body 4, a second rubber bowl body 9 is arranged on the left side surface of the second pressing head 8, a second rubber bowl seat body 10 is arranged on the left side surface of the second rubber bowl body 9, a third pressing head 11 is arranged on the left side of the second rubber bowl seat body 10, a third rubber bowl body 12 is arranged on the left side surface of the third pressing head 11, and a third rubber bowl seat body 13 is arranged on the left side surface of the third rubber bowl body 12. Firstly, the first rubber bowl body 7 and the protruding ring 6 are arranged on the first rubber bowl seat body 4 and the adapting groove 5, and by using the first pressing head 2 Fix the first rubber bowl body 7 and the protruding ring 6 tightly on the first rubber bowl seat body 4, and then install the second clamping head 8, the second rubber bowl body 9, the second rubber bowl seat body 10 and the third clamping head 11 and the third rubber bowl body 12 in the same way. Repeat the installation three times to install the three sets of rubber bowl bodies, and then connect the entire oil pipe sealing device to the top of the Φ48mm oil pipe through the third rubber bowl seat body 13, and send it into the Φ73mm oil pipe to complete the installation. Connect the oil pipe sealing device to the top of the small oil pipe. As the sand surface drops, the small oil pipe can fall freely under the action of gravity. The outer diameter of the first rubber bowl body 7 of the oil pipe sealing device is designed to be Φ62mm, which is the same as the inner diameter of the Φ73mm oil pipe. The oil pipe sealing device is designed with a first rubber bowl seat body 4 and a first clamping head 2 to ensure that the first rubber bowl body 7 is installed tightly and is easy to replace. At the same time, the oil pipe sealing device adopts a three-stage sealing rubber bowl to ensure sealing performance.
[0023] Working principle: When the staff uses this device, first connect the device to an external power supply to provide power support for the device. When in use, first install the first rubber bowl body 7 and the protruding ring 6 on the first rubber bowl seat body 4 and the adapter groove 5, and use the first clamping head 2 to tightly fix the first rubber bowl body 7 and the protruding ring 6 on the first rubber bowl seat body 4, and then install the second clamping head 8, the second rubber bowl body 9, the second rubber bowl seat body 10 and the third clamping head 11 and the third rubber bowl body 12 in the same way. Repeat the installation three times to install three groups of rubber bowl bodies, and then connect the entire oil pipe sealing device to the top of the Φ48mm oil pipe through the third rubber bowl seat body 13, and send it into the Φ73mm oil pipe to complete the installation. When the overall sealing device is assembled, install the first limit block 14 and the second limit block 16 on the surface of the first clamping head 2 and the outer surface of the third rubber bowl seat body 13, and then install the plug 15 into the first limit block 14 and the plug 15. The above is all the working principles of the utility model.
[0024] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. An oil pipe sealing device for sand flushing, comprising a connector (1), a first pressing head (2) being arranged on the left side surface of the connector (1), characterized in that: A resistance ring (3) is provided on the left side surface of the first pressing head (2); A first rubber bowl seat body (4), the first rubber bowl seat body (4) is mounted on the outer surface of the abutment ring (3), an adaption groove (5) is provided inside the first rubber bowl seat body (4), a protruding ring (6) is provided inside the adaption groove (5), a first rubber bowl body (7) is provided on the outer surface of the protruding ring (6), and the right side surface of the first rubber bowl body (7) abuts against the left side surface of the first pressing head (2).
2. The oil pipe sealing device for sand flushing according to claim 1, characterized in that: A second pressing head (8) is arranged on the left side of the first rubber bowl seat body (4), and a second rubber bowl body (9) is arranged on the left side surface of the second pressing head (8).
3. The oil pipe sealing device for sand flushing according to claim 2, characterized in that: A second rubber bowl seat body (10) is arranged on the left side surface of the second rubber bowl body (9), and a third pressing head (11) is arranged on the left side of the second rubber bowl seat body (10).
4. The oil pipe sealing device for sand flushing according to claim 3, characterized in that: A third rubber bowl body (12) is arranged on the left side surface of the third pressing head (11), and a third rubber bowl seat body (13) is arranged on the left side surface of the third rubber bowl body (12).
5. The oil pipe sealing device for sand flushing according to claim 1, characterized in that: A first limiting block (14) is fixedly connected to the top surface of the first pressing head (2), and an insert block (15) is arranged inside the first limiting block (14).
6. The oil pipe sealing device for sand flushing according to claim 4, characterized in that: A second limiting block (16) is provided on the top surface of the third rubber bowl seat body (13), and the second limiting block (16) and the inserting block (15) are adapted to each other.