CN215672122U - Oil pipe inner plug started by compressed gas - Google Patents
Oil pipe inner plug started by compressed gas Download PDFInfo
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- CN215672122U CN215672122U CN202122483633.0U CN202122483633U CN215672122U CN 215672122 U CN215672122 U CN 215672122U CN 202122483633 U CN202122483633 U CN 202122483633U CN 215672122 U CN215672122 U CN 215672122U
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Abstract
The utility model belongs to the technical field of oil and gas field development engineering, and discloses an oil pipe inner blanking plug started by compressed gas, which comprises a guide head, a sealing rubber cylinder, a driving module and an upper joint which are sequentially connected, wherein a compressed gas cylinder, a plug valve connected with an opening of the compressed gas cylinder, a motor for driving the plug valve, a check valve and a battery pack are arranged in the driving module; one end of the check valve is communicated with the plug valve, and the other end of the check valve is communicated with the inside of the sealing rubber cylinder. According to the oil pipe inner blanking plug started by compressed gas, the sealing rubber cylinder and the slips are expanded by using the pressure difference of compressed nitrogen, one-time setting is realized, the risk of manual operation errors is reduced, and the setting success rate is improved. Meanwhile, the pressure of the compressed gas cylinder is adjusted before entering the well, so that the setting force can be adjusted.
Description
Technical Field
The utility model belongs to the technical field of oil and gas field development engineering, and particularly relates to an inner oil pipe plug started by compressed gas.
Background
The existing downhole tubing inner plug is a mechanical plug, is lowered into a well through a steel wire, and is lifted and lowered through the steel wire to realize setting after reaching a setting position. In the process of implementing the utility model, the inventor finds that at least the following problems exist in the prior art: the mechanical plug can only be used for setting a vertical well, cannot be used for an inclined well, and is easy to block in the process of pulling up and pulling down a tool string, so that the setting is performed in advance, and the construction progress is influenced. Highly deviated wells cannot be operated.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the above technical problem at least to some extent. To this end, the utility model aims to provide an in-tubing plug activated by compressed gas.
The technical scheme adopted by the utility model is as follows:
an oil pipe inner plug started by compressed gas comprises a guide head, a sealing rubber cylinder, a driving module and an upper connector which are sequentially connected, wherein a compressed gas cylinder, a plug valve connected with an opening of the compressed gas cylinder, a motor for driving the plug valve, a check valve and a battery pack are arranged in the driving module; one end of the check valve is communicated with the plug valve, and the other end of the check valve is communicated with the inside of the sealing rubber cylinder.
Preferably, a timer is further arranged in the driving module, a touch screen is arranged on the side face of the driving module, and the touch screen is electrically connected with the timer.
Preferably, a metal wire connected with the guide head and the driving module is arranged in the sealing rubber cylinder.
Preferably, slip teeth are arranged on the outer side surface of the sealing rubber cylinder.
Preferably, the slip teeth comprise two groups, each group of slip teeth comprises a plurality of slip teeth which are circumferentially distributed outside the sealing rubber cylinder, one group of slip teeth is arranged close to the guide head, and the other group of slip teeth is arranged close to the driving module.
Preferably, the motor is connected to the cock of the stopcock via a gear pair.
Preferably, the compressed gas cylinder is filled with compressed nitrogen.
Preferably, the driving module and the upper joint are detachably connected.
The utility model has the beneficial effects that:
according to the oil pipe inner blanking plug started by compressed gas, the sealing rubber cylinder and the slips are expanded by using the pressure difference of compressed nitrogen, one-time setting is realized, the risk of manual operation errors is reduced, and the setting success rate is improved. Meanwhile, the pressure of the compressed gas cylinder is adjusted before entering the well, so that the setting force can be adjusted.
Drawings
FIG. 1 is a schematic diagram of the construction of the compressed gas actuated plug in tubing of the present invention.
FIG. 2 is a schematic representation of the compressed gas actuated plug in tubing of the present invention.
In the figure: 1-a guide head; 2-sealing the rubber cylinder; 3-a drive module; 31-plug valve; 32-a motor; 33-a check valve; 34-a battery pack; 35-a timer; 36-a touch screen; 4-upper joint; 5-slip teeth.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the utility model is used, or the orientation or the positional relationship which is conventionally understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the present invention and drawings in the embodiments are understood in specific cases, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious for those skilled in the art that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments.
The utility model is further described with reference to the following figures and specific examples.
As shown in fig. 1 and fig. 2, the plug in oil pipe started by compressed gas of this embodiment, mainly include guide head 1 that connects gradually from bottom to top, sealed packing element 2, drive module 3 and top connection 4, be equipped with compressed gas cylinder in the drive module 3, plug valve 31, motor 32, check valve 33 and group battery 34, plug valve 31 links to each other with the compressed gas cylinder opening, motor 32 is used for driving plug valve 31 switching, motor 32 links to each other with plug valve 31's plug through the gear pair, the opening and closing of plug valve 31 are controlled through the rotation of control plug valve, in the high temperature high pressure environment in the well, mechanical control can more remain stable. The check valve 33 has one end communicating with the plug valve 31 and the other end communicating with the inside of the packing rubber tube 2, and the battery pack 34 is used for supplying power to the motor 32 and other electric components.
Still be equipped with time-recorder 35 in the drive module 3, be equipped with touch-sensitive screen 36 on the drive module 3 side, touch-sensitive screen 36 and time-recorder 35 electric connection. The timer 35 has a timing function and also has a timing function, and can generate a time in accordance with the local place.
A flexible metal wire connected with the guide head 1 and the driving module 3 is arranged in the sealing rubber cylinder 2. Be equipped with slips 5 on the lateral surface of packing element 2, it is specific, slips 5 include two sets ofly, and every slips 5 of group includes that two at least circumferences distribute slips 5 outside packing element 2, and a set of slips 5 is close to guide head 1 and sets up, and another slips 5 of group is close to drive module 3 and sets up.
Compressed nitrogen is sealed in the compressed gas cylinder, and before the tool goes into the well, the time setting is carried out on the blanking plug in the oil pipe through the timer 35, and then the blanking plug in the whole oil pipe is connected with the steel wire through the upper connector 4 and sent into the tool string. After the timing time is up, the motor 32 is started to drive the plug valve 31 to be opened, high-pressure compressed nitrogen is sprayed out from the built-in compressed gas cylinder and flows into the cavity of the sealing rubber cylinder 2 through the check valve 33, the sealing rubber cylinder 2 is expanded to seal the oil pipe, and meanwhile the slip teeth 5 are clamped and anchored on the oil pipe along with the expansion of the sealing rubber cylinder.
This blanking plug in oil pipe makes sealed packing element and slips inflation with compression nitrogen gas pressure differential through the timing mode, once sets up and seals, reduces the human misoperation risk, promotes to set up the success rate. Meanwhile, the pressure of the compressed gas cylinder is adjusted before entering the well, so that the setting force can be adjusted. Compared with the traditional mechanical plug, the plug in the oil pipe has the advantages of simpler structure, smaller overall diameter, reduced chance probability and suitability for highly deviated wells.
The utility model is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (8)
1. The utility model provides a plug in oil pipe that starts through compressed gas which characterized in that: the device comprises a guide head (1), a sealing rubber cylinder (2), a driving module (3) and an upper connector (4) which are connected in sequence, wherein a compressed gas cylinder, a plug valve (31) connected with an opening of the compressed gas cylinder, a motor (32) used for driving the plug valve (31), a check valve (33) and a battery pack (34) are arranged in the driving module (3); one end of the check valve (33) is communicated with the plug valve (31), and the other end of the check valve is communicated with the inside of the sealing rubber cylinder (2).
2. The in-tubing plug of claim 1, wherein: still be equipped with time-recorder (35) in drive module (3), be equipped with touch-sensitive screen (36) on drive module (3) side, touch-sensitive screen (36) and time-recorder (35) electric connection.
3. The in-tubing plug of claim 1, wherein: and a metal wire connected with the guide head (1) and the driving module (3) is arranged in the sealing rubber cylinder (2).
4. The in-tubing plug of claim 3, wherein: slip teeth (5) are arranged on the outer side surface of the sealing rubber cylinder (2).
5. The in-tubing plug of claim 4, wherein: the slip teeth (5) comprise two groups, each group of slip teeth (5) comprises slip teeth (5) which are distributed outside the sealing rubber cylinder (2) in a circumferential mode, one group of slip teeth (5) is arranged close to the guide head (1), and the other group of slip teeth (5) is arranged close to the driving module (3).
6. The in-tubing plug of any one of claims 1-5, wherein: the motor (32) is connected with the cock of the cock valve (31) through a gear pair.
7. The in-tubing plug of any one of claims 1-5, wherein: and compressed nitrogen is sealed in the compressed gas cylinder.
8. The in-tubing plug of any one of claims 1-5, wherein: the driving module (3) is detachably connected with the upper joint (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122483633.0U CN215672122U (en) | 2021-10-14 | 2021-10-14 | Oil pipe inner plug started by compressed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122483633.0U CN215672122U (en) | 2021-10-14 | 2021-10-14 | Oil pipe inner plug started by compressed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215672122U true CN215672122U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122483633.0U Active CN215672122U (en) | 2021-10-14 | 2021-10-14 | Oil pipe inner plug started by compressed gas |
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| CN (1) | CN215672122U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320212A (en) * | 2022-03-10 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug for under-pressure operation |
| CN115370315A (en) * | 2022-10-27 | 2022-11-22 | 四川圣诺油气工程技术服务有限公司 | Inflation formula blanking plug of area pressure operation |
| CN116066011A (en) * | 2023-03-20 | 2023-05-05 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug and use method thereof |
-
2021
- 2021-10-14 CN CN202122483633.0U patent/CN215672122U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320212A (en) * | 2022-03-10 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug for under-pressure operation |
| CN114320212B (en) * | 2022-03-10 | 2022-05-13 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug for operation under pressure |
| CN115370315A (en) * | 2022-10-27 | 2022-11-22 | 四川圣诺油气工程技术服务有限公司 | Inflation formula blanking plug of area pressure operation |
| CN115370315B (en) * | 2022-10-27 | 2022-12-23 | 四川圣诺油气工程技术服务有限公司 | Inflation formula blanking plug of area pressure operation |
| CN116066011A (en) * | 2023-03-20 | 2023-05-05 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug and use method thereof |
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