CN219452060U - Mechanical infinite time-delay toe end sliding sleeve - Google Patents
Mechanical infinite time-delay toe end sliding sleeve Download PDFInfo
- Publication number
- CN219452060U CN219452060U CN202320299276.9U CN202320299276U CN219452060U CN 219452060 U CN219452060 U CN 219452060U CN 202320299276 U CN202320299276 U CN 202320299276U CN 219452060 U CN219452060 U CN 219452060U
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- sliding sleeve
- sleeve
- reversing
- sealing plug
- toe end
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model provides a mechanical infinite delay toe end sliding sleeve, which comprises a cylindrical sealing plug, a blasting valve and a main body, wherein a central tube is arranged on the main body, an upper joint is arranged on one side of the central tube, the upper joint is arranged on the upper side of the main body, an outer cylinder sleeve is arranged on the main body, the outer cylinder sleeve is arranged on one side of the upper joint, the upper side of the central tube is provided with the sliding sleeve, one side of the sliding sleeve is provided with a shear pin, the shear pin is arranged on the upper side of the central tube, one side of the shear pin is provided with a spring, and the spring is arranged on the upper side of the central tube, so that the process requirement of pressure test of a shaft according to a standard flow can be realized when the mechanical infinite delay toe end sliding sleeve is used; the infinite delay test function can be realized. The method solves the defects of limited time delay of the sliding sleeve and low fault tolerance rate in a throttling time delay mode, is safe and reliable, and saves the operation cost.
Description
Technical Field
The utility model relates to the technical field of toe end sliding sleeves, in particular to a mechanical infinite delay toe end sliding sleeve.
Background
Along with the gradual lengthening of the horizontal well depth, the operation capability of the coiled tubing is obviously influenced by well depth, horizontal sections and well track conditions, and the method cannot adapt to the economic and efficient development trend and technical development requirements of the shale gas well with deep and long horizontal sections in the future, and the application of toe end sliding sleeve technology is gradually promoted.
The existing toe end sliding sleeve cannot conduct sleeve pressure test according to a standard flow when in use. The toe end sliding sleeve time delay mechanism realizing time delay opening in a throttling mode can be accompanied with pressure drop, when pressure test is carried out, the pressure test process and the running condition of the sliding sleeve cannot be accurately controlled, the sleeve pressure test conclusion is affected, the time delay time is limited, the fault tolerance rate is low, and the risk of early opening is provided.
Disclosure of Invention
The utility model aims to design a mechanical infinite delay toe end sliding sleeve, which can realize infinite delay test function.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the utility model provides a mechanical type infinitely time delay toe end sliding sleeve, its characterized in that, including cylinder sealing plug, blasting valve and main part, be equipped with the center tube in the main part, center tube one side is equipped with the top connection, the top connection is installed in the main part upside, be equipped with outer cylinder liner in the main part, outer cylinder liner is installed in top connection one side, the center tube upside is equipped with the sliding sleeve, sliding sleeve one side is equipped with the shear pin, the shear pin is installed in the center tube upside, shear pin one side is equipped with the spring, the spring is installed in the center tube upside, spring one side is equipped with the switching-over cover, the switching-over cover one side is equipped with the switching-over round pin, the switching-over round pin is installed in the center tube upside, the cylinder sealing plug is installed in switching-over round pin one side, the cylinder sealing plug is installed in one side of cylinder sealing plug, the blasting valve is installed in the main part, one side that the upper connection was kept away from to the main part is equipped with down the joint, the one side of blasting valve is installed in the blasting valve.
As an improvement, a sealing rubber ring is arranged in the cylindrical sealing plug, and one side of the cylindrical sealing plug is connected with a reversing sleeve and a spring.
As an improvement, the outer cylinder sleeve is in threaded connection with the upper joint and the central tube.
The beneficial effects of the utility model are as follows: the mechanical infinite delay toe end sliding sleeve can meet the process requirement of pressure test of a shaft according to a standard flow when in use; the method can realize infinite delay test function, overcomes the defects of limited delay time of the sliding sleeve in a throttling delay mode and low fault tolerance rate, is safe and reliable, and saves operation cost.
Drawings
FIG. 1 is a schematic illustration of a mechanical infinite delay toe end sliding sleeve according to the present utility model.
Reference numeral control table:
1. an upper joint; 2. a central tube; 3. an outer cylinder sleeve; 4. a sliding sleeve; 5. shearing nails; 6. a spring; 7. a reversing sleeve; 8. a reversing pin; 9. a cylindrical sealing plug; 10. a burst valve; 11. a lower joint; 12. a main body.
Detailed Description
In order to make the contents of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in FIG. 1, the mechanical infinite delay toe end sliding sleeve can meet the process requirement of pressure test of a shaft according to a standard flow when in use; the infinite delay test function can be realized. The device solves the defects that the time delay duration of a sliding sleeve is limited in a throttling time delay mode, the fault tolerance is low, the device is safe and reliable, and the operation cost is saved, and the device comprises a cylindrical sealing plug 9, a blasting valve 10 and a main body 12, wherein a central tube 2 is arranged on the main body 12, an upper joint 1 is arranged on one side of the central tube 2, the upper joint 1 is arranged on the upper side of the main body 12, an outer cylinder sleeve 3 is arranged on the main body 12, the outer cylinder sleeve 3 is in threaded connection with the upper joint 1 and the central tube 2 to form a cavity, the cylindrical sealing plug 9 is inserted into a middle communicating cavity formed by drilling on the side of the central tube 2, the cavity is divided into an inner liquid inlet cavity and an outer liquid inlet cavity, the sliding sleeve 4 is arranged in the inner liquid inlet cavity, the left side of the cylindrical sealing plug 9 is connected with a reversing sliding sleeve 4 and a spring 6, and the reversing pin 8 is positioned at a reversing groove short groove of the central tube 2.
The outer cylinder sleeve 3 is installed on one side of the upper joint 1, the upper side of the central tube 2 is provided with a sliding sleeve 4, one side of the sliding sleeve 4 is provided with a shear pin 5, the shear pin 5 is installed on the upper side of the central tube 2, one side of the shear pin 5 is provided with a spring 6, the spring 6 is installed on the upper side of the central tube 2, one side of the spring 6 is provided with a reversing sleeve 7, the reversing sleeve 7 is installed on the central tube 2, one side of the reversing sleeve 7 is provided with a reversing pin 8, and the reversing pin 8 is installed on the upper side of the central tube 2.
The cylinder sealing plug 9 of installation is installed in reversing pin 8 one side, is provided with sealed rubber ring in the cylinder sealing plug 9, reversing sleeve 7 and spring 6 are connected to cylinder sealing plug 9 one side, and cylinder sealing plug 9 installs in center tube 2 upside, and blasting valve 10 is installed in cylinder sealing plug 9 one side, and blasting valve 10 installs on main part 12, and main part 12 is kept away from one side of upper joint 1 and is equipped with lower joint 11, and lower joint 11 installs in one side of blasting valve 10.
When the pressure test device works, when the pressure test of a first shaft is carried out, the explosion valve 10 is broken firstly, liquid enters the outer liquid inlet cavity, at the moment, the cylindrical sealing plug 9 moves leftwards under the pressure test effect, the reversing pin 8 is positioned in the outermost short groove, and when the reversing pin moves to the end of the short groove, the cylindrical sealing plug 9 is still positioned in the middle communication cavity, the pressure test is continuously improved, at the moment, the cylindrical sealing plug 9 does not move continuously, the liquid cannot enter the inner liquid inlet cavity, and the sliding sleeve shear pin is not subjected to the pressure effect.
After the first pressure test is finished, the reversing sleeve 7 pushes the cylindrical sealing plug 9 to reset under the action of the spring 6, and under the action of the reversing groove of the central tube 2, the reversing pin 8 enters the other short groove, at the moment, the inner liquid inlet cavity is still in a sealed state, and liquid does not enter the inner liquid inlet cavity.
When pressure test is conducted for the second time, liquid enters the outer liquid inlet cavity, at the moment, the cylindrical sealing plug 9 moves leftwards under the action of pressure test pressure, at the moment, the reversing pin 8 is located in the outermost short groove, when the reversing pin moves to the terminal of the short groove, the cylindrical sealing plug 9 is still located in the middle communication cavity, the pressure test pressure is continuously improved, at the moment, the cylindrical sealing plug 9 does not move any more, the liquid cannot enter the inner liquid inlet cavity, and the sliding sleeve 4 and the shear pin 5 are not affected by pressure.
After the second pressure test is finished, the reversing sleeve 7 pushes the cylindrical sealing plug 9 to reset under the action of the spring 6, and the reversing pin 8 enters the long groove under the action of the central reversing groove. At this time, the inner liquid inlet cavity is still in a sealed state, and liquid does not enter the inner liquid inlet cavity.
When the sliding sleeve 4 is driven, liquid enters the outer liquid inlet cavity, the cylindrical sealing plug 9 moves leftwards under the action of pressure test, and because the reversing pin 8 is positioned in the long groove at the moment, the cylindrical sealing plug 9 is pushed out of the middle communication cavity, the liquid in the outer liquid inlet cavity enters the inner liquid inlet cavity at the moment, the sliding sleeve 4 is acted by the liquid pressure, after the pressure is continuously increased, the sliding sleeve 4 and the shear pin 5 are sheared, the sliding sleeve 4 moves leftwards, and the opening action of the sliding sleeve 4 is completed.
The above description is illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, but is to be accorded the full scope of the claims.
Claims (3)
1. The utility model provides a mechanical infinite delay toe end sliding sleeve, its characterized in that includes cylinder sealing plug (9), blasting valve (10) and main part (12), be equipped with center tube (2) on main part (12), center tube (2) one side is equipped with top connection (1), top connection (1) are installed in main part (12) upside, be equipped with outer cylinder liner (3) on main part (12), outer cylinder liner (3) are installed in top connection (1) one side, center tube (2) upside is equipped with sliding sleeve (4), sliding sleeve (4) one side is equipped with shear pin (5), shear pin (5) are installed in center tube (2) upside, shear pin (5) one side is equipped with spring (6), spring (6) are installed in center tube (2) upside, spring (6) one side is equipped with reversing sleeve (7), reversing pin (8) are equipped with on one side reversing sleeve (7) on center tube (2), reversing pin (8) are installed on center tube (2) side, reversing pin (9) are installed on one side of cylinder sealing plug (9), the explosion valve (10) is arranged on the main body (12), a lower joint (11) is arranged on one side, far away from the upper joint (1), of the main body (12), and the lower joint (11) is arranged on one side of the explosion valve (10).
2. The mechanical infinite delay toe end sliding sleeve according to claim 1, wherein a sealing rubber ring is arranged in the cylindrical sealing plug (9), and one side of the cylindrical sealing plug (9) is connected with a reversing sleeve (7) and a spring (6).
3. A mechanical infinite delay toe end sliding sleeve according to claim 1, characterized in that the outer sleeve (3) is screwed with the upper joint (1) and the central tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320299276.9U CN219452060U (en) | 2023-02-23 | 2023-02-23 | Mechanical infinite time-delay toe end sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320299276.9U CN219452060U (en) | 2023-02-23 | 2023-02-23 | Mechanical infinite time-delay toe end sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219452060U true CN219452060U (en) | 2023-08-01 |
Family
ID=87384820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320299276.9U Active CN219452060U (en) | 2023-02-23 | 2023-02-23 | Mechanical infinite time-delay toe end sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219452060U (en) |
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2023
- 2023-02-23 CN CN202320299276.9U patent/CN219452060U/en active Active
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