CN115370315B - Inflation formula blanking plug of area pressure operation - Google Patents
Inflation formula blanking plug of area pressure operation Download PDFInfo
- Publication number
- CN115370315B CN115370315B CN202211321845.1A CN202211321845A CN115370315B CN 115370315 B CN115370315 B CN 115370315B CN 202211321845 A CN202211321845 A CN 202211321845A CN 115370315 B CN115370315 B CN 115370315B
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- CN
- China
- Prior art keywords
- positioner
- blanking plug
- plug body
- oil pipe
- mechanical switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000000078 claw Anatomy 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000001960 triggered effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention belongs to the technical field of oil and gas equipment, and discloses an expansion type blanking plug for pressurized operation, which comprises a positioner and a blanking plug body, wherein the positioner is arranged in an oil pipe, and a bell mouth structure with the diameter gradually reduced is arranged in the positioner; a mechanical switch, a motor and a hydraulic transmission system which are connected in sequence are arranged in the blanking plug body, a rubber sealing piece is arranged on the blanking plug body, and the rubber sealing piece is connected with the hydraulic transmission system; elastic claws are evenly distributed on the plug body in the circumferential direction, the elastic claws are telescopically arranged on the plug body, and the position of the mechanical switch is opposite to the elastic claws. According to the under-pressure operation expansion type plug, the positioner is arranged in the oil pipe in advance, when the oil pipe needs to be replaced subsequently, the plug body is thrown into the oil pipe and connected with the positioner, and the mechanical switch is triggered in the process to enable the rubber sealing piece to expand to plug the oil pipe, so that uncontrollable manual operation is avoided, a hydraulic transmission system replaces a steel wire to provide setting force, and the setting stability of the plug is improved.
Description
Technical Field
The invention belongs to the technical field of oil and gas equipment, and particularly relates to an expansion type plug for under-pressure operation.
Background
Mechanical type blanking plug in current oil pipe is mostly artifical steel wire and sends into in the oil pipe, and the manual operation has uncontrollable nature and the steel wire provides the setting pressure not enough, and the rubber seal inflation degree leads to the setting unstability inadequately, presses the operation for realizing the gas recovery well area, and the urgent need designs a new blanking plug.
Disclosure of Invention
The present invention aims to solve the above technical problem at least to some extent. Therefore, the invention aims to provide the expansion type plug for the pressurized operation.
The technical scheme adopted by the invention is as follows:
the expansion type plugging device for the pressurized operation comprises a positioner and a plugging device body, wherein the positioner is arranged in an oil pipe, the inside of the positioner penetrates through the upper part and the lower part, and a bell mouth structure with the diameter gradually reduced is arranged in the positioner; the blanking plug comprises a blanking plug body, a mechanical switch, a motor and a hydraulic transmission system which are sequentially connected, wherein a rubber sealing piece is arranged on the blanking plug body and is connected with the hydraulic transmission system; the blanking plug is characterized in that a plurality of elastic claws are evenly distributed on the upper circumference of the blanking plug body, the elastic claws are telescopically arranged on the blanking plug body, the position of the mechanical switch is opposite to that of the elastic claws, and the elastic claws are used for triggering the mechanical switch after being contracted in place and are clamped with the lower end of the positioner.
Preferably, a buffer spring is arranged above the bell mouth structure, and the inner diameter of the buffer spring is smaller than the diameter of a circle surrounded by the outer ends of the elastic claws in a free state.
Preferably, the locator is installed in the oil pipe through slips, and a V-shaped sealing ring is further arranged on the outer wall of the locator.
Preferably, the blanking plug body is provided with a releasing pin hole and a fishing neck.
Preferably, a battery pack is further arranged in the blanking plug body and is connected with the motor.
The beneficial effects of the invention are as follows:
according to the expansion type plug for under-pressure operation, the positioner is arranged in the bottommost oil pipe in advance, the plug body is thrown into the positioner to be connected with the positioner when the oil pipe needs to be replaced subsequently, the mechanical switch is triggered in the process to enable the rubber sealing piece to expand to plug the oil pipe, the uncontrollable performance of manual operation is avoided, a hydraulic transmission system replaces a steel wire to provide setting force, and the setting stability of the plug is improved.
Drawings
Fig. 1 is a schematic structural view of the inflatable packer for operation under pressure according to the present invention.
Fig. 2 is a schematic structural view of another state of the inflatable packer for operation under pressure according to the present invention.
In the figure: 1-an oil pipe; 2-a locator; 3-a plug body; 4-a bell mouth structure; 5-an electric motor; 6-hydraulic transmission system; 7-a rubber seal; 8-elastic claw; 9-a buffer spring; 10-slips; 11-V type seal ring; 12-fishing neck; 13-a battery pack.
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 invention and are not to be construed as limiting the invention. 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 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.
As shown in fig. 1 and 2, the inflatable packer for work under pressure of the embodiment includes a locator 2 and a packer body 3, the locator 2 is installed in an oil pipe 1 through slips 10, the locator 2 is substantially cylindrical, the interior of the locator 2 penetrates up and down, a V-shaped sealing ring 11 for sealing is further arranged on the outer wall of the locator 2, the V-shaped sealing ring 11 keeps the outer wall of the locator 2 sealed with the inner wall of the oil pipe 1, so that fluid can only flow from the interior of the locator 2, and impact corrosion of impurities of the fluid on the slips 10 is prevented. The inside straight section of thick bamboo section, horn mouth structure 4 and the straight section of thick bamboo of second that down includes from last of locator 2, and the diameter of the straight section of thick bamboo section of second is less than first straight section of thick bamboo section, and the diameter of horn mouth structure 4 down reduces gradually from last.
A mechanical switch, a motor 5 and a hydraulic transmission system 6 which are connected in sequence are arranged in the blanking plug body 3, a rubber sealing piece 7 is arranged on the blanking plug body 3, and the rubber sealing piece 7 is connected with the hydraulic transmission system 6; a plurality of elastic claws 8 are uniformly distributed on the periphery of the blanking plug body 3, the elastic claws 8 are telescopically arranged on the blanking plug body 3, and the position of the mechanical switch is opposite to the elastic claws 8; in this embodiment, the number of the elastic claws is three.
The blanking plug body 3 is also internally provided with a battery pack 13, and the battery pack 13 is connected with the motor 5. Mechanical switch promptly, motor 5 and group battery 13 are established ties, horn mouth structure 4 makes blanking plug body 3 get into the straight section of thick bamboo of second in the middle, play 8 inwards shrink when playing the claw 8 through the narrowest department of horn mouth structure 4 and target in place, trigger mechanical switch, the circuit forms the route, make 7 inflation of rubber seal spare seal oil pipe through hydraulic transmission system 6 after motor 5 starts, simultaneously play 8 an instant and wear out automatic stretching out the resetting after locator 2 through the straight section of thick bamboo of second, with 2 lower extreme card of locator.
Be equipped with releasing pin hole and salvage neck 12 on the blanking plug body 3, releasing pin hole is used for connecting the running tool, salvages neck 12 and is used for salvaging blanking plug body 3.
When the operation inflation formula blanking plug is pressed in area is using, locator 2 passes through slips 10 card on oil pipe 1's coupling, drops into plug body 3 from oil pipe through the running tool, and bullet claw 8 is connected with locator 2 card behind buffer spring 9 buffering, triggers mechanical switch closure starter motor 5 simultaneously and makes 7 expansions of rubber seal oil pipe, has reduced the operation complexity of traditional steel wire income blanking plug, has practiced thrift the human cost.
The invention 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 (5)
1. The utility model provides an operation inflation formula blanking plug is pressed in area which characterized in that: the oil pipe plugging device comprises a positioner (2) and a plugging device body (3), wherein the positioner (2) is arranged in an oil pipe (1), the inside of the positioner (2) penetrates through the upper part and the lower part, and a bell mouth structure (4) with the diameter gradually reduced is arranged in the positioner (2); a mechanical switch, a motor (5) and a hydraulic transmission system (6) which are connected in sequence are arranged in the blanking plug body (3), a rubber sealing piece (7) is arranged on the blanking plug body (3), and the rubber sealing piece (7) is connected with the hydraulic transmission system (6); a plurality of elastic claws (8) are uniformly distributed on the periphery of the blanking plug body (3), the elastic claws (8) are telescopically arranged on the blanking plug body (3), the position of the mechanical switch is opposite to that of the elastic claws (8), and the elastic claws (8) are used for triggering the mechanical switch after being contracted in place and are used for being clamped with the lower end of the positioner (2); when the elastic claw passes through the narrowest part of the bell mouth structure, the elastic claw is retracted inwards to be in place, a mechanical switch is triggered, a circuit forms a passage, the rubber sealing element is expanded through a hydraulic transmission system after the motor is started to seal an oil pipe, and meanwhile, the elastic claw penetrates out of the positioner and then extends out of the positioner to be reset and is clamped with the lower end of the positioner.
2. The pressure operated inflatable packer of claim 1, wherein: a buffer spring (9) is arranged above the bell mouth structure (4), and the inner diameter of the buffer spring (9) is smaller than the diameter of a circle surrounded by the outer ends of the elastic claws (8) in a free state.
3. The pressure operated inflatable packer of claim 1, wherein: the locator (2) is installed in the oil pipe through slips (10), and a V-shaped sealing ring (11) is further arranged on the outer wall of the locator (2).
4. The pressure operated inflatable packer of claim 1, wherein: the blanking plug body (3) is provided with a releasing pin hole and a fishing neck (12).
5. The inflatable packer for under-pressure service of claim 1, further comprising: the blanking plug is characterized in that a battery pack (13) is further arranged in the blanking plug body (3), and the battery pack (13) is connected with the motor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211321845.1A CN115370315B (en) | 2022-10-27 | 2022-10-27 | Inflation formula blanking plug of area pressure operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211321845.1A CN115370315B (en) | 2022-10-27 | 2022-10-27 | Inflation formula blanking plug of area pressure operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115370315A CN115370315A (en) | 2022-11-22 |
| CN115370315B true CN115370315B (en) | 2022-12-23 |
Family
ID=84073662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211321845.1A Active CN115370315B (en) | 2022-10-27 | 2022-10-27 | Inflation formula blanking plug of area pressure operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115370315B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679624A (en) * | 1985-09-09 | 1987-07-14 | The Western Company Of North America | Hydraulic setting tool |
| US5240077A (en) * | 1992-06-18 | 1993-08-31 | Dresser Industries, Inc. | Voltage controlled hydraulic setting tool |
| CN202181870U (en) * | 2011-07-22 | 2012-04-04 | 中国石油化工股份有限公司 | Ball seat of hydraulic packer |
| CN202596658U (en) * | 2012-04-20 | 2012-12-12 | 李良川 | Packer for plugging water for fishable insert pipe switch |
| CN104563945A (en) * | 2013-10-21 | 2015-04-29 | 韩成才 | Rod-type pump pipe column bottom plugging device in oil well operation under pressure |
| CN110094180A (en) * | 2018-12-04 | 2019-08-06 | 贵州航天凯山石油仪器有限公司 | A kind of automatically controlled sealer under pressure and method |
| CN111561293A (en) * | 2020-06-23 | 2020-08-21 | 湖北省息壤科技有限公司 | Plugging device for mechanical vibration blockage removal, injection increasing and oil increasing device |
| CN215672122U (en) * | 2021-10-14 | 2022-01-28 | 四川圣诺油气工程技术服务有限公司 | Oil pipe inner plug started by compressed gas |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU763474B2 (en) * | 1999-01-04 | 2003-07-24 | Crinum Ip Pty Ltd | Borehole plugs |
| RU2365740C2 (en) * | 2007-10-30 | 2009-08-27 | Махир Зафар оглы Шарифов | Sharifov's packer system (versions) |
| FR2927650B1 (en) * | 2008-02-20 | 2010-04-02 | Saltel Ind | METHOD AND DEVICE FOR TUBING A PORTION OF FORCE WELL |
| US8113276B2 (en) * | 2008-10-27 | 2012-02-14 | Donald Roy Greenlee | Downhole apparatus with packer cup and slip |
| CN105484695B (en) * | 2015-12-30 | 2018-10-16 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion device suitable for expansion tube drilling well |
| WO2020139459A2 (en) * | 2018-10-31 | 2020-07-02 | Hunting Titan, Inc. | Expanding sleeve for isolation |
| CN110847847A (en) * | 2019-11-13 | 2020-02-28 | 中国地质调查局武汉地质调查中心(中南地质科技创新中心) | Mechanical trigger type packer capable of repeatedly setting and unsetting |
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2022
- 2022-10-27 CN CN202211321845.1A patent/CN115370315B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679624A (en) * | 1985-09-09 | 1987-07-14 | The Western Company Of North America | Hydraulic setting tool |
| US5240077A (en) * | 1992-06-18 | 1993-08-31 | Dresser Industries, Inc. | Voltage controlled hydraulic setting tool |
| CN202181870U (en) * | 2011-07-22 | 2012-04-04 | 中国石油化工股份有限公司 | Ball seat of hydraulic packer |
| CN202596658U (en) * | 2012-04-20 | 2012-12-12 | 李良川 | Packer for plugging water for fishable insert pipe switch |
| CN104563945A (en) * | 2013-10-21 | 2015-04-29 | 韩成才 | Rod-type pump pipe column bottom plugging device in oil well operation under pressure |
| CN110094180A (en) * | 2018-12-04 | 2019-08-06 | 贵州航天凯山石油仪器有限公司 | A kind of automatically controlled sealer under pressure and method |
| CN111561293A (en) * | 2020-06-23 | 2020-08-21 | 湖北省息壤科技有限公司 | Plugging device for mechanical vibration blockage removal, injection increasing and oil increasing device |
| CN215672122U (en) * | 2021-10-14 | 2022-01-28 | 四川圣诺油气工程技术服务有限公司 | Oil pipe inner plug started by compressed gas |
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|---|---|
| CN115370315A (en) | 2022-11-22 |
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