CN115306343B - Vertical pipe flow double sealer - Google Patents
Vertical pipe flow double sealer Download PDFInfo
- Publication number
- CN115306343B CN115306343B CN202211024788.0A CN202211024788A CN115306343B CN 115306343 B CN115306343 B CN 115306343B CN 202211024788 A CN202211024788 A CN 202211024788A CN 115306343 B CN115306343 B CN 115306343B
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- China
- Prior art keywords
- pipe
- spherical shell
- valve seat
- slip
- flow double
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- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000001174 ascending effect Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010959 steel 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
-
- 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
-
- 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
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid pressure
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
Landscapes
- 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)
- Lift Valve (AREA)
Abstract
The invention discloses a vertical pipe flow double sealer, comprising: the inner central pipe is internally provided with an inner central hole; the middle central pipe is sleeved outside the inner central pipe; the outer pipe is sleeved outside the middle central pipe; the outer sealing mechanism is arranged on the outer pipe; the inner sealing mechanism is installed in the inner central tube, when strong airflow gushes out, the valve ascends to the upper valve seat, the airflow ascending channel is closed, the valve seat drives the movable piston on the outer tube to ascend under the action of air pressure, the piston drives the inner expanding head in the slip to ascend in the ascending process, the slip outer sliding block is expanded, the purpose of seat sealing is achieved, and the slip is prevented from rapidly leaping up.
Description
Technical Field
The invention relates to the field of sealers, in particular to a vertical pipe flow double sealer.
Background
When a low-yield gas well is pumped by a swab, an overlarge high-pressure airflow suddenly flows out, the swab is impacted upwards and leaps up at the speed of 300 meters per second, a swab steel wire is twisted if the speed is light, and the swab goes upwards to flush and separate a blowout prevention box if the speed is heavy, so that a blowout accident is caused. At present, the gas well production increasing technology does not have an accident plan design tool, and unsafe accidents can be caused in the pumping process.
Disclosure of Invention
The present invention is directed to provide a vertical pipe flow double sealer to solve the above technical problems.
In order to solve the technical problems, the invention adopts the following technical scheme:
a vertical pipe flow double seal comprising: the inner central pipe is internally provided with an inner central hole; the middle central pipe is sleeved outside the inner central pipe; the outer pipe is sleeved outside the middle central pipe; the outer sealing mechanism is arranged on the outer pipe; and the inner sealing mechanism is arranged in the inner central tube.
Preferably, the inner sealing mechanism includes: the connecting pipe is fixedly arranged in the inner central pipe; the upper valve seat is fixedly connected with the upper end of the connecting pipe and communicated with the central hole; the lower valve seat is fixedly connected with the lower end of the connecting pipe; the valve is positioned in the connecting pipe.
Preferably, the outer sealing mechanism includes: the slip outer sliding block is sleeved on the outer pipe; the slip inner expansion head is sleeved with the slip outer sliding block on the outer pipe; the upper shoulder is sleeved on the outer pipe; the lower shoulder is sleeved on the outer pipe; the sealing rubber is sleeved on the outer pipe, the top of the sealing rubber is fixedly connected with the upper shoulder, and the bottom of the sealing rubber is fixedly connected with the lower shoulder; and the movable piston is sleeved on the outer pipe and is fixedly connected with the lower shoulder.
Preferably, the outer sealing mechanism further includes: the pin, the pin is connected with inner center tube, middle center tube.
Preferably, the upper valve seat is funnel-shaped.
Preferably, the lower valve seat is funnel-shaped.
Preferably, the valve comprises: the bottom of the upper spherical shell is fixedly provided with a slip ring; the upper spherical shell and the lower spherical shell form a complete sphere, the top of the lower spherical shell is provided with a sliding groove along the circumferential direction of the lower spherical shell, and the sliding ring is connected in the sliding groove in a sliding manner; the air inlet pipe is fixedly sleeved with a fixed pipe, the fixed pipe penetrates and is fixedly arranged at the bottom of the lower spherical shell, and the top of the air inlet pipe is fixedly provided with a first bent pipe; the first bent pipe is positioned in the circular ring driving assembly, and the circular ring driving assembly is fixedly connected with the inner wall of the upper spherical shell; and the air outlet pipe penetrates through and is fixedly arranged at the bottom of the lower spherical shell.
Preferably, the circular ring driving assembly includes: the outer wall of the circular ring is fixedly connected with the inner wall of the upper spherical shell; and the bowl-shaped air cups are fixedly arranged on the inner wall of the circular ring in an annular array.
Preferably, the bottom of the air inlet pipe is fixedly provided with a fan cover.
Preferably, a second bent pipe is fixedly arranged at the bottom of the air outlet pipe.
The beneficial effects of the invention are:
1. when strong airflow gushes out, the valve ascends to the upper valve seat, the airflow ascending channel is closed, the valve seat drives the movable piston on the outer pipe to ascend under the action of air pressure, the piston drives the inner expanding head in the slip to ascend in the ascending process, the outer sliding block of the slip expands, the purpose of seat sealing is achieved, and the puller is prevented from rapidly ascending and leaping up.
2. Under the impact of strong air flow, the upper spherical shell in the valve rotates, so that sundries between the upper spherical shell and the upper valve seat can be removed or crushed, the upper spherical shell can tightly block the upper valve seat, and the upper spherical shell can be always in contact with the upper valve seat due to the arrangement of the air inlet pipe.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a valve according to the present invention;
FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;
FIG. 4 is a top view of the invention at the circle in FIG. 2;
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, the vertical tube flow double sealer comprises: an inner central tube 11, wherein an inner central hole 1 is arranged inside the inner central tube 11; the middle central tube 10 is sleeved outside the inner central tube 11; the outer pipe 9 is sleeved outside the middle central pipe 10; the outer sealing mechanism is arranged on the outer tube 9; and the inner sealing mechanism is arranged in the inner central tube 11.
The internal sealing mechanism includes: the connecting pipe 13 is fixedly arranged in the inner central pipe 11; the upper valve seat 12 is in a funnel shape, the upper end of the connecting pipe 13 is fixedly connected with the upper valve seat 12, and the upper valve seat 12 is communicated with the central hole 1; the lower valve seat 16 is funnel-shaped, and the lower valve seat 16 is fixedly connected with the lower end of the connecting pipe 13; the valve 2 and the valve 2 are positioned in the connecting pipe 13.
The outer seal mechanism includes: the slip outer sliding block 3 is sleeved on the outer pipe 9; the slip inner expansion head 4 and the slip outer sliding block 3 are sleeved on the outer pipe 9; the upper shoulder 5 is sleeved on the outer pipe 9; the lower shoulder 7 is sleeved on the outer pipe 9; the sealing rubber 6 is sleeved on the outer pipe 9, the top of the sealing rubber 6 is fixedly connected with the upper shoulder 5, and the bottom of the sealing rubber 6 is fixedly connected with the lower shoulder 7; the movable piston 8 is sleeved on the outer pipe 9, the movable piston 8 is fixedly connected with the lower shoulder 7, and the pin 14 is connected with the inner central pipe 11 and the middle central pipe 10.
The working principle is as follows: when strong airflow gushes out, the valve 2 moves upwards to the upper valve seat 12 to plug the upper valve seat 12, so that the central hole 1 is plugged, the airflow ascending channel is closed, the movable piston 8 on the outer pipe 9 ascends under the action of air pressure, the movable piston 8 drives the slip inner expansion head 4 to ascend through the lower shoulder 7, the sealing rubber 6 and the upper shoulder 5 in the ascending process of the movable piston 8, and the slip outer sliding block 3 expands to achieve the purpose of setting.
Example 2
As shown in fig. 1 to 4, in the case where the other parts are the same as those of embodiment 1, this embodiment is different from embodiment 1 in that: the valve 2 comprises: the bottom of the upper spherical shell 202 is fixedly provided with a slip ring 210; the lower spherical shell 203, the upper spherical shell 202 and the lower spherical shell 203 form a complete sphere, the top of the lower spherical shell 203 is provided with a sliding groove along the circumferential direction of the lower spherical shell 203, and the sliding ring 210 is connected in the sliding groove in a sliding manner; the air inlet pipe 205, the bottom of the air inlet pipe 205 is fixedly provided with a fan housing 206, the air inlet pipe 205 is fixedly sleeved with a fixed pipe 204, the fixed pipe 204 penetrates through and is fixedly arranged at the bottom of the lower spherical shell 203, and the top of the air inlet pipe 205 is fixedly provided with a first bent pipe 212; a circular ring driving component, wherein the first bent pipe 212 is positioned in the circular ring driving component, and the circular ring driving component is fixedly connected with the inner wall of the upper spherical shell 202; a second bent pipe 207 is fixedly arranged at the bottom of the gas outlet pipe 208, and the gas outlet pipe 208 penetrates and is fixedly arranged at the bottom of the lower spherical shell 203; the ring drive assembly includes: the outer wall of the circular ring 201 is fixedly connected with the inner wall of the upper spherical shell 202; a plurality of bowl-shaped air cups 211, the bowl-shaped air cups 211 are fixedly arranged on the inner wall of the circular ring 201 in an annular array.
The working principle is as follows: in the ascending process of the valve 2, the upper spherical shell 202 is in contact with the upper valve seat 12, and due to the blocking effect of the air inlet pipe 205, the sphere formed by the upper spherical shell 202 and the lower spherical shell 203 cannot rotate completely, so that the upper spherical shell 202 is always in contact with the upper valve seat 12, a strong air flow enters the sphere formed by the upper spherical shell 202 and the lower spherical shell 203 through the air inlet pipe 205 and blows the bowl-shaped air cup 211, so that the bowl-shaped air cup 211 drives the circular ring 201 to rotate, the circular ring 201 drives the upper spherical shell 202 to rotate, and impurities between the upper spherical shell 202 and the upper valve seat 12 are crushed or slide away along the spherical surface of the rotating upper spherical shell 202, so that the upper spherical shell 202 blocks the upper valve seat 12 tightly.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Vertical pipe flow double containment, its characterized in that: the method comprises the following steps:
the inner central pipe (11), an inner central hole (1) is arranged in the inner central pipe (11);
the middle central pipe (10), the middle central pipe (10) is sleeved outside the inner central pipe (11);
the outer pipe (9), the said outer pipe (9) is set up and set up in the outside of the middle central tube (10);
the outer sealing mechanism is arranged on the outer pipe (9);
the inner sealing mechanism is arranged in the inner central pipe (11);
the inner seal mechanism includes:
the connecting pipe (13), the said connecting pipe (13) is fixed in inner central tube (11);
the upper valve seat (12), the upper end of the connecting pipe (13) is fixedly connected with the upper valve seat (12), and the upper valve seat (12) is communicated with the inner center hole (1);
the lower valve seat (16), the said lower valve seat (16) is connected with the bottom end of the connecting pipe (13) fixedly;
the valve (2) is positioned in the connecting pipe (13);
the outer seal mechanism includes:
the slip outer sliding block (3), the slip outer sliding block (3) is sleeved on the outer pipe (9);
the slip inner expansion head (4), the slip inner expansion head (4) is sleeved on the outer pipe (9);
the upper shoulder (5), the said upper shoulder (5) is set up on the outer pipe (9);
the lower shoulder (7), the said lower shoulder (7) is set up on the outer pipe (9);
the sealing rubber (6) is sleeved on the outer pipe (9), the top of the sealing rubber (6) is fixedly connected with the upper shoulder (5), and the bottom of the sealing rubber (6) is fixedly connected with the lower shoulder (7);
the movable piston (8) is sleeved on the outer pipe (9), and the movable piston (8) is fixedly connected with the lower shoulder (7).
2. The vertical pipe flow double seal according to claim 1, wherein: the outer seal mechanism further includes:
the pin (14), pin (14) are connected with inner center tube (11), middle center tube (10).
3. The vertical tube flow double seal according to claim 2, wherein: the upper valve seat (12) is funnel-shaped.
4. The vertical pipe flow double seal according to claim 3, wherein: the lower valve seat (16) is shaped like a funnel.
5. The vertical tube flow double seal according to claim 4, wherein: the valve (2) comprises:
the bottom of the upper spherical shell (202) is fixedly provided with a slip ring (210);
the upper spherical shell (202) and the lower spherical shell (203) form a complete sphere, the top of the lower spherical shell (203) is provided with a sliding groove along the circumferential direction of the lower spherical shell (203), and the sliding ring (210) is connected in the sliding groove in a sliding manner;
the air inlet pipe (205) is fixedly sleeved with a fixed pipe (204), the fixed pipe (204) penetrates through and is fixedly arranged at the bottom of the lower spherical shell (203), and the top of the air inlet pipe (205) is fixedly provided with a first bent pipe (212);
the first bent pipe (212) is positioned in the circular ring driving component, and the circular ring driving component is fixedly connected with the inner wall of the upper spherical shell (202);
and the air outlet pipe (208) penetrates through and is fixedly arranged at the bottom of the lower spherical shell (203).
6. The vertical tube flow double seal according to claim 5, wherein: the ring drive assembly includes:
the outer wall of the circular ring (201) is fixedly connected with the inner wall of the upper spherical shell (202);
the air inlet structure comprises a plurality of bowl-shaped air cups (211), and the bowl-shaped air cups (211) are fixedly arranged on the inner wall of the circular ring (201) in an annular array mode.
7. The vertical tube flow double seal according to claim 6, wherein: and a fan cover (206) is fixedly arranged at the bottom of the air inlet pipe (205).
8. The vertical tube flow double seal according to claim 7, wherein: and a second bent pipe (207) is fixedly arranged at the bottom of the air outlet pipe (208).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024788.0A CN115306343B (en) | 2022-08-25 | 2022-08-25 | Vertical pipe flow double sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024788.0A CN115306343B (en) | 2022-08-25 | 2022-08-25 | Vertical pipe flow double sealer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115306343A CN115306343A (en) | 2022-11-08 |
| CN115306343B true CN115306343B (en) | 2023-03-28 |
Family
ID=83865617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211024788.0A Active CN115306343B (en) | 2022-08-25 | 2022-08-25 | Vertical pipe flow double sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115306343B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6394180B1 (en) * | 2000-07-12 | 2002-05-28 | Halliburton Energy Service,S Inc. | Frac plug with caged ball |
| CN2628753Y (en) * | 2002-12-28 | 2004-07-28 | 中国石化胜利油田有限公司滨南采油厂采油二矿 | Double-sealing long-acting oil-well pump |
| CN2903353Y (en) * | 2006-03-06 | 2007-05-23 | 程东海 | Washing well packer |
| CN202000969U (en) * | 2010-12-10 | 2011-10-05 | 中国石油天然气股份有限公司 | Top-lifting-prevention self-unloading liquid drainage tool |
| US10309193B2 (en) * | 2016-02-03 | 2019-06-04 | Premium Tools Llc | Valve apparatus having dissolvable or frangible flapper and method of using same |
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2022
- 2022-08-25 CN CN202211024788.0A patent/CN115306343B/en active Active
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| Publication number | Publication date |
|---|---|
| CN115306343A (en) | 2022-11-08 |
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