CN110644942B - Simple well sealing device - Google Patents
Simple well sealing device Download PDFInfo
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- CN110644942B CN110644942B CN201911071307.XA CN201911071307A CN110644942B CN 110644942 B CN110644942 B CN 110644942B CN 201911071307 A CN201911071307 A CN 201911071307A CN 110644942 B CN110644942 B CN 110644942B
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- plate
- fixedly connected
- rod
- sealing plate
- sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 230000003139 buffering effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- 244000309464 bull Species 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000001179 sorption measurement Methods 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
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
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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)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention relates to the technical field of well sealing devices and discloses a simple well sealing device which comprises a sealing plate, wherein the middle part of the upper end of the sealing plate is rotatably connected with a threaded rod through a rolling bearing, the lower end of the threaded rod extends to the lower part of the sealing plate and is sleeved with a nut in a threaded manner, the lower end of the sealing plate is fixedly connected with a plurality of uniformly distributed fixing plates, the fixing plates are annularly distributed around the threaded rod, the fixing plates are rotatably connected with an L-shaped rod through a first shaft pin, the horizontal end of the L-shaped rod is provided with a groove, the inner part of the groove is slidably connected with a telescopic rod, and the outer side wall of the excircle of the nut is fixedly connected with a plurality of fixing blocks corresponding to the position of the telescopic rod. The invention can quickly seal the well mouth of the shale gas data well, has simple operation, is convenient for releasing the shale gas in the well, can also buffer the sealing plate during blowout, reduces the impact force on the sealing plate and is convenient for people to use.
Description
Technical Field
The invention relates to the technical field of well sealing devices, in particular to a simple well sealing device.
Background
The shale gas refers to unconventional natural gas attached to a reservoir rock system mainly containing organic-rich shale, is continuously generated biochemical cause gas, thermal cause gas or a mixture of the biochemical cause gas and the thermal cause gas, can exist in natural cracks and pores in a free state, exists on the surfaces of kerogen and clay particles in an adsorption state, and is stored in the kerogen and the asphaltene in a dissolving state in a very small amount, wherein the proportion of the free gas is generally 20-85%.
At present, when people mined shale gas data well, the well mouth needs to be sealed and treated, gas in the well is avoided from generating blowout, and in the prior art, the operation of the sealing device of the well mouth is complex, the shale gas is not convenient to release for mining, and the well mouth sealing device is not convenient for people to use, therefore, the well mouth sealing device is provided.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a wellhead sealing device is complex to operate, and shale gas is inconvenient to release and exploit and is inconvenient to use by people, and provides a simple well sealing device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a simple well sealing device comprises a sealing plate, wherein the middle part of the upper end of the sealing plate is rotatably connected with a threaded rod through a rolling bearing, the lower end of the threaded rod extends to the lower part of the sealing plate and is in threaded sleeve connection with a nut, the lower end of the sealing plate is fixedly connected with a plurality of uniformly distributed fixing plates, the fixing plates are annularly distributed around the threaded rod, the fixing plates are rotatably connected with an L-shaped rod through a first shaft pin, the horizontal end of the L-shaped rod is provided with a groove, the inner part of the groove is slidably connected with a telescopic rod, the outer circle side wall of the nut is fixedly connected with a plurality of fixing blocks corresponding to the positions of the telescopic rod, the fixing blocks are respectively rotatably connected with one ends of the telescopic rods, which are positioned outside the groove, through second shaft pins, one side of the upper end of the sealing plate is fixedly inserted with a casing head, and the lower end of the casing head extends to the lower part of the sealing plate, the casing head and the L-shaped rod are arranged in a staggered mode, and a buffer mechanism is further arranged at the lower end of the sealing plate.
Preferably, buffer gear includes the slide bar that buffer board and two symmetries set up, two the upper end of slide bar all with the lower extreme fixed connection of closing plate, the upper end left and right sides of buffer board all is through-hole and two slide bar sliding connection, two the pole wall of slide bar is all fixed the cup joint has the baffle, two the baffle all is located the top setting of buffer board, two the pole wall of slide bar still all the movable sleeve be equipped with the spring, the upper and lower both ends of spring respectively with baffle and buffer board fixed connection, two the slide bar staggers with a plurality of L shape pole and sets up, the upper end of buffer board seted up with casing head assorted round hole and with casing head sliding connection.
Preferably, the lower ends of the two sliding rods are fixedly connected with limiting plates.
Preferably, the upper ends of the vertical parts of the L-shaped rods are fixedly connected with top plates.
Preferably, the lower end of the sealing plate is fixedly connected with a sealing gasket, the upper end of the threaded rod is fixedly connected with a rotating rod, and the surface of the rotating rod is provided with anti-skid grains.
Preferably, the rod wall of the telescopic rod is located at one end inside the groove and fixedly connected with two symmetrically arranged sliding blocks, and the side wall of the groove is provided with two sliding grooves matched with the sliding blocks.
Compared with the prior art, the invention provides a simple well sealing device, which has the following beneficial effects:
1. this simple and easy shut-in well device, through the mutually supporting of closing plate, threaded rod, nut, a plurality of fixed plate, a plurality of L shape pole, a plurality of telescopic link and a plurality of fixed block that are equipped with, be convenient for seal the well head of shale gas data well, and be convenient for release the shale gas of inside through the sleeve pipe that is equipped with.
2. This simple and easy shut-in well device can improve the leakproofness of closing plate to the well head through the sealed pad that is equipped with, through mutually supporting of two slide bars, two springs, two baffles and buffer board that are equipped with, when the blowout takes place for shale gas data well, can cushion, reduces the impact to the closing plate, and the people of being convenient for use.
The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, the wellhead of the shale gas data well can be quickly sealed, the operation is simple, the shale gas in the well can be conveniently released, the sealing plate can be buffered during blowout, the impact force on the sealing plate is reduced, and the use by people is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a simple well plugging device according to the present invention;
fig. 2 is a schematic view of a connection structure of the telescopic rod and the L-shaped rod in fig. 1.
In the figure: 1 sealing plate, 2 threaded rods, 3 nuts, 4 fixing plates, 5L-shaped rods, 6 telescopic rods, 7 fixing blocks, 8 casing heads, 9 buffer plates, 10 sliding rods, 11 baffle plates, 12 springs, 13 limiting plates, 14 top plates, 15 sealing gaskets, 16 rotating rods and 17 sliding blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, a simple well sealing device comprises a sealing plate 1, a threaded rod 2 is rotatably connected to the middle of the upper end of the sealing plate 1 through a rolling bearing, the lower end of the threaded rod 2 extends to the lower part of the sealing plate 1 and is in threaded sleeve connection with a nut 3, the lower end of the sealing plate 1 is fixedly connected with a plurality of uniformly distributed fixing plates 4, the fixing plates 4 are annularly distributed around the threaded rod 2, the fixing plates 4 are rotatably connected with an L-shaped rod 5 through a first shaft pin, the horizontal end of the L-shaped rod 5 is provided with a groove, the inner part of the groove is slidably connected with a telescopic rod 6, the outer circular side wall of the nut 3 is fixedly connected with a plurality of fixing blocks 7 corresponding to the telescopic rod 6, the fixing blocks 7 are respectively rotatably connected with one ends of the telescopic rods 6 outside the groove through second shaft pins, a casing head 8 is fixedly inserted on one side of the upper end of the sealing plate 1, the lower extreme of casing head 8 extends to the below setting of closing plate 1, and casing head 8 sets up with L shape pole 5 looks mistake, and the lower extreme of closing plate 1 still is equipped with buffer gear, and the inside of casing head 8 is equipped with the shut valve, and this is prior art.
The buffer mechanism comprises a buffer plate 9 and two symmetrically arranged slide bars 10, the upper ends of the two slide bars 10 are fixedly connected with the lower end of the sealing plate 1, the left side and the right side of the upper end of the buffer plate 9 are slidably connected with the two slide bars 10 through holes, the bar walls of the two slide bars 10 are fixedly sleeved with baffle plates 11, the two baffle plates 11 are arranged above the buffer plate 9, the bar walls of the two slide bars 10 are movably sleeved with springs 12, the upper end and the lower end of each spring 12 are fixedly connected with the baffle plates 11 and the buffer plate 9 respectively, the two slide bars 10 are staggered with the plurality of L-shaped bars 5, the upper end of the buffer plate 9 is provided with a round hole matched with the casing head 8 and is slidably connected with the casing head 8, the buffer plate 9 can be applied with elasticity through the two springs 12, when the shale gas data well is sprayed, the two springs 12 can buffer the buffer plate 9, so as to buffer the sealing plate 1, the impact force to the sealing plate 1 is reduced.
The lower ends of the two slide bars 10 are fixedly connected with limiting plates 13, so that the buffer plate 9 is prevented from falling off from the slide bars 10.
The top plate 14 is fixedly connected to the upper ends of the vertical portions of the L-shaped rods 5, so that the area of the L-shaped rods 5, which is offset from the well mouth, can be increased, and the sealing plate 1 is more firmly sealed with the well mouth.
The sealed pad 15 of lower extreme fixedly connected with of closing plate 1 can increase the leakproofness of closing plate 1 and well head, and the upper end fixedly connected with bull stick 16 of threaded rod 2, the surface of bull stick 16 are equipped with anti-skidding line, and the people of being convenient for rotate bull stick 16 and drive threaded rod 2 and rotate.
The pole wall of telescopic link 6 is located the slider 17 that two symmetries of the inside one end fixedly connected with of recess set up, and two and slider 17 assorted spouts have been seted up to the lateral wall of recess, can make telescopic link 6 and L shape pole 5 slide stably, and avoid breaking away from in the telescopic link 6 recess.
In the invention, when the sealing plate is used, the threaded rod 2 is rotated to drive the nut 3 to move upwards, so that the vertical parts of the L-shaped rods 5 rotate downwards, the sealing plate 1 is superposed with the position of a well mouth, the vertical parts of the L-shaped rods 5 are placed in the well, the threaded rod 2 is rotated reversely, the nut 3 can be driven to move downwards, so that the vertical parts of the L-shaped rods 5 rotate upwards, the vertical ends of the L-shaped rods 5 can be abutted against the lower part of the well mouth, downward force can be applied to the sealing plate 1 through the fixing plates 4, the well mouth can be sealed by the sealing plate 1, and the sealing plate is convenient for people to use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a simple well sealing device, includes closing plate (1), its characterized in that, the upper end middle part of closing plate (1) rotates through antifriction bearing and is connected with threaded rod (2), the lower extreme of threaded rod (2) extends to the below of closing plate (1) and nut (3) has been cup jointed to the screw thread, the fixed plate (4) of a plurality of evenly distributed of lower extreme fixedly connected with of closing plate (1) are a plurality of fixed plate (4) are the annular distribution around threaded rod (2), and just a plurality of fixed plate (4) all rotate through first pivot and are connected with L shape pole (5), the horizontal end of L shape pole (5) is seted up flutedly, the inside sliding connection of recess has telescopic link (6), the excircle lateral wall fixedly connected with of nut (3) is a plurality of fixed block (7) that correspond with telescopic link (6) position, and is a plurality of fixed block (7) all rotate through the second axle round pin and be connected with the outside one end that a plurality of telescopic link (6) are located the recess respectively The sealing structure is characterized in that a sleeve head (8) is fixedly inserted into one side of the upper end of the sealing plate (1), the lower end of the sleeve head (8) extends to the lower portion of the sealing plate (1) and is arranged in a staggered mode with the L-shaped rod (5), and a buffering mechanism is further arranged at the lower end of the sealing plate (1).
2. The simple well sealing device according to claim 1, wherein the buffer mechanism comprises a buffer plate (9) and two symmetrically arranged slide rods (10), the upper ends of the two slide rods (10) are fixedly connected with the lower end of the sealing plate (1), the left side and the right side of the upper end of the buffer plate (9) are in sliding connection with the two slide bars (10) through holes, the rod walls of the two slide bars (10) are fixedly sleeved with the baffle plates (11), the two baffle plates (11) are arranged above the buffer plate (9), the rod walls of the two slide bars (10) are movably sleeved with springs (12), the upper end and the lower end of the spring (12) are respectively fixedly connected with the baffle (11) and the buffer plate (9), the two sliding rods (10) and the plurality of L-shaped rods (5) are arranged in a staggered manner, the upper end of the buffer plate (9) is provided with a round hole matched with the casing head (8) and is in sliding connection with the casing head (8).
3. The simple well sealing device according to claim 2, characterized in that the lower ends of the two sliding rods (10) are fixedly connected with a limiting plate (13).
4. The well plugging device according to claim 1, wherein a top plate (14) is fixedly connected to the upper ends of the vertical portions of said L-shaped bars (5).
5. The simple well sealing device according to claim 1, wherein a sealing gasket (15) is fixedly connected to the lower end of the sealing plate (1), a rotating rod (16) is fixedly connected to the upper end of the threaded rod (2), and anti-skid grains are arranged on the surface of the rotating rod (16).
6. The simple well sealing device according to claim 1, wherein two symmetrically arranged sliding blocks (17) are fixedly connected to one end of the rod wall of the telescopic rod (6) located inside the groove, and two sliding grooves matched with the sliding blocks (17) are formed in the side wall of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071307.XA CN110644942B (en) | 2019-11-05 | 2019-11-05 | Simple well sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071307.XA CN110644942B (en) | 2019-11-05 | 2019-11-05 | Simple well sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110644942A CN110644942A (en) | 2020-01-03 |
| CN110644942B true CN110644942B (en) | 2021-12-21 |
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ID=69014154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911071307.XA Active CN110644942B (en) | 2019-11-05 | 2019-11-05 | Simple well sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110644942B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289993B1 (en) * | 1999-06-21 | 2001-09-18 | L. Murray Dallas | Blowout preventer protector and setting tool |
| CN207526462U (en) * | 2017-10-29 | 2018-06-22 | 江苏腾龙石化机械有限公司 | A kind of thermal production well mouth blowout hookup |
| CN207892565U (en) * | 2018-01-21 | 2018-09-21 | 江苏苏盐阀门机械有限公司 | A kind of well mouth sealing device easy to use |
| CN207892563U (en) * | 2018-01-21 | 2018-09-21 | 江苏苏盐阀门机械有限公司 | A kind of safe detection well tree-protector |
| CN208073396U (en) * | 2018-01-18 | 2018-11-09 | 江苏庆海石油机械有限公司 | A kind of well mouth sealing device being easily installed |
| CN109339729A (en) * | 2018-12-06 | 2019-02-15 | 淮安聚友新能源科技有限公司 | A kind of well head capping apparatus of security protection |
-
2019
- 2019-11-05 CN CN201911071307.XA patent/CN110644942B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289993B1 (en) * | 1999-06-21 | 2001-09-18 | L. Murray Dallas | Blowout preventer protector and setting tool |
| CN207526462U (en) * | 2017-10-29 | 2018-06-22 | 江苏腾龙石化机械有限公司 | A kind of thermal production well mouth blowout hookup |
| CN208073396U (en) * | 2018-01-18 | 2018-11-09 | 江苏庆海石油机械有限公司 | A kind of well mouth sealing device being easily installed |
| CN207892565U (en) * | 2018-01-21 | 2018-09-21 | 江苏苏盐阀门机械有限公司 | A kind of well mouth sealing device easy to use |
| CN207892563U (en) * | 2018-01-21 | 2018-09-21 | 江苏苏盐阀门机械有限公司 | A kind of safe detection well tree-protector |
| CN109339729A (en) * | 2018-12-06 | 2019-02-15 | 淮安聚友新能源科技有限公司 | A kind of well head capping apparatus of security protection |
Non-Patent Citations (1)
| Title |
|---|
| 井口防脱式封井器装置的制作与应用;赵春海等;《石化技术》;20190531(第5期);第15页 * |
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| CN110644942A (en) | 2020-01-03 |
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