CN216811553U - Casing sealing device with pilot bit - Google Patents
Casing sealing device with pilot bit Download PDFInfo
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- CN216811553U CN216811553U CN202122889518.3U CN202122889518U CN216811553U CN 216811553 U CN216811553 U CN 216811553U CN 202122889518 U CN202122889518 U CN 202122889518U CN 216811553 U CN216811553 U CN 216811553U
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Abstract
The utility model provides a casing sealing device with a pilot bit. This sleeve pipe sealing device with pilot bit, including the oil jacket tube head, the internal surface of oil jacket tube head is equipped with seal groove and direction annular, install sealing device in the seal groove of oil jacket tube head internal surface, sealing device's interior external surface all is equipped with the seal groove, install the sealing locking ring in the seal groove of sealing device surface, install the guide ring in the direction annular of oil jacket tube head internal surface, this sleeve pipe sealing device with pilot bit through the cooperation of sealing device with the guide ring, can lead to and right the drill bit, makes the drill bit can go into the sleeve pipe smoothly down, avoids the collision damage, the cooperation of guide ring and direction locking ring to and sealing device uses with the cooperation of sealing ring, can make guide ring and sealing device be convenient for install in the oil jacket tube head, guide ring and sealing device simple to operate.
Description
Technical Field
The utility model relates to the technical field of sealing devices, in particular to a sleeve sealing device with a pilot bit.
Background
The tubing head and the casing head are used for hanging a tubing string, sealing the annulus of the tubing string and connecting a Christmas tree, provide an outlet for releasing pressure which can be accumulated between the tubing and the casing string and between the casing string and the casing string, can pump fluid into the well, can induce oil (gas) into the tubing and the casing of the wellhead, and can be used for closing the oil (gas) well if necessary, thereby being an important component of the wellhead device of the Christmas gas well.
The bottom of the tubing head and the casing head usually adopts two secondary sealing structures, and the casing passes through the secondary sealing structure to form sealing with the tubing head or the casing head. However, in the drilling process, the drill bit needs to be tripped down or replaced many times, and when the drill bit is tripped down to perform drilling operation, the drill bit collides with the casing pipe to cause damage.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose of the casing pipe sealing device with the pilot bit, the utility model is realized by the following technical scheme: the utility model provides a sleeve pipe sealing device with pilot bit, includes the oil casing head, the internal surface of oil casing head is equipped with seal groove and direction annular, install sealing device in the seal groove of oil casing head internal surface, sealing device's interior external surface all is equipped with the seal groove, install the sealing locking ring in the seal groove of sealing device surface, install the guide ring in the direction annular of oil casing head internal surface, the lower surface mounting of guide ring has the direction locking ring, all install the sealing member in the seal groove of the internal and external surface of sealing device.
Furthermore, a first locking groove is formed in the position, corresponding to the sealing locking ring, of the inner surface of the oil casing head, and the sealing locking ring is located in the first locking groove.
Furthermore, a sealing grease injection hole I is formed in the oil casing head.
Furthermore, the inner surface of the oil casing head is provided with a sealing grease ring groove, and the surface of the sealing grease ring groove is communicated with the sealing grease injection hole I.
Furthermore, a second locking groove is formed in the position, corresponding to the guiding locking ring, of the inner surface of the oil casing head, and the guiding locking ring is located in the second locking groove.
Furthermore, an opening is formed in the surface of the sealing and locking ring.
Furthermore, a first lifting threaded hole is formed in the lower surface of the sealing device.
Furthermore, a second sealing grease injection hole is formed in the sealing device, one end of the second sealing grease injection hole is communicated with the inner surface of the sealing device, and the other end of the second sealing grease injection hole is communicated with the sealing grease ring groove.
Furthermore, a second hoisting threaded hole is formed in the lower surface of the guide ring.
Furthermore, an opening is formed in the surface of the guide locking ring.
Compared with the prior art, the utility model has the following beneficial effects:
1. this sleeve pipe sealing device with direction drill bit through the cooperation of sealing device and guide ring, can lead to the drill bit and right, makes the drill bit can descend smoothly to the sleeve pipe in, avoids the collision damage, the cooperation of guide ring and direction locking ring to and sealing device and sealing locking ring's cooperation is used, can make guide ring and sealing device be convenient for install in oil casing head, guide ring and sealing device simple to operate.
2. This sleeve pipe sealing device with direction drill bit, through sealing member and sealing device's design, be convenient for seal the clearance between sealing device and oil casing head and the sleeve pipe, sealed fat filling hole one and sealed fat filling hole two with the cooperation of sealed fat annular, be convenient for pour into the clearance between sealing device and oil casing head and the sleeve pipe with sealed fat, can further seal sealing device and oil casing head and sleeve pipe, sealed effectual.
Drawings
FIG. 1 is a schematic diagram of a casing seal arrangement for a pilot bit according to the present invention;
FIG. 2 is a schematic view of the structure of an oil casing head according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 at A according to the present invention;
FIG. 4 is a schematic view of the sealing device of the present invention;
fig. 5 is a schematic view of a guide lock ring structure according to the present invention.
In the figure: 1. a sealing locking ring; 2. an oil casing head; 21. a first locking groove; 22. sealing the grease injection hole I; 23. sealing the fat ring groove; 24. a second locking groove; 3. a sealing device; 31. a first hoisting threaded hole; 32. sealing a grease injection hole II; 4. a guide locking ring; 5. a guide ring; 51. hoisting a threaded hole II; 6. and a seal.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the casing sealing device with pilot bit is as follows:
referring to fig. 1 to 5, a casing sealing device with a pilot bit includes an oil casing head 2, a sealing groove and a pilot ring groove are formed in an inner surface of the oil casing head 2, a sealing device 3 is installed in the sealing groove formed in the inner surface of the oil casing head 2, sealing grooves are formed in inner and outer surfaces of the sealing device 3, a sealing locking ring 1 is installed in the sealing groove formed in an outer surface of the sealing device 3, a pilot ring 5 is installed in the pilot ring groove formed in the inner surface of the oil casing head 2, a pilot locking ring 4 is installed on a lower surface of the pilot ring 5, and a sealing member 6 is installed in the sealing groove formed in the inner and outer surfaces of the sealing device 3.
Through the cooperation of sealing device 3 and guide ring 5, can lead to the drill bit and right, make the drill bit can descend smoothly into the sleeve pipe, avoid the collision damage, the cooperation of guide ring 5 and direction locking ring 4 to and the cooperation of sealing device 3 and sealing locking ring 1 is used, can make guide ring 5 and sealing device 3 be convenient for install in oil casing head 2, guide ring 5 and sealing device 3 simple to operate.
The inner surface of the oil casing head 2 is provided with a locking groove I21 at a position corresponding to the sealing locking ring 1, and the sealing locking ring 1 is positioned in the locking groove I21, so that the sealing device 3 can be conveniently fixed in the oil casing head 2 by using the sealing locking ring 1.
The inside of the oil casing head 2 is provided with a sealing grease injection hole I22 for injecting sealing grease into a gap between the oil casing head 2 and the sealing device 3.
The inner surface of the oil casing head 2 is provided with a sealing grease ring groove 23, the surface of the sealing grease ring groove 23 is communicated with a sealing grease injection hole I22, and sealing grease can be conveniently injected into a gap between the oil casing head 2 and the sealing device 3.
The inner surface of the oil casing head 2 is provided with a second locking groove 24 at a position corresponding to the guide locking ring 4, and the guide locking ring 4 is positioned in the second locking groove 24, so that the guide locking ring 4 is conveniently used for fixing the guide ring 5 in the oil casing head 2.
The surface of the sealing and locking ring 1 is provided with an opening to facilitate the installation of the sealing and locking ring 1 in the locking groove I21.
The lower surface of the sealing device 3 is provided with a first lifting threaded hole 31, so that the sealing device 3 can be conveniently lifted.
And a second sealing grease injection hole 32 is formed in the sealing device 3, one end of the second sealing grease injection hole 32 is communicated with the inner surface of the sealing device 3, and the other end of the second sealing grease injection hole is communicated with the sealing grease ring groove 23, so that sealing grease can be conveniently injected into a gap between the sealing device 3 and the sleeve.
And a second hoisting threaded hole 51 is formed in the lower surface of the guide ring 5, so that the guide ring 5 can be hoisted conveniently.
The surface of the guide locking ring 4 is provided with an opening, so that the guide locking ring 4 can be conveniently installed in the second locking groove 24.
In the installation process, a hoisting screw is connected with a second hoisting threaded hole 51 on the guide ring 5, the guide ring 5 is hoisted, the guide ring 5 is installed in a guide ring groove in the oil casing head 2, and then the hoisting screw is removed; and installing the guide locking ring 4 in a second locking groove 24 in the oil casing head 2 to fix the guide ring 5.
Installing the sealing element 6 in a sealing groove on the inner surface and the outer surface of the sealing device 3, connecting a lifting screw with a lifting threaded hole I31 on the sealing device 3, lifting the sealing device 3, installing the sealing device 3 in the sealing groove in the oil casing head 2, and then removing the lifting screw.
Installing the sealing locking ring 1 in a locking groove I21 in the oil casing head 2 to fix the sealing device 3; the casing passes through the sealing device 3 against the lower end face of the guide ring 5, and the seal 6 realizes a gap between the sealing device 3 and the casing and a gap between the sealing device 3 and the oil casing head 2.
And sealing grease is injected through a first sealing grease injection hole 22 on the oil casing head 2, the sealing grease fills the gap between the sealing device 3 and the oil casing head 2, the sealing grease fills a sealing grease ring groove 23 on the oil casing head 2, and the sealing grease fills the gap between the casing and the sealing device 3 through a second sealing grease injection hole 32 on the sealing device 3.
In the use, go into the drill bit and carry out the drilling operation, the drill bit can go into the sleeve pipe smoothly through the direction and the right of guide ring 5, avoids collision damage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A casing seal with pilot bit, comprising an oil casing head (2), characterized in that: the internal surface of oil casing head (2) is equipped with seal groove and direction annular, install sealing device (3) in the seal groove of oil casing head (2) internal surface, the interior external surface of sealing device (3) all is equipped with the seal groove, install sealing locking ring (1) in the seal groove of sealing device (3) surface, install guide ring (5) in the direction annular of oil casing head (2) internal surface, the lower surface mounting of guide ring (5) has direction locking ring (4), all install sealing member (6) in the seal groove of sealing device (3) interior external surface.
2. A casing seal with a pilot bit according to claim 1, wherein: the oil casing head is characterized in that a first locking groove (21) is formed in the inner surface of the oil casing head (2) at a position corresponding to the sealing locking ring (1), and the sealing locking ring (1) is located in the first locking groove (21).
3. A casing seal with a pilot bit according to claim 1, wherein: and a first sealing grease injection hole (22) is formed in the oil casing head (2).
4. A casing seal with a pilot bit according to claim 3, wherein: the inner surface of the oil casing head (2) is provided with a sealing grease ring groove (23), and the surface of the sealing grease ring groove (23) is communicated with a sealing grease injection hole I (22).
5. A casing seal with a pilot bit according to claim 1, wherein: and a second locking groove (24) is formed in the position, corresponding to the guide locking ring (4), of the inner surface of the oil casing head (2), and the guide locking ring (4) is located in the second locking groove (24).
6. A casing seal with a pilot bit according to claim 1, wherein: the surface of the sealing locking ring (1) is provided with an opening.
7. A casing seal with a pilot bit according to claim 1, wherein: and a first lifting threaded hole (31) is formed in the lower surface of the sealing device (3).
8. A casing seal with a pilot bit according to claim 1, wherein: and a second sealing grease injection hole (32) is formed in the sealing device (3), one end of the second sealing grease injection hole (32) is communicated with the inner surface of the sealing device (3), and the other end of the second sealing grease injection hole is communicated with the sealing grease ring groove (23).
9. A casing seal with a pilot bit according to claim 1, wherein: and a second hoisting threaded hole (51) is formed in the lower surface of the guide ring (5).
10. A casing seal with a pilot bit according to claim 1, wherein: the surface of the guide locking ring (4) is provided with an opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122889518.3U CN216811553U (en) | 2021-11-24 | 2021-11-24 | Casing sealing device with pilot bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122889518.3U CN216811553U (en) | 2021-11-24 | 2021-11-24 | Casing sealing device with pilot bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811553U true CN216811553U (en) | 2022-06-24 |
Family
ID=82049897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122889518.3U Active CN216811553U (en) | 2021-11-24 | 2021-11-24 | Casing sealing device with pilot bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216811553U (en) |
-
2021
- 2021-11-24 CN CN202122889518.3U patent/CN216811553U/en active Active
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