CN215332749U - Adjustable seal cover tube head - Google Patents
Adjustable seal cover tube head Download PDFInfo
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- CN215332749U CN215332749U CN202121775341.8U CN202121775341U CN215332749U CN 215332749 U CN215332749 U CN 215332749U CN 202121775341 U CN202121775341 U CN 202121775341U CN 215332749 U CN215332749 U CN 215332749U
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- head
- sealing
- hanger
- casing
- sealing head
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Abstract
The utility model discloses an adjustable sealing casing head, which comprises a casing head body and an oil pipe hanger, wherein the casing head body is provided with a casing pipe; the oil pipe hanger comprises a hanger body, a first sealing head, a second sealing head and a telescopic supporting piece; the hanger body is sleeved in the casing head body, a first sealing head is arranged close to the fluid inlet end, and a second sealing head is arranged close to the fluid outlet end; a support column is arranged on the inner wall of the casing head body, and a mounting hole is formed in the support column; one end of the telescopic support piece is arranged on the end face, facing the second sealing head, of the first sealing head, and the other end of the telescopic support piece is abutted against the end face, facing the first sealing head, of the support column; under the impact action of fluid, the telescopic supporting piece is tightly pressed on the supporting column, so that the stability of the hanger body mounted on the casing head body is ensured; the telescopic length of the telescopic support piece can be adjusted, so that the position of the hanger body can be conveniently adjusted according to needs; the second sealing head is detachably connected with the hanger body, and the structure is simple and the connection is convenient.
Description
Technical Field
The utility model relates to the technical field of fittings of a well inlet device, in particular to an adjustable sealing sleeve head.
Background
The casing head is used for fixing a well mouth of a well, connecting a well mouth casing string, supporting the gravity of a technical casing and an oil layer casing, sealing an annular space between layers of pipes, providing transitional connection for installing a blowout preventer, a tubing head and a Christmas tree, and performing construction operations such as mud compensation, mud extrusion, monitoring, balance liquid filling and the like through two side ports on the casing head body. The casing head is used for supporting the weight of the inner casing; secondly, bearing the weight of the wellhead device; thirdly, forming pressure seal between the inner layer sleeve and the outer layer sleeve; fourthly, an outlet is provided for the pressure possibly accumulated between the inner and outer casing pipes or the liquid is pumped into the well in case of emergency; fifthly, special operation in the aspect of drilling and production process can be carried out. The prior casing head has fixed structure and single function, the casing head is internally provided with an oil pipe hanger which forms sealing connection with the casing head through a sealing ring on the outer wall of the casing head, but has no matched positioning arrangement, and the position of the oil pipe hanger can not be adjusted according to the use requirement, thus being not suitable for different use requirements,
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problems that: the utility model provides an adjustable sealed casing head, the leakproofness is good and can adjust the position of oil pipe hanger according to the demand.
In order to solve the main technical problems, the following technical scheme is adopted:
an adjustable sealing casing head comprises a casing head body and an oil pipe hanger; the oil pipe hanger comprises a hanger body, a first sealing head, a second sealing head and a telescopic supporting piece; the hanger body is sleeved in the casing head body, a first sealing head is arranged close to the fluid inlet end, and a second sealing head is arranged close to the fluid outlet end; a support column is arranged on the inner wall of the casing head body, and a mounting hole capable of enabling the hanger body to axially move back and forth along the casing head body is formed in the support column; one end of the telescopic supporting piece is installed on the end face, facing the second sealing head, of the first sealing head, and the other end of the telescopic supporting piece abuts against the end face, facing the first sealing head, of the supporting column.
Preferably, the telescopic supporting pieces are multiple and surround the hanger body for one circle; the telescopic supporting piece comprises an outer cylinder, an inner cylinder and a locking bolt; the outer cylinder body is sleeved outside the inner cylinder body, and the inner cylinder body can slide relative to the outer cylinder body; the locking bolt is in threaded connection with the outer cylinder body, and one end of the locking bolt can abut against the circumferential surface of the inner cylinder body; one end of the inner cylinder extending out of the outer cylinder is arranged on the first sealing head.
Preferably, grooves corresponding to the telescopic supporting pieces one to one are formed in the surface of the supporting column; one end of the outer cylinder body is inserted into the groove in an abutting mode.
Preferably, the inner wall of the casing head is provided with internal threads; the support column is installed on the internal thread in a threaded mode.
Preferably, the first sealing head comprises a first fixed disc and a first sealing ring; the hanger body is arranged on a first fixed disk, and a through hole matched with one end of the hanger body is formed in the first fixed disk; first sealing washer encircles first fixed disk a week, and the diameter and the internal diameter looks adaptation of casing head body.
Preferably, the second sealing head comprises a second fixed disc and a second sealing ring; the second sealing ring surrounds the second fixed disc for one circle, and the diameter of the second sealing ring is matched with the inner diameter of the casing head body; the second fixed disc is provided with a threaded hole; and the periphery of the other end of the hanger body is provided with an external thread matched with the threaded hole.
Preferably, when the telescopic support is at the minimum telescopic length, the distance between the second sealing head and the support column is greater than or equal to the maximum telescopic length of the telescopic support.
Compared with the prior art, the utility model has the following advantages:
the hanger body is provided with a first sealing head close to the fluid inlet end, and a second sealing head close to the fluid outlet end; a support column is arranged in the casing head body, one end of a telescopic support piece is arranged on the first sealing head, the other end of the telescopic support piece is abutted against the support column, and the telescopic support piece is tightly pressed on the support column under the impact action of fluid, so that the stability of the hanger body arranged on the casing head body is ensured; the telescopic length of the telescopic support piece can be adjusted, so that the position of the hanger body can be conveniently adjusted according to needs; the second sealing head is connected with the hanger body through threads, and the hanger is simple in structure and convenient to connect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic view of the overall structure;
fig. 2 is a partially enlarged schematic view of fig. 1.
In the figure: the casing head comprises a casing head body 1, a hanger body 2, a first sealing head 3, a first fixing disc 31, a first sealing ring 32, a second sealing head 4, a second fixing disc 41, a second sealing ring 42, a telescopic support piece 5, an outer cylinder 51, an inner cylinder 52, a locking bolt 53, a supporting column 6, a mounting hole 61 and a groove 62.
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. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions.
Referring to fig. 1-2, an adjustable sealing casing head includes a casing head body 1 and a tubing hanger.
The oil pipe hanger comprises a hanger body 2, a first sealing head 3, a second sealing head 4 and a telescopic supporting piece 5; the hanger body 2 is sleeved in the casing head body 1, a first sealing head 3 is arranged close to a fluid inlet end, and a second sealing head 4 is arranged close to a fluid outlet end, namely the flowing direction of fluid flows from the first sealing head 3 to the second sealing head 4; the first sealing head 3, the second sealing head 4 and the hanger body 2 form an I-shaped structure.
The first sealing head 3 comprises a first fixed disc 31 and a first sealing ring 32; the first sealing head 3 is of a cylindrical structure; one end of the hanger body 2 is mounted on the first fixed disc 31 in a welding or fastening way, and the first fixed disc 31 is provided with a through hole matched with one end of the hanger body 2; the first sealing ring 32 surrounds the first fixed disc 31 for a circle, the diameter of the first sealing ring is matched with the inner diameter of the casing head body 1, and the first sealing ring 32 can be adhered to the outer side of the first fixed disc 31; the axial lengths of the first sealing ring 32 and the first fixed disc 31 are consistent; the first seal ring 32 is mounted in the casing head body 1 by interference fit.
The second sealing head 4 comprises a second fixed disc 41 and a second sealing ring 42; the second sealing ring 42 surrounds the second fixed disk 41 for a circle, the diameter of the second sealing ring is matched with the inner diameter of the casing head body 1, the second sealing ring 42 is adhered to the outer side of the second fixed disk 41, and the second sealing ring 42 is in interference fit with the inner wall of the casing head body 1; the second fixed disk 41 is provided with a threaded hole; the other end periphery of the hanger body 2 is provided with an external thread matched with the threaded hole, that is, the other end of the hanger body 2 is in threaded connection with the second fixed disc 41.
A support column 6 is arranged on the inner wall of the casing head body 1; the inner wall of the casing head is provided with internal threads; the supporting column 6 is installed on the internal thread in a threaded mode; the supporting column 6 is provided with a mounting hole 61 which can enable the hanger body 2 to move back and forth along the axis of the casing head body 1; one end of the telescopic support piece 5 is arranged on the end face, facing the second sealing head 4, of the first sealing head 3, and the other end of the telescopic support piece abuts against the end face, facing the first sealing head 3, of the support column 6; the telescopic supporting pieces 5 are multiple and surround the hanger body 2 for one circle; the telescopic support part 5 comprises an outer cylinder body 51, an inner cylinder body 52 and a locking bolt 53; the outer cylinder body 51 is sleeved outside the inner cylinder body 52, and the inner cylinder body 52 can slide relative to the outer cylinder body 51; the locking bolt 53 is in threaded connection with the outer cylinder 51, and one end of the locking bolt can be abutted against the peripheral surface of the inner cylinder 52; two locking bolts 53 are usually screwed on each outer cylinder 51; one end of the inner cylinder 52 extending out of the outer cylinder 51 is mounted on the end surface of the first fixed disk 31.
When the telescopic support 5 is in the minimum telescopic length, that is, when the inner cylinder 52 is contracted to the outer cylinder 51, the distance between the second sealing head 4 and the support column 6 is greater than or equal to the maximum telescopic length of the telescopic support 5; the maximum telescopic length of the telescopic support 5 means the maximum total length of the inner cylinder 52 and the outer cylinder 51 without the inner cylinder 52 separating from the outer cylinder 51.
The assembly mode of the utility model is as follows: installing a support column 6 on the inner side of the casing head body 1, installing a first sealing head 3 and a hanger body 2 together, and adjusting a telescopic support piece 5 to a required length; the hanger body 2 and the first sealing head 3 are pushed into the casing head body 1, and the end part of the telescopic support piece 5 is inserted into the groove 62; and pushing the second sealing head 4 into the other side of the sleeve head body, and then rotating the second sealing head 4 to enable the second sealing head 4 to be installed in place with the other end of the hanger body 2.
It should be noted that the terms "upper, lower, left, right, inner and outer" in the present invention are defined based on the relative positions of the components in the drawings, and are only used for clarity and convenience of the technical solution, and it should be understood that the application of the terms of orientation does not limit the scope of the present application.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. An adjustable sealing casing head is characterized by comprising a casing head body and an oil pipe hanger; the oil pipe hanger comprises a hanger body, a first sealing head, a second sealing head and a telescopic supporting piece; the hanger body is sleeved in the casing head body, a first sealing head is arranged close to the fluid inlet end, and a second sealing head is arranged close to the fluid outlet end; a support column is arranged on the inner wall of the casing head body, and a mounting hole capable of enabling the hanger body to axially move back and forth along the casing head body is formed in the support column; one end of the telescopic supporting piece is installed on the end face, facing the second sealing head, of the first sealing head, and the other end of the telescopic supporting piece abuts against the end face, facing the first sealing head, of the supporting column.
2. The adjustable seal casing head as described in claim 1, wherein said telescoping support member is a plurality of and surrounds said hanger body; the telescopic supporting piece comprises an outer cylinder, an inner cylinder and a locking bolt; the outer cylinder body is sleeved outside the inner cylinder body, and the inner cylinder body can slide relative to the outer cylinder body; the locking bolt is in threaded connection with the outer cylinder body, and one end of the locking bolt can abut against the circumferential surface of the inner cylinder body; one end of the inner cylinder extending out of the outer cylinder is arranged on the first sealing head.
3. The adjustable sealing sleeve head according to claim 2, wherein grooves corresponding to the telescopic supporting pieces one to one are formed on the surface of the supporting column; one end of the outer cylinder body is inserted into the groove in an abutting mode.
4. The adjustable sealing sleeve head of claim 1 wherein said inner wall of said sleeve head is internally threaded; the support column is installed on the internal thread in a threaded mode.
5. The adjustable sealing sleeve head of claim 1 wherein said first sealing head comprises a first retaining disk and a first sealing ring; the hanger body is arranged on a first fixed disk, and a through hole matched with one end of the hanger body is formed in the first fixed disk; first sealing washer encircles first fixed disk a week, and the diameter and the internal diameter looks adaptation of casing head body.
6. The adjustable sealing sleeve head of claim 1 wherein said second sealing head comprises a second retaining disk and a second sealing ring; the second sealing ring surrounds the second fixed disc for one circle, and the diameter of the second sealing ring is matched with the inner diameter of the casing head body; the second fixed disc is provided with a threaded hole; and the periphery of the other end of the hanger body is provided with an external thread matched with the threaded hole.
7. The adjustable sealing sleeve head of claim 1 wherein the second sealing head to support post spacing is greater than or equal to the maximum telescoping length of the telescoping support when the telescoping support is at the minimum telescoping length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775341.8U CN215332749U (en) | 2021-07-30 | 2021-07-30 | Adjustable seal cover tube head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775341.8U CN215332749U (en) | 2021-07-30 | 2021-07-30 | Adjustable seal cover tube head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215332749U true CN215332749U (en) | 2021-12-28 |
Family
ID=79574653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121775341.8U Active CN215332749U (en) | 2021-07-30 | 2021-07-30 | Adjustable seal cover tube head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215332749U (en) |
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2021
- 2021-07-30 CN CN202121775341.8U patent/CN215332749U/en active Active
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