CN211397526U - Rotatable quick-mounting wellhead connecting device - Google Patents
Rotatable quick-mounting wellhead connecting device Download PDFInfo
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- CN211397526U CN211397526U CN201922040243.9U CN201922040243U CN211397526U CN 211397526 U CN211397526 U CN 211397526U CN 201922040243 U CN201922040243 U CN 201922040243U CN 211397526 U CN211397526 U CN 211397526U
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Abstract
The utility model relates to the technical field of oil recovery or gas production well head devices, in particular to a rotatable quick-assembly well head connecting device, which comprises a lower well head assembly, wherein an upper well head assembly is connected above the lower well head assembly, a bearing ring is arranged at the gap between the upper well head assembly and the lower well head assembly, a pressing ring is arranged at the parallel part above the bearing ring, a hub wheel is arranged at the upper part of the excircle of the lower well head assembly, and a first connecting thread is designed at the upper part of the inner hole of the hub wheel; this can revolve to ready-package well head connecting device, adopt and integral with last well head assembly and the hanger that the carrier ring fell into well head assembly down to bear step department, the sealing member of first seal groove department can realize sealed with sheathed tube self-excitation, it is whole convenient to realize rotatory angle and the direction of going up the well head assembly, can rotate the well head to any required angle and direction, can realize that the well head is installed fast, reduce well head occupation space, area, reduce the activity duration, and the cost is reduced.
Description
Technical Field
The utility model relates to an oil recovery or gas production well head technical field specifically is a can rotate to ready-package well head connecting device.
Background
The gas production wellhead device is a device which is installed at a wellhead for controlling the pressure and direction of gas and liquid (oil, water and the like) fluid, suspending a casing and an oil pipe and sealing the oil pipe, the casing and annular spaces of each layer of casing in oil and natural gas drilling, generally comprises a casing head, an oil pipe head, a blowout preventer group, a four-way pipe and a bypass pipe fitting, and also belongs to wellhead devices for production trees and gas production trees.
The well head carries out the auxiliary operation through well head connecting device at the in-process of oil recovery or gas production, and well head connecting device is according to the model size of the mine of gas production/oil recovery, and size and specification are also different, and the quantity is also diversified.
But current well head connecting device is generally through a set of bolt and nut flange owing to oil recovery/gas production well head device, and the activity duration is longer, in addition, because the quantity of bolt hole has been stipulated to the API flange, so adjust the angle of well head through the flange bolt hole also be a fixed value, just is not very suitable to the occasion that needs fine setting well head angle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel can revolve to ready-package well head connecting device, can realize well head high-speed joint and installation, can rotate well head to any required angle and orientation in a flexible way moreover, reduce activity duration and cost.
In order to achieve the above object, the utility model provides a following technical scheme: a rotatable quick-assembly wellhead connecting device comprises a lower wellhead assembly, wherein an upper wellhead assembly is connected above the lower wellhead assembly, a bearing ring is arranged at a gap between the upper wellhead assembly and the lower wellhead assembly, and a pressing ring is arranged at the parallel part above the bearing ring;
the upper part of the excircle of the lower wellhead assembly is provided with a hub wheel, the upper part of an inner hole of the hub wheel is provided with a first connecting thread, and the middle part of the inner hole of the first connecting thread is provided with a hanger bearing step;
a first sealing groove is designed at the lower part of an inner hole of the upper wellhead assembly, a second sealing groove is arranged at the middle lower part of the excircle of the upper wellhead assembly, a compression ring is connected to the outer side of the second sealing groove, and a second connecting thread is arranged at the lower part of the excircle of the upper wellhead assembly;
a third connecting thread is designed on an inner hole of the bearing ring, the third connecting thread is in matched connection with the second connecting thread on the lower portion of the upper wellhead assembly, a first fastening screw hole is formed in the upper portion of the outer circle of the bearing ring, and a bearing step is designed on the lower portion of the outer circle of the bearing ring;
the design of clamp ring excircle upper portion has second fastening screw hole, the clamp ring design has the open slot, the design of clamp ring's excircle middle part has the third seal groove, the design of clamp ring excircle lower part has fourth connecting thread.
As a preferred technical scheme of the utility model, the model of wheel hub is API-16A type.
As the utility model discloses a can revolve to ready-package well head connecting device's preferred technical scheme, first connecting thread with constitute threaded connection between the clamp ring, the clamp ring with first connecting thread's threaded connection portion is into fourth connecting thread.
As the utility model discloses a can rotate to ready-package well head connecting device's preferred technical scheme, first seal groove with constitute seal structure between the clamp ring.
As the utility model discloses a can revolve to ready-package well head connecting device's preferred technical scheme, the carrier ring with constitute swivelling joint between the second connecting thread.
As the utility model discloses a can rotate to ready-package well head connecting device's preferred technical scheme, the open slot with constitute rotatory pressing mechanism between the clamp ring.
Compared with the prior art, the beneficial effects of the utility model are that: this can revolve to ready-package well head connecting device adopts the integral hanger that falls into well head assembly down with the carrier ring and bears step department, and the sealing member of first seal groove department can realize sealed with sheathed tube self excitation, realizes that the rotatory angle and the orientation of going up the well head assembly are whole convenient, can rotate the well head to any required angle and orientation, can realize that the well head is installed fast, reduces well head occupation space, area, reduces the activity duration, reduce cost.
Drawings
FIG. 1 is a schematic view of the whole structure of the rotary quick-mounting wellhead connection device of the present invention;
FIG. 2 is a schematic view of the lower portion of the lower wellhead assembly of the present invention;
FIG. 3 is a schematic view of the upper structure of the upper wellhead assembly of the present invention;
FIG. 4 is a schematic cross-sectional view of the load ring of the present invention;
FIG. 5 is a schematic view of the structure of the carrier ring of the present invention;
fig. 6 is a schematic cross-sectional view of the clamp ring of the present invention;
fig. 7 is a schematic view of the pressing ring structure of the present invention.
In the figure: 1. a lower wellhead assembly; 1.1, a hub wheel; 1.2, a first connecting thread; 1.3, a hanger bears a step; 2. an upper wellhead assembly; 2.1, a first sealing groove; 2.2, a second sealing groove; 2.3, a second connecting thread; 3. a load ring; 3.1, a first fastening screw hole; 3.2, third connecting threads; 3.3, carrying steps; 4. a compression ring; 4.1, a second fastening screw hole; 4.2, opening grooves; 4.3, a third sealing groove; 4.4, a fourth connecting thread.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-7, the present invention provides a technical solution: a rotatable quick-assembly wellhead connecting device comprises a lower wellhead assembly 1, wherein an upper wellhead assembly 2 is connected above the lower wellhead assembly 1, a bearing ring 3 is arranged at a gap between the upper wellhead assembly 2 and the lower wellhead assembly 1, and a compression ring 4 is arranged at the parallel part above the bearing ring 3;
the upper part of the excircle of the lower wellhead assembly 1 is provided with a hub wheel 1.1, the upper part of an inner hole of the hub wheel 1.1 is provided with a first connecting thread 1.2, and the middle part of the inner hole of the first connecting thread 1.2 is provided with a hanger bearing step 1.3;
a first sealing groove 2.1 is designed at the lower part of an inner hole of the upper wellhead assembly 2, a second sealing groove 2.2 is arranged at the middle lower part of the excircle of the upper wellhead assembly 2, a compression ring 4 is connected to the outer side of the second sealing groove 2.2, and a second connecting thread 2.3 is arranged at the lower part of the excircle of the upper wellhead assembly 2;
the inner hole of the bearing ring 3 is designed with a third connecting thread 3.2, the third connecting thread 3.2 is matched and connected with a second connecting thread 2.3 at the lower part of the upper wellhead assembly 2, the upper part of the excircle of the bearing ring 3 is provided with a first fastening screw hole 3.1, and the lower part of the excircle of the bearing ring 3 is designed with a bearing step 3.3;
the design of 4 excircle upper portions of clamp ring has second fastening screw hole 4.1, and clamp ring 4 designs has open slot 4.2, and clamp ring 4's excircle middle part design has third seal groove 4.3, and clamp ring 4 excircle lower part design has fourth connecting thread 4.4.
In this embodiment: the connection of the lower wellhead assembly 1 and the original wellhead device is adopted, the upper hub wheel 1.1 of the lower wellhead assembly 1 is quickly connected with a drilling blowout preventer, the lower part of the upper wellhead assembly 2 is rotatably connected with the bearing ring 3, the upper wellhead assembly 2 and the bearing ring 3 are locked by using the first fastening screw hole 3.1, the upper wellhead assembly 2 and the bearing ring 3 are integrally dropped into the bearing step 1.3 of a hanger of the lower wellhead assembly 1, the sealing element at the first sealing groove 2.1 can realize self-excitation sealing with a sleeve, the integral convenience of the angle and the direction of the upper wellhead assembly 2 is realized, a tool is used for rotating the open groove 4.2 at the upper part of the excircle of the clamp ring 4 to rotate the clamp ring 4 to move downwards to clamp the bearing ring 3, meanwhile, the compression ring 4 is respectively sealed with the inner hole of the lower wellhead assembly 1 and the outer circle of the lower part of the upper wellhead assembly 2, after being compressed in place, the compression ring 4 is locked by screwing the screw at the second fastening screw hole 4.1 with an internal hexagonal wrench.
Specifically, the method comprises the following steps: the hub wheel 1.1 is of the API-16A type.
In this embodiment: the hub wheel 1.1 is intended for quick connection to a drilling blowout preventer.
Specifically, the method comprises the following steps: and the first connecting thread 1.2 and the pressing ring 4 form threaded connection, and the threaded connection part of the pressing ring 4 and the first connecting thread 1.2 is a fourth connecting thread 4.4.
In this embodiment: the first connecting thread 1.2 can be used both for taking off the lower wellhead assembly 1 and for screwing with the hold-down ring 4.
Specifically, the method comprises the following steps: a sealing structure is formed between the first sealing groove 2.1 and the compression ring 4.
In this embodiment: the first sealing groove 2.1 is directly sealed with the compression ring 4, so that oil/casing pipes can be sealed.
Specifically, the method comprises the following steps: the carrier ring 3 and the second connecting thread 2.3 form a rotary connection.
In this embodiment: the second connecting thread 2.3 is intended to be connected to the carrier ring 3.
Specifically, the method comprises the following steps: a rotary pressing mechanism is formed between the open slot 4.2 and the pressing ring 4.
In this embodiment: the slots 4.2 are open for downward movement of the rotating clamp ring 4.
The working principle is as follows: when the rotatable quick-assembly wellhead connecting device is used, firstly, a lower wellhead assembly 1 of the rotatable quick-assembly wellhead connecting device is installed on an original wellhead device by using a taking and delivering tool, an upper hub wheel 1.1 of the lower wellhead assembly 1 can be quickly connected with a drilling blowout preventer, after the lower part of an upper wellhead assembly 2 is connected with a bearing ring 3, the upper wellhead assembly 2 and the bearing ring 3 are locked by using a first fastening screw hole 3.1 nail, along with the drilling process, the upper wellhead assembly 2 and the bearing ring 3 are seated into a hanger bearing step 1.3 of the lower wellhead assembly 1 together, at the moment, a sealing element at the position of a first sealing groove 2.1 can realize self-excitation sealing with a sleeve, the upper wellhead assembly 2 is rotated to a proper angle and direction, a tool is used for rotating an open groove 4.2 at the upper part of a pressing ring 4 to move downwards to press the bearing ring 3, at the moment, the sealing of the inner hole of the pressing ring 4 with the outer circle positions of the lower part of the lower wellhead assembly 1 and the upper wellhead assembly 2 is realized simultaneously, after the compression is in place, the compression ring 4 is locked by screwing the screw in the second fastening screw hole 4.1 with an allen wrench, which is not described in detail in this description, and which is known to the person skilled in the art.
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 invention.
Claims (6)
1. The utility model provides a can rotate to ready-package well head connecting device, includes well head assembly (1) down, its characterized in that: an upper wellhead assembly (2) is connected above the lower wellhead assembly (1), a bearing ring (3) is arranged at a gap between the upper wellhead assembly (2) and the lower wellhead assembly (1), and a compression ring (4) is arranged at the parallel part above the bearing ring (3);
the upper part of the outer circle of the well head assembly (1) is provided with a hub wheel (1.1), the upper part of an inner hole of the hub wheel (1.1) is provided with a first connecting thread (1.2), and the middle part of the inner hole of the first connecting thread (1.2) is provided with a hanger bearing step (1.3);
a first sealing groove (2.1) is designed at the lower part of an inner hole of the upper wellhead assembly (2), a second sealing groove (2.2) is arranged at the middle lower part of the excircle of the upper wellhead assembly (2), a compression ring (4) is connected to the outer side of the second sealing groove (2.2), and a second connecting thread (2.3) is arranged at the lower part of the excircle of the upper wellhead assembly (2);
a third connecting thread (3.2) is designed on an inner hole of the bearing ring (3), the third connecting thread (3.2) is matched and connected with the second connecting thread (2.3) at the lower part of the upper wellhead assembly (2), a first fastening screw hole (3.1) is formed in the upper part of the outer circle of the bearing ring (3), and a bearing step (3.3) is designed at the lower part of the outer circle of the bearing ring (3);
the design of clamp ring (4) excircle upper portion has second fastening screw hole (4.1), clamp ring (4) design has open slot (4.2), the design of the excircle middle part of clamp ring (4) has third seal groove (4.3), clamp ring (4) excircle lower part design has fourth connecting thread (4.4).
2. A rotatable quick-fit wellhead connection device according to claim 1, wherein: the model number of the hub wheel (1.1) is API-16A type.
3. A rotatable quick-fit wellhead connection device according to claim 1, wherein: the first connecting thread (1.2) and the pressing ring (4) form threaded connection, and the threaded connection part of the pressing ring (4) and the first connecting thread (1.2) is the fourth connecting thread (4.4).
4. A rotatable quick-fit wellhead connection device according to claim 1, wherein: a sealing structure is formed between the first sealing groove (2.1) and the compression ring (4).
5. A rotatable quick-fit wellhead connection device according to claim 1, wherein: the bearing ring (3) and the second connecting thread (2.3) form a rotary connection.
6. A rotatable quick-fit wellhead connection device according to claim 1, wherein: and a rotary pressing mechanism is formed between the open slot (4.2) and the compression ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922040243.9U CN211397526U (en) | 2019-11-23 | 2019-11-23 | Rotatable quick-mounting wellhead connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922040243.9U CN211397526U (en) | 2019-11-23 | 2019-11-23 | Rotatable quick-mounting wellhead connecting device |
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| Publication Number | Publication Date |
|---|---|
| CN211397526U true CN211397526U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922040243.9U Active CN211397526U (en) | 2019-11-23 | 2019-11-23 | Rotatable quick-mounting wellhead connecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863791A (en) * | 2019-11-23 | 2020-03-06 | 威飞海洋装备制造有限公司 | Rotatable quick-mounting wellhead connecting device |
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2019
- 2019-11-23 CN CN201922040243.9U patent/CN211397526U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863791A (en) * | 2019-11-23 | 2020-03-06 | 威飞海洋装备制造有限公司 | Rotatable quick-mounting wellhead connecting device |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhong Fei Fei Inventor after: Peng Chaowen Inventor after: Li Hongsheng Inventor after: Yu Xiaotao Inventor after: Wang Haicong Inventor after: Wang Xiaolong Inventor before: Sun Qinghong Inventor before: Zhong Fei Fei Inventor before: Peng Chaowen Inventor before: Li Hongsheng Inventor before: Yu Xiaotao Inventor before: Wang Haicong Inventor before: Wang Xiaolong |