CN209179719U - A kind of closed type wellhead for production - Google Patents
A kind of closed type wellhead for production Download PDFInfo
- Publication number
- CN209179719U CN209179719U CN201821336044.1U CN201821336044U CN209179719U CN 209179719 U CN209179719 U CN 209179719U CN 201821336044 U CN201821336044 U CN 201821336044U CN 209179719 U CN209179719 U CN 209179719U
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- CN
- China
- Prior art keywords
- oil pipe
- rod
- closed type
- casing head
- way ontology
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of closed type wellhead for production, it includes oil pipe four-way ontology, flange components are connected at the top of oil pipe four-way ontology, the bottom of oil pipe four-way ontology is connected with casing head, the body of rod is equipped in casing head, the first end of the body of rod passes through oil pipe four-way ontology and flange components, the second end of the body of rod extends in casing head, the opposite sides of casing head is respectively arranged with the first plate valve module and the second plate valve module, multiple square seal rings and multiple first O-ring seals are provided between the body of rod and the inner wall of oil pipe four-way ontology, multiple first O-ring seals are located at the top of multiple square seal rings.The utility model can effectively improve the sealing performance of casing head part compared to the prior art.
Description
Technical field
The utility model relates to oil and gas extraction wellhead device fields, and in particular to a kind of closed type wellhead for production.
Background technique
Oil and gas extraction wellhead device is also known as completion interval of well mouth device, mainly includes recover the oil (gas) tree, tubing head, casing head and phase
Accessory is closed, is oil recovery (gas) equipment for hanging, supporting, control, adjust etc., as the important equipment of production of hydrocarbons, property
Can the superiority and inferiority of energy is related to oil/gas well produce safe and efficiently.It is advanced, with the continuous development of petroleum industry, also to well head
The reliability and controlling of device and valve are put forward higher requirements, this just promotes and wellhead assembly is pushed to be also at constantly
Improvement and development among.
In current oil and gas extraction wellhead device, casing head is mainly used to the well head of fixed drilling well, connects wellhead casing pipe column,
Supporting the gravity of protective casing and production string, the annular space between each layer pipe is sealed, to install preventer, tubing head,
Production tree provides transition connection, and by two side ports on casing head ontology, can carry out mending crowded mud, monitoring and fill flat
Weigh the construction operations such as liquid.In current CASINGHEAD STRUCTURE, casing head ontology is primarily present the not strong problem of sealing performance.
Utility model content
In consideration of it, the utility model provides a kind of stronger closed type wellhead for production of sealing performance.
For this purpose, the utility model provides a kind of closed type wellhead for production comprising oil pipe four-way ontology, oil pipe four
Flange components are connected at the top of logical ontology, the bottom of oil pipe four-way ontology is connected with casing head, is equipped with the body of rod in casing head,
The first end of the body of rod passes through oil pipe four-way ontology and flange components, and the second end of the body of rod extends in casing head, casing head
Opposite sides be respectively arranged with the first plate valve module and the second plate valve module, the inner wall of the body of rod and oil pipe four-way ontology it
Between be provided with multiple square seal rings and multiple one 0 shape sealing rings, multiple one 0 shape sealing rings are located at multiple square seal rings
Top.
Further, multiple 2nd 0 shape sealing rings are provided between the above-mentioned body of rod and the inner wall of flange components.
Further, the bottom of above-mentioned square seal ring is provided with cone locking screw.
Further, multiple sealing rings are provided in above-mentioned casing head, the bottom of sealing ring is provided with arc groove, sealing ring
Top be provided with arc convex ribs, the opposite sides of arc convex ribs is respectively arranged with two step surfaces.
Further, the bottom of above-mentioned casing head is provided with gasket ring.
A kind of closed type wellhead for production provided by the utility model is mainly provided with oil pipe four-way ontology, oil pipe
Flange components are connected at the top of four-way ontology, the bottom of oil pipe four-way ontology is connected with valve body, and the bottom of valve body is connected with set
Tube head, the body of rod is equipped in valve body, and the first end of the body of rod passes through oil pipe four-way ontology and flange components, the second end of the body of rod
The junction of valve body and casing head is extended to, the opposite sides of valve body is respectively arranged with the first plate valve module and the second flap type
Component is provided with multiple square seal rings and multiple one 0 shape sealing rings between the body of rod and the inner wall of oil pipe four-way ontology, multiple
One 0 shape sealing ring is located at the top of multiple square seal rings；By the improvement of above structure, using multiple square seal rings and
The effect of multiple one 0 shape sealing rings, so that whole sealing performance is enhanced, thus compared to the prior art can be effective
The sealing performance of ground raising casing head part.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of closed type wellhead for production provided by the embodiment of the utility model；
Fig. 2 is the enlarged drawing in the portion A in Fig. 1.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Embodiment one:
Referring to Fig. 1 to Fig. 2, a kind of closed type production wellhead dress of the offer of the utility model embodiment one is shown in figure
It sets comprising oil pipe four-way ontology 1, the top of oil pipe four-way ontology 1 are connected with flange components 2, the bottom of oil pipe four-way ontology 1
It is connected with casing head 4, the body of rod 31 is equipped in casing head 4, the first end 311 of the body of rod 31 passes through oil pipe four-way ontology 1 and method
The second end 312 of blue component 2, the body of rod 31 extends in casing head 4, and it is flat that the opposite sides of casing head 4 is respectively arranged with first
Plate valve component 5 and the second plate valve module 6, are provided with multiple quad seals between the body of rod 31 and the inner wall of oil pipe four-way ontology 1
Circle 32 and multiple one 0 shape sealing rings 33, multiple one 0 shape sealing rings 33 are located at the top of multiple square seal rings 32.
A kind of closed type wellhead for production provided by the present embodiment is mainly provided with oil pipe four-way ontology, oil pipe four
Flange components are connected at the top of logical ontology, the bottom of oil pipe four-way ontology is connected with valve body, and the bottom of valve body is connected with casing
Head is equipped with the body of rod in valve body, and the first end of the body of rod passes through oil pipe four-way ontology and flange components, and the second end of the body of rod prolongs
The junction of valve body and casing head is extended to, the opposite sides of valve body is respectively arranged with the first plate valve module and the second plate valve group
Part is provided with multiple square seal rings and multiple one 0 shape sealing rings, Duo Ge between the body of rod and the inner wall of oil pipe four-way ontology
One 0 shape sealing rings are located at the top of multiple square seal rings；By the improvement of above structure, multiple square seal rings and more are utilized
The effect of a one 0 shape sealing ring, so that whole sealing performance is enhanced, thus compared to the prior art can be effectively
Improve the sealing performance of casing head part.
Embodiment two:
Referring to Fig. 1 to Fig. 2, a kind of closed type production wellhead dress of the offer of the utility model embodiment two is shown in figure
Set, the present embodiment be also further made that on the basis of the above embodiments it is following as an improved technical scheme: the body of rod 31
Multiple 2nd 0 shape sealing rings 34 are provided between the inner wall of flange components 2.It, can be further by the setting of above structure
The sealing performance of ground raising casing head part.
Embodiment three:
Referring to Fig. 1 to Fig. 2, a kind of closed type production wellhead dress of the offer of the utility model embodiment three is shown in figure
Set, the present embodiment be also further made that on the basis of the above embodiments it is following as an improved technical scheme: it is rectangular close
The bottom of seal 32 is provided with cone locking screw 321.By the setting of above structure, the installation of square seal ring can be made
It is more firm.
Example IV:
Referring to Fig. 1 to Fig. 2, a kind of closed type production wellhead dress of the offer of the utility model embodiment four is shown in figure
Set, the present embodiment be also further made that on the basis of the above embodiments it is following as an improved technical scheme: casing head 4
Multiple sealing rings 41 are inside provided with, the bottom of sealing ring 41 is provided with arc groove 411, and it is convex that the top of sealing ring 41 is provided with arc
Muscle 412, the opposite sides of arc convex ribs 412 are respectively arranged with two step surfaces 413.It, can be into one by the setting of above structure
Improve the sealing performance of casing head part in step ground.
Embodiment five:
Referring to Fig. 1 to Fig. 2, a kind of closed type production wellhead dress of the offer of the utility model embodiment five is shown in figure
Set, the present embodiment be also further made that on the basis of the above embodiments it is following as an improved technical scheme: casing head 4
Bottom be provided with gasket ring 42.By the setting of above structure, the sealing performance of casing head bottom can be further improved.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (5)
1. a kind of closed type wellhead for production, which is characterized in that including oil pipe four-way ontology (1), the oil pipe four-way ontology
(1) it is connected at the top of flange components (2), the bottom of the oil pipe four-way ontology (1) is connected with casing head (4), described sleeve pipe
It is equipped with the body of rod (31) in head (4), the first end (311) of the body of rod (31) passes through the oil pipe four-way ontology (1) and institute
It states flange components (2), the second end (312) of the body of rod (31) extends in described sleeve pipe head (4), described sleeve pipe head (4)
Opposite sides be respectively arranged with the first plate valve module (5) and the second plate valve module (6), the body of rod (31) and the oil
Multiple square seal rings (32) and multiple first O-ring seals (33) are provided between the inner wall of pipe four-way ontology (1), it is described more
A first O-ring seals (33) are located at the top of the multiple square seal ring (32).
2. a kind of closed type wellhead for production according to claim 1, which is characterized in that the body of rod (31) with it is described
Multiple second O-ring seals (34) are provided between the inner wall of flange components (2).
3. a kind of closed type wellhead for production according to claim 1, which is characterized in that the square seal ring (32)
Bottom be provided with cone locking screw (321).
4. a kind of closed type wellhead for production according to claim 1, which is characterized in that set in described sleeve pipe head (4)
It is equipped with multiple sealing rings (41), the bottom of the sealing ring (41) is provided with arc groove (411), the top of the sealing ring (41)
It is provided with arc convex ribs (412), the opposite sides of the arc convex ribs (412) is respectively arranged with two step surfaces (413).
5. a kind of closed type wellhead for production according to claim 4, which is characterized in that the bottom of described sleeve pipe head (4)
Portion is provided with gasket ring (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336044.1U CN209179719U (en) | 2018-08-17 | 2018-08-17 | A kind of closed type wellhead for production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336044.1U CN209179719U (en) | 2018-08-17 | 2018-08-17 | A kind of closed type wellhead for production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209179719U true CN209179719U (en) | 2019-07-30 |
Family
ID=67357187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821336044.1U Expired - Fee Related CN209179719U (en) | 2018-08-17 | 2018-08-17 | A kind of closed type wellhead for production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209179719U (en) |
-
2018
- 2018-08-17 CN CN201821336044.1U patent/CN209179719U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20210817 |