CN206830107U - A kind of integral type oil and gas wellhead device - Google Patents
A kind of integral type oil and gas wellhead device Download PDFInfo
- Publication number
- CN206830107U CN206830107U CN201720216414.7U CN201720216414U CN206830107U CN 206830107 U CN206830107 U CN 206830107U CN 201720216414 U CN201720216414 U CN 201720216414U CN 206830107 U CN206830107 U CN 206830107U
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- CN
- China
- Prior art keywords
- hanger
- type
- mandrel
- wellhead device
- gas wellhead
- Prior art date
- 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
It the utility model is related to oil field lease equipment technical field, specifically a kind of integral type oil and gas wellhead device, the housing for the hollow tube-shape being connected including base and one end with base, it is characterized in that, in housing sealed briquette, mandrel type tubing hanger, seal assembly, mandrel type casing hanger, anti-slip-type sleeve hanger and positive slip-type sleeve hanger are provided with by sequentially close-fitting on the direction of the other end to base, inner walls between mandrel type casing hanger and anti-slip-type sleeve hanger have conical step, and mandrel type casing hanger is arranged in type conical bench.The beneficial effects of the utility model are：The present apparatus is connected by tubing hanger with casing hanger, reduce the height of wellhead assembly, reduce housing volume and weight, metal sealing is used between casing hanger, tubing hanger, seal assembly and inner walls, improve service life, jackscrew is replaced using built-in elastic snap ring mode, reduces opening in shell number, it is therefore prevented that integral type oil and gas wellhead device leaks.
Description
Technical field
Oil field lease equipment technical field is the utility model is related to, specifically a kind of integral type oil and gas wellhead device.
Background technology
During oil gas well drilling, because the latus rectum of casing heads at different levels and tubing head is inconsistent, cause repeatedly to dismantle
Preventer group is installed, not only increases workload and activity duration, and add accident probability, especially at sea platform,
The longer drillng operation time means the rising of cost.In addition, conventional tubing head and casing head at different levels are connected by flange,
Making wellhead assembly, not only height is high, and weight weight, and volume is excessively huge, bulky for the area that offshore platform is limited
Conventional wellhead assembly urgently improves.Integral type well-mouth perfection solves above mentioned problem, but Integral type well-mouth of the prior art fills
Put, still have the space of reduction using multi-stage stairs suspension tubing hanger and casing hanger, the height of wellhead assembly more, in addition, existing skill
Art uses jackscrew to avoid the activity of casing hanger and tubing hanger more, and the use of jackscrew is not only increased on Integral type well-mouth housing
Duct quantity, and add the risk of leakage.
Utility model content
The purpose of this utility model aims to solve the problem that the deficiency present in above-mentioned prior art, there is provided a kind of integral type Oil/gas Well
Mouth device,
The technical scheme in the invention for solving the technical problem is：A kind of integral type oil and gas wellhead device, bag
Include the housing for the hollow tube-shape that base and one end are connected with the base, it is characterised in that by the other end in the housing
It is sequentially close-fitting on to the direction of the base to be provided with sealed briquette, mandrel type tubing hanger, seal assembly, mandrel type set
Pipe hanger, anti-slip-type sleeve hanger and positive slip-type sleeve hanger.
Preferably, the described inner walls tool between the mandrel type casing hanger and the anti-slip-type sleeve hanger
There is conical step, the mandrel type casing hanger is arranged in the type conical bench.
Preferably, it is provided with snap ring A between the mandrel type tubing hanger and the housing.
Preferably, set respectively between described mandrel type tubing hanger and housing, between the mandrel type casing hanger and housing
It is equipped with tubing hanger metal sealing and casing hanger metal sealing.
Preferably, the seal assembly includes upper seal, middle part seal and lower seal, the top seal
Snap ring B is provided between part and housing.
Preferably, it is connected through a screw thread between described lower seal and mandrel type casing hanger.
Preferably, BT sealing rings are provided with the connection screw thread.
Preferably, it is provided with metal o-ring between described mandrel type casing hanger and the type conical bench.
Preferably, described snap ring A section is irregular shape.
Preferably, described snap ring B section is irregular shape.
The beneficial effects of the utility model are：Compared with prior art, it is of the present utility model by tubing hanger and casing hanger heap
Stack, significantly reduce the whole height of oil and gas wellhead device, inner walls are provided only with a step, reduce housing
Volume and weight, metal to metal seal is used between casing hanger, tubing hanger, seal assembly and inner walls, is reduced because of rubber
Glue sealing is corroded or leaked caused by wearing, and using built-in elastic snap ring mode, abolishes conventional jackscrew, reduces housing
Number of aperture, it is therefore prevented that integral type oil and gas wellhead device leaks.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Wherein, 1 housing, 2 sealed briquettes, 3 snap ring A, 4 mandrel type tubing hangers, 5 tubing hanger metal sealings, 6 pressure-testing valves
A, 7 seal assemblies, 71 upper seals, 72 middle part seals, 73 lower seals, 8 snap ring B, 9 tops bypass, 10 notes
Fat valve, 11BT sealing rings, 12 pressure-testing valve B, 13 lower seal metal sealings, 14 mandrel type casing hangers, 15 sleeve pipe close platings are close
Envelope, 16 bottoms bypass, 17 anti-slips casing hangers, 18 positive slips casing hangers, 19 bases.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.Therefore, below to attached
The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed the scope of the utility model,
But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belong to the model of the utility model protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
With reference to shown in accompanying drawing 1, a kind of integral type oil and gas wellhead device, including housing 1, mandrel type tubing hanger 4, mandrel type set
Pipe hanger 14, sealed briquette 2, seal assembly 7, snap ring 3,8 and base 19, housing 1 are in hollow cylinder, and cavity top has close
Briquetting 2 is sealed, mandrel type tubing hanger 4 is located at the bottom of sealed briquette 2, and the top of mandrel type tubing hanger 4 is set with inner walls contact position
Elastic card annular groove is equipped with, for installing snap ring A3, the bottom of mandrel type tubing hanger 4 is seal assembly 7, the top of seal assembly 7
Inner walls contact position is provided with elastic card annular groove, for installing snap ring B8, the side of seal assembly 7 is provided with L-type hole,
Seal assembly bottom is provided with mandrel type casing hanger 14, and mandrel type casing hanger 14 is seated in the type conical bench of inner walls, core
Shaft type casing hanger bottom is provided with the positive slips casing hanger 18 being fixed in inner walls and anti-slips casing hanger 17.Described shell
Internal wall middle and lower part is provided with conical step, and step upper body internal diameter is consistent, step bottom to positive and negative slip-type sleeve hanger
Between internal diameter it is consistent.Between described mandrel type tubing hanger 4 and inner walls, between mandrel type casing hanger 14 and inner walls
Using metal sealing.Seal assembly 7, seal assembly are provided between described mandrel type tubing hanger 4 and mandrel type casing hanger 14
It is made up of three parts, upper seal 71, middle part seal 72 and lower seal 73.Described upper seal 71 and housing
Inwall contact position is provided with elastic card annular groove, for installing snap ring B8.The described side of middle part seal 72 is provided with L-type
Hole.It is connected through a screw thread between described lower seal 73 and mandrel type casing hanger 14, and is provided with connection screw thread top
BT sealing rings 11.Described mandrel type casing hanger 14 is provided with metal o-ring 15 with inner walls type conical bench contact position.
Overall described snap ring 3,8 is in irregular shape, has certain elasticity, for substituting the jackscrew commonly used in wellhead assembly.
In the present embodiment, a kind of integral type oil and gas wellhead device, including housing 1, mandrel type tubing hanger 4, mandrel type set
Pipe hanger 14, sealed briquette 2, seal assembly 7, snap ring 3,8 and base 19, housing 1 are in hollow cylinder, in inner walls under
Portion is provided with a type conical bench, and housing bottom is connected with anti-slips casing hanger 17 and positive slips casing hanger 18, and step is used to support
Mandrel type casing hanger 15, mandrel type casing hanger are provided with two seals with inner walls step contact position, are casing hanger gold
Category sealing 15, it can effectively prevent the leakage because caused by being corroded rubber seal or wears.Pacify on mandrel type casing hanger top
Equipped with seal assembly 7, seal assembly 7 is made up of three parts, upper seal 71, middle part seal 72 and lower seal 73,
Upper seal 71 is provided with elastic card annular groove with inner walls contact position, for installing snap ring B8, middle part seal
72 sides offer L-type hole, and connection top bypass 9 is set with oil jacket annular space, lower seal 73 with inner walls contact position
Have three seals, be seal assembly metal sealing 13, lower seal 73 with the inwall contact position of mandrel type casing hanger 14
Portion is provided with screw thread, and top is provided with BT sealing rings 11, and lower seal 73 and housing correspondence position are provided with pressure-testing valve B12
With grease pouring valve 10.Seal assembly top is provided with mandrel type tubing hanger 4, and mandrel type tubing hanger top is provided with elastic card annular groove,
For installing snap ring A3, mandrel type tubing hanger 4 is provided with two seals with inner walls contact position, is tubing hanger gold
Category sealing 5, the housing correspondence position among two seals is provided with pressure-testing valve A6.The top of mandrel type tubing hanger 4 is provided with close
Briquetting 2 is sealed, for the annular space being tightly connected between flange and mandrel type tubing hanger 4.Housing exterior walls are vertically installed with from top to bottom
Two bypass, top bypass 8 and bottom bypass 16, top bypass 8 are that tubing and casing annular space exports, and bottom bypass 16 is surface pipe
Exported with production string annular space, Bypass outlet end is connected with flange.Described inner walls middle and lower part is provided with conical platform
Rank, step upper body internal diameter is consistent, and step bottom is consistent to internal diameter between positive and negative slip-type sleeve hanger.
Above-mentioned embodiment is only specific case of the present utility model, and scope of patent protection of the present utility model includes
But the product form and style of above-mentioned embodiment are not limited to, any one kind one for meeting the utility model claims book
The appropriate change or modification that body formula oil and gas wellhead device and any person of an ordinary skill in the technical field are done to it, all should
Fall into scope of patent protection of the present utility model.
Claims (10)
1. a kind of integral type oil and gas wellhead device, including the shell of hollow tube-shape that base and one end are connected with the base
Body, it is characterised in that：It is sequentially close-fitting by the other end to the direction of the base in the housing to be provided with sealing pressure
Block, mandrel type tubing hanger, seal assembly, mandrel type casing hanger, anti-slip-type sleeve hanger and positive slip-type sleeve hanger.
A kind of 2. integral type oil and gas wellhead device according to claim 1, it is characterised in that：Positioned at the mandrel type sleeve pipe
Hanging the described inner walls between the anti-slip-type sleeve hanger has conical step, and the mandrel type casing hanger is set
In on the conical step.
A kind of 3. integral type oil and gas wellhead device according to claim 1, it is characterised in that：The mandrel type tubing hanger with
Snap ring A is provided between the housing.
A kind of 4. integral type oil and gas wellhead device according to claim 1, it is characterised in that：Described mandrel type tubing hanger
Between housing, it is respectively arranged with tubing hanger metal sealing between the mandrel type casing hanger and housing and sleeve pipe close plating is close
Envelope.
A kind of 5. integral type oil and gas wellhead device according to Claims 1 to 4 any claim, it is characterised in that：Institute
Stating seal assembly includes upper seal, middle part seal and lower seal, is set between the upper seal and housing
Flexible snap ring B.
A kind of 6. integral type oil and gas wellhead device according to claim 5, it is characterised in that：Described lower seal with
It is connected through a screw thread between mandrel type casing hanger.
A kind of 7. integral type oil and gas wellhead device according to claim 6, it is characterised in that：Set at the connection screw thread
There are BT sealing rings.
A kind of 8. integral type oil and gas wellhead device according to claim 2, it is characterised in that：Described mandrel type casing hanger
Metal o-ring is provided between the conical step.
A kind of 9. integral type oil and gas wellhead device according to claim 3, it is characterised in that：Described snap ring A's
Section is irregular shape.
A kind of 10. integral type oil and gas wellhead device according to claim 5, it is characterised in that：Described snap ring B's
Section is irregular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216414.7U CN206830107U (en) | 2017-03-07 | 2017-03-07 | A kind of integral type oil and gas wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216414.7U CN206830107U (en) | 2017-03-07 | 2017-03-07 | A kind of integral type oil and gas wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830107U true CN206830107U (en) | 2018-01-02 |
Family
ID=60780682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720216414.7U Expired - Fee Related CN206830107U (en) | 2017-03-07 | 2017-03-07 | A kind of integral type oil and gas wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412449A (en) * | 2018-03-10 | 2018-08-17 | 西南石油大学 | A kind of all-metal is multistage and waits the mandrel type hanger of cone sealing structure |
-
2017
- 2017-03-07 CN CN201720216414.7U patent/CN206830107U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412449A (en) * | 2018-03-10 | 2018-08-17 | 西南石油大学 | A kind of all-metal is multistage and waits the mandrel type hanger of cone sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190927 Address after: 257100 101, building 1, No. 7, Yicheng Road, Dongying District, Dongying City, Shandong Province Patentee after: Shandong Rongteng Petroleum Equipment Co., Ltd. Address before: 257081 Lu Yidong, Shengli Industrial Park, two North fourteen South Road, Shandong, Dongying Patentee before: SHENGLI OILFIELD RUITE MACHINERY MANUFACTURING CO., LTD. |
|
| 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: 20180102 Termination date: 20210307 |