CN207436991U - A kind of novel two-stage casing head device - Google Patents
A kind of novel two-stage casing head device Download PDFInfo
- Publication number
- CN207436991U CN207436991U CN201721531205.8U CN201721531205U CN207436991U CN 207436991 U CN207436991 U CN 207436991U CN 201721531205 U CN201721531205 U CN 201721531205U CN 207436991 U CN207436991 U CN 207436991U
- Authority
- CN
- China
- Prior art keywords
- ring
- gasket ring
- hanger
- way housing
- casing head
- 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
Links
Abstract
The utility model discloses a kind of novel two-stage casing head device, including upper valve group, lower valve group, upper strata four-way housing, lower floor's four-way housing, mandrel hanger and lower hanger；Upper valve group is fixed on the four-way housing of upper strata, and lower valve group is fixed on lower floor's four-way housing, and mandrel hanger is arranged in the four-way housing of upper strata, and lower hanger is arranged in lower floor's four-way housing；Wear-resistant seal ring group is equipped between mandrel hanger and upper strata four-way housing, wear-resistant seal ring group includes baffle ring, lower gasket ring, upper gasket ring and middle gasket ring；Baffle ring is fixed on mandrel hanger, and lower gasket ring is arranged on the upper of baffle ring, and middle gasket ring is arranged on lower gasket ring, and upper gasket ring lower end is fastened in middle gasket ring.Traditional sealing means are changed to module combined type by above-mentioned casing head device, sealing ring can be both adjusted according to the specification of casing head, part sealing ring can also be replaced according to abrasion condition, are reduced production and maintenance cost；By improving the structure of sealing ring, its service life is improved.
Description
Technical field
The utility model is related to oil production equipment fields, and in particular to a kind of novel two-stage casing head device.
Background technology
Casing head is used for the well head of fixed drilling well, wellhead casing pipe column is connected, to support protective casing and oil reservoir set
The gravity of pipe seals the annular space between each layer pipe, and for installation preventer, tubing head, production tree provides transition connection, and leads to
Two side ports on casing head body are crossed, can carry out mending the construction operations such as crowded mud, monitoring and filling equilibrium liquid.
Casing head applying working condition is severe, and the sealing effect between hangs inside device and housing directly affects blowout prevention, recovers the oil and make
The efficiency and equipment cost of industry；The heavy burden characteristic of hanger determines that general sealing means are unsuitable for above-mentioned operating mode, it is necessary to one
Kind reliability higher, the sealing means of longer life expectancy, to reduce maintenance cost, improve production efficiency.
Utility model content
The technical problems to be solved in the utility model is to have overcome the deficiencies of the prior art and provide a kind of novel two-stage casing
Traditional sealing means are changed to module combined type, sealing ring can be both adjusted according to the specification of casing head by head device,
Part sealing ring can also be replaced according to abrasion condition, reduce production and maintenance cost；Meanwhile it is sealed by improving
The structure of ring improves its service life.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of novel two-stage casing head device, including
Upper valve group, lower valve group, upper strata four-way housing, lower floor's four-way housing, mandrel hanger and lower hanger；The upper valve group is fixed on
On the four-way housing of upper strata, the lower valve group is fixed on lower floor's four-way housing, and the mandrel hanger is arranged on upper strata four-way shell
In vivo, the lower hanger is arranged in lower floor's four-way housing；It is equipped between the mandrel hanger and upper strata four-way housing resistance to
Sealing ring group is ground, the wear-resistant seal ring group includes baffle ring, lower gasket ring, upper gasket ring and middle gasket ring；The baffle ring is fixed on mandrel
On hanger, the lower gasket ring is arranged on the upper of baffle ring, and the middle gasket ring is arranged on lower gasket ring, the upper gasket ring lower end engaging
In middle gasket ring.
Further improved as the utility model, the upper gasket ring lower end is equipped with conical nose, which can be with
It is fastened in gasket ring.
Further improved as the utility model, the cross section of the middle gasket ring is H-shaped, and upper and lower both sides are arranged with
Rectangular recess, the opening of the rectangular recess are equipped with the matched inclined-plane of conical nose with upper gasket ring.
It is further improved as the utility model, wear-resistant seal is equipped between the lower hanger and lower floor's four-way housing
Ring group, the wear-resistant seal ring group include baffle ring, lower gasket ring, upper gasket ring and middle gasket ring；The baffle ring is fixed on mandrel hanger
On, the lower gasket ring is arranged on the upper of baffle ring, and the middle gasket ring is arranged on lower gasket ring, and the upper gasket ring lower end is fastened on middle pad
In ring.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：
The traditional sealing means of casing head are changed to module combined type, both can according to the specification of casing head to sealing ring into
Row adjustment, can also replace part sealing ring according to abrasion condition, reduces production and maintenance cost；Meanwhile pass through
The structure of sealing ring is improved, improves its service life.
Description of the drawings
Technical solutions of the utility model are described further below in conjunction with the accompanying drawings：
Attached drawing 1 is the new sectional view of the utility model；
Attached drawing 2 is the utility model novel local sectional structure enlarged diagram；
Attached drawing 3 is the new middle gasket ring cross section structure schematic diagram of the utility model；
Attached drawing 4 is the new upper gasket ring cross section structure schematic diagram of the utility model.
In figure：1st, mandrel hanger；2nd, upper strata four-way housing；3rd, upper valve group；4th, lower hanger；5th, lower valve group；6th, lower floor
Four-way housing；7th, pedestal；8th, wear-resistant seal ring group；9th, upper gasket ring；10th, middle gasket ring；11st, lower gasket ring；12nd, baffle ring；13rd, rectangle is recessed
Slot；14th, inclined-plane；15th, conical nose.
Specific embodiment
With reference to specific embodiment, the utility model is described in further detail.
A kind of novel two-stage casing head device as shown in Figures 1 to 4, including upper valve group 3, lower valve group 5, upper strata four-way shell
Body 2, lower floor's four-way housing 6, mandrel hanger 1 and lower hanger 4；Lower floor's four-way housing 6 is fixed on pedestal 7, upper strata four-way
Housing 2 is fixed on lower floor's four-way housing 6.Using threaded connection between upper strata four-way housing 2 and lower floor's four-way housing 6.
Upper valve group 3 is fixed on upper strata four-way housing 2, and lower valve group 5 is fixed on lower floor's four-way housing 6, and upper valve group 3 is under
Valve group 5 is symmetrically arranged.
Mandrel hanger 1 is arranged in upper strata four-way housing 2, and lower hanger 4 is arranged in lower floor's four-way housing 6；Mandrel
For clamping drilling pipe mandrel, lower hanger 4 is used for clamping drilling pipe etc. hanger 1.
Wear-resistant seal ring group 8 is equipped between mandrel hanger 1 and upper strata four-way housing 4；Lower hanger 4 and lower floor's four-way shell
Wear-resistant seal ring group 8 is equipped between body 6；Wear-resistant seal ring group 8 is modularized design, can be according to the specification of casing head to sealing
Ring is adjusted, and part sealing ring can also be replaced according to abrasion condition.
Wear-resistant seal ring group 8 includes baffle ring 12, lower gasket ring 11, upper gasket ring 9 and middle gasket ring 10；Baffle ring 12 is fixed on mandrel and hangs
In hanging device 1, the mode that is connected by screw bolts；Lower gasket ring 11 is arranged on the upper of baffle ring 12, and middle gasket ring 10 is arranged on lower gasket ring 11,
Upper 9 lower end of gasket ring is fastened in middle gasket ring 10.Baffle ring 12, lower gasket ring 11, upper gasket ring 9 and middle gasket ring 10 use abrasion-proof stainless steel
Material makes.
Upper 9 lower end of gasket ring is equipped with conical nose 15, which can be fastened on the rectangular recess 13 of middle gasket ring 10
In.
The cross section of middle gasket ring 10 is H-shaped, and upper and lower both sides are arranged with rectangular recess 13, the opening of rectangular recess 13
Equipped with inclined-plane 14 matched with the conical nose of upper gasket ring, 8 each component of wear-resistant seal ring group can be determined automatically when being assembled with guarantee
Position.
Wear-resistant seal ring group 8 is equipped between lower hanger 4 and lower floor's four-way housing 6, specification selects as needed.
It the above is only the concrete application example of the utility model, do not form any limit to the scope of protection of the utility model
System.All technical solutions formed using equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (4)
1. a kind of novel two-stage casing head device, including upper valve group and lower valve group, it is characterised in that：Further include upper strata four-way shell
Body, lower floor's four-way housing, mandrel hanger and lower hanger；The upper valve group is fixed on the four-way housing of upper strata, the lower valve
Group is fixed on lower floor's four-way housing, and the mandrel hanger is arranged in the four-way housing of upper strata, and the lower hanger is arranged on
In lower floor's four-way housing；Wear-resistant seal ring group, the wear-resistant seal are equipped between the mandrel hanger and upper strata four-way housing
Ring group includes baffle ring, lower gasket ring, upper gasket ring and middle gasket ring；The baffle ring is fixed on mandrel hanger, and the lower gasket ring is set
In the upper of baffle ring, the middle gasket ring is arranged on lower gasket ring, and the upper gasket ring lower end is fastened in middle gasket ring.
2. a kind of novel two-stage casing head device according to claim 1, it is characterised in that：The upper gasket ring lower end is equipped with cone
Forming head portion, the conical nose can be fastened in middle gasket ring.
3. a kind of novel two-stage casing head device according to claim 2, it is characterised in that：The cross section of the middle gasket ring is
H-shaped, upper and lower both sides are arranged with rectangular recess, and the opening of the rectangular recess is equipped with to be matched with the conical nose of upper gasket ring
Inclined-plane.
4. a kind of novel two-stage casing head device according to claim 1, it is characterised in that：The lower hanger and lower floor four
Wear-resistant seal ring group is equipped between logical housing, the wear-resistant seal ring group includes baffle ring, lower gasket ring, upper gasket ring and middle gasket ring；Institute
It states baffle ring to be fixed on mandrel hanger, the lower gasket ring is arranged on the upper of baffle ring, and the middle gasket ring is arranged on lower gasket ring, institute
Gasket ring lower end is stated to be fastened in middle gasket ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721531205.8U CN207436991U (en) | 2017-11-15 | 2017-11-15 | A kind of novel two-stage casing head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721531205.8U CN207436991U (en) | 2017-11-15 | 2017-11-15 | A kind of novel two-stage casing head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207436991U true CN207436991U (en) | 2018-06-01 |
Family
ID=62289891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721531205.8U Expired - Fee Related CN207436991U (en) | 2017-11-15 | 2017-11-15 | A kind of novel two-stage casing head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207436991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519133A (en) * | 2018-12-24 | 2019-03-26 | 托普威尔石油技术股份公司 | A kind of under balance pressure drilling Operating Pressure machine |
-
2017
- 2017-11-15 CN CN201721531205.8U patent/CN207436991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519133A (en) * | 2018-12-24 | 2019-03-26 | 托普威尔石油技术股份公司 | A kind of under balance pressure drilling Operating Pressure machine |
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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: 20180601 Termination date: 20211115 |