CN206487438U - A kind of well head falling-proof apparatus of fast demountable - Google Patents
A kind of well head falling-proof apparatus of fast demountable Download PDFInfo
- Publication number
- CN206487438U CN206487438U CN201720165797.XU CN201720165797U CN206487438U CN 206487438 U CN206487438 U CN 206487438U CN 201720165797 U CN201720165797 U CN 201720165797U CN 206487438 U CN206487438 U CN 206487438U
- Authority
- CN
- China
- Prior art keywords
- lost
- opening
- cover plate
- well head
- rubber
- 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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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a kind of well head falling-proof apparatus of fast demountable, the device is by the anti-lost cover plate of easily dismantled, and anti-lost rubber and opening ring flange three part are constituted.The apparatus structure is simple, it is easy to manufacture, and is easy to employee to be dismounted, the wear rate of anti-lost rubber is reduced, it is with low cost, and certain centralizing function is played to oilfield construction tubing string, the requirement of petroleum works field safety in production can be met, with important economic value.
Description
Technical field
The utility model belongs to oil-gas mining technical field, and in particular to a kind of well head falling-proof apparatus of fast demountable.
Background technology
Daily oil drilling, well workover, formation testing, light maintenance operation the process frequency that makes a trip are higher, the abrasion of anti-lost rubber frequently,
Usage cycles shorten, and rubber and the annular space of anti-pouring umbrella bottom threeway are larger, in use because impact wear is easy
Rubber is caused to drop in well, so as to cause the generation of complex situations in well.
Current drilling well, well workover, formation testing, light maintenance operation often using two kinds of anti-lost modes of well head, prevent junk in well.It is a kind of straight
It is connected in the circle bushing plane of center of turntable and fills anti-lost film, is put into using self-styled method, convenient disassembly, but it can not consolidate
Fixed, anti-lost film is swung with tubing string, no centralizing function.It is another, directly anti-lost rubber is placed in the threeway in anti-pouring umbrella
End face, the annular space of anti-lost rubber covering threeway is larger, only by the edge supports contacted with threeway, after anti-lost rubber abrasion not
Preferably realize, increase junk risk, reduce anti-lost effect, and tubing string easily touches extension, the bushing of damage rig floor, anti-pouring umbrella and threeway upper end
Face.
To sum up, the anti-lost mode generally existing shortcoming of former well head is as follows：(1) anti-lost rubber quick abrasion, should not observe abrasion feelings
Condition；(2) tubing string swung when entering well the damage for easily causing anti-pouring umbrella and threeway the problems such as.Therefore, a kind of novel well is developed
The anti-lost dress transposition of mouth has a wide range of applications field and larger economic value.
Utility model content
In view of the deficienciess of the prior art, to be to provide a kind of well head of fast demountable anti-lost for the purpose of this utility model
Device, can be reduced because rubber weares and teares the anti-lost effect of reduction using the device, exclude rubber because abrasion falls the hidden danger of well, reduction because
Tubing string swing cause rig floor bushing, anti-pouring umbrella and threeway upper surface touch extension damage risk.
In order to achieve the above object, the technical scheme that the utility model is provided is as follows：
A kind of well head falling-proof apparatus of fast demountable, it is characterised in that including：Anti-lost cover plate, anti-lost rubber, opening method
Blue disk；The first opening and the second opening are respectively equipped with the anti-lost cover plate and opening ring flange, opening portion is not less than
115mm, meets after special circumstances, well head falling-proof apparatus can depart from tubing string rapidly from opening portion；Lead-in groove is provided with opening, it is described
Anti-lost rubber be fixed under the anti-lost cover plate or it is described opening ring flange on, the anti-lost cover plate provided with screw cavity, institute
Anti-lost cover plate is stated to be fixedly connected with the opening ring flange by the way that the screw is empty.
As optimal technical scheme, from top to bottom, radius is gradually reduced the lead-in groove, utilizes lead-in groove auto-strengthening pipe
Post.
As optimal technical scheme, the anti-lost rubber is overlapped each other by some pieces of anti-lost films and constituted, in lap
Heart line and the center line of the described first opening and second opening coincide.
As optimal technical scheme, the center line and the center line of the described second opening of first opening coincide.
As optimization technique method, the anti-lost film sets squarely.
As optimal technical scheme, the anti-lost rubber is bolted under anti-lost cover plate or the opening ring flange
On.
As optimal technical scheme, the anti-lost cover plate is fixedly connected with the opening ring flange by screw.
The beneficial effects of the utility model：
(1) guide groove is housed on the anti-lost cover plate of well head, especially had between two parties to tubing string in the light hours in the process of making a trip
The effect of righting, reduces the hidden danger that touching caused by tubing string is swung hangs the bushing of damage rig floor, anti-pouring umbrella and threeway upper surface；
(2) anti-lost film mutually circularized by some pieces of square anti-lost films it is overlapping, to different-diameter tubing string all have it is good
Good sealing effectiveness, change, which removes major diameter instrument, need to change self-styled situation, reduce the risk of bottom hole falling article；
(3) film wear is easily observed immediately at well head, and reduce reduces the hidden danger of anti-lost effect because rubber weares and teares；
(4) anti-lost film is made up of some pieces of square anti-lost films, and film weares and teares, and only need to change wear tip rubber,
Reduce use cost.
Brief description of the drawings
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of anti-lost cover plate；
Fig. 3 is the structural representation of anti-lost rubber；
Fig. 4 is the structural representation of opening ring flange.
Embodiment
It is described in further detail referring to figs. 1 to Fig. 4 to of the present utility model.
Embodiment 1
A kind of well head falling-proof apparatus of fast demountable, it is characterised in that including：Anti-lost cover plate 1, anti-lost rubber 2, opening
Ring flange 3；The first opening 103 and the second opening 301, opening portion are respectively equipped with the anti-lost cover plate 1 and opening ring flange 3
For 115mm, be provided with lead-in groove 101 at opening, anti-lost rubber 2 by three pieces of square anti-lost annulars of films 201,202,203 it is overlapping and
Into the anti-lost rubber 2 is bolted on the opening ring flange 3, and the anti-lost cover plate 1 is provided with screw cavity
102, the anti-lost cover plate 1 is fixedly connected by screw cavity 102 with the opening ring flange 3.
Method using the well head falling-proof apparatus of fast demountable comprises the following steps：
1) self-styled rubber core is put into upper cover plate housing, is screwed, a people tighten it is motionless untill；
2) blowout preventer steel ring slot is cleaned and wipes butter, steel ring is put into groove, 3 enter self-sealing well by opening ring flange
In device steel ring slot, two screws are diagonally tightened, are tightened with pipe wrench；
3) slowly tripping in oil pipe, aligns the anti-lost center of rubber 2 by oil pipe using lead-in groove 101, slowly inserts anti-lost rubber 2
Center；
4) back-up tong is accomplished fluently, pipe wrench is stuck in top board above 10cm or so with another, turns oil pipe when pushing pipe wrench, makes oil
Pipe pin thread is aligned with following oil pipe box box cupling and tightened；
5) two people lift top board, look into whether oil pipe thread tightens, otherwise again upper untill oil pipe thread is tightened；
6) oil pipe is above carried, elevator is removed, slowly tripping in oil pipe makes anti-lost cover plate 1 and the opening direction of opening ring flange 3 align,
Two screws diagonally are tightened, are tightened with pipe wrench, it is possible to normally lower oil pipe operation.
Embodiment 2
Anti-lost cover plate 1, anti-lost rubber 2, opening ring flange 3；It is respectively equipped with the anti-lost cover plate 1 and opening ring flange 2
First opening 103 and the second opening 301, opening portion are that lead-in groove 101 is provided with 120mm, opening, and the anti-lost rubber 2 is consolidated
It is scheduled on the anti-lost cover plate 1 time or the opening ring flange 3, the anti-lost cover plate 1 is provided with screw cavity 102, described anti-
Fall cover plate 1 to be fixedly connected with the opening ring flange 3 by screw cavity 102.
Method using the well head falling-proof apparatus of fast demountable comprises the following steps：
1) anti-lost rubber core is loaded into anti-lost cover plate, is screwed, a people tighten it is motionless untill.
2) blowout preventer steel ring slot is cleaned, wipes butter, steel ring is put into groove, opening ring flange 3 is loaded into self-styled envelope
In well device lower flange steel ring slot, two screws are diagonally tightened, are tightened with pipe wrench.
3) load opening ring flange, anti-lost cover plate 2 and the opening direction of opening ring flange 3 is alignd, diagonally tighten 2 spiral shells
Silk, is tightened with pipe wrench.
4) anti-lost rubber 2 is separated, slowly tripping in oil pipe in the anti-lost opening direction of cover plate 1 with pipe wrench, during tripping in,
The slow pipe wrench that comes loose, makes anti-lost rubber 2 be close to tubing string, it is possible to normally lower oil pipe operation.
Described above is only preferred embodiment of the present utility model, is not the limit to the utility model the scope of the claims
System, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should be pointed out that for this
For the those of ordinary skill in field, some improvements and modifications without departing from the concept of the premise utility, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of well head falling-proof apparatus of fast demountable, it is characterised in that including：Anti-lost cover plate (1), anti-lost rubber (2), open
Mouth ring flange (3)；The first opening (103) and the second opening are respectively equipped with the anti-lost cover plate (1) and opening ring flange (3)
(301), opening portion, which is not less than at 115mm, opening, is provided with lead-in groove (101), and the anti-lost rubber (2) is fixed on described anti-lost
Under cover plate (1) or on the opening ring flange (3), the anti-lost cover plate (1) is empty (102) provided with screw, the drop-preventing cover
Plate (1) is fixedly connected by the screw empty (102) with the opening ring flange (3).
2. a kind of well head falling-proof apparatus of fast demountable according to claim 1, it is characterised in that the lead-in groove
(101) from top to bottom, radius is gradually reduced.
3. a kind of well head falling-proof apparatus of fast demountable according to claim 1, it is characterised in that the anti-lost rubber
(2) overlapped each other and constituted by some pieces of anti-lost films, lap center line and the first opening (103) and the second opening (301)
Center line coincide.
4. a kind of well head falling-proof apparatus of fast demountable according to claim 3, it is characterised in that first opening
(103) center line and the center line of the described second opening (301) coincide.
5. a kind of well head falling-proof apparatus of fast demountable according to claim 3, it is characterised in that the anti-lost film
Squarely is set.
6. a kind of well head falling-proof apparatus of fast demountable according to claim 1, it is characterised in that the anti-lost rubber
(2) be bolted under anti-lost cover plate (1) or opening ring flange (3) on.
7. a kind of well head falling-proof apparatus of fast demountable according to claim 1, it is characterised in that the anti-lost cover plate
(1) it is fixedly connected with the opening ring flange (3) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720165797.XU CN206487438U (en) | 2017-02-22 | 2017-02-22 | A kind of well head falling-proof apparatus of fast demountable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720165797.XU CN206487438U (en) | 2017-02-22 | 2017-02-22 | A kind of well head falling-proof apparatus of fast demountable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487438U true CN206487438U (en) | 2017-09-12 |
Family
ID=59762232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720165797.XU Expired - Fee Related CN206487438U (en) | 2017-02-22 | 2017-02-22 | A kind of well head falling-proof apparatus of fast demountable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
-
2017
- 2017-02-22 CN CN201720165797.XU patent/CN206487438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
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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 |
Granted publication date: 20170912 Termination date: 20190222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |