CN205477495U - Wellhead sealing device - Google Patents
Wellhead sealing device Download PDFInfo
- Publication number
- CN205477495U CN205477495U CN201620140218.1U CN201620140218U CN205477495U CN 205477495 U CN205477495 U CN 205477495U CN 201620140218 U CN201620140218 U CN 201620140218U CN 205477495 U CN205477495 U CN 205477495U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- extrusion
- sealing device
- closeouts
- packing
- 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.)
- Active
Links
Abstract
The utility model discloses a wellhead sealing device, include: body, body include the extruded article that the relative barrel with the ability of the barrel that can wear to establish oil pipe moved, and packing, packing can overlap to be established outside oil pipe, and the packing setting is internal originally to can be when the relative barrel of extruded article slides the compressed, the shutoff piece, the shutoff piece sets up on the extruded article to can move by relative extruded article, the shutoff piece has can stretch into this internal and can carry out the first end of shutoff and can wear out the barrel oil pipe's one end the second end, the separator, the separator setting is on the body to form with the body and be used for shutoff piece and the external isolation chamber that keeps apart. The utility model discloses an on seal structure's such as extruded article and shutoff piece the basis, can keep apart once more with the external world leaking the steam that comes out through the separator to play effect sealed once more, and then improved wellhead sealing device's sealed effect.
Description
Technical field
This utility model relates to oilfield exploitation, particularly relates to a kind of well mouth sealing device.
Background technology
When heavy oil wells carries out oil producing operation, need in heavy oil wells, to inject steam to improve the mobility of heavy oil wells Crude Oil.To
When heavy oil wells injects steam, by well mouth sealing device, thick oil well mouth can be sealed.In the prior art, well head
Sealing device can use packing to be clamped the oil pipe of well head, then seals the oil pipe after clamping.In the process of use
In, packing may be damaged by the corrosion of the external substances such as crude oil.After packing is corroded, the packing active force to oil pipe
There may be inequality.Thus oil pipe may produce crooked in the case of packing is damaged, thus at well mouth sealing device
And form gap between the outlet of oil pipe, thus cause the sealing property of well mouth sealing device to reduce.May be from order to solve steam
The problem revealed in gap, operator also need to stop injecting steam, carry out killing job to solve the problems referred to above.But this
Sample disturbs normal production run.
Utility model content
For the problems referred to above, the purpose of this utility model there are provided a kind of well mouth sealing device, has preferably sealing.
To achieve these goals, embodiment of the present utility model provides a kind of well mouth sealing device, including:
Body, described body includes the cylinder that can wear oil pipe and the extrusion that can move, the one of described oil pipe relative to described cylinder
Hold and stretch in the chamber formed by described cylinder and described extrusion from described cylinder；
Packing, described packing can be set in outside oil pipe, described packing be arranged on described internal, and can be relative at described extrusion
Described cylinder is compressed when sliding；
Closeouts, described closeouts is arranged on described extrusion, and can move relative to described extrusion, and described closeouts has
Described the internal and first end that one end of oil pipe can be blocked and the second end that described cylinder can be passed can be stretched into；
Separator, described separator is arranged on the body, and is formed for by described closeouts and the external world with described body
The separate cavities of isolation.
Preferably, described extrusion includes the sleeved part being set in outside described cylinder and is arranged in described sleeved part and can stretch
Enter the press section in described cylinder.
Preferably, described sleeved part is threaded connection with described cylinder.
Preferably, described closeouts is located on described press section.
Preferably, described separator is set in outside the sleeved part of described extrusion.
Preferably, described separator is threaded connection with described sleeved part.
Preferably, in described extrusion is set in described cylinder.
Preferably, described separator is set in outside described cylinder.
Preferably, described extrusion is threaded connection with described closeouts, and the second end of described closeouts is provided with can be adjusted
Save the governor motion that described closeouts stretches into the length of part in described cylinder.
Preferably, the material of described packing can be the one in rubber or plastics.
In sum, on the basis of this utility model seals structure by extrusion and closeouts etc., can be will leak out by separator
Steam out is isolated again with the external world, thus plays the effect being again sealed off, and then improves the sealing effect of well mouth sealing device
Really.
Accompanying drawing explanation
The structural representation of the well mouth sealing device that Fig. 1 provides for embodiment of the present utility model.
The figures above is labeled as: 1, body；11, cylinder；111, chamber；12, extrusion；121, sleeved part；122、
Press section；13, packing；4, closeouts；41, governor motion；5, separator；51, separate cavities, 6, oil pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature
Can be easier to be understood by the person skilled in the art, thus protection domain of the present utility model is made apparent clear and definite boundary
Fixed.
As it is shown in figure 1, a kind of well mouth sealing device, including: body 1, cylinder 11, packing 13, extrusion 12, closure
Part 4 and separator 5.
Body 1 includes cylinder 11, extrusion 12, packing 13.Cylinder 11 can be a circle being internally provided with chamber 111
Cylinder, cylinder 11 has the first relative end and the second end, and the first end of cylinder 11 can include that is provided with oil pipe 6 energy
Stretch into the through hole in chamber 111.Preferably, through hole can be arranged on the center of cylinder 11 one end.
Packing 13 can be provided with in the chamber 111 of cylinder 11.The material of packing 13 can be elastomeric material or plastic material.
The oil pipe 6 stretched in chamber 111 is carried out spacing by packing 13.Concrete, the diameter of packing 13 can with in chamber 111
Footpath matches.The center of packing 13 offers the through hole that oil pipe 6 can pass.Packing 13 can produce change under active force
Shape, the through hole on packing 13 reduces, and then is clamped by the oil pipe 6 being located on packing 13, thus oil pipe 6 is served limit
The effect of position.Preferably, the quantity of packing 13 can be multiple.Many packings 13 are intervally arranged along the axis direction of cylinder 11,
The design using multiple packing 13 instead of original integral type packing, and compression performance is more preferable, and when certain of packing 13 is damaged,
Have only to change damage certain packing 13 and without changing whole packing 13, greatly reduce the maintenance cost in later stage.
Extrusion 12 can move and then extruding disk root 13 relative to cylinder 11, and then makes packing 13 can clamp oil pipe 6.Specifically
, extrusion 12 can include the sleeved part 121 being set in outside cylinder 11 and is arranged in sleeved part 121 and can stretch into
Press section 122 in cylinder 11.Extrusion 12 is set on the second end of cylinder 11, and then is sealed by cylinder 11 second end,
Extrusion 12 can be threaded connection the second end of cylinder 11.Extrusion 12 can be to the packing being arranged in chamber 111
13 apply active force, and then packing 13 is deformed, the oil pipe 6 that the packing 13 after deformation can will stretch in chamber 111
Play spacing effect.The oil pipe 6 stretched in chamber 111 can also be blocked by extrusion 12, plays oil pipe 6 close
The effect of envelope.
Extrusion 12 can be a cylinder with cavity.Spiral shell is passed through in the lateral wall of the medial wall of extrusion 12 and cylinder 1
Stricture of vagina connects.The opening of cylinder 11 is blocked and packing 13 is applied extruding force by the diapire of extrusion 12.This enforcement
Example not structure to extrusion 12 does concrete restriction, as long as extrusion 12 can move and can be pressed by packing 13 by cylinder 11 relatively
Tightly, it is all to meet requirement of the present utility model.
In another specific embodiment, extrusion 12 can also be set in cylinder 11.
In the present embodiment, press section 122 and the sleeved part 121 of extrusion 12 can be integral type structure.Certain,
In other optional embodiments, press section 122 and sleeved part 121 can be detachably connected by such as screw thread etc..
In the present embodiment, extrusion 12 being also provided with closeouts 4, closeouts 4 can be along the axis of extrusion 12
Arranging, closeouts 4 can be connected with extrusion 12 by screw thread and can be moved with opposing compression part 12.Closeouts 4 can be to stretching
The oil pipe 6 entered in chamber 111 blocks.The second end of closeouts 4 is provided with and can regulate closeouts 4 and stretch into cylinder 11
The governor motion 41 of the length of interior part.Preferably, closeouts 4 can be by being arranged on the spanner side in closeouts 4 and the external world
The cooperation of spanner, and then regulate the length of its part stretching into chamber 111.When closeouts 4 screws, one end of closeouts 4
Abut against with oil pipe 6, and then oil pipe 6 is blocked；When closeouts 4 unscrews, oil pipe 6 is not blocked by closeouts 4.
Separator 5 can be set in the end of extrusion 12 in the way of being threaded connection, and separator 5 is an one end open
Cylinder, and formed for separate cavities 51 that closeouts 4 is isolated from the outside with body 1.Closeouts 4 can be to oil pipe
6 closure.Concrete, extrusion 12 and separator 5 can be coaxially disposed, and cylinder 11 can be stretched in one end of closeouts 4
In chamber 111, the other end of closeouts 4 extend in the separate cavities of separator 5 so that separator 5 can by closeouts 4 with
And closeouts 4 is isolated with the external world with the position that extrusion 12 is combined.
Preferably, separator 5 can be located on extrusion 12, and then forms a separate cavities 51 with extrusion 12；Closeouts
Part in 4 chambers 111 not extending into cylinder 11 extend in separate cavities 51.Therefore separator 5 energy closeouts 4 will be with outward
Boundary isolates.The present embodiment not concrete structure to separator 5 does concrete restriction, as long as separator 5 can be at closeouts 4 and oil
At the closure of pipe 6 during steam generation leakage, the steam that can will leak out out is isolated, and is all to meet requirement of the present utility model.
In the enforcement that another one is concrete, separator 5 can be set in outside cylinder 11.Such as, the inwall of extrusion 12 can
Can be threaded connection with the outer wall of cylinder 11.
When carrying out steam injection operation in oil well, by the through hole being arranged on cylinder 11 diapire, needs are carried out the oil sealed
Pipe 6 extend in the chamber 111 of cylinder 11, and the end of oil pipe 6 abuts against through packing 13 with extrusion 12.By rotation
Tight extrusion 12 so by press section 122 to intrinsic pressure, press section 122 applies an active force to packing 13, and packing 13 produces
Change shape, and then extrudes the tube wall of oil pipe 6, and oil pipe 6 is fixed because of the effect of the power that is squeezed.Then pass through
It is arranged on the spanner side on adjusting rod 41 and the cooperation of extraneous spanner so that the end of oil pipe 6 is blocked by closeouts 4,
And then oil pipe 6 is sealed.After closeouts 4 is tightened onto suitable position, more sheathed separator 5, separator on extrusion 12
The outer wall of the inwall of 5 and extrusion 12 is by threaded engagement, when the position-limiting action of oil pipe 6 was lost efficacy by packing 13, steam from
The junction of closeouts 4 and extrusion 12 is revealed, and the steam leaked enters in the separate cavities 51 of separator 5, and then
Prevent steam outwardly to reveal, serve the effect that extrusion 12 is again sealed off.
After steam injection terminates, first separator 5 pipe wrench is disassembled from extrusion 12, the most outwards unscrews closeouts 4,
And then to oil pipe 6 depressurization.
It should be understood that above description is to illustrate rather than to limit.By reading foregoing description,
Many embodiments outside the example provided and many application the most all will be apparent from.Cause
This, the scope of this teaching should not determine with reference to foregoing description, but should want with reference to claims and these rights
The four corner seeking had equivalent determines.Patent application and public affairs are included for comprehensive purpose, all articles and reference
The disclosure accused all is passed through with reference to being incorporated herein.Any aspect of theme disclosed herein is omitted not in aforementioned claim
It is to abandon this body matter, also should not be considered as inventor and this theme is not thought of as disclosed utility model theme
A part.
Claims (10)
1. a well mouth sealing device, it is characterised in that including:
Body, described body includes the cylinder that can wear oil pipe and the extrusion that can move, the one of described oil pipe relative to described cylinder
Hold and stretch in the chamber formed by described cylinder and described extrusion from described cylinder；
Packing, described packing can be set in outside oil pipe, described packing be arranged on described internal, and can be relative at described extrusion
Described cylinder is compressed when sliding；
Closeouts, described closeouts is arranged on described extrusion, and can move relative to described extrusion, and described closeouts has
Described the internal and first end that one end of oil pipe can be blocked and the second end that described cylinder can be passed can be stretched into；
Separator, described separator is arranged on the body, and is formed for by described closeouts and the external world with described body
The separate cavities of isolation.
Well mouth sealing device the most according to claim 1, it is characterised in that described extrusion includes being set in described cylinder
External sleeved part and be arranged in described sleeved part and the press section in described cylinder can be stretched into.
Well mouth sealing device the most according to claim 2, it is characterised in that described sleeved part and described cylinder pass through spiral shell
Stricture of vagina connects.
Well mouth sealing device the most according to claim 2, it is characterised in that described closeouts is located in described press section
On.
Well mouth sealing device the most according to claim 2, it is characterised in that described separator is set in described extrusion
Sleeved part outside.
Well mouth sealing device the most according to claim 2, it is characterised in that described separator passes through with described sleeved part
Threaded.
Well mouth sealing device the most according to claim 1, it is characterised in that described extrusion is set in described cylinder.
Well mouth sealing device the most according to claim 7, it is characterised in that described separator is set in outside described cylinder.
Well mouth sealing device the most according to claim 1, it is characterised in that described extrusion passes through with described closeouts
Threaded, the second end of described closeouts is provided with and can regulate described closeouts and stretch into the length of the part in described cylinder
Governor motion.
Well mouth sealing device the most according to claim 1, it is characterised in that the material of described packing can be rubber or
One in plastics, described packing can be multiple, and multiple packings are intervally arranged along the axis direction of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140218.1U CN205477495U (en) | 2016-02-24 | 2016-02-24 | Wellhead sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140218.1U CN205477495U (en) | 2016-02-24 | 2016-02-24 | Wellhead sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477495U true CN205477495U (en) | 2016-08-17 |
Family
ID=56679182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620140218.1U Active CN205477495U (en) | 2016-02-24 | 2016-02-24 | Wellhead sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930717A (en) * | 2015-12-31 | 2017-07-07 | 中国石油天然气股份有限公司 | Heat the well mouth sealing device of cable in underground |
-
2016
- 2016-02-24 CN CN201620140218.1U patent/CN205477495U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930717A (en) * | 2015-12-31 | 2017-07-07 | 中国石油天然气股份有限公司 | Heat the well mouth sealing device of cable in underground |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205945001U (en) | Cable intermediate head sealing device | |
| CN205477495U (en) | Wellhead sealing device | |
| CN106961088A (en) | A kind of cable duct plugging device | |
| CN201246554Y (en) | Corrugated tube joint | |
| CN206332424U (en) | End waterproof and moistureproof sealing device | |
| CN202704235U (en) | Automobile tire glue-water bottle | |
| CN206009143U (en) | A kind of regulation injection syringe of joint seal glue | |
| CN206481028U (en) | A kind of cable pore flexible blockage device | |
| CN206456800U (en) | A kind of breakage-proof fluidized disk mounting structure | |
| CN205479948U (en) | Sealed casing cap | |
| CN216081934U (en) | Cylinder jacket water pressure test equipment | |
| CN205858262U (en) | External casing packer | |
| CN206373029U (en) | A kind of plunger-type resorption glue dispensing valve | |
| CN206712385U (en) | A kind of cable duct plugging device | |
| CN2878872Y (en) | Pipe capping | |
| CN207454122U (en) | The diesel engine cylinder block bowl-type patch reliably sealed can be achieved | |
| CN201844050U (en) | Soft sealing locked internal-thread connecting gate valve | |
| CN206319931U (en) | A kind of gas lubrication device | |
| CN206398096U (en) | A kind of new types of diaphragm valve | |
| CN206827243U (en) | A kind of white wine bottle cap with cork | |
| CN205937806U (en) | Telescopic head of screw thread | |
| CN205938334U (en) | Valve leakage prosthetic devices | |
| CN214220005U (en) | Modular civil engineering outer wall screw hole shutoff structure | |
| CN206130418U (en) | Drainage pipe closes water and suppresses gasbag | |
| CN204140114U (en) | A kind of plug-in type one-way lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |