CN207847582U - Thermal recovery is intubated sealer - Google Patents
Thermal recovery is intubated sealer Download PDFInfo
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- CN207847582U CN207847582U CN201721642687.4U CN201721642687U CN207847582U CN 207847582 U CN207847582 U CN 207847582U CN 201721642687 U CN201721642687 U CN 201721642687U CN 207847582 U CN207847582 U CN 207847582U
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- sealing
- intubation
- intubated
- sealer
- thermal recovery
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Abstract
The utility model is related to a kind of thermal recoveries to be intubated sealer.It includes sealing intubation and sealing shroud that the thermal recovery, which is intubated sealer, the lower end of sealing intubation is the inserted terminal for being inserted into sealing shroud, it further include the elastic sealing element being set in sealing intubation, in sealing intubation the fixation Stop structure with elastic sealing element block cooperation in an axial direction is equipped in the top of elastic sealing element, in the up and down movable sleeve being equipped with for top pressure elastic sealing element in the lower section of elastic sealing element, sealing shroud is equipped with for the block seat with the block cooperation in an axial direction of movable sleeve lower face sealing intubation.Sealer is intubated using the utility model thermal recovery, the heat resisting and pressure resisting performance of thermal recovery intubation sealing can be improved, ensure the safe and reliable of construction.
Description
Technical field
The utility model is related to a kind of thermal recoveries to be intubated sealer.
Background technology
At present in thermal production well, when using centrifugal pump and screw pump, since the temperature resistant capability of centrifugal pump and screw pump is limited, need
It to use steam injection and the separated tubing string twice that recovers the oil, one could be completed and handled up the period.But after steam injection and open flow, due to heat
Well is adopted there is also blowing ability, when acting steam injection string, to prevent from gushing on grease, the problems such as stratum ability further decreases, needed
Kill-job operation is carried out to oil well.When kill-job operation, well killing fluid is easy to absorb pit shaft ambient heat, and near wellbore zone temperature is made to drop
It is low, cold damage is caused to oil reservoir, turns the difficulty that drives a well after taking out, or even oil well is killed；On the other hand, because well killing fluid is easy to oil reservoir
It pollutes, is particularly acute for water sensitivity heavy crude reservoir.Therefore thermal production well is frequently with thermal packer and thermal recovery derailing switch
It matches, does not need kill-job operation, prevent stratum cold damage, while making full use of stratum energy.
Notification number is CN203783550U, and the day for announcing is that the Chinese utility model patent of 2014.08.20 describes a kind of steaming
Vapour, which is handled up, exempts from kill-job device, and the thermal recovery intubation hermetic unit which exempts from kill-job device includes mainly sealing intubation, main body
Sealing shroud, sealing ring and the Valve with sliding bush that pipe is formed.When gas injection and production, sealing intubation passes through with sealing shroud in seal groove
Sealing ring seals, and sealing intubation whereabouts contact slide valve buckle opens thermal recovery switch, and after gas injection, sealing is intubated and above carries, slide valve buckle
Thermal recovery switch is left, kill-job gas injection production is exempted from realization.But the sealing intubation is only sealed by a seal ring with sealing shroud,
Sealing intubation wants frequent relative motion, sealing ring to be also easily deformed, damage in high temperature and high pressure environment with sealing shroud, causes to seal
Not tight, gas injection temperature reaches well head, and working security cannot be guaranteed.
Utility model content
The utility model thermal recovery intubation sealer is designed to provide a kind of thermal recovery intubation sealer, solves existing thermal recovery
Intubation and sealing shroud are only sealed by sealing ring in intubation seal process, poor sealing performance, heat resisting and pressure resisting poor performance, construction safety
The problem of property cannot be guaranteed.
To achieve the above object, the technical solution of the utility model is：A kind of thermal recovery intubation sealer, including sealing intubation
And sealing shroud, the lower end for sealing intubation are the inserted terminal for being inserted into sealing shroud, further include the bullet being set in sealing intubation
Property sealing element, sealing intubation is upper to be equipped with and the elastic sealing element fixation that block coordinates in an axial direction in the top of the elastic sealing element
Stop structure, sealing intubation is in the up and down activity being equipped with for top pressure elastic sealing element in the lower section of elastic sealing element
Set, the sealing shroud are equipped with for the block seat with the block cooperation in an axial direction of movable sleeve lower face.
The elastic sealing element is by along sealing the axial folded gasket-like set of intubation into, the gasket towards adjacent close
The side of packing is equipped with lozenges, and radially outside tilts for the lower part of lozenges.
One end of axial one end annular groove of the gasket, the close annular groove of adjacent seals pad is equipped with taper protrusion, annular groove
Section be swallowtail shape, raised section be triangle.
The fixed Stop structure is formed by the shaft shoulder being arranged in sealing intubation.
The wall thickness for the gasket being set in sealing intubation is less than the height of the shaft shoulder.
The sealing intubation is equipped with the sliding slot being uniformly distributed along the circumference, and sliding slot is intubated axially extending, the movable sleeve along sealing
It is equipped with the boss for stretching into sliding slot.
Be equipped with ladder hole section in the sealing shroud, the block seat be by connection ladder hole section major diameter section and path section it
Between inner chamfer formed, the movable sleeve lower end is equipped with the outer chamfer that is adapted to inner chamfer.
It is equipped with baffle ring in the lower end of movable sleeve in the sealing intubation, baffle ring is connected through a screw thread with sealing intubation.
The sealing intubation is equipped with seal groove, and sealing ring is arranged on seal groove.
The utility model has the beneficial effects that：The thermal recovery insertion pipe packer is by sealing the machinery pressure being intubated with sealing shroud
Power, sealing shroud squeeze wedging ring and pad certain load, gasket stress expansion, to realize sealing intubation and sealing to elevated-temperature seal
The double-layer seal of set improves the heat resisting and pressure resisting performance of thermal recovery intubation sealing, ensures the safe and reliable of construction.
Description of the drawings
Fig. 1 is the structural schematic diagram that thermal recovery is intubated sealer；
Fig. 2 is the structural schematic diagram of gasket.
Reference sign：1- seals intubation, 2- sealing shrouds, 3- sealing rings, 4- gaskets, 41- tapers protrusion, 42- swallows
Stern notch, 5- movable sleeves, 6- baffle rings.
Specific implementation mode
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
Specific embodiment of the utility model, as shown in Figure 1 to Figure 2, the thermal recovery be intubated sealer include sealing intubation 1,
Sealing shroud 2, sealing ring 3, gasket 4, movable sleeve 5 and baffle ring 6, sealing intubation 1 are provided with seal groove, and sealing ring 3 is mounted in seal groove
On；The shaft shoulder is provided in sealing intubation 1, gasket 4 is arranged between the shaft shoulder and movable sleeve 5；4 one end of gasket is dovetail groove
42, the other end is taper protrusion 41, and plug-in type is superimposed；Sealing intubation 1 is equipped with the sliding slot being uniformly distributed along the circumference, sliding slot edge
Sealing intubation is axially extending, and movable sleeve 5 is equipped with the boss for stretching into sliding slot, and boss stretches into the sliding slot of sealing intubation 1；Sealing shroud
Inner chamfer between the major diameter section and path section of ladder hole section forms block seat；Baffle ring 6 is connect by screw thread with sealing intubation 1,
Withstand movable sleeve 5.When gas injection and production, sealing shroud 2 is inserted into sealing with flow string tripping in designated depth, tripping in sealing intubation 1
In set 2, sealing ring 3 continues traveling downwardly first to sealing shroud 2 and 1 sealing of sealing intubation and opens thermal recovery switch, and thermal recovery switch fully opens
Afterwards, sealing intubation 1 pushes certain load, and the block seat of sealing shroud 2 withstands movable sleeve 5, and 5 upper end crush seal pad 4 of movable sleeve is swollen
Gasket 4 is opened, after forming dual-seal, steam injection and production can be carried out.When needing replacing tubing string and stewing well, sealing intubation 1 is above put forward,
Movable sleeve 5 loses the pressing force of 2 block seat of sealing shroud, and 5 upper end of movable sleeve disappears to the pressure of gasket 4.Gasket 4 recycles,
Sealing is lost, continues above to carry, closes thermal recovery switch, can carry out replacing tubing string and stewing well.
In other embodiments, gasket can also be set as other structures, for example, both ends are all the superposition of planar structure；One
End is plane, and the other end is that the plug-in type of lozenges is superimposed；Or one thicker gasket of whole installation；It is intubated to sealing
When applying pressure, gasket can be made to expand, form double-layer seal.
Claims (9)
1. a kind of thermal recovery is intubated sealer, including sealing intubation and sealing shroud, the lower end for sealing intubation is for being inserted into sealing shroud
Interior inserted terminal, it is characterised in that：Further include the elastic sealing element being set in sealing intubation, sealing is intubated in the elasticity
The top of sealing element is equipped with the fixation Stop structure with elastic sealing element block cooperation in an axial direction, and sealing intubation is in elastic sealing element
The up and down movable sleeve being equipped with for top pressure elastic sealing element in lower section, the sealing shroud, which is equipped with, to be used for and movable sleeve
The block seat of lower face block cooperation in an axial direction.
2. thermal recovery according to claim 1 is intubated sealer, it is characterised in that：The elastic sealing element is by being inserted along sealing
Pipe axially folds the gasket-like set at the gasket is equipped with lozenges, the lower part of lozenges towards the side of adjacent seals pad
Radially outside tilts.
3. thermal recovery according to claim 2 is intubated sealer, it is characterised in that：Axial one end of the gasket is equipped with ring
One end of slot, the close annular groove of adjacent seals pad is equipped with taper protrusion, and the section of annular groove is swallowtail shape, and raised section is three
It is angular.
4. thermal recovery according to claim 2 or 3 is intubated sealer, it is characterised in that：The fixed Stop structure is by sealing
The shaft shoulder being arranged in intubation is formed.
5. thermal recovery according to claim 4 is intubated sealer, it is characterised in that：The sealing being set in sealing intubation
The wall thickness of pad is less than the height of the shaft shoulder.
6. thermal recovery according to claim 1 or 2 or 3 is intubated sealer, it is characterised in that：The sealing intubation is equipped with edge
The sliding slot of circumference uniform distribution, sliding slot is axially extending along sealing intubation, and the movable sleeve is equipped with the boss for stretching into sliding slot.
7. thermal recovery according to claim 1 or 2 or 3 is intubated sealer, it is characterised in that：Ladder is equipped in the sealing shroud
Hole section, the block seat is that the inner chamfer between major diameter section and path section by connection ladder hole section is formed, under the movable sleeve
End is equipped with the outer chamfer being adapted to inner chamfer.
8. thermal recovery according to claim 1 or 2 or 3 is intubated sealer, it is characterised in that：In activity in the sealing intubation
The lower end of set is equipped with baffle ring, and baffle ring is connected through a screw thread with sealing intubation.
9. thermal recovery according to claim 1 or 2 or 3 is intubated sealer, it is characterised in that：The sealing intubation is equipped with close
Sealing groove is arranged with sealing ring on seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721642687.4U CN207847582U (en) | 2017-11-30 | 2017-11-30 | Thermal recovery is intubated sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721642687.4U CN207847582U (en) | 2017-11-30 | 2017-11-30 | Thermal recovery is intubated sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207847582U true CN207847582U (en) | 2018-09-11 |
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ID=63423069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721642687.4U Active CN207847582U (en) | 2017-11-30 | 2017-11-30 | Thermal recovery is intubated sealer |
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| Country | Link |
|---|---|
| CN (1) | CN207847582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119783A (en) * | 2018-11-01 | 2020-05-08 | 中国石油化工股份有限公司 | Sealed cartridge device, cannula and tube string |
-
2017
- 2017-11-30 CN CN201721642687.4U patent/CN207847582U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119783A (en) * | 2018-11-01 | 2020-05-08 | 中国石油化工股份有限公司 | Sealed cartridge device, cannula and tube string |
| CN111119783B (en) * | 2018-11-01 | 2021-11-02 | 中国石油化工股份有限公司 | Sealed cartridge device, cannula and tube string |
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