CN106930717A - Heat the well mouth sealing device of cable in underground - Google Patents
Heat the well mouth sealing device of cable in underground Download PDFInfo
- Publication number
- CN106930717A CN106930717A CN201511032350.7A CN201511032350A CN106930717A CN 106930717 A CN106930717 A CN 106930717A CN 201511032350 A CN201511032350 A CN 201511032350A CN 106930717 A CN106930717 A CN 106930717A
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- Prior art keywords
- sealing
- cable
- squeeze
- supervisor
- sealing member
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/01—Sealings characterised by their shape
Abstract
The invention provides the well mouth sealing device that cable is heated in a kind of underground, sealing supervisor is fixed at well head and for wearing cable, upper press cover is provided with the upper end of sealing supervisor, lower cover is provided with the lower end of sealing supervisor, all being offered on upper press cover and lower cover can be by the opening of cable.Well mouth sealing device also includes upper squeeze sealing member and lower squeeze sealing member, upper squeeze sealing member is arranged in sealing supervisor positioned at the downside of upper press cover and coordinates with upper press cover, and lower squeeze sealing member is arranged in sealing supervisor positioned at the upside of lower cover and coordinates with lower cover.Rubber injecting valve is arranged on sealing supervisor and is located at the position between upper squeeze sealing member and lower squeeze sealing member.Technical scheme can effectively solve the problems, such as that heating cable sealing at well head in underground is poor in the prior art.
Description
Technical field
The present invention relates to production of hydrocarbons technical field, the well mouth sealing device of cable is heated in particular to a kind of underground.
Background technology
When Oil/gas Well is produced, in well fluids downhole passes through wellbore lift to surface process, can cause because Crude viscosity is high or analyses wax
The circulation of pit shaft Produced Liquid is not smooth or oil pipe blocking, causes the Oil/gas Well underproduction even to stop production.Add when underground electricity can be used after problem appearance
Thermal process solves this problem, i.e., in the flow string under enter a heating cable, controlled by ground power control pod with middle frequency,
Well liquid within the cartridge is heated, heating is reached and is dropped the glutinous, purpose of de-plugging.
During being heated to the crude oil in oil pipe using heating cable, crude oil can recover circulation, and its oil pressure can also rise
Height, crude oil will enter heat under and gushed outside the hole position of cable or spray.Accordingly, it would be desirable to enter under install close in the hole position of cable
Seal apparatus, prevent crude oil leakage.And the intensity for being limited in sealing in implementation process of existing well head heating cable seal technique is not
High and easily seal failure, is easily caused crude oil leakage at well head, pollution environment.
The content of the invention
The well mouth sealing device of cable is heated it is a primary object of the present invention to provide a kind of underground, to solve underground in the prior art
The problem of heating cable sealing difference at well head.
To achieve these goals, the invention provides the well mouth sealing device that cable is heated in a kind of underground, including：Sealing supervisor,
For wearing cable and being fixed at well head；Upper press cover, is arranged in the upper end of sealing supervisor, and being offered on upper press cover to pass through
The opening of cable；Lower cover, is arranged in the lower end of sealing supervisor, and being offered on lower cover can be by the opening of cable；It is upper to squeeze
Laminate seal, upper squeeze sealing member is arranged in sealing supervisor positioned at the downside of upper press cover and coordinates with upper press cover, upper crush seal
Being offered in part can be by the upper extrusion mouth of cable；Lower squeeze sealing member, lower squeeze sealing member is arranged in sealing supervisor and is located at down
The upside of gland simultaneously coordinates with lower cover, and being offered in lower squeeze sealing member can be by the lower extrusion mouth of cable；Rubber injecting valve, is set
It is located at position between upper squeeze sealing member and lower squeeze sealing member on sealing supervisor, upper squeeze sealing member and lower crush seal
Part deforms clamping cables after the colloid extruding injected by rubber injecting valve.
Further, upper squeeze sealing member includes upper sealing ring and upper deformable member, and being offered in upper deformable member can be by the upper logical of cable
Hole, upper deformable member is arranged on the middle part of upper sealing ring, upper sealing ring deformable member in the extruding after by the pressure of the colloid for injecting
Through hole is set to reduce clamping cables.
Further, upper deformable member is truncated cone-shaped, and through hole is offered in the middle part of upper deformable member, is offered on the side wall of upper deformable member
Upper groove.
Further, step surface is offered on the side wall of upper deformable member, the shape of step surface is mutually fitted with the shape at the middle part of upper sealing ring
Match somebody with somebody.
Further, lower squeeze sealing member is identical with the structure of upper squeeze sealing member.
Further, sealing dividing plate is provided between upper press cover and upper squeeze sealing member, is set between lower cover and lower squeeze sealing member
Lower sealing dividing plate is equipped with, upper squeeze sealing member is abutted with upper sealing dividing plate, and lower squeeze sealing member is abutted with lower sealing dividing plate.
Further, upper seal is provided between upper sealing dividing plate and upper press cover, is provided with down between lower sealing dividing plate and lower cover close
Sealing.
Further, underground heating CA cable assembly also include sealed briquette, sealed briquette be fixedly installed on squeeze sealing member and it is lower squeeze
In sealing supervisor between laminate seal, sealed briquette is used for clamping cables and the space sealed in supervisor is divided into two injecting glues
Space, each injecting glue space is correspondingly provided with rubber injecting valve.
Further, sealed briquette is multiple, and multiple sealed briquettes compartment of terrain between upper squeeze sealing member and lower squeeze sealing member sets
Put, the space sealed in supervisor is divided into multiple injecting glue spaces by multiple sealed briquettes.
Further, sealed briquette includes fixed briquetting, mobile briquetting and operation handle, and the first clamping is provided with fixed briquetting
Portion, is provided with the second clamping section being adapted with the first clamping section on mobile briquetting, co-clip is matched somebody with somebody in the first clamping section with the second clamping section
Tight cable, operation handle is connected with mobile briquetting, and operation handle is used for mobile briquetting near fixed briquetting, and sealed briquette is also
Including block, block is arranged on the inwall of sealing supervisor the position for having gap between mobile briquetting.
Further, well mouth sealing device also includes pressure cap, and pressure cap is arranged on the upper end of sealing supervisor.
Apply the technical scheme of the present invention, during use, colloid causes that squeeze sealing member and lower squeeze sealing member can be with
Closely step up cable, and then effectively seal against the gap at sealing supervisor's upper and lower side and between cable.The colloid of injection can also have
Gap between effect ground filling sealing supervisor's other parts and cable, further strengthens sealing effectiveness.Meanwhile, the colloid of injection also may be used
With, the compressive property of enhancing sealing main pipe sealing structure so that well mouth sealing device can withstand Nian Jie with sealing supervisor
Huge pressure after heating produced by crude oil.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.Below
By reference picture, the present invention is further detailed explanation.
Brief description of the drawings
The Figure of description for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the embodiment one of the well mouth sealing device of heating cable in underground of the invention；
Fig. 2 shows the first structural representation of the upper squeeze sealing member of the well mouth sealing device of Fig. 1；
Fig. 3 shows second structural representation of the upper squeeze sealing member of the well mouth sealing device of Fig. 1；
Fig. 4 shows the structural representation of the embodiment two of the well mouth sealing device of heating cable in underground of the invention；
Fig. 5 shows the structural representation of the sealed briquette of the well mouth sealing device of Fig. 4；
Fig. 6 shows the structural representation of the embodiment three of the well mouth sealing device of heating cable in underground of the invention.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, sealing supervisor；20th, upper press cover；21st, upper sealing dividing plate；22nd, upper seal；30th, lower cover；31st, it is close under
Packing plate；32nd, lower seal；40th, upper squeeze sealing member；50th, lower squeeze sealing member；60th, rubber injecting valve；41st, upper sealing
Ring；42nd, upper deformable member；70th, sealed briquette；71st, fixed briquetting；72nd, mobile briquetting；73rd, operation handle；74th, keep off
Block；80th, pressure cap.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention
The embodiment of a part, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
There is the every other embodiment made and being obtained under the premise of creative work, should all belong to the scope of protection of the invention.
Fig. 1 shows the embodiment one of the well mouth sealing device of heating cable in underground of the invention, and sealing supervisor 10 is fixed on well head
Place and for wearing cable, upper press cover 20 is provided with the upper end of sealing supervisor 10, is set in the lower end of sealing supervisor 10
There is lower cover 30, all being offered on upper press cover 20 and lower cover 30 can be by the opening of cable.Well mouth sealing device also includes upper
Squeeze sealing member 40 and lower squeeze sealing member 50, upper squeeze sealing member 40 are arranged in sealing supervisor 10 positioned at upper press cover 20
Downside simultaneously coordinates with upper press cover 20, lower squeeze sealing member 50 be arranged on sealing supervisor 10 in positioned at lower cover 30 upsides and with
Lower cover 30 coordinates.Rubber injecting valve 60 be arranged on sealing supervisor 10 be located at upper squeeze sealing member 40 and lower squeeze sealing member 50 it
Between position at, being offered in upper squeeze sealing member 40 and lower squeeze sealing member 50 can be by the lower extrusion mouth of cable, upper extruding
Seal 40 and lower squeeze sealing member 50 deform clamping cables after the colloid extruding injected by rubber injecting valve 60.In the mistake for using
Cheng Zhong, colloid allows that squeeze sealing member 40 and lower squeeze sealing member 50 closely step up cable, and then effectively seals against
Gap at sealing 10 upper and lower sides of supervisor and between cable.The colloid of injection can also effectively fill sealing 10 other parts of supervisor
Gap between cable, further strengthens sealing effectiveness.Meanwhile, the colloid of injection can also be Nian Jie with sealing supervisor 10, enhancing
The compressive property of sealing 10 internal seal structures of supervisor so that well mouth sealing device can withstand huge produced by crude oil after heating
Big pressure.Optionally, the outside of 10 lower ends of sealing supervisor is provided with thread segment, and sealing supervisor 10 is screwed onto the production tree of well head
On.
Optionally, in the technical scheme of embodiment one, as shown in Fig. 2 upper squeeze sealing member 40 includes the He of upper sealing ring 41
Upper deformable member 42, being offered in upper deformable member 42 can be arranged in upper sealing ring by the upper through hole of cable, upper deformable member 42
Portion.The deformable member 42 in the extruding after by the pressure of the colloid for injecting of upper sealing ring 41 makes through hole reduce clamping cables.Can
Choosing, in the technical scheme of embodiment one, upper deformable member 42 is truncated cone-shaped, and the middle part of upper deformable member 42 offers through hole,
Groove is offered on the side wall of upper deformable member 42.After the compression of upper sealing ring 41, upper sealing ring 41 can be along the top of truncated cone-shaped
Portion moves towards bottom, the deformable member 42 on the meeting banding of upper sealing ring 41 during movement, causes deformable member 42 along logical
Groove reduces, and then steps up cable completely.Optionally, offer step surface on the side wall of upper deformable member 42, the shape of step surface with
The shape at the middle part of upper sealing ring 41 is adapted.It is upper close when the step surface of upper deformable member 42 props up the middle part of upper sealing ring 41
Seal ring 41 would not continue deformable member 42 on banding, it is to avoid upper deformable member 42 Le has been broken electricity when pressure is excessive in sealing supervisor 10
Cable.
Optionally, as shown in figure 3, two grooves can be opened up on the upper deformable member 42 of truncated cone-shaped, two upper grooves are symmetrically
It is opened on the side wall of deformable member 42.So, upper deformable member 42 has just been divided into two panels, by common after the banding of upper sealing ring 41
It is same to step up cable.
As shown in figure 1, in the technical scheme of embodiment one, the structure phase of lower squeeze sealing member 50 and upper squeeze sealing member 40
Together.Certainly, the operation principle of lower squeeze sealing member 50 is also identical with upper squeeze sealing member 40.
As shown in figure 1, it is optional, in the technical scheme of embodiment one, set between upper press cover 20 and upper squeeze sealing member 40
Sealing dividing plate 21 is equipped with, lower sealing dividing plate 31, upper squeeze sealing member are provided between lower cover 30 and lower squeeze sealing member 50
40 are abutted with upper sealing dividing plate 21, and lower squeeze sealing member 50 is abutted with lower sealing dividing plate 31.Upper sealing dividing plate 21 and lower sealing
The one side of dividing plate 31 can aid in squeeze sealing member 40 and lower squeeze sealing member 50 to work, and on the other hand can also cause note
Sealing effectiveness more preferably, increases the pressure that well mouth sealing device is able to take after glue.
Optionally, as shown in figure 1, being provided with upper seal 22 between upper sealing dividing plate 21 and upper press cover 20, lower sealing every
Lower seal 32 is provided between plate 31 and lower cover 30.Upper seal 22 and lower seal 32 further enhance sealing master
Sealing property at the upper and lower side of pipe 10.Optionally, upper seal 22 and lower seal 32 are sealed packing.
As shown in figure 1, well mouth sealing device also includes pressure cap 80, pressure cap 80 is arranged on the upper end of sealing supervisor 10.Pressure cap 80
Set and can provide support force to the internal structure of sealing supervisor 10, and then strengthen the pressure that is able to take of well mouth sealing device.
Fig. 4 shows the technical scheme of the embodiment of the present invention two, and the technical scheme of the technical scheme and embodiment one is compared,
Difference is with underground heating CA cable assembly also includes sealed briquette 70, and sealed briquette 70 is fixedly installed on squeeze sealing member 40
And in the sealing supervisor 10 between lower squeeze sealing member 50, sealed briquette 70 is used for clamping cables and by sealing supervisor 10
Space is divided into two injecting glue spaces, and each injecting glue space is correspondingly provided with rubber injecting valve 60.The space point in supervisor 10 will be sealed
After being divided into two injecting glue spaces, each injecting glue space sealing structure independent equivalent to enhances sealing effectiveness.Meanwhile,
The colloid that sealed briquette 70 can also be given in injecting glue space provides enough support forces, and then strengthens the pressure-resistant performance of well mouth sealing device.
Optionally, as shown in Figure 4 and Figure 5, sealed briquette 70 includes fixed briquetting 71, mobile briquetting 72 and operation handle
73.The first clamping section is provided with fixed briquetting 71, the second folder being adapted with the first clamping section is provided with mobile briquetting 72
Tight portion, the first clamping section is matched for clamping tightly cable with the second clamping section.Operation handle 73 is connected with mobile briquetting 72, operation handle
73 are used for mobile briquetting 72 near fixed briquetting 71, and sealed briquette 70 also includes block 74, and block 74 is arranged on sealing
There is the position in gap on the inwall of supervisor 10 between mobile briquetting 72.In injecting glue space during injecting glue, the fixed He of briquetting 71
Mobile briquetting 72 serves good iris action, and block 74 has then stopped gap, it is to avoid two injecting glue space UNICOMs.
Fig. 6 shows the technical scheme of the embodiment of the present invention three, and the technical scheme of the technical scheme and embodiment two is compared,
Difference being two with, sealed briquette 70, two sealed briquettes 70 upper squeeze sealing member 40 and lower squeeze sealing member 50 it
Between be positioned apart from, two sealed briquettes 70 will seal supervisor 10 in space be divided into three injecting glue spaces.With embodiment two
Technical scheme compare, the technical scheme sealing effectiveness of embodiment three is more excellent, and pressure-resistant performance is also more good.
The occupation mode of above-described embodiment is illustrated below in conjunction with specific service condition：
1st, with wellhead tree tree rated pressure 25MPa, output medium association Gas content 29 DEG C of oil flow production wells of relatively low crude oil freezing point
As a example by, the well mouth sealing device of single groove is only provided with using the upper deformable member 42 of embodiment one.
Step one：According to heating cable wellhead heat resisting and pressure resisting characteristic, upper seal 22 and lower seal 32 from 120 DEG C of heatproof with
On encapsulant, the fluid sealant of the injecting sealant of injecting glue from more than 800 DEG C of heatproof.
Step 2：During entering under cable, cable seal is ensured by upper seal 22 and lower seal 32, tighten pressure
Lid 20 and lower cover 30, under enter cable.
Step 3：After the completion of entering under cable, colloid-injecting gun is installed, opens rubber injecting valve 60, inject injecting sealant colloid, injecting glue pressure
Power is qualified more than 30Mpa, and cable is powered and uses after the completion of injecting glue, observes sealing situation, and rubber injecting valve is closed in stingless leakage, if any
Thorn leakage, continues injecting glue and is not pierced to well head and do not leak, after the completion of close rubber injecting valve.
2nd, by taking wellhead tree tree rated pressure 35MPa, 29 DEG C of oil flow production wells of output crude oil freezing point as an example, using embodiment two
Upper deformable member 42 be only provided with the well mouth sealing device of single groove.
Step one：According to heating cable wellhead heat resisting and pressure resisting characteristic, upper seal 22 and lower seal 32 from 120 DEG C of heatproof with
On encapsulant, the fluid sealant of the injecting sealant of injecting glue from more than 800 DEG C of heatproof.
Step 2：During entering under cable, cable seal is ensured by upper seal 22 and lower seal 32, tighten pressure
Lid 20 and lower cover 30, under enter cable.
Step 3：After the completion of entering under cable, the mobile briquetting 72 of the movement of operation handle 73 makes the first folder near fixed briquetting 71
Tight portion is matched for clamping tightly cable with the second clamping section, installs colloid-injecting gun, opens the rubber injecting valve 60 on 10 tops of sealing supervisor, injection sealing
Injecting colloid, injection pressure is qualified more than 40Mpa after filling glue, closes the rubber injecting valve 60 on top.
Step 4：The rubber injecting valve 60 of 10 bottoms of sealing supervisor is opened, injecting sealant colloid is injected, injection pressure is more than after filling glue
40Mpa is qualified, closes the rubber injecting valve 60 of bottom.
Step 5：After the completion of injecting glue cable be powered use, observe sealing situation, such as spinosity leakage, repeat step three, step 4 after
Continuous injecting glue is not pierced to well head and not leaked, after the completion of close rubber injecting valve.
3rd, by taking wellhead tree tree rated pressure 75MPa, 35 DEG C of oil flow production wells of output crude oil freezing point as an example, using embodiment three
Upper deformable member 42 be provided with two well mouth sealing devices of groove.
Step one：According to heating cable wellhead heat resisting and pressure resisting characteristic, upper seal 22 and lower seal 32 from 120 DEG C of heatproof with
On encapsulant, the fluid sealant of the injecting sealant of injecting glue from more than 800 DEG C of heatproof.
Step 2：During entering under cable, cable seal is ensured by upper seal 22 and lower seal 32, tighten pressure
Lid 20 and lower cover 30, under enter cable.
Step 3：After the completion of entering under cable, the mobile briquetting 72 of the movement of operation handle 73 makes the first folder near fixed briquetting 71
Tight portion is matched for clamping tightly cable with the second clamping section, installs colloid-injecting gun, opens the rubber injecting valve 60 on 10 tops of sealing supervisor, injection sealing
Injecting colloid, injection pressure is qualified more than 80Mpa after filling glue, closes one-level rubber injecting valve.
Step 4：The rubber injecting valve 60 at the middle part of sealing supervisor 10 is opened, injecting sealant is injected, injection pressure is more than 80Mpa after filling glue
It is qualified, the rubber injecting valve 60 in the middle part of closing.
Step 5：The rubber injecting valve 60 of 10 bottoms of sealing supervisor is opened, injecting sealant is injected, injection pressure is more than 80Mpa after filling glue
It is qualified, the rubber injecting valve 60 of closing bottom.
Step 6：Cable is powered and uses after the completion of injecting glue, observes sealing situation, and such as spinosity leaks, repeat step three, step 4,
Step 5 continues injecting glue and is not pierced to well head and do not leak, after the completion of close rubber injecting valve.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for those skilled in the art
For, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. the well mouth sealing device of cable is heated in a kind of underground, it is characterised in that including：
Sealing supervisor (10), for wearing cable and being fixed at well head；
Upper press cover (20), is arranged in the upper end of sealing supervisor (10), is offered on the upper press cover (20)
Can be by the opening of the cable；
Lower cover (30), is arranged in the lower end of sealing supervisor (10), is offered on the lower cover (30)
Can be by the opening of the cable；
Upper squeeze sealing member (40), the upper squeeze sealing member (40) is arranged in sealing supervisor (10) and is located at
The downside of the upper press cover (20) simultaneously coordinates with the upper press cover (20), is opened up in the upper squeeze sealing member (40)
Having can be by the upper extrusion mouth of the cable；
Lower squeeze sealing member (50), the lower squeeze sealing member (50) is arranged in sealing supervisor (10) and is located at
The upside of the lower cover (30) simultaneously coordinates with the lower cover (30), is opened up in the lower squeeze sealing member (50)
Having can be by the lower extrusion mouth of the cable；
Rubber injecting valve (60), is arranged on sealing supervisor (10) and is located at the upper squeeze sealing member (40) and described
At position between lower squeeze sealing member (50), the upper squeeze sealing member (40) and the lower squeeze sealing member (50)
Deform after the colloid extruding injected by the rubber injecting valve (60) and clamp the cable.
2. well mouth sealing device according to claim 1, it is characterised in that the upper squeeze sealing member (40) is including upper close
Seal ring (41) and upper deformable member (42), offered in the upper deformable member (42) can by the upper through hole of the cable,
The upper deformable member (42) is arranged on the middle part of the upper sealing ring (41), and the upper sealing ring (41) is being subject to
The upper deformable member (42) is extruded after the pressure of the colloid of injection makes the upper through hole reduce the clamping cable.
3. well mouth sealing device according to claim 2, it is characterised in that the upper deformable member (42) is truncated cone-shaped, institute
State and the upper through hole is offered in the middle part of deformable member (42), offered on the side wall of the upper deformable member (42) logical
Groove.
4. well mouth sealing device according to claim 3, it is characterised in that opened up on the side wall of the upper deformable member (42)
There is step surface, the shape of the step surface is adapted with the shape at the middle part of the upper sealing ring (41).
5. well mouth sealing device according to claim 1, it is characterised in that the lower squeeze sealing member (50) with it is described on
The structure of squeeze sealing member (40) is identical.
6. well mouth sealing device according to claim 1, it is characterised in that the upper press cover (20) and the upper extruding are close
Sealing dividing plate (21), the lower cover (30) and the lower squeeze sealing member (50) are provided between sealing (40)
Between be provided with it is lower sealing dividing plate (31), the upper squeeze sealing member (40) with it is described it is upper sealing dividing plate (21) abut,
The lower squeeze sealing member (50) abuts with lower sealing dividing plate (31).
7. well mouth sealing device according to claim 6, it is characterised in that upper sealing dividing plate (21) and the upper pressure
Upper seal (22) is provided between lid (20), is set between lower sealing dividing plate (31) and the lower cover (30)
It is equipped with lower seal (32).
8. well mouth sealing device according to claim 1, it is characterised in that the underground heating CA cable assembly also includes sealing
Briquetting (70), the sealed briquette (70) is fixedly installed on the upper squeeze sealing member (40) and the lower crush seal
In sealing supervisor (10) between part (50), the sealed briquette (70) is for clamping the cable and by institute
The space stated in sealing supervisor (10) is divided into two injecting glue spaces, and each injecting glue space is correspondingly provided with the injecting glue
Valve (60).
9. well mouth sealing device according to claim 8, it is characterised in that the sealed briquette (70) is multiple, it is multiple
The sealed briquette (70) compartment of terrain between squeeze sealing member (40) and the lower squeeze sealing member (50) on described
Set, it is empty that the space that the sealing is responsible in (10) is divided into multiple injecting glues by multiple sealed briquettes (70)
Between.
10. well mouth sealing device according to claim 8, it is characterised in that the sealed briquette (70) includes fixed briquetting
(71), mobile briquetting (72) and operation handle (73), the first clamping section is provided with the fixed briquetting (71),
The second clamping section being adapted with first clamping section, first clamping section are provided with the mobile briquetting (72)
The cable is matched for clamping tightly with second clamping section, the operation handle (73) is connected with the mobile briquetting (72),
The operation handle (73) is for moving the mobile briquetting (72) near the fixed briquetting (71), the sealing pressure
Block (70) also include block (74), the block (74) be arranged on it is described sealing supervisor (10) inwall on it is described
There is the position in gap between mobile briquetting (72).
11. well mouth sealing devices according to claim 1, it is characterised in that the well mouth sealing device also includes pressure cap (80),
The pressure cap (80) is arranged on the upper end of sealing supervisor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032350.7A CN106930717B (en) | 2015-12-31 | 2015-12-31 | The well mouth sealing device of underground heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032350.7A CN106930717B (en) | 2015-12-31 | 2015-12-31 | The well mouth sealing device of underground heating cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930717A true CN106930717A (en) | 2017-07-07 |
| CN106930717B CN106930717B (en) | 2019-09-03 |
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ID=59444713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511032350.7A Active CN106930717B (en) | 2015-12-31 | 2015-12-31 | The well mouth sealing device of underground heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930717B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108104762A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of wellhead cable sealing device and encapsulating method |
| CN115306342A (en) * | 2022-10-11 | 2022-11-08 | 克拉玛依红山油田有限责任公司 | Glue injection guiding sealing blowout preventer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104762A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of wellhead cable sealing device and encapsulating method |
| CN108104762B (en) * | 2017-12-18 | 2024-03-01 | 中国石油天然气股份有限公司 | Wellhead cable sealing device and sealing method |
| CN115306342A (en) * | 2022-10-11 | 2022-11-08 | 克拉玛依红山油田有限责任公司 | Glue injection guiding sealing blowout preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106930717B (en) | 2019-09-03 |
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