CN106930717B - Wellhead sealing device for downhole heating cable - Google Patents
Wellhead sealing device for downhole heating cable Download PDFInfo
- Publication number
- CN106930717B CN106930717B CN201511032350.7A CN201511032350A CN106930717B CN 106930717 B CN106930717 B CN 106930717B CN 201511032350 A CN201511032350 A CN 201511032350A CN 106930717 B CN106930717 B CN 106930717B
- Authority
- CN
- China
- Prior art keywords
- sealing
- cable
- squeeze
- supervisor
- sealing member
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 230
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000004484 Briquette Substances 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 21
- 239000000084 colloidal system Substances 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 abstract description 11
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 11
- 239000010779 crude oil Substances 0.000 description 10
- 239000000565 sealant Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000012797 qualification Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 244000147058 Derris elliptica Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cable Accessories (AREA)
Abstract
The invention provides a wellhead sealing device of an underground heating cable, wherein a sealing main pipe is fixed at a wellhead and used for penetrating the cable, an upper gland is arranged in the upper end of the sealing main pipe, a lower gland is arranged in the lower end of the sealing main pipe, and openings through which the cable can pass are arranged on the upper gland and the lower gland. The wellhead sealing device further comprises an upper extrusion sealing element and a lower extrusion sealing element, the upper extrusion sealing element is arranged on the lower side of the upper gland in the sealing main pipe and is matched with the upper gland, and the lower extrusion sealing element is arranged on the upper side of the lower gland in the sealing main pipe and is matched with the lower gland. The glue injection valve is arranged on the sealing main pipe and located at a position between the upper extrusion sealing element and the lower extrusion sealing element. The technical scheme of the invention can effectively solve the problem that the sealing performance of the underground heating cable at the wellhead in the prior art is poor.
Description
Technical field
The present invention relates to production of hydrocarbons technical fields, fill in particular to a kind of wellhead sealing of underground heating cable
It sets.
Background technique
When oil/gas well produces, pass through wellbore lift into surface process in well fluids downhole, it can or analysis wax high because of Crude viscosity
And lead to the unsmooth or oil pipe blocking of pit shaft Produced Liquid circulation, cause the oil/gas well underproduction even to stop production.It can be used after problem appearance
Downhole electric heating technique solves the problems, such as this, i.e., in flow string piece heating cable of tripping in, passes through ground intermediate frequency power supply
Control cabinet control, heats well liquid within the cartridge, achievees the purpose that glutinous, de-plugging drops in heating.
During being heated using heating cable to the crude oil in oil pipe, crude oil can restore circulation, oil pressure
Also it can increase, crude oil will be gushed or be sprayed outside the hole location that cable is heated in tripping in.Therefore, it is necessary in the hole location of tripping in cable
Sealing device is installed, crude oil leakage is prevented.And existing being limited in implementation process for cable seal technique of well head heating seals
Intensity it is not high and easy to seal and fail, be easy to cause crude oil leakage at well head, pollution environment.
Summary of the invention
The main purpose of the present invention is to provide a kind of well mouth sealing devices of underground heating cable, to solve the prior art
The problem of middle underground heating cable leakproofness difference at well head.
To achieve the goals above, the present invention provides a kind of well mouth sealing devices of underground heating cable, comprising: sealing
Supervisor, for wearing cable and being fixed at well head；Upper press cover is arranged in the upper end of sealing supervisor, offers on upper press cover
The opening of cable can be passed through；Lower cover is arranged in the lower end of sealing supervisor, and offering on lower cover can opening by cable
Mouthful；Upper squeeze sealing member, upper squeeze sealing member are arranged in sealing supervisor positioned at the downside of upper press cover and cooperate with upper press cover, on
Offering in squeeze sealing member can be by the upper extrusion mouth of cable；Lower squeeze sealing member, lower squeeze sealing member setting are led in sealing
Cooperate positioned at the upside of lower cover in pipe and with lower cover, offering in lower squeeze sealing member can be by the lower extrusion mouth of cable；
Rubber injecting valve is arranged at the position on sealing supervisor between upper squeeze sealing member and lower squeeze sealing member, upper extruding sealing
Part and lower squeeze sealing member deform clamping cables after the colloid injected by rubber injecting valve squeezes.
Further, upper squeeze sealing member includes upper sealing ring and upper deformable member, and electricity can be passed through by offering in upper deformable member
The middle part of upper sealing ring is arranged in the upper through-hole of cable, upper deformable member, and upper sealing ring is squeezing after the pressure by the colloid injected
Deformable member makes through-hole reduce clamping cables in pressure.
Further, upper deformable member is truncated cone-shaped, offers through-hole in the middle part of upper deformable member, on the side wall of upper deformable member
Offer through slot.
Further, step surface is offered on the side wall of upper deformable member, the middle part of the shape and upper sealing ring of step surface
Shape is adapted.
Further, lower squeeze sealing member is identical as the structure of upper squeeze sealing member.
Further, sealing partition, lower cover and lower extruding sealing are provided between upper press cover and upper squeeze sealing member
Lower sealing partition is provided between part, upper squeeze sealing member is abutted with upper sealing partition, lower squeeze sealing member and lower sealing partition
It abuts.
Further, upper seal is provided between upper sealing partition and upper press cover, between lower sealing partition and lower cover
It is provided with lower seal.
Further, heating CA cable assembly in underground further includes sealed briquette, and sealed briquette is fixed at extruding sealing
In sealing supervisor between part and lower squeeze sealing member, sealed briquette separates for clamping cables and by the space in sealing supervisor
For two injecting glue spaces, each injecting glue space is correspondingly provided with rubber injecting valve.
Further, sealed briquette is multiple, and multiple sealed briquettes are between upper squeeze sealing member and lower squeeze sealing member
It is positioned apart from, the space in sealing 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 is provided on fixed briquetting
One clamping section, moves and is provided with the second clamping section compatible with the first clamping section on briquetting, and the first clamping section is clamped with second
Portion is matched for clamping tightly cable, and operation handle is connect with mobile briquetting, and operation handle is close for the close fixed briquetting of mobile briquetting
Envelope briquetting further includes block, and the position for having gap on the inner wall of sealing supervisor between mobile briquetting is arranged in block.
Further, well mouth sealing device further includes pressure cap, and the upper end of sealing supervisor is arranged in pressure cap.
It applies the technical scheme of the present invention, during use, colloid seals squeeze sealing member and lower extruding
Part can closely step up cable, and then effectively seal against the gap at sealing supervisor's upper and lower side between cable.The colloid of injection
The gap between sealing supervisor's other parts and cable can also be effectively filled, sealing effect is further strengthened.Meanwhile injection
Colloid can also be Nian Jie with sealing supervisor, the compressive property of enhancing sealing main pipe's sealing structure, so that well mouth sealing device
Huge pressure caused by crude oil after heating can be withstood.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations 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 according to the present invention
Figure；
Fig. 2 shows the first structural schematic diagrams of the upper squeeze sealing member of the well mouth sealing device of Fig. 1；
Fig. 3 shows second of structural schematic diagram 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 according to the present invention
Figure；
Fig. 5 shows the structural schematic diagram 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 according to the present invention
Figure.
Wherein, the above drawings include the following reference numerals:
10, sealing supervisor；20, upper press cover；21, upper sealing partition；22, upper seal；30, lower cover；31, it is lower sealing every
Plate；32, lower seal；40, upper squeeze sealing member；50, lower squeeze sealing member；60, rubber injecting valve；41, upper sealing ring；42, upper change
Shape part；70, sealed briquette；71, fixed briquetting；72, mobile briquetting；73, operation handle；74, block；80, pressure cap.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
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
At well head and for wearing cable, it is provided with upper press cover 20 in the upper end of sealing supervisor 10, in the lower end of sealing supervisor 10
It is inside provided with lower cover 30, all offering on upper press cover 20 and lower cover 30 can be by the opening of cable.Well mouth sealing device is also
Including upper squeeze sealing member 40 and lower squeeze sealing member 50, the upper setting of squeeze sealing member 40 is located at upper press cover in sealing supervisor 10
20 downside simultaneously cooperates with upper press cover 20, and lower squeeze sealing member 50, which is arranged in sealing supervisor 10, is located at the upside of lower cover 30 simultaneously
Cooperate with lower cover 30.The setting of rubber injecting valve 60 be located on sealing supervisor 10 upper squeeze sealing member 40 and lower squeeze sealing member 50 it
Between position at, offering in upper squeeze sealing member 40 and lower squeeze sealing member 50 can be by the lower extrusion mouth of cable, upper extruding
Sealing element 40 and lower squeeze sealing member 50 deform clamping cables after the colloid injected by rubber injecting valve 60 squeezes.In the mistake used
Cheng Zhong, colloid allows squeeze sealing member 40 and lower squeeze sealing member 50 closely to step up cable, and then effectively seals against
Gap at sealing 10 upper and lower sides of supervisor between cable.The colloid of injection can also effectively fill sealing 10 other parts of supervisor
Gap between cable, further strengthens sealing effect.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, after allowing well mouth sealing device to withstand heating caused by crude oil
Huge 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 solution of embodiment one, as shown in Fig. 2, upper squeeze sealing member 40 includes upper sealing ring 41
With upper deformable member 42, offers and upper sealing ring can be set by the upper through-hole of cable, upper deformable member 42 in upper deformable member 42
Middle part.Upper sealing ring 41 makes upper through-hole reduce clamping cables squeezing upper deformable member 42 after the pressure by the colloid injected.
Optionally, in the technical solution of embodiment one, upper deformable member 42 is truncated cone-shaped, and the middle part of upper deformable member 42 offers logical
Hole offers through slot on the side wall of upper deformable member 42.After the compression of upper sealing ring 41, upper sealing ring 41 can be along truncated cone-shaped
Top is mobile towards bottom, in the process of moving upper sealing ring 41 can deformable member 42 on banding, cause deformable member 42 along
Through slot reduces, and then steps up cable completely.Optionally, step surface, the shape of step surface are offered on the side wall of upper deformable member 42
It is adapted with the shape at the middle part of upper sealing ring 41.When the step surface of upper deformable member 42 resists the middle part of upper sealing ring 41, on
Sealing ring 41 would not continue deformable member 42 on banding, and it is disconnected to avoid upper 42 Le of deformable member when pressure is excessive in sealing supervisor 10
Cable.
Optionally, as shown in figure 3, two through slots can be opened up on the upper deformable member 42 of truncated cone-shaped, two upper through slots pair
It is provided on the side wall of deformable member 42 with claiming.In this way, upper deformable member 42 has just been divided into two panels, after 41 banding of upper sealing ring
Step up cable jointly.
As shown in Figure 1, in the technical solution of embodiment one, the structure of lower squeeze sealing member 50 and upper squeeze sealing member 40
It is identical.Certainly, the working principle of lower squeeze sealing member 50 is also identical as upper squeeze sealing member 40.
As shown in Figure 1, it is optional, in the technical solution of embodiment one, between upper press cover 20 and upper squeeze sealing member 40
It is provided with sealing partition 21, lower sealing partition 31, upper extruding sealing are provided between lower cover 30 and lower squeeze sealing member 50
Part 40 is abutted with upper sealing partition 21, and lower squeeze sealing member 50 is abutted with lower sealing partition 31.Upper sealing partition 21 and lower sealing
31 one side of partition can assist squeeze sealing member 40 and lower squeeze sealing member 50 to work, and on the other hand can also to infuse
Sealing effect is more preferable after glue, increases the pressure that well mouth sealing device is able to take.
Optionally, as shown in Figure 1, being provided with upper seal 22, lower sealing between upper sealing partition 21 and upper press cover 20
Lower seal 32 is provided between partition 31 and lower cover 30.Upper seal 22 and lower seal 32 further enhance sealing master
Sealing performance at 10 upper and lower side of pipe.Optionally, upper seal 22 and lower seal 32 are sealed packing.
As shown in Figure 1, well mouth sealing device further includes pressure cap 80, the upper end of sealing supervisor 10 is arranged in pressure cap 80.Pressure cap
80 setting can provide support force to the internal structure of sealing supervisor 10, and then enhance what well mouth sealing device was able to take
Pressure.
Fig. 4 shows the technical solution of the embodiment of the present invention two, which compares with the technical solution of embodiment one
Compared with for, difference is further including sealed briquette 70 with, underground heating CA cable assembly, sealed briquette 70 be fixed at squeeze it is close
In sealing supervisor 10 between sealing 40 and lower squeeze sealing member 50, sealed briquette 70 is responsible for 10 for clamping cables and by sealing
Interior space is divided into two injecting glue spaces, and each injecting glue space is correspondingly provided with rubber injecting valve 60.It will be in sealing supervisor 10
After space is divided into two injecting glue spaces, each injecting glue space is equivalent to an independent sealing structure, enhances sealing effect
Fruit.Meanwhile sealed briquette 70 can also provide enough support forces to the colloid in injecting glue space, and then reinforce wellhead sealing dress
Set pressure-resistant performance.
Optionally, as shown in Figure 4 and Figure 5, sealed briquette 70 includes fixed briquetting 71, mobile briquetting 72 and operation handle
73.It is provided with the first clamping section on fixed briquetting 71, the second folder compatible with the first clamping section is provided on mobile briquetting 72
Tight portion, the first clamping section and the second clamping section are matched for clamping tightly cable.Operation handle 73 is connect with mobile briquetting 72, operation handle 73
For mobile briquetting 72 close to fixed briquetting 71, sealed briquette 70 further includes block 74, and the setting of block 74 is responsible in sealing
There is the position in gap on 10 inner wall between mobile briquetting 72.In injecting glue space when injecting glue, fixed briquetting 71 and movement
Briquetting 72 plays good barrier action, and block 74 has then stopped gap, avoids two injecting glue space connection.
Fig. 6 shows the technical solution of the embodiment of the present invention three, which compares with the technical solution of embodiment two
Compared with for, difference is being two with, sealed briquette 70, and two sealed briquettes 70 are in upper squeeze sealing member 40 and lower squeeze sealing member
It is positioned apart between 50, the space in sealing supervisor 10 is divided into three injecting glue spaces by two sealed briquettes 70.And implementation
The technical solution of example two is compared, and the technical solution sealing effect of embodiment three is more excellent, and pressure-resistant performance is also be more good.
Illustrate the usage mode of above-described embodiment below in conjunction with specific service condition:
1, with wellhead oil tree rated pressure 25MPa, the 29 DEG C of self-sprays of lower crude oil freezing point of output medium association Gas content
For producing well, the well mouth sealing device of single through slot is only provided with using the upper deformable member 42 of embodiment one.
Step 1: according to heating cable wellhead heat resisting and pressure resisting characteristic, upper seal 22 and lower seal 32 select heatproof 120
DEG C or more sealing material, the injecting sealant of injecting glue selects 800 DEG C of heatproof or more of sealant.
Step 2: during cable tripping in, cable seal is guaranteed by upper seal 22 and lower seal 32, is tightened
Gland 20 and lower cover 30, tripping in cable.
Step 3: after the completion of cable tripping in, colloid-injecting gun is installed, opens rubber injecting valve 60, injects injecting sealant colloid, injecting glue
It is qualification that pressure, which is greater than 30Mpa, and cable, which is powered, after the completion of injecting glue uses, and rubber injecting valve is closed in observation sealing situation, stingless leakage, if any
Thorn leakage, continuation injecting glue is not pierced to well head not to be leaked, closes rubber injecting valve after the completion.
2, by taking 29 DEG C of wellhead oil tree rated pressure 35MPa, output crude oil freezing point oil flow production wells as an example, using implementation
The upper deformable member 42 of example two is only provided with the well mouth sealing device of single through slot.
Step 1: according to heating cable wellhead heat resisting and pressure resisting characteristic, upper seal 22 and lower seal 32 select heatproof 120
DEG C or more sealing material, the injecting sealant of injecting glue selects 800 DEG C of heatproof or more of sealant.
Step 2: during cable tripping in, cable seal is guaranteed by upper seal 22 and lower seal 32, is tightened
Gland 20 and lower cover 30, tripping in cable.
Step 3: after the completion of cable tripping in, the mobile briquetting 72 of operation handle 73 makes first close to fixed briquetting 71
Clamping section and the second clamping section are matched for clamping tightly cable, install colloid-injecting gun, open the rubber injecting valve 60 on 10 tops of sealing supervisor, inject close
Injecting colloid is sealed, injection pressure is greater than 40Mpa for qualification after filling glue, closes the rubber injecting valve 60 on top.
Step 4: the rubber injecting valve 60 of 10 lower parts of sealing supervisor is opened, injecting sealant colloid is injected, fills injection pressure after glue
It is qualification greater than 40Mpa, closes the rubber injecting valve 60 of lower part.
Step 5: cable, which is powered, after the completion of injecting glue uses, and observation sealing situation is repeated if spinosity leaks Step 3: step 4
Continuation injecting glue is not pierced to well head not to be leaked, closes rubber injecting valve after the completion.
3, by taking 35 DEG C of wellhead oil tree rated pressure 75MPa, output crude oil freezing point oil flow production wells as an example, using implementation
The upper deformable member 42 of example three opens the well mouth sealing device there are two through slot.
Step 1: according to heating cable wellhead heat resisting and pressure resisting characteristic, upper seal 22 and lower seal 32 select heatproof 120
DEG C or more sealing material, the injecting sealant of injecting glue selects 800 DEG C of heatproof or more of sealant.
Step 2: during cable tripping in, cable seal is guaranteed by upper seal 22 and lower seal 32, is tightened
Gland 20 and lower cover 30, tripping in cable.
Step 3: after the completion of cable tripping in, the mobile briquetting 72 of operation handle 73 makes first close to fixed briquetting 71
Clamping section and the second clamping section are matched for clamping tightly cable, install colloid-injecting gun, open the rubber injecting valve 60 on 10 tops of sealing supervisor, inject close
Injecting colloid is sealed, injection pressure is greater than 80Mpa for qualification after filling glue, closes level-one rubber injecting valve.
Step 4: the rubber injecting valve 60 at 10 middle part of sealing supervisor is opened, injects injecting sealant, injection pressure is greater than after filling glue
80Mpa is qualification, closes the rubber injecting valve 60 at middle part.
Step 5: the rubber injecting valve 60 of 10 lower parts of sealing supervisor is opened, injects injecting sealant, injection pressure is greater than after filling glue
80Mpa is qualification, closes the rubber injecting valve 60 of lower part.
Step 6: cable, which is powered, after the completion of injecting glue uses, and observation sealing situation is repeated if spinosity leaks Step 3: step
Four, step 5 continuation injecting glue is not pierced to well head does not leak, closes rubber injecting valve after the completion.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of well mouth sealing device of underground heating cable characterized by comprising
Sealing supervisor (10), for wearing cable and being fixed at well head；
Upper press cover (20) is arranged in the upper end of the sealing supervisor (10), and institute can be passed through by offering on the upper press cover (20)
State the opening of cable；
Lower cover (30) is arranged in the lower end of the sealing supervisor (10), and institute can be passed through by offering on the lower cover (30)
State the opening of cable；
Upper squeeze sealing member (40), upper squeeze sealing member (40) setting are located at the upper pressure in sealing supervisor (10)
It covers the downside of (20) and cooperates with the upper press cover (20), offering in the upper squeeze sealing member (40) can be by the cable
Upper extrusion mouth；
Lower squeeze sealing member (50), lower squeeze sealing member (50) setting are located at the pushing in sealing supervisor (10)
It covers the upside of (30) and cooperates with the lower cover (30), offering in the lower squeeze sealing member (50) can be by the cable
Lower extrusion mouth；
Rubber injecting valve (60), setting is located at the upper squeeze sealing member (40) on sealing supervisor (10) and the lower extruding is close
At position between sealing (50), the upper squeeze sealing member (40) and the lower squeeze sealing member (50) are by the injecting glue
Deformation clamps the cable after the colloid of valve (60) injection squeezes.
2. well mouth sealing device according to claim 1, which is characterized in that the upper squeeze sealing member (40) includes upper close
Seal ring (41) and upper deformable member (42), offer in the upper deformable member (42) can by the upper through-hole of the cable, it is described on
Deformable member (42) is arranged at the middle part of the upper sealing ring (41), and the upper sealing ring (41) is in the pressure by the colloid injected
After squeeze the upper deformable member (42) and reduce the upper through-hole and clamp the cable.
3. well mouth sealing device according to claim 2, which is characterized in that the upper deformable member (42) is truncated cone-shaped, institute
It states and offers the upper through-hole in the middle part of deformable member (42), offer through slot on the side wall of the upper deformable member (42).
4. well mouth sealing device according to claim 3, which is characterized 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, which is characterized in that the lower squeeze sealing member (50) and it is described on
The structure of squeeze sealing member (40) is identical.
6. well mouth sealing device according to claim 1, which is characterized in that the upper press cover (20) and the upper extruding are close
It is provided with sealing partition (21) between sealing (40), is arranged between the lower cover (30) and the lower squeeze sealing member (50)
There is lower sealing partition (31), the upper squeeze sealing member (40) abuts with the upper sealing partition (21), the lower extruding sealing
Part (50) is abutted with the lower sealing partition (31).
7. well mouth sealing device according to claim 6, which is characterized in that the upper sealing partition (21) and the upper pressure
It is provided with upper seal (22), is provided with down between the lower sealing partition (31) and the lower cover (30) close between lid (20)
Sealing (32).
8. well mouth sealing device according to claim 1, which is characterized in that the underground heating CA cable assembly further includes close
It seals briquetting (70), the sealed briquette (70) is fixed at the upper squeeze sealing member (40) and the lower squeeze sealing member
(50) in the sealing supervisor (10) between, the sealed briquette (70) is for clamping the cable and being responsible for the sealing
(10) space in is divided into two injecting glue spaces, and each injecting glue space is correspondingly provided with the rubber injecting valve (60).
9. well mouth sealing device according to claim 8, which is characterized in that the sealed briquette (70) be it is multiple, it is multiple
The sealed briquette (70) is positioned apart between the upper squeeze sealing member (40) and the lower squeeze sealing member (50), more
Space in the sealing supervisor (10) is divided into multiple injecting glue spaces by a sealed briquette (70).
10. well mouth sealing device according to claim 8, which is characterized in that the sealed briquette (70) includes fixed pressure
Block (71) moves briquetting (72) and operation handle (73), is provided with the first clamping section, the shifting on the fixed briquetting (71)
The second clamping section compatible with first clamping section, first clamping section and described second are provided on dynamic pressure block (72)
Clamping section is matched for clamping tightly the cable, and the operation handle (73) connect with the mobile briquetting (72), the operation handle
(73) for moving the mobile briquetting (72) close to the fixed briquetting (71), the sealed briquette (70) further includes block
(74), block (74) setting has gap between the mobile briquetting (72) on the inner wall of the sealing supervisor (10)
Position.
11. well mouth sealing device according to claim 1, which is characterized in that the well mouth sealing device further includes pressure cap
(80), pressure cap (80) setting is in the upper end of the sealing supervisor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032350.7A CN106930717B (en) | 2015-12-31 | 2015-12-31 | Wellhead sealing device for downhole heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032350.7A CN106930717B (en) | 2015-12-31 | 2015-12-31 | Wellhead sealing device for downhole heating cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930717A CN106930717A (en) | 2017-07-07 |
| CN106930717B true CN106930717B (en) | 2019-09-03 |
Family
ID=59444713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511032350.7A Active CN106930717B (en) | 2015-12-31 | 2015-12-31 | Wellhead sealing device for downhole heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930717B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115306342B (en) * | 2022-10-11 | 2023-02-03 | 克拉玛依红山油田有限责任公司 | Glue injection guiding sealing blowout preventer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10042952C2 (en) * | 2000-08-31 | 2002-07-18 | Gabo Systemtech Gmbh | Divisible single cable seal for cables |
| CN203716912U (en) * | 2014-03-18 | 2014-07-16 | 东营市一旭石油装备有限公司 | Electric-heating hollow polish rod blowout preventer |
| CN204344049U (en) * | 2014-09-11 | 2015-05-20 | 中国石油化工股份有限公司 | A kind of submerged electric oil pump well wellhead cable sealing device |
| CN204668904U (en) * | 2015-06-14 | 2015-09-23 | 山东临大锐思智造技术有限公司 | A kind of cable sealed joint |
| CN205477495U (en) * | 2016-02-24 | 2016-08-17 | 中国石油天然气股份有限公司 | Well head sealing device |
-
2015
- 2015-12-31 CN CN201511032350.7A patent/CN106930717B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106930717A (en) | 2017-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106930717B (en) | Wellhead sealing device for downhole heating cable | |
| RU2643511C2 (en) | Mobile sealing system of movable action | |
| CN109283063A (en) | A kind of packer Withstand test device | |
| CN105973724B (en) | Rock discontinuum coupled shear-flow test box | |
| CN209587179U (en) | A kind of mud knife gate valve of rubber seal | |
| CN102758620B (en) | Well control and wellhead equipment pressure testing device | |
| CN201228534Y (en) | High-strength sealing and steam injecting packer | |
| CN209511409U (en) | A kind of pressure type pipeline speed leakage repair device | |
| CN107339079B (en) | A kind of CO2Plugging device and its method for blocking | |
| CN204493988U (en) | A kind of high-pressure leakage pipeline flexible prefastening compensates blocking clamper | |
| CN204082084U (en) | High pressure tests sealed packer | |
| CN209198475U (en) | A kind of test agent production automatic biochemical analytical equipment | |
| CN204420158U (en) | A kind of gate sealing configuration | |
| CN207756646U (en) | Cam Simmer ring apparatus for shaping | |
| CN207728337U (en) | Hydraulic oil pipe self-packer | |
| CN202734981U (en) | Thermocouple structure penetratingly installed on pump shell | |
| CN204804704U (en) | Heat insulation pipe and gas injection pipe column thereof | |
| CN206205849U (en) | A kind of packing for novel oil extractor device | |
| CN204371188U (en) | polish rod sealing device | |
| CN204790101U (en) | Optical cable connector box | |
| CN116181281B (en) | Combined multipurpose wellhead gate valve | |
| CN203880130U (en) | Fixed ball valve for top assembling | |
| CN214836236U (en) | Polish rod sealer | |
| CN203729939U (en) | Packing box | |
| CN213899900U (en) | Hydraulic cylinder type stop valve device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |