CN107013177A - A kind of well mouth hanger for heating umbilical - Google Patents
A kind of well mouth hanger for heating umbilical Download PDFInfo
- Publication number
- CN107013177A CN107013177A CN201710324736.8A CN201710324736A CN107013177A CN 107013177 A CN107013177 A CN 107013177A CN 201710324736 A CN201710324736 A CN 201710324736A CN 107013177 A CN107013177 A CN 107013177A
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- Prior art keywords
- well mouth
- mandrel
- component
- flange
- cavity
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 28
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 238000012856 packing Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- 241000233855 Orchidaceae Species 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 12
- 239000010779 crude oil Substances 0.000 description 9
- 239000001993 wax Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 241000254175 Anthonomus grandis Species 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000007704 transition Effects 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
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0407—Casing heads; Suspending casings or tubings in well heads with a suspended electrical cable
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)
- Gasket Seals (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention relates to a kind of well mouth hanger for heating umbilical, well mouth hanger includes top seal assembly, suspension assembly, stem seal component, sealed bottom component and bypass component, top seal assembly, suspension assembly, stem seal component and sealed bottom component surround the cavity of up/down perforation by respective housing, and heating umbilical is hung in cavity by suspension assembly；Bypass component is laterally installed on suspension assembly, and cable pole stretches into the inside of cavity through bypass component, and cable pole is connected by suspension assembly with heating the cable core of umbilical.By the bypass component of the well mouth hanger of the present invention, traditional two logical well mouth hangers are become and turn to threeway well mouth hanger, and by cable pole through bypass component, so that the problem of solving to heating umbilical electrified regulation.
Description
Technical field
The present invention relates to a kind of well mouth hanger for heating umbilical, it is adaptable to the technical field of petroleum works.
Background technology
Oil well paraffinication is the problem of existing for a long time in oilfield development process, when crude oil is extracted into ground from underground, due to molten
Solve the effusion and expansion of gas and crude oil temperature is gradually reduced, wax is just analysed from crude oil by the size order crystallization of molecular weight
Go out, and be then deposited on tube inner wall, cause pit shaft to narrow, oil well output reduction can also block oil pipe and cause oil when serious
Well stops production.Crude oil reduces to the reduction of the solubility with temperature of wax, is less than original to the solubility of wax when temperature is reduced to crude oil
During a certain value of the paraffin content of oil, the wax dissolved in crude oil just starts to separate out.Ultrasonic technology used in current oil extraction in oil field
The main acoustic energy using ultrasonic wave smashes the macromolecular chain of crude oil and paraffin, is allowed to be changed into low molecule chain, improves mobility, make
Its electric energy part utilized switchs to acoustic energy and another part switchs to heat energy, and switchs to the part of heat energy then wasting in vain.
Ultrasonic wave electrothermal paraffin removal device is the acoustic energy that make use of electric energy to be converted into, and the heat energy discharged using electric energy in transmitting procedure,
The energy is comprehensively utilized.Our previous application 201710122007.4 proposes a kind of Frequency Induction Heating umbilical
And preparation method thereof, wherein coiled tubing is become into heat carrier formation heating umbilical using electrical induction principle, heating is flowed through
The natural gas or crude oil of oil pipe and umbilical annular space, realize and eliminate the effect such as wax deposition.
Boll-weevil hanger is a kind of device for supporting tubing string and sealing annular space between oil pipe and sleeve pipe.Oil pipe suspension
Device sealing means are that boll-weevil hanger is connected using gravity seat to enter in centrum and seal with oil pipe, are easy to operation, change well head speed
Hurry up, safety, so be the mode that middle-deep well, conventional well are generally used.The effect of hanger has：Hang OIH tubing string, it is close
The annular space of sealed tube and sleeve pipe, for lower female connector tube head and on connect production tree transition etc. be provided.
Chinese patent application 201410629076.0,201520866618.6 and 201420667666.8 individually discloses three
Different coiled tubing hangers are planted, due to not being related to the problem of being heated to the inside umbilical of coiled tubing wherein, because
All it is straight-through up and down inside this hanger.In addition, being sealed between oil pipe and housing using one-way seals, sealing effectiveness
It is not good.
Lack a kind of sealing property in the prior art more preferably and suitable for the well mouth hanger of heating umbilical.
The content of the invention
The present invention is of the prior art above-mentioned not enough there is provided a kind of well mouth hanger for heating umbilical to solve, including
Top seal assembly, suspension assembly, stem seal component, sealed bottom component and bypass component, top seal assembly, suspension group
Part, stem seal component and sealed bottom component surround the cavity of up/down perforation by respective housing, and heating umbilical passes through outstanding
Hanging component is hung in cavity；Bypass component is laterally installed on suspension assembly, and cable pole stretches into cavity through bypass component
Inside is simultaneously connected with the cable core for heating umbilical.
Preferably, the bottom of well mouth hanger sets blank flange, and blank flange is bolted on flange seat,
It is provided between blank flange and flange seat on seal, blank flange and flange seat and is respectively equipped with pressure mouth and internal provided with pressure
Passage.One end of pressure channel is connected with pressure mouth, and the other end is connected with the cavity inside well mouth hanger.
Preferably, metallic packing ring is additionally provided with the lower cavity of mandrel, bottom and the enclosure interior of metallic packing ring connect
Touch sealing；The bottom of metallic packing ring contacts sealing with the inner conical surface of housing；The trapezoidal inclined plane and metal sealing of the lower end of mandrel
The wedge angle inclined-plane of the upper end of ring coordinates, so as to realize two way seal of the metallic packing ring respectively with housing and coiled tubing.
Preferably, mandrel includes being additionally provided with metal in the upper mandrel and lower mandrel of threaded connection, the lower cavity of lower mandrel
Sealing ring, the bottom of metallic packing ring contacts sealing with the inner conical surface of housing；The lower end of lower mandrel is in inverted trapezoidal, metallic packing ring
Upper end be in stage portion pointed shape；The trapezoidal inclined plane of the lower end of lower mandrel and the wedge angle inclined-plane of the upper end of metallic packing ring
Relative it can be slided with merging, the trapezoidal bottom surface of the lower end of lower mandrel and the stage portion of metallic packing ring coordinate, so as to realize gold
Belong to the two way seal of sealing ring respectively with housing and coiled tubing.
Preferably, jackscrew is provided with the top of metallic packing ring, jackscrew stretches into the inside of cavity along the opening on housing, pushed up
Inner end in silk insertion cavity is tapered, and the mandrel of relevant position is provided with pushing inclined-plane so that the tapered end energy of jackscrew
It is enough to be engaged with pushing inclined-plane.
Preferably, mandrel is connected with clamp assemblies, and clamp assemblies include jig arm and be arranged on inside jig arm up and down two
Individual slips；The inwall of upper slipses and lower slipses is provided with card line and forms Bidirectional suspension structure.
Preferably, upper mandrel is connected with clamp assemblies, and upper clamp assemblies include upper clip arm and are arranged in upper clip arm
The upper slipses in portion；Lower mandrel is connected with lower clamp assemblies, and lower clamp assemblies include lower clip arm and are arranged on inside lower clip arm
Lower slipses；The inwall of upper slipses and lower slipses is separated provided with card line and by separator；Formed between upper mandrel and lower mandrel double
To suspended structure.
Preferably, the upper end of mandrel is threadedly coupled with hung drum, and the upper end of hung drum is provided with fishing socket, the inside of hung drum
Provided with protective metal shell；Cable core and protective metal shell are connected with silk pressing；
Insulating sheath is provided between hung drum and protective metal shell, the bottom of insulating sheath is provided with the first insulating sealer, the
The shape of one insulating sealer is constructed such that the space being capable of between the bottom of sealed insulation sheath and hung drum and outstanding
Space between cup and core retainer plate；The bottom of first insulating sealer separates with core retainer plate and is filled with the second insulating sealer.
Preferably, bypass component includes mother law orchid, draw systems, suppresses valve, sub- flange, and mother law orchid is bolted
On the housing of well mouth hanger, sub- flange is bolted on mother law orchid；
Draw systems include drawing body, drawing part, clamping fastener, elastic sealing element, between sub- flange and drawing body
With cavity, provided with the insulated enclosure component being centered around around cable pole in the cavity, drawing part passes through the end of drawing body
Opening is pushed against with insulated enclosure component and contacted；Insulating and sealing member is provided between drawing part and cable pole, in the insulated enclosure
Provided with clamping fastener between part and cable pole；
Valve is suppressed in outside set of sub- flange, the cavity between sub- flange and drawing body is connected with suppressing valve.
Preferably, top seal assembly includes flap type, top flange seat, top blank flange, resistance to pressure valve and pressure gauge,
Top pressure passage is provided with the middle of the blank flange of top, one end of top pressure passage is connected with the inner chamber of flap type, the other end
It is connected respectively with resistance to pressure valve and pressure gauge by three-way pipe.
By the bypass component of the well mouth hanger of the present invention, traditional two logical well mouth hangers are become and turn to threeway well head
Hanger, and by cable pole through bypass component, so that the problem of solving to heating umbilical electrified regulation.Meanwhile, also optimize
The sealing everywhere of well mouth hanger so that well mouth hanger of the invention has good sealing effect, function many, can be applied to
In the oil well operation for heating umbilical.
Brief description of the drawings
Fig. 1 is the front view of the well mouth hanger of the present invention.
Fig. 2 is the top view of the well mouth hanger of the present invention.
Fig. 3 is the side view of the well mouth hanger of the present invention.
Fig. 4 is the upward view of the well mouth hanger of the present invention.
Fig. 5 is the sectional view in well mouth hanger A-A faces along along Fig. 3 of the present invention.
Fig. 6 is the zoomed-in view of the S1 sections shown in Fig. 5.
Fig. 7 is the zoomed-in view of the S2 sections shown in Fig. 5.
Fig. 8 is the zoomed-in view of the S3 sections shown in Fig. 5.
Fig. 9 is the zoomed-in view of the S4 sections shown in Fig. 5.
Figure 10 is the schematic cross-section of the heating umbilical of the present invention.
Figure 11 is the thin portion schematic diagram of the suspension assembly of the present invention.
Figure 12 is the thin portion schematic diagram of the draw systems of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
As shown in Fig. 1-5,8,10, coiled tubing 61, cable core 63 and core retainer plate 62 are included according to the heating umbilical 6 of the present invention,
Core retainer plate 62 is wrapped in the external juxtaposition of cable core 63 in the inside of coiled tubing 61.According to the suspension of the well head of the heating umbilical of the present invention
Device, including top seal assembly 1, suspension assembly 2, stem seal component 3, sealed bottom component 4 and bypass component 5, top is close
Sealing assembly 1, suspension assembly 2, stem seal component 3 and sealed bottom component 4 surround the sky of up/down perforation by respective housing
Chamber, heating umbilical 6 is hung in cavity by suspension assembly 2；Bypass component 5 is mounted laterally on suspension assembly 2, cable pole 50
The inside of cavity is stretched into through bypass component 5, cable pole 50 is connected by suspension assembly 2 with heating the cable core 63 of umbilical 6.Operation
When, powered by cable pole 50 to cable core 63, to reach the purpose of coiled tubing heating.
As shown in fig. 6, which show the structural representation of the sealed bottom component 4 according to the present invention.As illustrated, well
The bottom of mouth hanger sets blank flange 41, and blank flange 41 is bolted on flange seat 45.Blank flange 41
It is provided between flange seat 45 on seal 44, blank flange 41 and flange seat 45 and is respectively equipped with pressure mouth 42.Blank flange 41
Pressure channel 43 is provided with the inside of flange seat 45, one end of pressure channel 43 is connected with pressure mouth 42, and the other end hangs with well head
Cavity connection inside hanging device.During operation, pressure mouth 42 is connected with the christmas tree valve of oil well.
As shown in Figures 6 and 7, which show the structural representation of the stem seal component 3 according to the present invention.Mandrel is located at
In cavity inside well mouth hanger, the lower end of the cavity is in turbination.Stem seal component includes the upper core of threaded connection
Metallic packing ring 30, the bottom of metallic packing ring 30 and shell are additionally provided with axle 10 and lower mandrel 20, the lower cavity of lower mandrel 20
The inner conical surface contact sealing of body.As shown in fig. 6, the lower end of lower mandrel 20 is in inverted trapezoidal, the upper end of metallic packing ring 30 is in carry
The pointed shape of stage portion.Wherein, the trapezoidal inclined plane of the lower end of lower mandrel 20 is matched somebody with somebody with the wedge angle inclined-plane of the upper end of metallic packing ring 30
Merge and relative can slide, the trapezoidal bottom surface of the lower end of lower mandrel 20 coordinates with the stage portion of metallic packing ring 30.Thus, core instantly
When axle 20 is moved downward, the lower end of lower mandrel 20 can be slided along the inclined-plane of metallic packing ring 30, until the bottom surface of lower mandrel 20 is supported
In the stage portion for leaning against metallic packing ring 30.Pass through the reverse cloth of the two seals of lower mandrel and metallic packing ring in the application
Put so that two way seal is realized between housing and umbilical, it is ensured that sealed reliability between mandrel and umbilical.Preferably, exist
Auxiliary sealing device is designed between lower mandrel 20 and housing, between lower mandrel 20 and continuous umbilical, such as O-ring is sealed.This
Sample, is achieved that multiple-sealed between housing and umbilical, enhances sealing effectiveness.
Jackscrew 31, in a preferred embodiment of the invention, jackscrew are provided with the top of the metallic packing ring of two way seal
31 are uniformly provided with the six roots of sensation along the circumference of well mouth hanger.Jackscrew 31 is stretched into cavity along the opening on the housing of well mouth hanger
Portion, is provided with polytetrafluoroethylene (PTFE) circle seal 32 between jackscrew 31 and housing.The inner end of the jackscrew 31 inserted in cavity is tapered,
The lower mandrel 20 of relevant position is provided with thrust piece 33.The upper surface of thrust piece 33 is provided with pushing inclined-plane so that jackscrew 31
Tapered end can be engaged with pushing inclined-plane.During jackscrew 31 is inwardly promoted, by forward along pushing inclined-plane
Lower mandrel 20 is pulled down, and drives metallic packing ring 30 to move down, it is achieved thereby that the sealing between housing and umbilical.
As shown in FIG. 7 and 8, which show the detail structure chart of suspension assembly 2.As illustrated, upper mandrel 10 and lower core
It is threadedly coupled between axle 20, and the formation Bidirectional suspension structure between upper mandrel 10 and lower mandrel 20.Upper mandrel 10 is connected with
Upper clamp assemblies, upper clamp assemblies include upper clip arm 101 and the upper slipses 102 being arranged on inside upper clip arm 101.Lower mandrel 20
Lower clamp assemblies are connected with, lower clamp assemblies include lower clip arm 201 and the lower slipses 202 being arranged on inside lower clip arm 201.On
The inwall of slips 102 and lower slipses 202 is provided with card line to clamp the outer wall of coiled tubing, and upper slipses 102 and lower slipses 202 pass through
Separator 103 is separated, to avoid two slips from mutually touching.Using such a Bidirectional suspension structure, can not only prevent umbilical by
Fallen into deadweight in well, and can also prevent from causing coiled tubing by jack-up greatly because subterranean oil is pressed through, i.e., can prevent umbilical
Way moving.
The upper end of upper mandrel 10 is threadedly coupled with hung drum 40.As shown in figure 8, the upper end of hung drum 40 is provided with fishing socket
26, the inside of hung drum 40 is provided with protective metal shell 21 (for example, copper sheathing), and the perisporium of protective metal shell 21 is provided with hole, and silk pressing 22 is worn
The cable core 63 of umbilical is fixed in the inner chamber of protective metal shell 21 by the hole crossed on the perisporium of protective metal shell 21.Hung drum 40 and metal shield
Insulating sheath 25 is provided between set 21.The bottom of insulating sheath 25 is provided with the first insulating sealer 23.First insulating sealer 23
Shape be constructed such that the space being capable of between the bottom of sealed insulation sheath 25 and hung drum 40 and the and of hung drum 40
Space between core retainer plate 62.The bottom of first insulating sealer 23 separates certain space with core retainer plate 62, is also filled out in this space
Filled with the second insulating sealer 24.So that multiple tracks insulated enclosure is formed between hung drum 40 and protective metal shell 21, to prevent from leading to
Cable pole 50 is crossed to conduct to the current leakage on cable core 63 to hung drum.Fishing socket 26 can be used in by mandrel and its inside
Umbilical lifts producing well.Be smoothed out in order that operation must be lifted, can with the inner walls of the corresponding position of cable pole 50
Cutting knife 27 is set.So, when lifting operation, cable pole 50 is cut off by cutting knife 27, so as to ensure that lifting operation is suitable
Profit is carried out.
As illustrated in FIG 8 and FIG 12, which show the detail of construction of the bypass component 5 according to the present invention.As illustrated, cable
Bar 50 is in contact through bypass component 5 with protective metal shell 21, and electric current is passed into the continuous of umbilical by cable pole 50 so as to realize
On oil pipe, heat the effects such as the natural gas or crude oil that flow through coiled tubing and umbilical annular space, elimination wax deposition.Bypass component 5 includes
Mother law orchid 51, draw systems 52, suppress valve 53, sub- flange 54.Mother law orchid 51 is bolted the housing of well mouth hanger
On, sub- flange 54 is bolted on mother law orchid 51.Draw systems 52 include drawing body 521, drawing part 522, clamping
Fastener 524, elastic sealing element 525.Wherein, have to be provided with cavity, the cavity between sub- flange 54 and drawing body 521 and surround
Insulated enclosure component 541 around cable pole 50.Drawing part 522 passes through the open-ended and insulated enclosure of drawing body 521
Component 541 pushes against contact, and insulating and sealing member 525 also is provided between drawing part 522 and cable pole 50.In the He of drawing part 522
Provided with clamping fastener 524 between insulating and sealing member 525 and cable pole 50 between cable pole 50.Suppress valve 53 and be arranged on sub- method
The outside of orchid 54, and cavity between sub- flange 54 and drawing body 521 connects, for being passed through pressure thereto.Passing through
Suppress valve 53 to inject after pressure so that the pressure increase between sub- flange 54 and drawing body 521, promote drawing body 521
Move out, and drive the clamping clamping cable pole of fastener 524 to move out, so as to realize the purpose for pulling out cable pole.
As shown in figure 9, which show the structural representation of top seal assembly 1.As illustrated, top seal assembly 1
Including flap type 15, top flange seat 14, top blank flange 13, resistance to pressure valve 12 and pressure gauge 11.Wherein, top blank flange
Top pressure passage 131 is provided with the middle of 13, one end of top pressure passage 131 is connected with the inner chamber of flap type 15, the other end leads to
Cross three-way pipe 132 respectively with resistance to pressure valve 12 and pressure gauge 11 to be connected, to control and monitor the pressure change feelings inside housing hollow
Condition.
By the bypass component of the well mouth hanger of the present invention, traditional two logical well mouth hangers are become and turn to threeway well head
Hanger, and make cable pole through bypass component, so that the problem of solving to heating umbilical electrified regulation.Meanwhile, also optimize
The sealing everywhere of well mouth hanger so that well mouth hanger of the invention has good sealing effect, function many, can be applied to
In the oil well operation for heating umbilical.
Although disclosed herein embodiment as above, described content is only to facilitate understanding the present invention and adopting
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (9)
1. a kind of well mouth hanger for heating umbilical, the heating umbilical includes coiled tubing, cable core and core retainer plate, core retainer plate is wrapped in
The external juxtaposition of cable core is in the inside of coiled tubing, it is characterised in that the well mouth hanger includes top seal assembly, suspension
Component, stem seal component, sealed bottom component and bypass component, the top seal assembly, suspension assembly, stem seal group
Part and sealed bottom component surround the cavity of up/down perforation by respective housing, and the heating umbilical passes through the suspension assembly
Hang in cavity；The bypass component is laterally installed on the suspension assembly, and cable pole is stretched into through the bypass component
The inside of cavity is simultaneously connected with the cable core for heating umbilical.
2. well mouth hanger according to claim 1, it is characterised in that the bottom of the well mouth hanger sets blind plate
Flange, blank flange is bolted on flange seat, and seal, institute are provided between the blank flange and the flange seat
State and pressure mouth is respectively equipped with blank flange and the flange seat and internal provided with pressure channel.
3. well mouth hanger according to claim 1 or 2, it is characterised in that the stem seal component includes mandrel, core
Metallic packing ring is additionally provided with the lower cavity of axle, the bottom of metallic packing ring contacts sealing with the inner conical surface of housing；Mandrel
The trapezoidal inclined plane of lower end and the wedge angle inclined-plane of the upper end of metallic packing ring coordinate, thus realize metallic packing ring respectively with housing and
The two way seal of coiled tubing.
4. well mouth hanger according to claim 3, it is characterised in that the mandrel include threaded connection upper mandrel and
Metallic packing ring is additionally provided with lower mandrel, the lower cavity of lower mandrel；The lower end of lower mandrel be in inverted trapezoidal, metallic packing ring it is upper
End is in the pointed shape with stage portion；The trapezoidal inclined plane of the lower end of lower mandrel and the wedge angle inclined-plane of the upper end of metallic packing ring coordinate
And relative can slide, the trapezoidal bottom surface of the lower end of lower mandrel and the stage portion of metallic packing ring coordinate.
5. well mouth hanger according to claim 3, it is characterised in that in the top of the metallic packing ring provided with top
Silk, the inner end that jackscrew is stretched into along the opening on housing in the inside of cavity, the jackscrew insertion cavity is tapered, and mandrel is provided with
Push inclined-plane so that the tapered end of jackscrew can be engaged with pushing inclined-plane.
6. well mouth hanger according to claim 3, it is characterised in that the mandrel is connected with clamp assemblies, clamping group
Part includes jig arm and two slips up and down being arranged on inside jig arm；Two slips formation Bidirectional suspension structures.
7. well mouth hanger according to claim 4, it is characterised in that the upper end of the upper mandrel connects with hung drum screw thread
Connect, the upper end of the hung drum is provided with fishing socket, and the inside of the hung drum is provided with protective metal shell；
Insulating sheath is provided between the hung drum and the protective metal shell, the bottom of the insulating sheath is close provided with the first insulation
Sealing, the shape of first insulating sealer is constructed such that to be capable of between the bottom of sealed insulation sheath and hung drum
Space between space and hung drum and the core retainer plate；The bottom of first insulating sealer is separated simultaneously with the core retainer plate
Filled with the second insulating sealer.
8. well mouth hanger according to claim 1 or 2, it is characterised in that the bypass component includes mother law orchid, drawing
System, valve, sub- flange are suppressed, mother law orchid is bolted on the housing of well mouth hanger, and sub- flange is bolted
Onto mother law orchid；
The draw systems include drawing body, drawing part, clamping fastener, elastic sealing element, between sub- flange and drawing body
With cavity, provided with the insulated enclosure component being centered around around cable pole in the cavity, drawing part passes through the end of drawing body
Opening is pushed against with insulated enclosure component and contacted；Insulating and sealing member is provided between drawing part and cable pole, in the insulated enclosure
Provided with clamping fastener between part and cable pole；
Suppress the outside that valve is arranged on the sub- flange.
9. the well mouth hanger according to claim 1 or 2 or 3, it is characterised in that the top seal assembly includes flat board
It is logical provided with top pressure in the middle of valve, top flange seat, top blank flange, resistance to pressure valve and pressure gauge, the top blank flange
Road, one end of the top pressure passage is connected with the inner chamber of the flap type, the other end by three-way pipe respectively with it is described resistance to
Pressure valve is connected with the pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324736.8A CN107013177B (en) | 2017-05-10 | 2017-05-10 | Wellhead hanger for heating pipe cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324736.8A CN107013177B (en) | 2017-05-10 | 2017-05-10 | Wellhead hanger for heating pipe cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013177A true CN107013177A (en) | 2017-08-04 |
| CN107013177B CN107013177B (en) | 2023-02-24 |
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ID=59450032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710324736.8A Active CN107013177B (en) | 2017-05-10 | 2017-05-10 | Wellhead hanger for heating pipe cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013177B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086951A (en) * | 2018-01-12 | 2018-05-29 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth T cable suspension arrangements with overcurrent wing passage |
| CN110566152A (en) * | 2019-10-22 | 2019-12-13 | 宝鸡市赛孚石油机械有限公司 | Metal sealing high-pressure pipe cable hanger |
Citations (5)
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| CN206737877U (en) * | 2017-05-10 | 2017-12-12 | 河北华通线缆集团股份有限公司 | A kind of well mouth hanger for heating umbilical |
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| US4154302A (en) * | 1977-10-31 | 1979-05-15 | Shafco Industries, Inc. | Cable feed-through method and apparatus for well head constructions |
| US20070137863A1 (en) * | 2003-08-05 | 2007-06-21 | Stream-Flo Industries, Ltd. | Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device |
| CN201292830Y (en) * | 2008-11-18 | 2009-08-19 | 大港油田集团新世纪机械制造有限公司 | Gusher and electric pump well sucker rod electric heater unit |
| GB201212697D0 (en) * | 2012-07-17 | 2012-08-29 | Artificial Lift Co Ltd | Wellhead assembly for downhole tool deployment |
| CN206737877U (en) * | 2017-05-10 | 2017-12-12 | 河北华通线缆集团股份有限公司 | A kind of well mouth hanger for heating umbilical |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108086951A (en) * | 2018-01-12 | 2018-05-29 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth T cable suspension arrangements with overcurrent wing passage |
| CN108086951B (en) * | 2018-01-12 | 2024-04-19 | 科莱斯（天津）电热科技有限公司 | High-pressure wellhead T-cable suspension device with overcurrent side channel |
| CN110566152A (en) * | 2019-10-22 | 2019-12-13 | 宝鸡市赛孚石油机械有限公司 | Metal sealing high-pressure pipe cable hanger |
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|---|---|
| CN107013177B (en) | 2023-02-24 |
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